As a part of our daily lives, the application of plastic products has become increasingly widespread, and there are also more and more manufacturers engaged in the production and processing of plastic products. Injection molding is a type of plastic processing technology that plays a significant role in our daily lives. However, products processed through injection molding can also have defects. Speaking of this, injection molding manufacturers will introduce the reasons for this situation.

In actual production work, not all products can be qualified, and defective products must exist. So what are the reasons for defects in the injection molding process? Firstly, the reason for insufficient filling of the products.

There are many reasons for insufficient filling:

1. The exhaust of the mold cavity is not smooth, the pouring system is blocked, the injection time is short, and the fluidity of the raw materials is too poor, resulting in insufficient filling;

2. Insufficient filling caused by low temperature of the material barrel, nozzle, and processing machine.

3. Caused by insufficient number of runners or gates and improper positioning. Secondly, there is edge overflow in the product, which is caused by excessive filling and excessive fluidity of the raw materials. Afterwards, there are bubbles inside the product, which is caused by poor drying of the plastic, so prior inspection is required during processing.