What is the gas-assisted injection molding process?

What is the gas-assisted injection molding process?

Gas-assisted injection molding is a special injection molding technology, whose main purpose is to improve the appearance quality, dimensional accuracy and mechanical properties of plastic products by injecting high pressure gas or low pressure vacuum.

First, several specific roles of gas-assisted injection molding process:

Removing bubbles: In the injection molding process, bubbles will be generated in plastic products for various reasons, and the use of gas-assisted injection molding technology can exhaust the air from the mold to avoid the generation of bubbles.

Improve dimensional stability: The gas-assisted injection molding process can form a balanced air flow inside the mold, so that the plastic material is evenly distributed, and improve the dimensional stability of the molded product.

Improve the surface finish: the process can eliminate the burrs and marks produced by extrusion, make the surface of the product more flat and smooth, improve the beauty.

Reduce the loosening rate: By increasing the air pressure or reducing the vacuum degree, the contact force between the plastic and the mold can be improved, thereby reducing the loosening rate.

Optimize the detailed structure: Gas-assisted injection molding can also optimize the detailed structure of the product by changing the direction and flow of the air flow, and improve the mechanical properties and use effects of the product.

Second, what is the gas-assisted injection molding process flow chart:

In summary, gas-assisted injection molding technology is an advanced plastic processing technology, which can greatly improve the molding quality and appearance of injection products, improve the performance and competitiveness of products.