Injection Molding
3 조회수
EEA injection mold venting burnt
문제 현상
Insufficient venting in EEA injection mold, air in the cavity compressed and heated causing local burnt
원인 분석
Insufficient vent groove area or improper position; injection speed too fast, air having no time to escape; air compressed to high temperature >200°C causing oxidative burnt
해결 방법
1) Increase vent groove area, depth 0.02-0.03mm, width 5-10mm; 2) Set vent grooves in the last-fill area of the melt; 3) Reduce injection speed to reduce air compression; 4) Multi-stage injection with slow advancement for venting
핵심 요약
Burnt is caused by insufficient venting and high-speed injection compressing air; increasing venting and reducing speed is the key
이 정보가 도움이 되었나요?
0 명이 도움이 되었다고 합니다
의견 주셔서 감사합니다!