Injection Molding
3 조회수
Gas-assisted injection is used to reduce shrinkage and warpage but parameters are set improperly
문제 현상
Gas-assisted injection is used to reduce shrinkage and warpage but parameters are set improperly
원인 분석
Improper gas injection timing, too early gas breakthrough or too late gas channel not formed
Improper gas pressure setting, unstable gas channel dimensions
Unreasonable gas channel design, gas cannot flow along the predetermined path
Gas overflow, bubble marks appear on the product surface
Cellulose acetate butyrate melt viscosity affects gas penetration depth
해결 방법
Gas injection timing when the melt is 70-90% filled
Reasonably set gas pressure 5-15MPa
Reasonably design the gas channel path
Prevent gas overflow, sealing design
Adjust gas parameters according to cellulose acetate butyrate viscosity
핵심 요약
Gas assist requires precise timing and pressure control
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