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双色模具加工时产品凹陷是什么原因

来源:http://www.sdlqmj.com 日期:2019-01-03 发布人:admin 浏览次数:
双色模具加工时产品凹陷是什么原因
What is the cause of product depression in two-color die processing
双色模具加工呈现外表凹陷根本缘由是由于从塑料产品的视角看,当塑料冷却和膨胀时,补缩缺乏会招致 制品表面面呈现凹陷或外部呈现空穴。凹陷呈现的地位不同,缺陷的缘由及处理办法也会有所不同。
The basic reason for the appearance depression of two-color die processing is that from the perspective of plastic products, when the plastic is cooled and expanded, the lack of feeding will cause the surface depression or external cavity of the product. Depression presents different status, the causes of defects and treatment methods will also be different.
1.当凹陷呈现在厚壁制品的初冷却的地位,或离浇口远处的地位时,通常是由于典型的厚壁处和离浇口远处的外表凹陷或空穴,是由于无效黏度添加,压力损失加大,招致型腔压力缺乏,所惹起补缩压力缺乏。
1. When the depression appears in the initial cooling status of the thick-walled products or in the position far from the gate, it is usually due to the typical surface depression or cavity at the thick wall and far from the gate. It is due to the addition of invalid viscosity, the increase of pressure loss, the lack of cavity pressure and the lack of feeding pressure.
处理办法:降低补缩压力、放慢补缩速率
Solutions: Reducing the Feeding Pressure and Slowing down the Feeding Rate
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2.当离浇口很近的地位呈现外表凹陷或空穴,是由于凹陷呈现在浇口左近,通常是由于缺乏浇口解冻。影响浇口解冻有能够是由于无效黏度降低惹起的;少数状况下,由于塑料温度添加招致浇口没有解冻;模具温度太高也会影响浇口解冻。
2. When the position close to the gate appears as an external depression or cavity, it is because the depression appears near the gate, usually due to the lack of gate thawing. The influence of gate thawing can be caused by the decrease of invalid viscosity; in a few cases, the gate does not thaw due to the addition of plastic temperature; too high die temperature will also affect gate thawing.
处理办法:经过调整模具温度、塑料温度、添加保压工夫来确保浇口解冻。
Processing method: By adjusting the mould temperature, plastic temperature and adding pressure-holding time to ensure that the gate thaws.
3.需求留意的是,空穴与气泡容易混杂。空穴有时被曲解爲气泡。气泡是有气体困在外面,空穴外面是真空的。
3. It should be noted that voids and bubbles are easy to mix. Voids are sometimes misinterpreted as bubbles. Bubbles are trapped by gas and vacuums are outside.
综上所述有济南立强模具有限公司提供,想了解更多山东模具制造厂家知识,欢迎关注我们的网站:http://www.sdlqmj.com谢谢支持!
In summary, all the above-mentioned Jinan Liqiang Mould Co., Ltd. provides, want to know more about Shandong mould manufacturers, welcome to pay attention to our website: http://www.sdlqmj.com, thank you for your support!

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