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如何解决浮纤问题
更新时间: 2020-09-16 00:00:00  

可从三个方面:材料、工艺、助剂解决,具体方法如下:

1、材料:使用短纤和低粘度的PA基材,短纤性能较长纤好,计量准确,但需要有侧向进料系统和失重电子计量系统;

2、工艺:适当提高螺杆剪切力、注射速度调高、螺杆速度可以调到百分之七十到百分之九十、增大注射压力、整个螺杆回缩1到2毫米,防止浇口浮纤、对于复杂制件采取分级注塑;

3、助剂:加入百分之零点三到百分之零点六的硅酮和百分之零点五到百分之零点八的表面活性剂。

关键词: 如何 解决 问题

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