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注塑模具的浇口设计应该注意些什么?

来源:http://www.sdlqmj.com 日期:2019-07-25 发布人:admin 浏览次数:
浇口的设计和塑件的尺寸、形状模具结构,注射工艺条件及塑件性能等因素有关。但就基本作用来说,浇口截面要小,长度要短,因为只有这样才能满足增大流料速度,快速冷却封闭,便于塑件分离。下面济南注塑模具厂家就给大家详细介绍一下注塑模具浇口设计的要点!
The design of gate is related to the size, shape, mould structure, injection process conditions and properties of plastic parts. But in terms of basic function, the gate section should be small and the length should be short, because only in this way can the flow rate be increased, the rapid cooling and closure be satisfied, and the plastic parts can be separated easily. The following Jinan injection mold manufacturers will give you a detailed introduction of the main points of injection mold gate design!
1.浇口不宜使熔料直冲入型腔,否则会产生漩流,在塑件上留下旋形的痕迹,特别是窄的浇口更容易出现这种缺陷;
1. The gate should not make the melt rush directly into the cavity, otherwise it will produce whirlpool, leaving a spiral trace on the plastic parts, especially the narrow gate, which is more prone to this defect;
2.带有细长的型芯的注塑模的浇口位置,应当离成型芯较远,不使成型芯受料流冲而变形;
2. The gate position of injection moulds with slender cores should be far away from the core, so that the core will not be deformed by material flow.
3.浇口位置的选择,应使塑料充模流程短,以减少压力损失;
3. The selection of gate position should shorten the filling process of plastics in order to reduce pressure loss.
4.浇口位置的选择,应防止在塑料表面上产生拼缝线,特别实在圆环或是圆筒形的塑件中,应在浇口的面的熔料浇合处加开冷料井;
4. The choice of gate location should prevent the formation of joint lines on the plastic surface, especially in circular or cylindrical plastic parts, cold material wells should be added at the melting joint of gate surface.
5.浇口位置的选择,应有利于排除型腔中的空气;
5. The choice of gate position should be conducive to eliminating air in the cavity.
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6.浇口开设在塑件断面较厚的部位,使熔料从厚料断面流入薄断面保证充模完全;
6. The gate is set at the thicker section of the plastic part, which makes the melt flow from the thick section to the thin section to ensure the complete filling of the mould.
7.大型或扁平塑件成形时,为防止翘曲、变形、缺料可采用复式浇口;
7. When forming large or flat plastic parts, compound gate can be used to prevent warping, deformation and material shortage.
今天的精彩内容就暂且和大家介绍到这里了,如果大家有其他想要补充的地方,欢迎大家到济南注塑模具厂家的官网给我们留言评论:http://www.sdlqmj.com,或者直接拨打我们的咨询热线,我们将给您一个满意的答复!
Today's wonderful content will be introduced here for the time being. If you have other places to add, you are welcome to leave a message and comment on the official website of Jinan injection mould manufacturer: http://www.sdlqmj.com, or call our hotline directly. We will give you a satisfactory answer!

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