POM rod beige POM rod pure material full resin imported POM rod

<:rr, , Polyformaldehyde is an engineering plastic with excellent performance. It is known as DuuraR and Supersteel abroad. It has metal-like hardness, strength
<:rr, , and steel properties. It has good self-lubricating properties, good fatigue resistance, and elasticity in a wide temperature and humidity range. In addition It also has better chemical resistance. At a lower cost than many other engineering plastics, it is replacing some markets traditionally occupied by metals, such as replacing zinc, brass, aluminum and steel to make many parts. Since its inception, it has been widely used in electronics, machinery, and instruments. , daily light industry, automobiles, building materials, agriculture and other fields. Applications in many new fields, such as medical technology, sports equipment, etc., have also shown good growth trends.
<:rr, , application consumption continues to grow
<:rr, , used in sliding and rolling mechanical parts that have strict requirements on lubricity, wear resistance, rigidity and dimensional stability , its performance is particularly superior, so it is mainly used in industrial machinery, automobiles, electronic and electrical products, pipe fittings and irrigation supplies. The Chinese market is growing rapidly, and the apparent consumption in the Chinese market is. million tons, the average annual growth rate of apparent market consumption is. . The apparent consumption in the Chinese market is expected to be. 10,000 tons, ~ the average annual growth rate of market apparent consumption will reach. . By the year, apparent consumption in the Chinese market will increase. 10,000 tons, ~ the average annual growth rate of market apparent consumption will reach. .
<:rr, , The main factors supporting the rapid development of the Chinese market are: the overall development of the national economy has led to the continuous expansion of the application market of one of the five major engineering plastics, and the increasing amount of raw materials produced in China are cheap and easy to obtain, production and trade New breakthroughs are constantly emerging in lucrative application areas, such as the research and development of modified materials. In view of the steady growth of market demand in China, prices will continue to maintain a steady and rising trend.
<:rr, , The technological gap cannot be ignored
: r, >Although China's market demand continues to rise, due to China's relatively late R&D, China's domestic production scale, output and variety, Quality never meets market demand. Compared with the advanced level of other countries, China's production still has problems such as high raw material consumption, small equipment scale, unstable quality, and few varieties and brands. For example,
DuPont: r, >The formaldehyde consumption per ton of the homopolymerization process is. tons, there are also reports of. tons, while the formaldehyde consumption per ton produced in China is ~ tons. Although it has been reduced after improvements, the gap is still large.
: r, >Drying treatment: If the material is stored in a dry environment, drying treatment is usually not required.
<:rr, , Melting temperature: Homopolymer material is ~℃, copolymer material is ~℃.
<:rr, , Mold temperature: ~℃. In order to reduce the shrinkage after molding, a higher mold temperature can be used.
<:rr, , Injection pressure: ~br
<:rr, , Injection speed: medium or high injection speed.
<:rr, , Runners and Gates: Any type of gate can be used. If a tunnel gate is used, it is better to use the shorter type. Hot nozzle runners are recommended for homopolymer materials. For copolymer materials, both internal and external hot runners can be used.
<:rr, , Chemical and physical properties of polyoxymethylene:
<:rr, , is a tough and elastic material with good creep resistance and geometry even at low temperatures. Stability and impact resistance properties. There are both homopolymer and copolymer materials. Homopolymer materials have good ductility and fatigue resistance, but are not easy to process. Copolymer materials have good thermal stability, chemical stability and are easy to process. Both homopolymer and copolymer materials are crystalline materials and do not absorb moisture easily. The high degree of crystallization results in a fairly high shrinkage rate.