POM raw material, one of the synthetic resins, also known as polyformaldehyde resin, POM plastic, race steel material, etc.; is a white or black plastic granules, with high hardness, high steel, high wear resistance characteristics. It is mainly used for gears, bearings, auto parts, machine tools, instrument internals, toys and other products that play a skeleton role.
1、POM is a milky white opaque crystalline linear thermoplastic resin with good overall performance and colorability, high modulus of elasticity, high rigidity and hardness, specific strength and specific rigidity close to the metal;
2. excellent tensile strength, bending strength, creep resistance and fatigue resistance, repeated impact resistance and excellent de-load recovery;
3, small coefficient of friction, wear resistance, good dimensional stability, good surface gloss, high viscoelasticity, excellent electrical insulation, and not affected by temperature; good insulation resistance and not affected by humidity;
4, chemical resistance is excellent: in addition to strong acids, phenols and organic halides, stable to other chemicals, oil resistance; mechanical properties by the temperature is small, with a high heat deflection temperature.
5, the disadvantage is that the flame retardancy is poor, in contact with fire Xu Xu burning, oxygen index is small, even if the addition of flame retardants can not get satisfactory requirements, in addition to weather resistance is not ideal, outdoor applications to add stabilizers.
6、High crystallinity of homopolymer formaldehyde, mechanical strength, rigidity, heat deflection temperature, etc. is better than copolymer formaldehyde, copolymer formaldehyde melting point is low, thermal stability, chemical resistance, flow characteristics, processability are better than homopolymer formaldehyde, the newly developed products are ultra-high flow (fast
Newly developed products are ultra-high flow (fast molding), impact resistance and reduced mold deposition grades, and also inorganic filling and enhancement grades.
Widely used in the manufacture of a variety of sliding, rotating machinery parts, to do a variety of gears, levers, pulleys, sprockets, especially suitable for bearings, hot water valves, precision metering valves, conveyor chain rings and rollers, flow meters, automotive interior and exterior handles, cranks and other car windows
Rotating machinery, oil pump bearing seat and impeller gas switch valve, electronic switch parts, tight solid, lug mirror cover, electric fan parts, heating plate, instrument knob; audio and video tape bearings; various pipelines and agricultural sprinkler system and valves, nozzles, faucets
Head, bath tub parts; switch keyboards, buttons, audio and video tape reels; temperature control timers; power tools, gardening tools parts; in addition as surfboards, sailboats and various sled parts, watches micro gear, sports equipment frame accessories and backpacks with
Various rings, fasteners, lighters, zippers, buckles; medical devices in the heart pacemaker; artificial heart valves, parietal vertebrae, prosthetic limbs, etc.