PC基础创新塑料(南沙)945A-116

PC工程塑料特性有：无定形料,热稳定性好，熔融温度高，塑件壁不宜太厚等，优点具高强度、使用温度范围广，缺点：成形品设计不良易产生内部应力问题。PC工程塑胶原料其实就是我们所说的工程塑料中的一种，PC有着其自身的特性和优缺点，PC是一种综合性能优良的非晶型热塑性树脂，具有优异的电绝缘性、延伸性、尺寸稳定性及耐化学腐蚀性，较高的强度、耐热性和耐寒性;还具有自熄、阻燃、无毒、可着色等优点，在你生活的各个角落都能见到PC塑料的影子，大规模工业生产及容易加工的特性也使其价格极其低廉。pc工程塑胶原料特性有：1.无定形料、热稳定性好，成型温度范围宽，流动性差。吸湿小，但对水敏感，须经干燥处理。成型收缩率小，易发生熔融开裂和应力集中，故应严格控制成型条件，塑件须经退火处理。2.熔融温度高，粘度高，大于200g的塑件，宜用加热式的延伸喷嘴。3.塑胶流动性差，模具浇注系统以粗、短为原则，宜设冷料井，浇口宜取大，模具宜加热。4.料温过低会造成缺料，塑件无光泽，料温过高易溢边，塑件起泡。                                                                                                                                                                             PCengineering plastic features are: amorphous material, good thermalstability, high melting temperature, plastic wall should not be toothick, advantages of high strength, wide range of temperature,disadvantages: the poor design of the finished product is easy toproduce internal stress problems. PC engineering plastic rawmaterial is actually one of the engineering plastics that we say,PC has its own characteristics and advantages and disadvantages, PCis a kind of amorphous thermoplastic resin with excellentcomprehensive properties, with excellent electrical insulation,extensibility, size stability and chemical corrosion resistance,high strength, heat resistance and cold resistance, but also withself-extinguishing, flame retardant, non-toxic, coloring and otheradvantages, you can see the shadow of PC plastic in every corner ofyour life, large-scale industrial production and easy processingfeatures also make it extremely cheap. PC engineering plasticmaterial characteristics are: 1. Amorphous material, good thermalstability, a wide range of forming temperature, poor liquidity.Hygroscopic small, but sensitive to water, must be dry treatment.Molding shrinkage is small, easy to occur melting cracking andstress concentration, it should be strictly controlled moldingconditions, plastic parts must be annealed. 2. High meltingtemperature, high viscosity, more than 200g of plastic parts,suitable for heating type of extension nozzle. 3. Plastic poorfluidity, mold pouring system to coarse, short as the principle,should be set cold feed well, gate should take large, mold shouldbe heated. Four. Material temperature is too low will causematerial shortage, plastic without luster, material temperature istoo high easy to overflow edge, plasticblistering.