News
-
Qingdao Asia-Pacific Rubber & Plastics Exhibition
Qingdao Asia-Pacific Rubber & Plastics Exhibition-Guangdong Guangce Booth No. N4 B28 Dates: July 8-11 Guangce Instruments welcomes you to visit and provide guidance. Our main exhibits at this exhibition include: flatbed tablet press, constant temperature and humidity chamber, ozone aging tester, universal testing machine, impact tester, melt flow indexer, etc.
2026 07/08
-
Guangdong Guangce Instrument—CHINAPLAS 2026
CHINAPLAS 2026 Our Guangdong Guangce Instrument Technology Co., Ltd. also participated in this exhibition. Booth No.: 5.2.C56 Exhibition Time:2026年4月21-24日 Main exhibits: Melt flow indexer, cantilever beam impact tester, tensile testing machine, heat distortion Vicat softening point tester, ultraviolet aging test chamber, xenon lamp aging test chamber, and other instruments for testing the physical properties of various plastic and polymer materials.
2026 04/21
-
Vietnam Plas 2025 - Ho Chi Minh City, Vietnam!
Vietnam Plas 2025 - Ho Chi Minh City, Vietnam! Booth: B1123 Date: Sept 17-20 Location: SECC, Ho Chi Minh City Our Guangdong Guangce Instrument Technology Co., Ltd. also participated in this exhibition. Discover our latest testing equipment solutions. Our team will be there to welcome you and discuss your needs Guangdong Guangce Instrument Technology Co., Ltd. ultraviolet Aging Test Chamber, Xenon Lamp Aging Test Chamber, and other instruments for testing the physical properties of various plastic and polymer materials.And it has received widespread acclaim.
2025 09/17
-
Guangdong Guangce Instrument-2025 CHINAPLAS International Plastics and Rubber Exhibition
Guangdong Guangce Instrument-2025 CHINAPLAS International Plastics and Rubber Exhibition Address: National Exhibition and Convention Center, Shenzhen Dates: April 15-18 Booth: 13G63 Guangce Instrument Technology Co., Ltd. was honored to participate in this exhibition. The booth was incredibly popular, and we received buyers from all over the world who visited our booth to see our products, earning unanimous praise. Our company specializes in: melt flow indexers, pendulum impact testers, tensile testing machines, heat deflection and Vicat softening point testers, constant temperature and humidity chambers, thermal shock chambers, high/low-temperature chambers, xenon lamp and ozone aging chambers, high/low-temperature tensile testers, and flammability test chambers, among other environmental and mechanical testing equipment.
2025 04/15
-
Guangdong Guangce Instrument-2024 CHINAPLAS Shanghai International Plastics & Rubber Exhibition
Guangdong Guangce Instrument-2024 CHINAPLAS Shanghai International Plastics & Rubber Exhibition Address: National Exhibition and Convention Center, Shanghai Hongqiao District, Shanghai Dates: April 23-26 Booth: 5.2C65 Guangce Instrument Technology Co., Ltd. was honored to participate in the 2024 CHINAPLAS Shanghai International Rubber and Plastics Exhibition. The exhibition was very popular, and buyers highly praised our instruments. We communicated with customers from multiple countries at the exhibition, discussing not only products but also technology, which further deepened our research and development and upgrading in the field of testing instruments. The company's primary products include melt flow indexers, pendulum impact testers, tensile testing machines, heat deflection and Vicat softening point testers, constant temperature and humidity chambers, thermal shock chambers, high/low-temperature chambers, xenon lamp and ozone aging chambers, high/low-temperature tensile testers, and flammability test chambers, among other environmental and mechanical testing equipment. These products serve a wide range of sectors, including automotive parts, electronics and electrical appliances, new energy, plastic injection molding, hardware manufacturing, LED/LCD displays, research institutions, and quality inspection agencies.
2024 04/23
-
Technical Training for Sales Team
Our Sales team has learned technical training about the Servo Tensile Testing Instruments from our engineer. Techinical training about: -Tensile test -Bending test Test result:
2024 03/01
-
Guangdong Guangce Instrument-2023 International Plastics & Rubber Exhibition
Guangdong Guangce Instrument Technology Co., Ltd. 2023 International Plastics & Rubber Exhibition Address: Shenzhen International Convention Center Booth No.: 13R59 We sincerely invite all customers and friends to visit and provide guidance. Guangdong Guangce Instrument Technology Co., Ltd. supported by a highly qualified technical team and a professional sales force. Its core business encompasses testing instruments for plastic physical properties, mechanics, environmental reliability, aging characteristics, and flame retardancy. Notably, its annual output of testing instruments for plastic polymer properties ranks among the highest in China, with products compliant with international standards such as GB, ASTM, ISO, JIS, EN, DIN, and UL.
