注塑工艺对PC/ABS检测性能影响研究

Study on the influence of injection molding process on PC/ABS testing performance

采用Krauss Maffei PX-120注塑机,对利华益维远化学股份有限公司PC/ABS合金(WY-A185)改变注塑工艺制作标准件,对比其拉伸强度、弯曲强度和冲击强度,研究注塑条件对检测树脂性能的影响,并得到PC/ABS(WY-A185)注塑温度260℃,射速50 mm/s,保压压力700 bar,保压时间5 s,塑化背压30 bar,冷却时间25 s,模温80℃制得标准件性能最佳。

Adopt Krauss Maffei PX-120 injection molding machine to change the injection molding process of PC/ABS alloy(WY-A185)of Lihuayi Weiyuan and make standard parts.By comparing the tensile strength,flexural strength and impact strength,the influence of injection conditions on the properties of the resin was studied.The results show that when the injection temperature of PC/ABS(WY-A185)is 260℃,the injection rate is 50 mm/s,the holding pressure is 700 bar,the holding time is 5 s,the plasticizing back pressure is 30 bar,the cooling time is 25 s,and the mold temperature is 80℃,the performance of the standard part is the best.