Molding Process
4 조회수
Color change at product weld lines
문제 현상
The color of the weld line area is inconsistent with the surroundings, with obvious color difference
원인 분석
Colorants enrich or are diluted at the weld interface; molecular orientation at the weld differs from the surroundings, causing refraction differences; local overheating causes slight degradation
해결 방법
Reduce colorant addition amount; optimize gate position to avoid weld lines on visible surfaces; optimize the temperature field to reduce overheating
핵심 요약
Weld line color change is especially obvious in high-gloss products
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