2023 04/17
-
Detailed Information of the tensile testing machine
Summary: The series materials tester is applied to all kinds of hardware, metal, rubber and plastic materials, shoes, leather, clothe,textiles, yarns, an insulator, wire and cable, for many kinds of materials. It tests every items physical test performance. For example, stretch, tear, strip,anti-pressure, bend an-shear, three point an-broken. Theory: This machine is a kind of electric tensile tester which uses the motor to drive ball screw to move fixture. Place the sample between the upper and lower fixture, use a given speed to pull the upper fixture upward, and the upper load cell with sensor to check tensile strength and convert the strength into voltage sign and output to the display screen. And the strength value will be displayed automatically on the computer. Standards: ASTMD903,GB/T16491,GB/T1040,GB/T8808,GB13022,GB/T 2790/2791/2792, CNS- 11888,JIS K6854, PSTC-7 etc. Features: 1. Adopting windows platform, and all the parameter settings can be processed in the dialog box, and it operates easily. 2. Using a single-screen operation; do not need to switch the screen 3. With three languages in Simplified Chinese, Traditional Chinese and English, the software interface can be switched easily 4. The pattern of Test reports can be selfdesignated; test data can be displayed directly in the main screen. 5. Choosing translational, comparative mode at the same time to make a number of curve data comparison 6. With a variety of measurement units, Measure In Imperial & Metric are switchable; 7. With self-return & auto-correction function 8. With automatic magnification function, in order to achieve the most appropriate size of the graphics
2022 05/23
-
Detailed Information of the Melt Flow Index Tester
A. Product introduction It is used to determine the MFR/MVR value of the melt flow rate through the standard die every 10 minutes when various plastics and gums pass through a certain temperature and load in a viscous flow state. It is suitble for melting high temperature polycarbonate, polysulfoxide, fluorine plastics, nylon and other engineering plastics. Also, it is appropriate for the polyformaldehyde, polystrene, polypropylene, ABS resin polyformaldehyde, polycarbonate resin and other low temperature plastic melting test. The machine is widely used in plastic production, plastic products, petrochemical and other industries as well as related universities, scientific research units and commodity inspection departments. B. Test standards ·B-T3682-2018 Determination of melt flow rate and melt volume flow rate for thermoplastics ·ISO1133: 1997 Determination of melt mass flow rate MFR and melt volume flow rate MVR for thermoplastics ·ASTM D1238 Standard test method for determination of flow rate of thermoplastics melt by extruded plastimeters C. Features ·Double temperature control system, and more precise of the temperature control accuracy and higher heating efficiency. ·Double imported sensors, more accurate of the upper and lower temperature gradients, independentl used, and improved service life. ·The barrel is made of imported Hastelloy alloynitriding, which is resistant to humic acid, hydrochloric acid and other corrosive materials, and the die is made of carbon tungsten steel. D. Specifications Model BST-MI-EP Measurement MFR/MFR Corrosion resistance No Display mode Color LCD screen Cutting method Hand automatic integration Temperature control range 100℃-450℃ Temperature control accuracy ±0.2℃ Temperature uniformity ±1℃ Thermal recovery time <4min Time resolution 0.1S Weight loading Manual Computer output Connectable Report method Printout Die Carbon tungsten steel 2.095±0.005mm Bucket Imported Hastelloy 9.550±0.025mm Power AC220V±10% 50HZ
2022 04/13
-
Let's understand the use process of the Pendulum Impact Test Machine
Let's understand the use process of the Pendulum Impact Test Machine Let's understand the use process of the Pendulum Impact Test Machine. The Pendulum Impact Test Machine (also known as the smart pendulum impact tester) can accurately determine the pendulum impact resistance of materials such as plastics, films, paper, composite films, and metal foils. The equipment adopts electronic test with a very high degree of automation, equipped with professional software, which can perform curve analysis, data storage and comparison of test data. Pendulum Impact Test Machine is a more commonly used impact testing machine, which is often used for Charpy impact testing of metal materials. As a testing instrument, in order to ensure its accuracy, you must pay attention to the following aspects in daily operation and use. Let's see. Precautions for the daily operation of the Pendulum Impact Test Machine: If it needs to be moved, the pendulum should be removed to avoid shaking and damaging the relevant parts. Do not put the unused pendulum and accessories together to avoid deformation of the pendulum rod under pressure and bending. The pendulum parts of the Pendulum Impact Test Machine shall not be disassembled or replaced at will, so as to avoid changes in the pendulum torque and the position of the striking center. If it is found that the operating mechanism is not working, the pendulum cannot be hung or the latch cannot be disengaged, the relevant parts can be removed and cleaned with kerosene, coated with a little lubricating oil, and then installed in the original position. If there is no abnormal reason, the pointer should point to the zero position of the dial after the empty strike, and the computer display is 0.01J. If the pointer deviates from the zero position after the empty strike by more than 0.1% of the maximum impact energy of the corresponding pendulum, the calculated display is not 0. Check the following points to see whether the testing machine is level, and whether the position of the active needle is adjusted correctly and tightened.
2021 12/25
-
Melt Flow Index Tester: what is the melt index MFI of plastics
Melt Flow Index Tester: what is the melt index MFI of plastics Plastic products are widely used in life and production. Different instruments are needed to test plastics. Melt Flow Index Tester MFI is one of the test standards of plastics. So what kind of standard is it? We will introduce to you: what is the plastic Melt Flow Index Tester MFI? Melt flow index (MFI) is the flow value of plastic materials during processing. MFI is one of the important indexes of mechanical properties of plastic materials. Testing the characteristics of plastic raw materials MFI refers to testing their processing fluidity characteristics. The Melt Flow Index Tester is used to measure the melt mass flow rate MFR or melt volume flow rate MVR of various plastics and resin polymers in viscous flow state. It is suitable for engineering plastics such as polycarbonate, polysulfone and nylon with high melting temperature. Generally, there are two test methods for the melt index of Plastics: mass method test and volume method test. The Melt Flow Index Tester melt index is tested according to astm-d1238 and GB / t3682 1-2018.
2021 12/20
-
Failure analysis of plastic Melt Flow Index Tester
Failure analysis of plastic Melt Flow Index Tester Plastic Plastic Melt Flow Index Tester is used to measure the melt flow rate of various polymers in viscous flow state. It is suitable for polycarbonate, polysulfone, fluoroplastics, etc. with high melting temperature. It is also suitable for testing plastics with low melting temperature such as polyethylene, polystyrene and resin. The instrument meets the provisions of GB and ISO standards and is widely used in plastic manufacturers, colleges and universities, scientific research institutions and commodity inspection departments. Melt flow rate refers to the mass or volume of thermoplastic melt passing through the standard die every 10 minutes at a certain temperature and load. The instrument is only applicable to the measurement of melt flow rate (MFR) by mass method, and its value can characterize the viscous flow characteristics of thermoplastic in molten state. When testing the plastic Plastic Plastic Melt Flow Index Tester is used to measure the melt flow rate of various polymers in viscous flow state. It is suitable for polycarbonate, polysulfone, fluoroplastics, etc. with high melting temperature. It is also suitable for testing plastics with low melting temperature such as polyethylene, polystyrene and resin. The instrument meets the provisions of GB and ISO standards and is widely used in plastic manufacturers, colleges and universities, scientific research institutions and commodity inspection departments. Melt flow rate refers to the mass or volume of thermoplastic melt passing through the