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Anonymous users2024-02-08The extrusion plastometer is programmed by the microprocessor according to the standard test process, with fast heating speed and high constant temperature accuracy. After filling, it can quickly return to a constant temperature state. Chinese display, automatic timing, automatic cutting, automatic calculation, automatic printing and other functions. (English operation methods can be configured according to the special requirements of users).
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Anonymous users2024-02-07Melt flow rate meter (melt index tester) is not only suitable for engineering plastics such as polyethylene, polyarylsulfone, fluoroplastics, nylon, etc., which have a high melting temperature, but also suitable for testing plastics with low melting temperature, such as polyethylene, polystyrene, polypropylene ABS resin, and polyoxymethylene resin.
Melt Flow Index Tester Meets Standards:
ASTM D 1238 Standard Test Method for Melt Flow Rate of Thermoplastics with Extrusion Plastometer
MFR in ISO1133:2005 Melt Flow Rate (MFR) for Thermoplastics
GB T3682 Determination of melt mass flow rate and melt volume flow rate of thermoplastics
The melt flow index tester uses a high-temperature heating furnace to make the analyte reach a molten state under the specified temperature conditions. The analyte in this molten state is extruded through a small hole of a certain diameter under a specified load. In the production of plastics, the melt index is often used to express the physical properties such as fluidity and viscosity of polymer materials in the molten state.
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Anonymous users2024-02-06The extrusion plastometer is used to determine the melt mass flow rate (MFR; Unit: g 10min). It is widely used in the determination of melt flow index values of thermoplastics.
It is not only suitable for engineering plastics with high melting temperature of polycarbonate, nylon, fluoroplastics, polyaryllum, but also suitable for the testing of plastics with low melting temperature such as polyethylene, polypropylene, polystyrene and acetal resin, ABS resin, etc., and is widely used in petrochemical, plastic raw materials, plastic production, plastic products and other industries and related testing departments, scientific research units, colleges and universities.
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Anonymous users2024-02-05WJ-400B Melt Flow Index Tester.
Chengde Wanji Instrument Manufacturing **** Ji Baihong 18831479808
The melt flow index tester is in accordance with GB T3682-2000, ASTM D1238 standard, and refer to JB T5456, ISO1133 and other similar standards. Unit: g 10min). It is widely used in the determination of melt flow index values of thermoplastics.
1. The melt flow index tester meets the standard.
The instrument implements the requirements of JB T5456 standard, and applies GB T3682, ASTM D1238, ISO1133 and other standards.
GBT Plastics Determination of Melt Mass Flow Rate (MFR) and Melt Volume Flow Rate (MVR) for Thermoplastics Part 1: Standard Methods.
GBT Plastics Determination of Melt Mass Flow Rate (MFR) and Melt Volume Flow Rate (MVR) of Thermoplastics Part 2: Test Methods for Materials Sensitive to Time-Temperature History and/or Humidity.
Second, the technical parameters of the melt flow index tester.
1. Display mode: liquid crystal display.
2. Measurement method: quality method (MFR).
3. Constant temperature range: room temperature - 450 can be constant temperature at any point. (You can correct the temperature by yourself).
4. Temperature accuracy: .
5. Temperature resolution:
6. Timing range: seconds.
7. Timing accuracy: seconds.
8. Cutting method: automatic, manual and time-controlled.
9. Automatically calculate the melting index, equipped with a printer, and can print the test report.
10. Die material: tungsten carbide.
11. Melt flow rate test range: min
12. Control mode: double temperature control (temperature control on and below the barrel mold) + SSR + electric heating sheet.
14 die plug gauge: bore diameter mm
15 piston: (mm piston head length mm soil mm.)
Fillet the radius of the lower edge, and remove sharp corners from the upper edge.
