PTFE Molding Process Introduction

Fluorinated resins other than Teflon can be formed by thermoplastic resin methods such as molding, transfer molding, injection, extrusion, blow molding, etc.

1. Molding method

This is an ancient plastic molding method. It is suitable for the production of round rod, sheet, pipe and other products and products with simple shape and small batch.

2. Transfer molding method

Transfer molding is to close the mold, and then use high pressure to extrude the fat into the mold from the trough and form the product. Fluorine plastic transfer molding is suitable for the production of large and small valves, pumps and other products. Transfer molding can form high-precision products, the disadvantage is that the raw material consumption is large, the molding pressure used is usually below 9.SMpa, and the processing temperature is similar to the injection molding temperature.
 

3. Injection molding

Injection molding is the same as normal plastic. It is suitable for processing carrier, instrument joints, sockets, pipe fittings, winding spool, shaped bearings, valves, pump shells and impellers and other products.
 

4. Extrusion molding

extrusion molding is suitable for forming film, pipe, bar, monofilament, wire cover and other products.

Therefore, it is necessary to find the optimal range for the specific process and equipment in production. The strength, aperture and voidage of the product are important indicators to determine the quality of the product. PTFE films with small aperture, uniform distribution, high voltage and small nodulation can be produced by corresponding production technology for different products under different use environment and conditions. The above translation results are from Youdao Neural Network Translation (YNMT) · General Scene