1.山东注塑加工 http://www.zhusujiagong168.com/的原料混有其它杂质或掺杂了不适当的或过量的溶剂或其它添加剂时。In Shandong, the raw materials of the injection molding process are mixed with other impurities or adulterated with inappropriate or excessive solvents or other additives.

2.有些塑料如ABS等，在受潮状况下加热会与水汽发生催化裂化反应，使山东注塑加工制件发生大的应变。Some plastics, such as ABS and so on, under the condition of damp heat and water vapor catalytic cracking reaction, so that the injection molding parts of Shandong.

3.塑料再生次数太多或再生料含量太高，或在山东注塑加工机筒内加热时间太长，都会促使制件脆裂。Too many times of recycled plastic or recycled material content is too high, or in Shandong injection molding machine barrel heating time is too long, will promote the brittle crack.

4.塑料本身质量不佳，例如分子量分布大，含有刚性分子链等不均匀结构的成分占有量过大；或受其它塑料掺杂污染、不良添加剂污染、灰尘杂质污染等是造成山东注塑加工发脆的原因。The plastic is of poor quality, such as large molecular weight distribution, with rigid molecular chain structure of the components such as uneven amount is too large; or doping by other plastic pollution, poor additive pollution, dust impurities pollution is the cause of Shandong injection molding crisp.