Why does "shrinkage" occur in the production and processing of plastic products? What is "shrinking"?

First understand what "shrink" is.

Shrinkage is a professional term in the production of plastic products, which means that the surface of the plastic product has obvious shrinkage, which causes the product to be uneven and cannot achieve the effect of the design drawing.

Why does it shrink?

There are two main reasons for the shrinkage, one is the material reason, the other is the production reason. The softer the plastic material, the more likely it is to shrink during production and processing, such as PP. Compared with other harder plastic materials, the material itself is more prone to shrinkage.

The same production process, the same production environment and the same mold, the shrinkage phenomenon will be significantly reduced or disappear after replacing harder materials. For example, switch to ABS materials.

If the final product has clear requirements for materials, how to solve the shrinkage phenomenon? This needs to be solved in production.

One is to solve from the mold structure, try to avoid shrinkage caused by the structure, and the other is to solve it in production. Solve the shrinkage problem by adjusting the temperature and time to adjust the production efficiency.

Shrinkage is not only a production phenomenon but also a technical problem. It will inevitably occur in production, but it can be reduced by adjusting materials and production processes, and can ensure the effect of the final product. Dongguan Zhanyi Commodity Technology Co., Ltd. helps customers produce more than one hundred types of plastic products every year. Through years of experience accumulation and a strong technical team, our company can solve a variety of plastic material production technologies for customers problem.

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