standard die every 10 minutes at a certain temperature and load. The instrument is only applicable to the measurement of melt flow rate (MFR) by mass method, and its value can characterize the viscous flow characteristics of thermoplastic in molten state. When testing the plastic Plastic Melt Flow Index Tester is used to measure the melt flow rate of various polymers in viscous flow state. It is suitable for polycarbonate, polysulfone, fluoroplastics, etc. with high melting temperature. It is also suitable for testing plastics with low melting temperature such as polyethylene, polystyrene and resin. The instrument meets the provisions of GB and ISO standards and is widely used in plastic manufacturers, colleges and universities, scientific research institutions and commodity inspection departments. Melt flow rate refers to the mass or volume of thermoplastic melt passing through the standard die every 10 minutes at a certain temperature and load. The instrument is only applicable to the measurement of melt flow rate (MFR) by mass method, and its value can characterize the viscous flow characteristics of thermoplastic in molten state. When testing the plastic melt index instrument, the sample shall be carefully placed to avoid the powder and particles from entering the internal electronic board of the melt index instrument, resulting in poor heat dissipation performance of the integrated circuit and easy failure. The piston rod of the Melt Flow Index Tester can maintain vertical movement in the inner hole of the barrel, which depends on the two-point positioning of the axis. First, the tolerance fit between the measuring head of the rod and the inner hole of the barrel is about 0.075mm, and second, the tolerance fit between the middle part of the rod and the guide sleeve, so that the rod can move up and down freely in the barrel without skewing and remain vertical. And theoretically, the longer the service life, the smaller the friction coefficient and the more flexible. During operation, the guide sleeve is well fixed, which can effectively prevent the bending deformation of the material rod, which is often neglected by the tester. Moreover, the tester seldom noticed the flexible movement of the material bar. After use for a period of time, there is an obvious thin layer of coking material on the piston rod of the melt index instrument. Even if the piston rod is carefully cleaned every time, this layer of sediment will slowly form, and the inner wall of the guide sleeve will be neglected to be cleaned. After use for a period of time, the coordination between the piston rod and the guide sleeve becomes worse and more viscous. The guide sleeve of the Plastic Melt Flow Index Tester is used to measure the melt flow rate of various polymers in viscous flow state. It is suitable for polycarbonate, polysulfone, fluoroplastics, etc. with high melting temperature. It is also suitable for testing plastics with low melting temperature such as polyethylene, polystyrene and resin. The instrument meets the provisions of GB and ISO standards and is widely used in plastic manufacturers, colleges and universities, scientific research institutions and commodity inspection departments. Melt flow rate refers to the mass or volume of thermoplastic melt passing through the standard die every 10 minutes at a certain temperature and load. The instrument is only applicable to the measurement of melt flow rate (MFR) by mass method, and its value can characterize the viscous flow characteristics of thermoplastic in molten state. When testing the plastic Melt Flow Index Tester, the sample shall be carefully placed to avoid the powder and particles from entering the internal electronic board of the melt index instrument, resulting in poor heat dissipation performance of the integrated circuit and easy failure. The piston rod of the melt index meter can maintain vertical movement in the inner hole of the barrel, which depends on the two-point positioning of the axis. First, the tolerance fit between the measuring head of the rod and the inner hole of the barrel is about 0.075mm, and second, the tolerance fit between the middle part of the rod and the guide sleeve, so that the rod can move up and down freely in the barrel without skewing and remain vertical. And theoretically, the longer the service life, the smaller the friction coefficient and the more flexible. During operation, the guide sleeve is well fixed, which can effectively prevent the bending deformation of the material rod, which is often neglected by the tester. Moreover, the tester seldom noticed the flexible movement of the material bar. After use for a period of time, there is an obvious thin layer of coking material on the piston rod of the melt index instrument. Even if the piston rod is carefully cleaned every time, this layer of sediment will slowly form, and the inner wall of the guide sleeve will be neglected to be cleaned. After use for a period of time, the coordination between the piston rod and the guide sleeve becomes worse and more viscous. The guide sleeve of the melt index meter is not properly placed so that it does not play a guiding role, resulting in the deflection of the piston rod. If these problems occur, the result will directly affect the small value of the measurement result of the melt index meter. In addition, some users have a large workload, long working hours and often work continuously for 24 hours, resulting in rapid depreciation of the melt index instrument and high probability of failure. The laboratory working environment also has a great impact on the normal operation of the instrument. Generally, the plastic Melt Flow Index Tester can work normally at room temperature, and the air conditioner should be turned on when necessary; Moreover, the laboratory environment shall be kept clean without a large amount of dust and dust. is not properly placed so that it does not play a guiding role, resulting in the deflection of the piston rod. If these problems occur, the result will directly affect the small value of the measurement result of the melt index meter. In addition, some users have a large workload, long working hours and often work continuously for 24 hours, resulting in rapid depreciation of the melt index instrument and high probability of failure. The laboratory working environment also has a great impact on the normal operation of the instrument. Generally, the plastic melt index instrument can work normally at room temperature, and the air conditioner should be turned on when necessary; Moreover, the laboratory environment shall be kept clean without a large amount of dust and dust. , the sample shall be carefully placed to avoid the powder and particles from entering the internal electronic board of the melt index instrument, resulting in poor heat dissipation performance of the integrated circuit and easy failure. The piston rod of the melt index meter can maintain vertical movement in the inner hole of the barrel, which depends on the two-point positioning of the axis. First, the tolerance fit between the measuring head of the rod and the inner hole of the barrel is about 0.075mm, and second, the tolerance fit between the middle part of the rod and the guide sleeve, so that the rod can move up and down freely in the barrel without skewing and remain vertical. And theoretically, the longer the service life, the smaller the friction coefficient and the more flexible. During operation, the guide sleeve is well fixed, which can effectively prevent the bending deformation of the material rod, which is often neglected by the tester. Moreover, the tester seldom noticed the flexible movement of the material bar. After use for a period of time, there is an obvious thin layer of coking material on the piston rod of the melt index instrument. Even if the piston rod is carefully cleaned every time, this layer of sediment will slowly form, and the inner wall of the guide sleeve will be neglected to be cleaned. After use for a period of time, the coordination between the piston rod and the guide sleeve becomes worse and more viscous. The guide sleeve of the melt index meter is not properly placed so that it does not play a guiding role, resulting in the deflection of the piston rod. If these problems occur, the result will directly affect the small value of the measurement result of the melt index meter. In addition, some users have a large workload, long working hours and often work continuously for 24 hours, resulting in rapid depreciation of the melt index instrument and high probability of failure. The laboratory working environment also has a great impact on the normal operation of the instrument. Generally, the plastic melt index