Injection Molding
4 조회수
ASA poor venting trapped air
문제 현상
ASA high-speed filling shows burnt marks and insufficient filling at product end; after reducing speed, surface quality worsens again, falling into a dilemma.
원인 분석
ASA recommends high injection speed for the best surface, but when mold venting capacity is insufficient, high-speed filling compresses air with nowhere to escape; burnt and short shot appear simultaneously when venting is poor.
해결 방법
①Strengthen mold venting according to high-speed process requirements: deepen and densify vent grooves; ②focus venting on end convergence area; ③regularly clean oil contamination in vent grooves; ④vacuum venting to cooperate with high-speed process if necessary.
핵심 요약
ASA high-speed process and venting capacity are bound conditions; solve venting first, then enjoy the surface and weld line benefits brought by high speed; venting design is checked according to high-speed filling.
이 정보가 도움이 되었나요?
0 명이 도움이 되었다고 합니다
의견 주셔서 감사합니다!