Why does “shrinkage” occur during the production and processing of plastic products?

First, understand what “shrinkage” is. Shrinkage is a professional term used in the production of plastic products. It means that the surface of the plastic product shrinks significantly, causing the product to be uneven and unable to achieve the effect of the design drawing.

Why does it shrink? There are two main reasons for shrinkage, one is the material reason, and 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, etc. Due to the characteristics of the material itself, it is more likely to shrink than other harder plastic materials. The shrinkage phenomenon will be significantly reduced or eliminated after replacing the harder material with the same production process, the same production environment and the same mold. 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 from the production point of view. One is to solve it from the mold structure, try to avoid shrinkage caused by the structure, and the other is to solve it during the production process. Solve the problem of shrinkage by adjusting temperature and duration, adjusting production efficiency, etc.

Shrinkage is both a production phenomenon and a technical problem. It will inevitably occur during production, but it can be alleviated by adjusting materials and production processes, and can ensure the effect of the final product. Wuyi Yashan Plastic Production Co., Ltd. helps customers produce more than a hundred plastic products every year. Through years of experience accumulation and a strong technical team, our company can solve various plastic material production technologies for customers. problem. As of the end of 2020, our company has developed and produced plastic products including plastic water cups, plastic lunch boxes, plastic storage buckets, plastic soap boxes, plastic toys, plastic piggy banks and other products. We welcome global plastic daily necessities buyers to visit our factory. We have prepared sufficient samples for the global market. Welcome to contact our business specialists. We are willing to serve you wholeheartedly.