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What's the matter with the lack of glue in plastic injection molding

by:Vowin Rapid Prototyping     2023-02-18
What's the matter with plastic overmolding? Lack of plastic in injection molded parts is a relatively common phenomenon in the process of overmolding. Shanghai Mulan Vertical Overmolding Injection Mold Factory Compared with material flakes and black spots, the lack of glue will not only affect the appearance, but also affect the normal function of the injection molded parts. So, in
During the plastic injection molding process, special attention is required. However, overmolding is related to many factors. What happened to the lack of glue in plastic injection molding? What factors caused it, and how to solve it?

Shanghai Mulan Precision Products Co., Ltd. has served Japanese brands for more than 10 years. It has accumulated experience in product development, mass production management, and quality management. It has given detailed answers to the problem of plastic shortage in overmolding. The main reasons for the lack of glue in the process of overmolding injection molding are:

1. In terms of mold structure, there may be problems such as poor exhaust, too thin glue position, and abnormal mold temperature;

2. In terms of injection molded parts, there may be problems such as screw lagging, abnormal temperature, and nozzle blockage;

3. In terms of plastic injection molding process, there are problems in the setting of injection molding processing parameters.

What’s the matter with plastic overmolding? In the process of plastic overmolding, we need to conduct a technical review with the overmolding engineer of Shanghai Mulan Vertical Overmolding Injection Mold Factory to analyze specific problems. If you encounter other technical problems in the process of overmolding, please contact us by phone or consult us online.
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