instrument can work normally at room temperature, and the air conditioner should be turned on when necessary; Moreover, the laboratory environment shall be kept clean without a large amount of dust and dust. is used to measure the melt flow rate of various polymers in viscous flow state. It is suitable for polycarbonate, polysulfone, fluoroplastics, etc. with high melting temperature. It is also suitable for testing plastics with low melting temperature such as polyethylene, polystyrene and resin. The instrument meets the provisions of GB and ISO standards and is widely used in plastic manufacturers, colleges and universities, scientific research institutions and commodity inspection departments. Melt flow rate refers to the mass or volume of thermoplastic melt passing through the standard die every 10 minutes at a certain temperature and load. The instrument is only applicable to the measurement of melt flow rate (MFR) by mass method, and its value can characterize the viscous flow characteristics of thermoplastic in molten state. When testing the plastic Plastic melt index meter is used to measure the melt flow rate of various polymers in viscous flow state. It is suitable for polycarbonate, polysulfone, fluoroplastics, etc. with high melting temperature. It is also suitable for testing plastics with low melting temperature such as polyethylene, polystyrene and resin. The instrument meets the provisions of GB and ISO standards and is widely used in plastic manufacturers, colleges and universities, scientific research institutions and commodity inspection departments. Melt flow rate refers to the mass or volume of thermoplastic melt passing through the standard die every 10 minutes at a certain temperature and load. The instrument is only applicable to the measurement of melt flow rate (MFR) by mass method, and its value can characterize the viscous flow characteristics of thermoplastic in molten state. When testing the plastic melt index instrument, the sample shall be carefully placed to avoid the powder and particles from entering the internal electronic board of the melt index instrument, resulting in poor heat dissipation performance of the integrated circuit and easy failure. The piston rod of the melt index meter can maintain vertical movement in the inner hole of the barrel, which depends on the two-point positioning of the axis. First, the tolerance fit between the measuring head of the rod and the inner hole of the barrel is about 0.075mm, and second, the tolerance fit between the middle part of the rod and the guide sleeve, so that the rod can move up and down freely in the barrel without skewing and remain vertical. And theoretically, the longer the service life, the smaller the friction coefficient and the more flexible. During operation, the guide sleeve is well fixed, which can effectively prevent the bending deformation of the material rod, which is often neglected by the tester. Moreover, the tester seldom noticed the flexible movement of the material bar. After use for a period of time, there is an obvious thin layer of coking material on the piston rod of the melt index instrument. Even if the piston rod is carefully cleaned every time, this layer of sediment will slowly form, and the inner wall of the guide sleeve will be neglected to be cleaned. After use for a period of time, the coordination between the piston rod and the guide sleeve becomes worse and more viscous. The guide sleeve of the melt index meter is not properly placed so that it does not play a guiding role, resulting in the deflection of the piston rod. If these problems occur, the result will directly affect the small value of the measurement result of the melt index meter. In addition, some users have a large workload, long working hours and often work continuously for 24 hours, resulting in rapid depreciation of the melt index instrument and high probability of failure. The laboratory working environment also has a great impact on the normal operation of the instrument. Generally, the plastic melt index instrument can work normally at room temperature, and the air conditioner should be turned on when necessary; Moreover, the laboratory environment shall be kept clean without a large amount of dust and dust. instrument, the sample shall be carefully placed to avoid the powder and particles from entering the internal electronic board of the melt index instrument, resulting in poor heat dissipation performance of the integrated circuit and easy failure. The piston rod of the melt index meter can maintain vertical movement in the inner hole of the barrel, which depends on the two-point positioning of the axis. First, the tolerance fit between the measuring head of the rod and the inner hole of the barrel is about 0.075mm, and second, the tolerance fit between the middle part of the rod and the guide sleeve, so that the rod can move up and down freely in the barrel without skewing and remain vertical. And theoretically, the longer the service life, the smaller the friction coefficient and the more flexible. During operation, the guide sleeve is well fixed, which can effectively prevent the bending deformation of the material rod, which is often neglected by the tester. Moreover, the tester seldom noticed the flexible movement of the material bar. After use for a period of time, there is an obvious thin layer of coking material on the piston rod of the melt index instrument. Even if the piston rod is carefully cleaned every time, this layer of sediment will slowly form, and the inner wall of the guide sleeve will be neglected to be cleaned. After use for a period of time, the coordination between the piston rod and the guide sleeve becomes worse and more viscous. The guide sleeve of the melt index meter is not properly placed so that it does not play a guiding role, resulting in the deflection of the piston rod. If these problems occur, the result will directly affect the small value of the measurement result of the melt index meter. In addition, some users have a large workload, long working hours and often work continuously for 24 hours, resulting in rapid depreciation of the melt index instrument and high probability of failure. The laboratory working environment also has a great impact on the normal operation of the instrument. Generally, the plastic melt index instrument can work normally at room temperature, and the air conditioner should be turned on when necessary; Moreover, the laboratory environment shall be kept clean without a large amount of dust and dust. , the sample shall be carefully placed to avoid the powder and particles from entering the internal electronic board of the melt index instrument, resulting in poor heat dissipation performance of the integrated circuit and easy failure. The piston rod of the melt index meter can maintain vertical movement in the inner hole of the barrel, which depends on the two-point positioning of the axis. First, the tolerance fit between the measuring head of the rod and the inner hole of the barrel is about 0.075mm, and second, the tolerance fit between the middle part of the rod and the guide sleeve, so that the rod can move up and down freely in the barrel without skewing and remain vertical. And theoretically, the longer the service life, the smaller the friction coefficient and the more flexible. During operation, the guide sleeve is well fixed, which can effectively prevent the bending deformation of the material rod, which is often neglected by the tester. Moreover, the tester seldom noticed the flexible movement of the material bar. After use for a period of time, there is an obvious thin layer of coking material on the piston rod of the melt index instrument. Even if the piston rod is carefully cleaned every time, this layer of sediment will slowly form, and the inner wall of the guide sleeve will be neglected to be cleaned. After use for a period of time, the coordination between the piston rod and the guide sleeve becomes worse and more viscous. The guide sleeve of the melt index meter is not properly placed so that it does not play a guiding role, resulting in the deflection of the piston rod. If these problems occur, the result will directly affect the small value of the measurement result of the melt index meter. In addition, some users have a large workload, long working hours and often work continuously for 24 hours, resulting in rapid depreciation of the melt index instrument and high probability of failure. The laboratory working environment also has a great impact on the normal operation of the instrument. Generally, the plastic melt index instrument can work normally at room temperature, and the air conditioner should be turned on when