Gas assist molding（GIM）means injection high pressure inert nitrogen when plastic material filled at appropriate time（90%~99%）,gas promote melting plastic continue to full cavity, is a injection molding technology using gas pressure maintaining instead of plastic pressure maintaining process.
Gas assist molding Advantage:
1. Reduce product the residual stress, make the product deformation;
2. Resolve and eliminate the product surface shrink mark problem, used in thickness changes greatly product;
3. Reduce injection molding machine clamping force, reduce the loss of the machine;
4. Improve injection molding machine lifetime;
5. Saving plastic raw material, saving rate can amount to 30 percent;
6. Shorten product molding cycle time and improve production efficiency
7. Reduce the mold cavity pressure, reduce mold loss, improve mold lifetime;
8. Regard some plastic parts, mold can use of aluminum alloy material
9. Simplify product complex design
Link to this article：Gas assist molding
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