How to solve the demolding issue of the TPE product? (V2)

14-07-2022

TPE product

TPE plastic material is a kind of thermoplastic elastomer, the properties are similar to TPE, and now is mainly used in the over-molding project. In the molding process of TPE products, the demolding issue is always being the difficult part of the TPE project, for the reason that the material is soft, the product will be easily attached to the surface of the mold cavity, and the connection part of the gate is too small and soft to pull the product out of the cavity. In the past, we have introduced you to 4 common solutions to demolding issues, including using mold release agents, adjusting mold structure, etc. Are there other ways to improve the problem?

 

Recently, our company has finished many projects of TPE products, In the mold testing stage, we met the demolding issue as we expected, The gate position is very soft, and we used other tools to remove the product. We discussed with our customer about the function of the product, we added an undercut structure inside the product. When the moving half of the mold is pulled out, the product will be ejected from the mold by the undercut structure. Facts have proved that this method works well. You can determine whether there is enough space to add structure such as undercuts based on the structural characteristics of your projects.

 

The main reason that to solve the problem of product demolding by adding undercuts is we have a better understanding of the functional structure of the product, and the undercut position should not affect the appearance of the product, Shanghai Future Mould is a professional injection mold factory. We provide the customer with professional mold services. Through an in-depth understanding of the customer project, we will share the best modifications and adjustments to ensure superior processing performance and a good functional target. Welcome to contact us for more information.


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