necessary; Moreover, the laboratory environment shall be kept clean without a large amount of dust and dust. is used to measure the melt flow rate of various polymers in viscous flow state. It is suitable for polycarbonate, polysulfone, fluoroplastics, etc. with high melting temperature. It is also suitable for testing plastics with low melting temperature such as polyethylene, polystyrene and resin. The instrument meets the provisions of GB and ISO standards and is widely used in plastic manufacturers, colleges and universities, scientific research institutions and commodity inspection departments. Plastic melt index meter is used to measure the melt flow rate of various polymers in viscous flow state. It is suitable for polycarbonate, polysulfone, fluoroplastics, etc. with high melting temperature. It is also suitable for testing plastics with low melting temperature such as polyethylene, polystyrene and resin. The instrument meets the provisions of GB and ISO standards and is widely used in plastic manufacturers, colleges and universities, scientific research institutions and commodity inspection departments. Melt flow rate refers to the mass or volume of thermoplastic melt passing through the standard die every 10 minutes at a certain temperature and load. The instrument is only applicable to the measurement of melt flow rate (MFR) by mass method, and its value can characterize the viscous flow characteristics of thermoplastic in molten state. When testing the plastic melt index instrument, the sample shall be carefully placed to avoid the powder and particles from entering the internal electronic board of the melt index instrument, resulting in poor heat dissipation performance of the integrated circuit and easy failure. The piston rod of the melt index meter can maintain vertical movement in the inner hole of the barrel, which depends on the two-point positioning of the axis. First, the tolerance fit between the measuring head of the rod and the inner hole of the barrel is about 0.075mm, and second, the tolerance fit between the middle part of the rod and the guide sleeve, so that the rod can move up and down freely in the barrel without skewing and remain vertical. And theoretically, the longer the service life, the smaller the friction coefficient and the more flexible. During operation, the guide sleeve is well fixed, which can effectively prevent the bending deformation of the material rod, which is often neglected by the tester. Moreover, the tester seldom noticed the flexible movement of the material bar. After use for a period of time, there is an obvious thin layer of coking material on the piston rod of the melt index instrument. Even if the piston rod is carefully cleaned every time, this layer of sediment will slowly form, and the inner wall of the guide sleeve will be neglected to be cleaned. After use for a period of time, the coordination between the piston rod and the guide sleeve becomes worse and more viscous. The guide sleeve of the melt index meter is not properly placed so that it does not play a guiding role, resulting in the deflection of the piston rod. If these problems occur, the result will directly affect the small value of the measurement result of the melt index meter. In addition, some users have a large workload, long working hours and often work continuously for 24 hours, resulting in rapid depreciation of the melt index instrument and high probability of failure. The laboratory working environment also has a great impact on the normal operation of the instrument. Generally, the plastic melt index instrument can work normally at room temperature, and the air conditioner should be turned on when necessary; Moreover, the laboratory environment shall be kept clean without a large amount of dust and dust. refers to the mass or volume of thermoplastic melt passing through the standard die every 10 minutes at a certain temperature and load. The instrument is only applicable to the measurement of melt flow rate (MFR) by mass method, and its value can characterize the viscous flow characteristics of thermoplastic in molten state. When testing the plastic Plastic melt index meter is used to measure the melt flow rate of various polymers in viscous flow state. It is suitable for polycarbonate, polysulfone, fluoroplastics, etc. with high melting temperature. It is also suitable for testing plastics with low melting temperature such as polyethylene, polystyrene and resin. The instrument meets the provisions of GB and ISO standards and is widely used in plastic manufacturers, colleges and universities, scientific research institutions and commodity inspection departments. Melt flow rate refers to the mass or volume of thermoplastic melt passing through the standard die every 10 minutes at a certain temperature and load. The instrument is only applicable to the measurement of melt flow rate (MFR) by mass method, and its value can characterize the viscous flow characteristics of thermoplastic in molten state. When testing the plastic melt index instrument, the sample shall be carefully placed to avoid the powder and particles from entering the internal electronic board of the melt index instrument, resulting in poor heat dissipation performance of the integrated circuit and easy failure. The piston rod of the melt index meter can maintain vertical movement in the inner hole of the barrel, which depends on the two-point positioning of the axis. First, the tolerance fit between the measuring head of the rod and the inner hole of the barrel is about 0.075mm, and second, the tolerance fit between the middle part of the rod and the guide sleeve, so that the rod can move up and down freely in the barrel without skewing and remain vertical. And theoretically, the longer the service life, the smaller the friction coefficient and the more flexible. During operation, the guide sleeve is well fixed, which can effectively prevent the bending deformation of the material rod, which is often neglected by the tester. Moreover, the tester seldom noticed the flexible movement of the material bar. After use for a period of time, there is an obvious thin layer of coking material on the piston rod of the melt index instrument. Even if the piston rod is carefully cleaned every time, this layer of sediment will slowly form, and the inner wall of the guide sleeve will be neglected to be cleaned. After use for a period of time, the coordination between the piston rod and the guide sleeve becomes worse and more viscous. The guide sleeve of the melt index meter is not properly placed so that it does not play a guiding role, resulting in the deflection of the piston rod. If these problems occur, the result will directly affect the small value of the measurement result of the melt index meter. In addition, some users have a large workload, long working hours and often work continuously for 24 hours, resulting in rapid depreciation of the melt index instrument and high probability of failure. The laboratory working environment also has a great impact on the normal operation of the instrument. Generally, the plastic melt index instrument can work normally at room temperature, and the air conditioner should be turned on when necessary; Moreover, the laboratory environment shall be kept clean without a large amount of dust and dust. , the sample shall be carefully placed to avoid the powder and particles from entering the internal electronic board of the melt index instrument, resulting in poor heat dissipation performance of the integrated circuit and easy failure. The piston rod of the melt index meter can maintain vertical movement in the inner hole of the barrel, which depends on the two-point positioning of the axis. First, the tolerance fit between the measuring head of the rod and the inner hole of the barrel is about 0.075mm, and second, the tolerance fit between the middle part of the rod and the guide sleeve, so that the rod can move up and down freely in the barrel without skewing and remain vertical. And theoretically, the longer the service life, the smaller the friction coefficient and the more flexible. During operation, the guide sleeve is well fixed, which can effectively prevent the bending deformation of the material rod, which is often neglected by the tester. Moreover, the tester seldom noticed the flexible movement of the material bar. After use for a period of time, there is an obvious thin layer of coking material on the piston rod of the melt index instrument. Even if the piston rod is carefully cleaned every time, this layer of sediment will slowly form, and the inner wall of the guide sleeve will be neglected to be cleaned. After use for a period of time, the coordination between the piston rod