XNR400C Melt Flow Rate Tester

1、 Purpose:

The XNR400C melt flow rate meter complies with the GB/T 3682 standard for determining the mass flow rate and volume flow rate of thermoplastic melts. It is used to measure the flowability of thermoplastic polymers at high temperatures, such as polyethylene PE, polypropylene PP, resin ABS, polycarbonate PC, nylon PA6 and other plastic raw materials. This product is widely used in industries such as plastic raw material production plants, plastic product factories, petrochemical companies, as well as relevant colleges, research institutes, and quality inspection units.

2、 Characteristics:

This instrument adopts PLC control, 5-inch touch screen Chinese character display, and touch operation. Automatic temperature control, automatic cutting, real-time display of various test curves, divided into two cutting operation modes: "time controlled cutting" and "displacement cutting". After inputting the cutting cycle, the "time controlled cutting" system starts the automatic cutting of the test system. At the end of the test, it automatically switches to the result screen and displays the volumetric method result. Simply input the total weight of the effective section, and the system automatically calculates the quality method result and melt density; After entering the number of cutting ends for "displacement cutting", the testing system will automatically start cutting. At the end of the test, it will automatically switch to the result screen and display the volumetric method results. The weight of each effective section will be entered separately, and the system will automatically calculate the quality method results and melt density.

IIIWorking principle

The XNR400C melt flow rate meter is a plastic extrusion instrument. It uses a high-temperature heating furnace to bring the measured substance to a molten state under specified temperature conditions. The test substance in this molten state is extruded through a small hole of a certain diameter under a specified load. In plastic production, the melt index is commonly used to represent the physical properties such as flowability and viscosity of polymer materials in a molten state. The so-called melt mass flow rate refers to the average weight of each section of the extruded sample converted into 10 minutes of extrusion volume.

3、 Experimental parameters;

1. Temperature control range: room temperature -400 ℃

2. Temperature control accuracy: within ± 0.5 ℃

3. Temperature resolution: 0.1

4. Measurement range: 0-15000g/10min (MFR)

O.1-3000cm3／10min(MVR)

5. Timing accuracy: O.0lS

6. Weight: Level 7 full load

7. Cutting method: automatic, time controlled

8. Mouth mold: Made of tungsten carbide with a diameter of 2.095mm

9. Power: 450W

10. Power supply: AC220V, 50Hz