What Is Precision Injection Molding

Injection molding is a common way of using plastic raw materials. However, precision injection molding is the pursuit of creating high-precision injection molding products. Precision injection molding has two indicators: one is equipment accuracy, and the other is mold error. Precision injection molding has the most sophisticated injection molding related products.

The injection molding process is the process of transforming plastic from solid (powder or pellets) to liquid (melt) to solid (product). From the pellets to the melt, and then from the melt to the product, there are temperature fields, stress fields, flow fields, and density fields in the middle. Under the combined action of these fields, different plastics have different polymer structures. and rheological properties.

In precision injection molding, the mold is one of the keys to obtain precision plastic products that meet the quality requirements. The mold used for precision injection molding should meet the requirements of product size, precision and shape. But even if the precision and size of the mold are consistent, the actual size of the molded plastic product will be inconsistent due to the difference in shrinkage. Therefore, it is very important to effectively control the shrinkage rate of plastic products in precision injection molding technology.