and the guide sleeve becomes worse and more viscous. The guide sleeve of the melt index meter is not properly placed so that it does not play a guiding role, resulting in the deflection of the piston rod. If these problems occur, the result will directly affect the small value of the measurement result of the melt index meter. In addition, some users have a large workload, long working hours and often work continuously for 24 hours, resulting in rapid depreciation of the melt index instrument and high probability of failure. The laboratory working environment also has a great impact on the normal operation of the instrument. Generally, the plastic Plastic melt index meter is used to measure the melt flow rate of various polymers in viscous flow state. It is suitable for polycarbonate, polysulfone, fluoroplastics, etc. with high melting temperature. It is also suitable for testing plastics with low melting temperature such as polyethylene, polystyrene and resin. The instrument meets the provisions of GB and ISO standards and is widely used in plastic manufacturers, colleges and universities, scientific research institutions and commodity inspection departments. Melt flow rate refers to the mass or volume of thermoplastic melt passing through the standard die every 10 minutes at a certain temperature and load. The instrument is only applicable to the measurement of melt flow rate (MFR) by mass method, and its value can characterize the viscous flow characteristics of thermoplastic in molten state. When testing the plastic melt index instrument, the sample shall be carefully placed to avoid the powder and particles from entering the internal electronic board of the melt index instrument, resulting in poor heat dissipation performance of the integrated circuit and easy failure. The piston rod of the melt index meter can maintain vertical movement in the inner hole of the barrel, which depends on the two-point positioning of the axis. First, the tolerance fit between the measuring head of the rod and the inner hole of the barrel is about 0.075mm, and second, the tolerance fit between the middle part of the rod and the guide sleeve, so that the rod can move up and down freely in the barrel without skewing and remain vertical. And theoretically, the longer the service life, the smaller the friction coefficient and the more flexible. During operation, the guide sleeve is well fixed, which can effectively prevent the bending deformation of the material rod, which is often neglected by the tester. Moreover, the tester seldom noticed the flexible movement of the material bar. After use for a period of time, there is an obvious thin layer of coking material on the piston rod of the melt index instrument. Even if the piston rod is carefully cleaned every time, this layer of sediment will slowly form, and the inner wall of the guide sleeve will be neglected to be cleaned. After use for a period of time, the coordination between the piston rod and the guide sleeve becomes worse and more viscous. The guide sleeve of the melt index meter is not properly placed so that it does not play a guiding role, resulting in the deflection of the piston rod. If these problems occur, the result will directly affect the small value of the measurement result of the melt index meter. In addition, some users have a large workload, long working hours and often work continuously for 24 hours, resulting in rapid depreciation of the melt index instrument and high probability of failure. The laboratory working environment also has a great impact on the normal operation of the instrument. Generally, the plastic Plastic melt index meter is used to measure the melt flow rate of various polymers in viscous flow state. It is suitable for polycarbonate, polysulfone, fluoroplastics, etc. with high melting temperature. It is also suitable for testing plastics with low melting temperature such as polyethylene, polystyrene and resin. The instrument meets the provisions of GB and ISO standards and is widely used in plastic manufacturers, colleges and universities, scientific research institutions and commodity inspection departments. Melt flow rate refers to the mass or volume of thermoplastic melt passing through the standard die every 10 minutes at a certain temperature and load. The instrument is only applicable to the measurement of melt flow rate (MFR) by mass method, and its value can characterize the viscous flow characteristics of thermoplastic in molten state. When testing the plastic melt index instrument, the sample shall be carefully placed to avoid the powder and particles from entering the internal electronic board of the melt index instrument, resulting in poor heat dissipation performance of the integrated circuit and easy failure. The piston rod of the melt index meter can maintain vertical movement in the inner hole of the barrel, which depends on the two-point positioning of the axis. First, the tolerance fit between the measuring head of the rod and the inner hole of the barrel is about 0.075mm, and second, the tolerance fit between the middle part of the rod and the guide sleeve, so that the rod can move up and down freely in the barrel without skewing and remain vertical. And theoretically, the longer the service life, the smaller the friction coefficient and the more flexible. During operation, the guide sleeve is well fixed, which can effectively prevent the bending deformation of the material rod, which is often neglected by the tester. Moreover, the tester seldom noticed the flexible movement of the material bar. After use for a period of time, there is an obvious thin layer of coking material on the piston rod of the melt index instrument. Even if the piston rod is carefully cleaned every time, this layer of sediment will slowly form, and the inner wall of the guide sleeve will be neglected to be cleaned. After use for a period of time, the coordination between the piston rod and the guide sleeve becomes worse and more viscous. The guide sleeve of the melt index meter is not properly placed so that it does not play a guiding role, resulting in the deflection of the piston rod. If these problems occur, the result will directly affect the small value of the measurement result of the melt index meter. In addition, some users have a large workload, long working hours and often work continuously for 24 hours, resulting in rapid depreciation of the melt index instrument and high probability of failure. The laboratory working environment also has a great impact on the normal operation of the instrument. Generally, the plastic melt index instrument can work normally at room temperature, and the air conditioner should be turned on when necessary; Moreover, the laboratory environment shall be kept clean without a large amount of dust and dust. can work normally at room temperature, and the air conditioner should be turned on when necessary; Moreover, the laboratory environment shall be kept clean without a large amount of dust and dust. can work normally at room temperature, and the air conditioner should be turned on when necessary; Moreover, the laboratory environment shall be kept clean without a large amount of dust and dust.
2021 12/06
-
Plastic bottles have "new life" in 2 minutes with the help of Melt Flow Index Tester
Plastic bottles have "new life" in 2 minutes with the help of Melt Flow Index Tester Plastic bottles have "new life" in 2 minutes with the help of Melt Flow Index Tester The previously discarded garbage now has a new place to go. It takes less than 2 minutes. The plastic bottles originally in the garbage can are transferred to the resource recycling station of 8 square meters. Their "life" trajectory begins to change. They will not be land-filled or incinerated as domestic garbage, but "reborn" with the help of Melt Flow Index Tester. Their new destination The bottle body of plastic bottles will be transferred to the factory for storage after primary processing, slicing, crushing, Melt Flow Index Tester detection and other processes, and then transported to other provinces by fashion ship for recycled plastic products. Experts said: "we will separate the bottle body and bottle cap. The PET bottle body will be sliced, transported out of the island and sold to manufacturers producing recycled plastic products to make recycled fabrics; while the PVC bottle cap will be used for other purposes." Plan national renewable resource recycling outlets, actively promote the construction of outlets and projects related to renewable resource utilization, guide and support the development of renewable resource recycling industry, and promote the recycling and reuse of waste plastic products. Thanks for Melt Flow Index Tester.