The piston rod is thin and ring-shaped with reference lines 30 mm apart
16. Fine hole mold: tungsten carbide material.
Outer diameter: ( mm
Aperture: ( mm
Length: ( mm
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Anonymous users2024-02-04The most commonly used test standard for melt flow index is ASTM D 1238, which is measured by a melt index meter. Unit: g 10min
The specific operation process of the test is as follows: the polymer (plastic) raw material to be tested is placed in a small trough, and a thin tube is connected to the end of the trough, the diameter of the thin tube is 8mm, and the length of the tube is 8mm. After heating to a certain temperature (usually 190 degrees), the upper end of the raw material is pressed down by a certain weight by the piston, and the weight of the raw material is measured within 10 minutes, which is the flow index of the plastic.
Sometimes you will see a notation like this: mi25g for 10min, which means that in 10 minutes the plastic is squeezed out 25 grams. Generally, the MI value of commonly used plastics is about 1 25.
The larger the MI, the smaller the viscosity and molecular weight of the plastic raw material, and vice versa, the greater the viscosity and the greater the molecular weight of the plastic.
In addition to the melt mass flow rate (MFR), the melt volume flow rate (MVR) can also be used to determine it.
The melt flow rate, formerly known as the melt index, is defined as: the amount of thermoplastic material extruded in a certain period of time under specified conditions, that is, the mass of the melt passing through the capillary of the standard die every 10 minutes, expressed in mfr, in g 10 minutes. The melt flow rate can characterize the viscous flow characteristics of thermoplastics in the molten state, which is of important guiding significance for ensuring the quality of thermoplastics and their products, and for adjusting the production process.
In recent years, the melt flow rate has been extended from the concept of "mass" to the concept of "volume", that is, the melt volume flow rate has been increased. It is defined as the volume of melt passing through a standard die capillary every 10 min, expressed in mvr and measured in cm3 for 10 min[1].
From the perspective of volume, it provides a scientific guiding parameter for characterizing the viscous flow characteristics of thermoplastics in the molten state and adjusting the production process. For the original melt flow rate, it is explicitly called the melt mass flow rate, which is still denoted as MFR.
The melt mass flow rate and melt volume flow rate have been clearly proposed in the recent ISO standard, and China's standards will be revised accordingly, and in the import and export business, the determination of melt volume flow rate will also be applied soon.
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Anonymous users2024-02-03It is divided into mass method and volume method.
Generally, it is tested by the quality method.
WJ-400B Melt Index Tester LCD screen automatically calculates the melt index result ***.
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Anonymous users2024-02-02The extrusion plastometer uses automatic sampling, balance weighing, and determines the volumetric flow rate (mfr) of the thermoplastic melt according to the formula. It is a kind of plastic extrusion device, the measured thermoplastic is placed in the barrel of the instrument, at the specified temperature, the measured object is made to reach a molten state with a heating furnace, and extruded through the small hole of the standard die under the specified load, and the extrudate is converted into a melt every 10 minutes through the mass flow rate of the standard die MFR (g 10min) to express or the extrudate is converted into the volume flow of the melt through the standard die for 10 minutes MMR (cm3 10min), This is used to express the fluidity, viscosity and other physical properties of the analyte in the molten state, Standard Group (Hong Kong)****.
Detection Criteria:iso 1133、astm/d1238-98、gb/t3682、gb/t9643、gb/t3682、jb/t5456、iso1133、gb/t3682-2000
Technical Parameters:Key features:1. The heating speed is fast, and the overshoot is very small.
2. High constant temperature accuracy.
3. After filling, it can quickly restore the constant temperature state.
4. It is convenient to calibrate and correct the test parameters.
5. Manual and automatic cutting test methods can be adopted.
6. Chinese LCD display.
7. Equipped with a printer, the test results will be automatically printed.
8. The measurement data is accurate, the operation is simple, intuitive and clear, and the performance is stable and reliableTest load:Level 1: Piston rod + weight tray + heat shield + weight body 1) = level 2: kg = (weight number) =
Level 3: kg=(weight)=
Level 4: kg=(weight)=
Level 5: kg=(No. weight)=
Level 6: kg = (weight + weight 6) =
Level 7: kg = (No. weight + No. 6 weight) =
Grade 8: kg = (No. weight + No. 3 No. No. weight) = relative error of test load.
