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预防注塑模具生产过程中发生变形的技巧有哪些?

来源:猪猪棋牌http://www.maramnaga.com 日期:2019-08-22 发布人:admin 浏览次数:
注塑模具在生产的过程中,稍不注意就可能发生变形,这样客户肯定是不会收货的,影响了公司的效益!下面济南注塑模具厂家的小编就给大家总结几条预防注塑模具生产过程中发生变形的技巧,希望对大家有所帮助!
In the production process of injection moulds, slight negligence may lead to deformation, so that customers will not receive goods, affecting the company's efficiency! The following Jinan injection mold manufacturer's small edition summarizes several techniques to prevent deformation in the production process of injection mold, hoping to help you!
1.模具尺寸精度
1. Die Dimension Accuracy
模具尺寸精度要适当,要根据图纸来考虑模具的设计、制作和成型过程,其中的关键是如何来保证实际得到的模具尺寸在图纸所要求的尺寸公差范围内,这也是设计人员必须要解决好的,否则会影响到模具。
Die dimension accuracy should be appropriate. The design, manufacture and forming process of the die should be considered according to the drawings. The key point is how to ensure the actual size of the die within the tolerance range required by the drawings. This is also a problem that designers must solve, otherwise it will affect the die.
2.收缩率
2. Contraction rate
即便是同一种树脂,如果成型条件不同,那么它的收缩率也会不同。精密模具成型时要求收缩变化率要小,且预计的收缩率和实际收缩率要尽可能一样,但在实际过程中,一般很难做到,一般在试模后要对模具进行修正。而为了更好的修正模具对塑胶模具凹部尺寸进行设计时,收缩率应尽量取小的数值,而凸部尺寸则是取大值。
Even if the same resin is formed under different conditions, its shrinkage will vary. Precision die forming requires a small shrinkage change rate, and the expected shrinkage rate and the actual shrinkage rate should be the same as possible, but in the actual process, it is generally difficult to do so, and the die should be corrected after the test. In order to better modify the design of the concave size of the plastic mould, the shrinkage rate should be taken as small as possible, while the convex size should be taken as large as possible.
防止产生成型变形
Preventing Forming Deformation
济南注塑模具
塑胶模具的成型变形,其引起的原因主要是收缩不均匀,模具中有内应力,因此我们可以采取的预防措施有:
The main causes of plastic mould deformation are uneven shrinkage and internal stress. Therefore, we can take preventive measures as follows:
(1)浇口数量要合适,各浇口要保持平衡;
(1) The number of gates should be appropriate and the balance of gates should be maintained.
(2)选择正确的浇口形状和位置,可以根据模具形状来看。
(2) Choosing the correct gate shape and position can be seen according to the shape of the die.
3.防止脱模产生变形
3. Prevent the deformation of demoulding
如果材料的收缩率比较小,那么要注意当成型压力高时,塑件容易留在模腔内。此外,模具设计时要在塑件不变形的情况下进行脱模,以防产生变形。
If the shrinkage of the material is relatively small, it should be noted that when the molding pressure is high, the plastic parts are easy to stay in the cavity. In addition, when designing the mould, the mould should be demoulded under the condition that the plastic parts are not deformed, in order to prevent deformation.
以上精彩内容由济南注塑模具的小编整理提供,如果您还有更多想要了解的,欢迎咨询我们官网的客服人员:http://www.maramnaga.com!我们将给您做出满意的回复!谢谢大家的支持!
The above wonderful content is provided by Jinan Injection Mold's small arrangement. If you have more to know, please consult our customer service staff on the official website: http://www.maramnaga.com! We will give you a satisfactory reply! Thank you for your support!

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