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Melt index tester

Author: Released in:2024-04-29 Click:35

Melt index tester

Melt index tester

Main use:

The melt flow rate meter adopts an automatic sampling and balance weighing method to determine the volume flow rate (MFR) of thermoplastic melt according to the formula.

Testing standards:

ISO 1133, ASTM/D1238-98, GB/T3682, GB/T9643, GB/T3682, JB/T5456, ISO1133, GB/T3682-2000

Detection principle:

The plastic melt index meter, also known as the melt flow rate meter, is a plastic extrusion device. The measured hot plastic is placed in the material barrel of the instrument. At a specified temperature, the measured material is heated in a furnace to reach a molten state, and extruded through the small holes of the standard die under a specified load. The extruded material is converted into the mass flow rate MFR (G/10MIN) of the melt passing through the standard die every 10 minutes, or the volume flow rate MNR (CM3/10MIN) of the melt passing through the standard die every 10 minutes, which represents the physical properties of the measured material such as fluidity and viscosity in the molten state.

Application scope:

Applicable to engineering plastics such as fluoroplastics and nylon, as well as plastics with lower melting temperatures such as polyethylene (PE), polypropylene (PP), polyoxymethylene (POM), polystyrene (PS), ABS resin, polycarbonate, etc. Widely used in industries such as plastic production, plastic products, petrochemicals, and related colleges, research institutions, and inspection departments.

Test load:

Level 1: 0.325kg=(piston rod+weight tray+insulation sleeve+No. 1 weight body)=3.187N

Level 2: 1.200 kg=(0.325+No. 2 0.875 weight)=11.77N

Level 3: 2.160 kg=(0.325+No.3 1.835 weight)=21.18N

Level 4: 3.800 kg=(0.325+weight 3.475)=37.26N

Level 5: 5.000 kg=(0.325+weight 4.675)=49.03N

Level 6: 10.000 kg=(0.325+5-grade 4.675 weight+6-grade 5.000 weight)=98.07N

Level 7: 12.500 kg=(0.325+5-grade 4.675 weight+6-grade 5.000+7-grade 2.500 weight)=122.58N

Level 8: 21.600 kg=(0.325+2 0.875 weight+3 1.835+4 3.475+5 4.675+6 5.000+7 2.500+8 2.915 weight)=211.82N

The relative error of the test load is ≤ 0.5%.

Technical parameters:

1. Squeezing and discharging section

Discharge port diameter: Φ 2.095 ± 0.005 mm, discharge port length: 8.000 ± 0.025 mm

Loading cylinder diameter: Φ 9.550 ± 0.025 mm, loading cylinder length: 152 ± 0.1 mm

Diameter of piston rod head: 9.475 ± 0.015 millimeters, length of piston rod head: 6.350 ± 0.100 millimeters

2. Standard test load (8 levels of complete set of weights)

3. Temperature range: Normal room temperature -400 ℃ (500 ℃ optional)

4. Constant temperature accuracy: ± 0.5 ℃

5. Display resolution: 0.1 ℃

6. Cutting method: optional manual or automatic cutting

7. Temperature recovery time: less than 4 minutes

8. Printing: Micro printer automatically prints out

9. Power supply voltage: AC220V ± 10% 50HZ

Main features:

1. Fast heating speed and minimal overshoot

2. High temperature control accuracy

3. After filling, it can quickly return to a constant temperature state

4. Convenient calibration and correction of experimental parameters

5. Manual and automatic cutting test methods can be used

6. Chinese LCD display

7. Equipped with a printer to automatically print out test results

8. Accurate measurement data, simple operation, intuitive and clear, stable and reliable performance