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Anonymous users2024-02-01FR-1811A extrusion plastometer, tall, cheap and easy to use. FR-1811A Melt Flow Rate Meter (Melt Index Tester).
The melt flow rate meter is designed and manufactured in accordance with GB T3682-2000, ASTM D1238-98 standards, and refer to JB T5456, ISO1133 and other similar standards for measuring the volume flow rate (MFR) of thermoplastic melts. The volumetric flow rate is then calculated according to the formula. The final result of the measurement is displayed on the LCD screen of the instrument and output by a microprinter. The instrument is suitable for engineering plastics such as fluoroplastics and nylon, as well as for polyethylene (PE), polypropylene (PP), polyoxymethylene (POM), polystyrene (PS) ABS resin, polycarbonate and other plastics with low melting temperature.
It is widely used in plastic production, plastic products, petrochemical and other industries, as well as relevant colleges and universities, scientific research units, and commodity inspection departments.
Main technical parameters:
1. Extrusion and discharging part:
Outlet diameter: mm.
Length of discharge port: mm.
Barrel diameter: mm.
Barrel length: 152 mm.
Piston head diameter: mm.
Piston head length: mm.
2. Standard test load (kg grade 8).
Level 1: Piston rod + weight tray + heat shield + weight body 1) = level 2: kg = (weight number) = n
Level 3: kg = (number weight) = n
Level 4: kg = (number weight) = n
Level 5: kg = (number weight) = n
Level 6: kg = (weight size + weight size 6) = n
Level 7: kg = (weight + weight 6) = N8: kg = (weight + 3 weight.
weight) = n
Remarks;Relative error of test load.
3. Display mode: LCD display.
4. Print test report: support.
5. Test method: quality method (MFR).
6. Temperature range: room temperature --- 400.
7. Constant temperature accuracy:
8. Resolution:
9. Scraping method: automatic manual.
10. Power supply voltage: 220V 10% 50Hz11, working environment conditions: ambient temperature is 10-40;The relative humidity of the environment is 30 -80;There is no corrosive media around, and it is correctly installed and adjusted to the level on a solid foundation.
No strong air convection;There is no vibration and no strong magnetic field interference around.
12. Instrument dimensions: 510 370 600
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Anonymous users2024-01-31WJ-400B Melt Flow Rate Tester LCD screen Automatically calculate the melt index results Can print the experiment report Continuously boot for tens of thousands of hours.
WJ-400B Melt Flow Rate Tester is used to determine the melt mass flow rate (MFR; Unit: g 10min). It is widely used in the determination of melt flow index values of thermoplastics.
1. Meet the requirements of the standard The instrument implements the requirements of the JB T5456 standard, and applies GB T3682-2000, ISO1133 and other standards.
Second, technical parameters 1, display mode: liquid crystal display.
2. Measurement method: quality method (MFR).
3. Constant temperature range: room temperature - 450 can be constant temperature at any point. (You can correct the temperature by yourself).
4. Temperature accuracy: .
5. Temperature resolution:
6. Timing range: seconds.
7. Timing accuracy: seconds.
8. Cutting method: automatic, manual and time-controlled.
9. Equipped with a printer, the test report can be printed.
10. Die material: tungsten carbide.
11. Die diameter: mm.
3. Standard configuration 1, 1 host.
2. 8 weights (
3. 1 level.
4. 1 die die.
5. 1 mold cleaning stick.
6. 1 barrel cleaning rod.
7. 1 charging rod.
8. 1 hopper.
9. 1 sampling tray.
10. 1 manual knob.
11. 1 set of instructions, packing lists, and certificates.
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