Molds & Tooling
7 조회수
ASA Weld Line Visible on Dark Color
문제 현상
【Problem Phenomenon】Weld lines on ASA dark-colored products are particularly obvious, affecting appearance acceptance
원인 분석
Weld lines have strong visual contrast on dark-colored products; insufficient convergence front temperature and poor venting weaken bonding and amplify color difference; Plasthub suggests raising melt temperature and speed to improve
해결 방법
Increase melt temperature and injection speed to promote convergence fusion; mold temperature at upper limit; gate layout moves weld line to non-appearance area; after adjustment, continuously sample to verify the effect, and resume mass production after confirming stability
핵심 요약
ASA dark part weld lines rely on temperature, speed plus relocation, three approaches simultaneously; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a troubleshooting reference for subsequent similar problems
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