How should the plastic mold venting system be designed? Mold design has always been an indispensable part of the machinery industry. Plastic molds are tools used in the plastics processing industry to match plastic molding machines, giving plastic products a complete configuration and precise dimensions. Due to the variety of plastics and processing methods, the structure of plastic molding machin...

There will be some problems like insufficient filling, compressed air burning, high internal stress inside parts, flowing mark and welding line on surface when testing molds or production. To solve or avoid these problems, we will adjust the injection moulding process first, and also consider the mould gate. When it is no problem for the injection moulding process and gate, the main way to solve t...

Splay mark is a normal problem during manufacture plastic products. There are a few reason cause this problem: 1. The material contains water, drying time is insufficient. 2. Weld back pressure is too small or no back pressure. 3. Venting is not so good. We need keep to drying the material, Increasing back pressure, Improving the mould venting.

Today we are going to discuss several venting methods for the plastic injection mold: 1. Gate venting; 2. Parting surface venting; 3. Inserts and inserts pin venting; For inserts joint cavities or cores, they can be vented by their split gaps. 4. Ejector pin and ejector sleeve venting; The ejector pin and the sleeve are vented with the matching gap of the core. 5. Porcerax venting; Porcerax is a m...