Plastic parts type machining Part processing

Plastic parts play an important role in modern industrial production, among which high-performance plastic materials such as PTFE (polytetrafluoroethylene), PEI (polyetherimide), PEEK (polyether ether ketone), and LCP (liquid crystal polymer) are widely used in aerospace, medical equipment, electronic communication and other fields due to their unique properties. This article will provide a detailed introduction to the processing and characteristics of these four plastic materials.

Processing of PTFE plastic parts
PTFE is a plastic material with excellent corrosion resistance, high temperature resistance, and low friction coefficient. The processing mainly includes extrusion molding, molding, and turning processing. During the extrusion molding process, it is necessary to strictly control the extrusion temperature and speed to ensure the dimensional accuracy and surface quality of the product. Compression molding is suitable for producing PTFE parts with complex shapes, requiring the selection of appropriate molds and process parameters. Turning is the process of precision machining on formed products to meet higher precision requirements.

Processing of PEI plastic parts
PEI is a high-performance thermoplastic with excellent heat resistance, mechanical strength, and chemical stability. Its processing methods mainly include injection molding and extrusion molding. Injection molding is suitable for producing large quantities of PEI parts, requiring reasonable design of molds and injection molding processes to ensure product quality and production efficiency. Extrusion molding is suitable for producing continuous PEI profiles, and it is also necessary to control the extrusion temperature and speed to achieve good product performance.

Processing of PEEK plastic parts
PEEK is a high-performance plastic material that is resistant to high temperature, corrosion, and wear. Its processing process is similar to PEI, and mainly adopts injection molding and extrusion molding. Due to the high melting viscosity of PEEK, higher temperatures and pressures are required during the processing, and attention should also be paid to controlling the cooling rate to prevent internal stress and deformation of the product

Processing of LCP plastic parts
LCP is a liquid crystal polymer with excellent mechanical properties, electrical properties, and thermal stability. Its processing methods include injection molding, film extrusion, and hot forming. Due to the high molecular orientation of LCP, strict control of temperature and pressure is required during the processing to achieve good orientation and performance. In addition, LCP's film extrusion and hot forming technology is also widely used in the production of high-precision and high-performance film and sheet products.