Phase shifter positioning plate

Material:POM

What is POM?
POM thermoplastic crystalline polymer. Known as “super steel” or “sai steel”, also known as polyoxymethylene. The English abbreviation is POM. Generally, the polymer obtained by the polymerization of formaldehyde has a low degree of polymerization and is easily depolymerized by heat.
The molecule of polyoxymethylene is a linear polymer with high density and high crystallinity without side chains. Since the bond length of the C-O bond is smaller than that of the C-C bond, the packing density in the direction of the polyoxymethylene chain axis is large. Compared with polyethylene, polyoxymethylene has short carbon-oxygen bonds, high cohesive energy density and high density. 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 the production of wear-reducing and wear-resistant parts, transmission parts, and chemical, instrumentation and other parts.