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注塑制品出现色条色线色花怎么解决?

来源:http://www.sdlqmj.com 日期:2019-06-13 发布人:admin 浏览次数:
注塑制品出现色条色线色花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。下面济南注塑模具加工厂家给大家总结一下解决办法:
The defects of color stripe, color line and color pattern in injection moulding products are mainly the common problems of plastic parts colored by color masterbatch. Although Color Masterbatch coloring is superior to dry powder coloring and dyeing paste coloring in color stability, color purity and color migration, its distribution, i.e. color granules are relatively poor in mixing uniformity of diluted plastics, and the finished products will naturally take on a band. There are regional color differences. The following Jinan injection mold processing factory to sum up the solution for you:
(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。
(1) Increase the temperature of the feeding section, especially the temperature at the back end of the feeding section, make the temperature close to or slightly higher than that of the melting section, melt the masterbatch as soon as possible when it enters the melting section, promote uniform mixing with dilution, and increase the chance of liquid mixing.
(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。
(2) When the screw speed is fixed, the melt temperature and shearing effect in the barrel are increased by increasing the back pressure.
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(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。
(3) Modify the mould, especially the gating system, such as the gate is too wide, the effect of turbulence is poor and the temperature rise is not high when the melting material passes, so it is not uniform. The ribbon cavity should be narrowed.
以上的内容就是济南注塑模具加工厂家为大家介绍的相关内容了,如果您有更多的意见和想法,欢迎在线留言:http://www.sdlqmj.com我们后续会有专人与您对接!
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