Black POM Cnc Plastic Machining Prototype Process Deep Groove Ball Bearing Bushing

Black POM Cnc Plastic Machining Prototype Process Deep Groove Ball Bearing Bushing

Definition of POM (polyoxymethylene resin): Polyoxymethylene is a linear polymer with no side chains, high density and

high crystallinity. According to the different chemical structure in its molecular chain, it can be divided into two

types: homopolyoxymethylene and copolyoxymethylene. The important difference between the two is: homopolyoxymethylene

has high density, crystallinity, and melting point, but poor thermal stability, narrow processing temperature range (about 10℃),

and slightly lower stability to acid and alkali; while copolyoxymethylene has high density, crystallinity, and The melting point

and strength are low, but the thermal stability is good, it is not easy to decompose, the processing temperature range is

wide (about 50 ℃), and the stability to acid and alkali is good. It is an engineering plastic with excellent comprehensive

properties. It has good physical, mechanical and chemical properties, especially excellent friction resistance. Commonly

known as Saigang or Duogang, it is the third largest general-purpose plastic. It is suitable for making wear-reducing and

wear-resistant parts, transmission parts, and chemical, instrument and other parts.