1、POM为乳白色不透明结晶性线性热塑性树脂,具有良好的综合性能和着色性,具有较高的弹性模量,很高的刚性和硬度,比强度和比刚性接近于金属;
2、拉伸强度,弯曲强度,耐蠕变性和耐疲劳性优异,耐反复冲击,去载回复性优;
3、摩擦系数小,耐磨耗,尺寸稳定性好,表面光泽好,有较高的粘弹性,电绝缘性优,且不受温度影响;耐绝缘性好且不受湿度影响;POM N2720-M210、POM N2720M63、POM N2770K、POM S13200021、POM S1320003
4、耐化学***性优:除了强酸、酚类和有机卤化物外,对其他***稳定,耐油;机械性能受温度影响小,具有较高的热变形温度。
5、缺点是阻燃性较差,遇火徐徐燃烧,氧指数小,即使添加阻燃剂也得不到满意的要求,另外耐候性不理想,室外应用要添加稳定剂。、POM S2320003、POM S2320-0035、POM S2320-0035LEV、POM S2320-003PRO
6、均聚甲醛结晶度高,机械强度、刚性、热变形温度等比共聚甲醛好,共聚甲醛熔点低,热稳定性,耐化学腐蚀性,流动特性,加工性均优于均聚甲醛,新开发的产品为超高流动(快速成型),耐冲击和降低模具沉积牌号,也有无机填充,增强牌号。、POM S2320-003P、POM S2320003、POM S2320FC、POM W2320-0035
POM raw material has high strength and light weight. It is often used to replace copper, zinc, tin, lead and other non-ferrous metals. It is widely used in industrial machinery, automobiles, electronic appliances, daily necessities, pipelines and accessories, precision instruments and building materials. POM W2320-0035LEV, POM W2320-0038, POM W2320-003, POM W2320-003RO
POM raw materials are widely used to manufacture various sliding and rotating mechanical parts, gear, lever, pulley, sprocket, especially suitable for bearings, hot water valves, precision metering valves, chain rings and rollers of conveyors, flowmeters, internal and external handles of automobiles, cranks and other window rotating machinery, oil pump bearing seat and impeller gas opening. Valve closing, electronic switching parts, tight solids, wiring column mirror mask, electric fan parts, heating plate, instrument button; bearing of audio and video tape; various pipelines and agricultural sprinkler irrigation systems and valves, sprinklers, taps, bathtub parts; switch keyboard, butt***, audio and video tape reels; temperature control timer; power tools, courtyard Parts for garden finishing tools, surfboa***, sailboats and sledges, watch micro gears, frame accessories for sports equipment and backpacks with various ***les, fasteners, lighters, zippers, ***les, cardiac pacemakers in medical devices, artificial heart valves, apex vertebrae, prostheses, etc. POM W2320003U NC, POM W2320-U03, POM W2320-U035-LEV, POM Z2320003, POM Z23200035
It can replace most non-ferrous metals, automobiles, machine tools, instrumentation internals, bearings, fasteners, gears, springs, pipes, conveyor belt accessories, water cookers, pump shells, water leakers, taps, etc. POM 7054, POM 7510, POM 7513, POM 7520, POM 7554, POM 8520, POM 8554, POM 9054, POM 9054, etc.
Process features:
(1) POM does not need to be dried before processing, and it is better to preheat during processing (about 80 C), which is good for the stability of product size., POM CF452, POM CF454, POM EF450, POM EF500
(2) The processing temperature of POM is very narrow (0-215 C). It will decompose when the residence time in the barrel is slightly longer or the temperature exceeds 220 C, resulting in strong stimulating formaldehyde gas., POM FA405, POM FS410, POM GA510
(3) Pressure holding pressure of POM material should be larger (similar to injection pressure) to reduce pressure drop. Rotation speed of screw should not be too high and residual quantity should be less; POM GA520, POM GN455, POM GN705, POM GN755, POM GT525, POM H***50, POM HC750
(4) POM product shrinkage rate is large, easy to shrink or deformation. POM has high specific heat and die temperature (80-100 C). It is very hot when the product is demoulded. It is necessary to prevent scalding fingers., POM LA541, POM LA543, POM LD755, POM LM511, POM LS701, POM LT200, POM LT350, POM LT802.
(5) POM should be processed under the condition of "medium pressure, medium speed, low material temperature and high mould temperature". Control mould temperature, POM LT804, POM LV450, POM MG210 and POM MT754 are needed in the forming of precision products.
(6) High mechanical strength and rigidity
(7) Maximum fatigue strength
(8) Good environmental resistance and resistance to organic solvents
(9) Strong repetitive impact resistance, good electrical properties, good recovery, self-lubrication, good wear resistance, excellent dimensional stability., POM SH210, POM SH310, POM SH410, POM SH510, POM SH710, POM TFC64, POM TFC64N, POM TFC64N, POM TFC64N
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