The melt flow rate meter, also known as the melt index meter, is used to determine the MFR value of various plastics and resins in a viscous flow state. It is suitable for engineering plastics such as polycarbonate, polyarylsulfone, fluoroplastics, nylon, etc. with high melting temperatures, as well as for testing plastics such as polyethylene (PE), styrene (PS), polypropylene (PP), ABS resin, polyoxymethylene (POM), polycarbonate (PC) resin with low melting temperatures. It is widely used in plastic production, plastic products, petrochemical industry, as well as related universities, research units, and inspection departments.

The melt flow rate meter mainly consists of two parts: a heating furnace and a temperature control system. The control box at the bottom of the instrument is the temperature control system part. It adopts a single-chip microcomputer power adjustment and temperature control method, with strong anti-interference ability, high temperature control accuracy, and stable control. The upper part is a heating furnace, where heating wires are wound around copper rods according to a certain pattern to minimize the temperature gradient and meet standard requirements. Operate the control panel on the control box to set the test temperature for the heating furnace.

GB/T 3682-2000 Determination of Mass Flow Rate and Volume Flow Rate of Thermoplastic Melt

This standard specifies the methods for determining the mass flow rate (MFR) and volume flow rate (MVR) of thermoplastic melts under specified temperature and load conditions.

Usually, the test conditions for determining the melt flow rate are specified by the material standards referenced in this standard. The general test conditions for thermoplastic plastics are listed in Appendix A and Appendix B. The melt volume flow rate is useful when comparing filled and unfilled thermoplastic materials. If the melt density at the test temperature is known, the melt flow rate can be measured using an automatic measuring device