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Hotline:400-167-5355 +86-571-82138550

Address: No. 489, Hongtai 6th Road, Xiaoshan Economic Development Zone, Hangzhou, Zhejiang, China. 

Tel: +86-571 - 82138550
Fax: +86-571 - 82859550
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注塑制品色条色线色花分析及解决方法

注塑制品色条色线色花分析及解决方法
这种缺陷的出现主要是采用色母粒着色的塑料制件较常出现的问题,虽然色母粒着色在色型稳定性、色质纯度和颜色迁移性等方面均优于干粉着色、染浆着色,但分配性,亦即色粒在稀释塑料在混合均匀程度却相对较差,制成品自然就带有区域性色泽差异。主要解决办法:
(1)提高加料段温度,特别是加料段后端的温度,使其温度接近或略高于熔融段温度,使色母粒进入熔融段时尽快熔化,促进与稀释均匀混合,增加液态混合机会。
(2)在螺杆转速一定的情况下,增加背压压力使料筒内的熔料温度、剪切作用都得到提高。
(3)修改模具,特别浇注系统,如浇口过宽,融料通过时,紊流效果差,温度提升不高,于是就不均匀,色带模腔,应予改窄。

Address:No. 489, Hongtai 6th Road, Xiaoshan Economic Development Zone, Hangzhou,Zhejiang, China.
Hotline:400-167-5355 +86-571-82138550   Fax:+86-571-82859550

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