2021 11/29
-
Maintain the plastic Melt Flow Index Tester regularly
Maintain the plastic Melt Flow Index Tester regularly The plastic Melt Flow Index Tester has the advantages of simple structure, convenient use, accurate measurement and stable and reliable performance. This instrument is not only suitable for polyethylene, polypropylene, polystyrene, ABS resin, etc The test of plastics with low melting temperature is also applicable to the test of engineering plastics such as polycarbonate, fluoroplastics and nylon with high melting temperature. Therefore, it is widely used in plastic production, plastic products, petrochemical and other industries, as well as relevant colleges and universities, scientific research institutions and commodity inspection departments. When using the Melt Flow Index Tester, no matter how good the quality is, it will be damaged after using it for a period of time. In this way, maintenance should be carried out to prevent the damage from getting worse and worse. We can only replace it with a new one, which is not worth the loss. The same is true for the Melt Flow Index Tester. We must do a good job in maintenance when it is worn. 1. The working environment and conditions shall fully meet the specified requirements, including room temperature, relative humidity, power supply voltage and installation foundation (generally, there shall be no vibration, corrosive medium and strong electromagnetic field interference around the machine). In addition, some instruments have special requirements for the environment and shall be maintained and maintained in strict accordance with the operating instructions; 2. The test shall be conducted in strict accordance with the operating procedures. It is strictly prohibited to conduct tests beyond the test scope. After the test, the instrument shall be restored to the initial position to ensure the normal operation of the next test; 3. Keep clean before and after use and avoid collision; 4. When not in use, appropriate protective measures shall be taken. If the Melt Flow Index Tester is not used for a long time, it should be plugged in and started regularly. When it is reused, it can be used only after re inspection. 5. Cleaning and inspection shall be carried out regularly, and the instruments to be calibrated shall be calibrated to ensure the accuracy of the instruments;
2021 11/26
-
The policy system of Melt Flow Index Tester needs to be improved
The full life cycle of instrumentation products such as Melt Flow Index Tester from basic research and development to promotion and application, involving science and technology innovation policies, promotion and application policies, industry management policies, public service system construction policies, tax preferential policies, infrastructure construction policies, and macro-comprehensive policies Therefore, the high-quality development of the instrumentation industry requires the coordination of different policies and systems. In particular, the formulation and implementation of macro-comprehensive policies and promotion and application policies require not only the competent departments of science and technology, industry, quality supervision and inspection, but also the Commission for Science, Technology and Industry for National Defense, Development and Reform Commission, Energy Bureau, Emergency Management Department, Health Commission, and Ministry of Agriculture. , Ministry of Natural Resources, Customs and other instrumentation application fields. However, my country currently lacks the top-level design and working mechanism of the instrumentation-related policy system, and the effect of synergy between different policy systems is not obvious. Most instruments and meters such as Automatic Melt Flow Index Tester and Semi-Automatic Melt Flow Index Tester have measurement functions, so measuring instruments and metrological verification regulations are the "basic criteria" for the development of instrumentation products. With the development of instrumentation technology and the broadening of application fields, relevant measurement standards and technical specifications in different fields in our country must be continuously improved. At present, although my country's metrological standards and technical specifications have actively adopted metrological verification procedures and have also actively participated in the formulation of metrological verification procedures, they are still different from the metrological system in terms of some measurement instruments, measurement standards and metrological verification. It will inevitably affect the transformation of my country's instrumentation products. For example, since January 2018, the new legal metrology organization certificate mutual recognition system (OIML-CS) has proposed 39 measuring instruments and metrological verification procedures, while my country currently only has non-automatic weighing instruments, weighing sensors, and gravity-type automatic loading 11 kinds of measuring instrument certification qualifications such as weighing instruments, discontinuous cumulative automatic weighing instruments, high-precision linear rulers, etc., and the conversion of OIML certificates to existing domestic measurement certifications, and mutual recognition of domestic and foreign measurement verification regulations are also actively being promoted.
2021 11/25
-
Calculation formula of Melt Flow Index Tester for melt flow rate meter
Calculation formula of Melt Flow Index Tester for melt flow rate meter Structure and working principle of Melt Flow Index Tester rate meter: The melt flow rate meter of Melt Flow Index Tester is to use a high-temperature heating furnace to make the measured object reach the molten state under the specified temperature conditions. The measured object in this molten state is extruded through a small hole with a certain diameter under the specified weight load gravity, and the mass of the extruded object is converted into the extrusion amount of 10 minutes. In the plastic production of industrial enterprises and the research of scientific research institutions, the " (mass)Melt Flow Index Tester flow rate" is often used to express the flow performance of polymer materials in the molten state. The melt flow rate of Melt Flow Index Tester is expressed by MFR in grams per 10 minutes (i.e. g / 10min) Formula: MFR( θ. mnom)=tref × m/t=600 × m/t(g/10min) Where: θ -- Test temperature Mnom -- nominal load kg M - average mass of material section, G Tref -- reference time (10min): 600 seconds T -- cutting time interval (unit: s). For example, a section of material is cut every 30 seconds, and the mass of each section is 0.152 g, 0.153 g and 0.154 g respectively. Average mass of material section M = (0.152 + 0.153 + 0.154) ÷ 3 = 0.153 (g) Substitution formula: MFR = 600 × 0.153 / 30 = 3.06 (g / 10min)
2021 11/10
-
Let's understand the use process of computer-controlled Pendulum Impact Test Machine
Computer controlled Pendulum Impact Test Machine is a commonly used impact testing machine, which is commonly used in the Charpy impact test of metal materials. It can accurately measure the pendulum impact strength of plastic, film, paper, composite film, metal foil and other materials. The equipment adopts electronic testing, and the degree of automation is very high. Equipped with professional software, curve analysis, data storage and test data comparison can be carried out. In order to ensure its accuracy, we must pay attention to the following aspects in daily operation and use. Precautions for daily operation of computer-controlled Pendulum Impact Test Machine: if it needs to be moved, the pendulum shall be removed to avoid shaking and damaging relevant parts. Do not put the unused pendulum together with accessories, so as to avoid the compression, bending and deformation of the pendulum rod. The pendulum parts of the Pendulum Impact Test Machine shall not be disassembled or replaced at will to avoid changing the pendulum torque and impact center position. If the operating mechanism is found to be ineffective, the pendulum cannot be hung or the bolt cannot be removed, the relevant parts can be removed, cleaned with kerosene, coated with a little lubricating oil, and then installed on site. If there is no abnormal reason, the pointer should point to the zero position of the dial after the air raid, and the computer display is 0.01j. If the pointer deviation from zero position after air strike is greater than 0.1% of the maximum impact energy of the corresponding pendulum and the calculation display is not 0, check whether the Pendulum Impact Test Machine is leveled and whether the position of the driving needle is adjusted correctly and tightened through the following points. Computer controlled Pendulum Impact Test Machine will produce some small faults after long-term use. About common faults encountered: 1. In the tensile test, the fracture of the sample is always on both sides. 2. The sensitivity of dial pointer is poor, the position of pendulum is abnormal, and the pendulum rod of impact testing machine is not vertically aligned. 3. Abnormal return hammer, fast or slow. The passive needle cannot stop at any position and does not coincide with the main needle. 4. During loading, the oil circuit system leaks seriously or the oil pipe is damaged. 5. After the sample is broken, the pendulum falls back quickly, causing impact. Troubleshooting of impact tester: 1. If the clamping claw is not properly placed during clamping, make the clamping claw symmetrically clamp the sample as required. 2. The jaw quality is poor and the teeth are damaged, which not only affects the different centers of the jaw, but also makes the sample slide during the experiment, making the yield point difficult to identify.
