ulfml7lcuhjf7j 发表于 2023-1-17 07:56:38

塑胶模具注塑原理及注塑缺陷汇总与分析

注塑机工作原理，可以想像成注射器的工作原理相通。

https://p3-sign.toutiaoimg.com/pgc-image/dfbf18ac2720476790f921d33589df20~tplv-tt-large.image?x-expires=1989274924&x-signature=eSiuuCAXKzXwx5MMoeIFl4%2Fdlp4%3D

模具在注塑机上面的生产周期顺序，按照上面的顺序重复做就是量产。

https://p3-sign.toutiaoimg.com/pgc-image/7af6563cd55a49f78623f6d28932622b~tplv-tt-large.image?x-expires=1989274924&x-signature=N4mg371rjwhuI7fE9nhbyYLRAYg%3D

注塑机螺杆工作原理

https://p3-sign.toutiaoimg.com/pgc-image/daade012d5274917a1aada1136f4ccfa~tplv-tt-large.image?x-expires=1989274924&x-signature=EmPI8WkOk18wY1OTHbP6vF9OAKE%3D

塑胶材料在螺杆里面塑化的温度变化，正常情况下，材料不能在螺杆里面停留15分钟以上，如果超过15分钟的话，材料的特性将会雾化，所以在设计是需要结合产品的大小选择合适的机台。

https://p3-sign.toutiaoimg.com/pgc-image/be0b6768e68b4da792f4e2c806a73ee8~tplv-tt-large.image?x-expires=1989274924&x-signature=XlaBBYgS%2B5OtEQITNugHGX%2F1jSA%3D


https://p3-sign.toutiaoimg.com/pgc-image/c8c761b8bbf143f78cf4698c67bc67b8~tplv-tt-large.image?x-expires=1989274924&x-signature=Up2CjEqUob%2BynlKgZvnoORtVCh4%3D

缺胶：先确认产品局部是否太薄所影响
再确认进胶口尺寸及位置是否合理、
模具上是否存在困气

https://p3-sign.toutiaoimg.com/pgc-image/e5b86a864bbb42d88c96581a84e8b9cf~tplv-tt-large.image?x-expires=1989274924&x-signature=KSCLPv9YpLwabQ8KeKBgmhftii4%3D


https://p3-sign.toutiaoimg.com/pgc-image/a3cb9f81baf6487ab95ace0939bba61f~tplv-tt-large.image?x-expires=1989274924&x-signature=%2FPQTKsmmNavXu%2FlnssvHMRpIh50%3D

产品毛边：
首先检查注塑压力是否太大影响
模具上靠破面是否到位、以及模具上局部强度不够引起的变形所造成的毛边。



https://p3-sign.toutiaoimg.com/pgc-image/e6bb4231c03544ffa09c7fd1ad34f3e9~tplv-tt-large.image?x-expires=1989274924&x-signature=zsd9YKSlPH7mts%2FEEVbgFt4k6YM%3D


https://p3-sign.toutiaoimg.com/pgc-image/8b102099e2b44aca94f93f399410deee~tplv-tt-large.image?x-expires=1989274924&x-signature=dW4zzOFIKXrD4g38w1MElC6kOOg%3D




https://p3-sign.toutiaoimg.com/pgc-image/baa7d8e2c71d4c2181e066f401756de1~tplv-tt-large.image?x-expires=1989274924&x-signature=j2yYixzo7CSAKl%2B7ba8GeTDUToo%3D

产品外观存在缩痕：
首先确认是否产品存在肉厚不均所造成的、
再确认调机增长保压压力来调整、



https://p3-sign.toutiaoimg.com/pgc-image/39edab37debd45b8bbaf2da781380409~tplv-tt-large.image?x-expires=1989274924&x-signature=iO%2BYGmslKNIiC87KfHHnTudESZ0%3D


https://p3-sign.toutiaoimg.com/pgc-image/e6d01afedb4446c49f7d3167e37b3654~tplv-tt-large.image?x-expires=1989274924&x-signature=Cbw8mkWMqkDTZSqeCyycEcm8faY%3D




https://p3-sign.toutiaoimg.com/pgc-image/9f10236043054f75846890c7165db9d3~tplv-tt-large.image?x-expires=1989274924&x-signature=1RfpM07eSz7tgKt10MVpduuW64g%3D

产品前期设计不合理造成的缩痕，调机是无法改善，需要在产品结构上进行优化才能彻底解决。

https://p3-sign.toutiaoimg.com/pgc-image/ec5c3095216d4ee1b4b1b62710267299~tplv-tt-large.image?x-expires=1989274924&x-signature=yP72ao6ugDTaS5jBtWnvkqECTnI%3D

气泡：特别是透明件，表现最为明显。



https://p3-sign.toutiaoimg.com/pgc-image/a4d2d7a2d02148e88086871858ee284b~tplv-tt-large.image?x-expires=1989274924&x-signature=T%2BNyn2E9o%2F3GK9eiKVWIEpsBcJ4%3D


https://p3-sign.toutiaoimg.com/pgc-image/82c19a09d49645b8a4f530a9270fd058~tplv-tt-large.image?x-expires=1989274924&x-signature=LdT2cMHbkB5Ey9Moto%2FZxuLW%2Fxs%3D




https://p3-sign.toutiaoimg.com/pgc-image/f985605779bd482d9f73932af995d4ad~tplv-tt-large.image?x-expires=1989274924&x-signature=VpSX6AOxQLbtv6z%2FoFekjeBdimo%3D




https://p3-sign.toutiaoimg.com/pgc-image/9ec02995eeb44e8bb2f5fe4325172362~tplv-tt-large.image?x-expires=1989274924&x-signature=%2B%2BPTYB6ThZ88CFqcmOtNnu%2FxjP4%3D

ulkkopxrkwfgny 发表于 2023-1-17 07:57:06

转发了

谢佳 发表于 2023-1-17 07:57:43

转发了

王晶 发表于 2023-1-17 07:58:29

师傅：顶针热应力㡾怎么解决？

ugimssf71yimfg 发表于 2023-1-17 07:58:57

转发了

ufs11kz184wuwt 发表于 2023-1-17 07:59:25

转发了

uz70p88s80zbsd 发表于 2023-1-17 08:00:00

转发了

ubbe6b6pbk6jay 发表于 2023-1-17 08:00:43

注塑原理与缺陷分析，入行新手福音

unb8mnoq1bbpq8 发表于 2023-1-17 08:01:18

转发了

安琪教练 发表于 2023-1-17 08:01:36

转发了
页: [1] 2
查看完整版本: 塑胶模具注塑原理及注塑缺陷汇总与分析