Improvement of pre-plasticizing method of plastic injection molding machine

The plastic injection molding machine is pre-molded by the rotary motion of the screw, so that the molten material is continuously conveyed to the front end of the screw along its spiral groove until the set injection amount is satisfied. The SX-ZY-500g plastic injection molding machine used by our company uses mechanical drive screw to rotate and pre-plasticize. In this process, the motor drives the gearbox to drive the screw through the hydraulic clutch to complete the pre-plasticizing function. This part of the structure is in use

Melt Flow Index Tester

A melt flow index (MFI) tester is a laboratory instrument used to measure the flow properties of thermoplastic materials. It is commonly used in the plastics industry to determine the melt flow rate (MFR) or melt volume rate (MVR) of a polymer.
The MFI tester consists of a heated barrel with a die at the bottom. A known weight of the polymer sample is placed in a heated cylinder, which is then pushed through the die under a specified load. The flow rate of the molten polymer is measured and recorded, usually in grams per 10 minutes.
Different types of MFI testers are available, including manual, semi-automatic, and fully automatic models. Some advanced models may also offer additional features, such as temperature control, data logging, and automatic calculation of MFI values.

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Dongguan Best Instrument Technology Co., Ltd , https://www.best-tester.com