2021 11/01
-
How to maintain the Melt Flow Index Tester correctly?
How to maintain the Melt Flow Index Tester correctly? The Melt Flow Index Tester is mainly used to test the uniformity of polymer flow rate of thermoplastic and other materials with low melt viscosity (flow rate between 0.15-50g / 10min). The equipment is designed in accordance with GB / 3682, iso1133:1997 and other thermoplastic melt flow rate test methods. We found that good maintenance and correct operation habits have a direct impact on improving the service life of the electric Melt Flow Index Tester. 1. The working environment and conditions of the melt index instrument shall fully meet the specified requirements, including room temperature, relative humidity, power supply voltage and installation foundation (generally, there shall be no vibration, corrosive medium and strong electromagnetic field interference around the machine). In addition, some instruments have special requirements for the environment and shall be maintained in strict accordance with the operating instructions; 2. Keep the Melt Flow Index Tester clean and avoid collision before and after use; 3. When the Melt Flow Index Tester is not used for a long time, it should be plugged in and started regularly; 4. The Melt Flow Index Tester shall be in the charge of a specially assigned person. The test shall be carried out in strict accordance with the operating procedures. It is strictly prohibited to carry out tests beyond the test range. After the test, the instrument shall be restored to its original position to ensure the normal operation of the next test; 5. The Melt Flow Index Tester shall be cleaned and inspected regularly, and the instrument to be calibrated shall be calibrated to ensure the accuracy of the instrument; 6. When the Melt Flow Index Tester is not used, appropriate protective measures shall be taken. If it is not used for a long time, it can be used only after re inspection; 7. Regular calibration, etc.
2021 10/26
-
Operation steps of automatic Melt Flow Index Tester
Operation steps of automatic Melt Flow Index Tester The automatic Melt Flow Index Tester is used to measure the MFR value of various plastics and resins passing through a certain temperature and load in the viscous flow state and passing through the standard die every 10 minutes. It is suitable for engineering plastics such as polycarbonate, polysulfone and nylon with high melting temperature, as well as polyethylene (PE), polystyrene (PS), polypropylene (PP), ABS resin and Polyoxymethylene (POM) , polycarbonate (PC) resin and other plastics with low melting temperature. The automatic Melt Flow Index Tester adopts the method of automatic sampling and balance weighing, and then calculates the volume flow rate according to the formula. The measurement results are displayed on the LCD screen of the Melt Flow Index Tester instrument and output by the micro printer. The Melt Flow Index Tester instrument has accurate measurement data and simple operation. The specific steps are as follows: 1. Turn on the power supply, set the temperature, sample cutting time interval and cutting times, wait for temperature rise, and ensure that the constant temperature of the barrel is greater than 15 minutes before testing the sample; 2. Weigh 3-8g of sample according to the pre calculated flow rate; 3. Prepare gauze, tweezers, rags and die cleaning rod; 4. After the temperature is constant, put the weighed sample into the barrel with a funnel, and hold the piston to compact the sample. This process is completed within 1 minute. 5. After waiting for four minutes, the temperature shall return to the selected temperature, and the selected load shall be added to the piston at this time; The piston descends under the action of gravity until the thin strip without bubbles is extruded; 6. Pre cut and start timing, automatically cut according to the set time interval, and the length of each cutting section is 10-20mm; 7. After cutting, press out the die and surplus material quickly, clean the die quickly while it is hot, and clean the inner chamber of the barrel with gauze; 8. After the section is cooled, pay attention to weighing, accurate to 1mg, and calculate the average mass.
2021 10/10
-
The working principle of melt flow index tester
The melt flow index tester uses a high-temperature heating furnace to make the measured object reach a molten state under a specified temperature condition. The test object in this molten state is subjected to an extrusion test through a small hole of a certain diameter under a prescribed weight load. In the research of plastic production and scientific research units of industrial enterprises, the "melt (mass) flow rate" is often used to express the physical properties of polymer materials in the molten state such as fluidity and viscosity. The melt flow rate refers to the average mass of the sample in each section of the extrudate converted into the extrusion volume for 10 minutes. Melt (mass) flow rate is expressed in MFR, the unit is: g/10 minutes (ie g/min) Formula :MFR(θ, mnom)= Tref ×m/t=600×m/t(g/10min) In the formula: θ-test temperature mnom--nominal load Kg m--The average mass of the cut g tref--reference time (10min): 600 t--The unit of time interval for cutting off: seconds. Example: A set of plastic samples are cut every 30 seconds, and the mass results of each section are: 0.081g, 0.086g, 0.081g, 0.089g, 0.082g. The average mass of the cut m=(0.081+0.086+0.081+0.089+0.082)÷5=0.0838≈0.084(g) Substitute into the formula: MFR=600×0.084/30=1.680 (g/10 minutes)
2021 09/22
Loading ...
Total 25 News
