Molding Process
6 مشاهدة
Color change at product weld lines
ظاهرة المشكلة
The color of the weld line area is inconsistent with the surroundings, with obvious color difference
تحليل الأسباب
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
الحل
Reduce colorant addition amount; optimize gate position to avoid weld lines on visible surfaces; optimize the temperature field to reduce overheating
الخلاصة الأساسية
Weld line color change is especially obvious in high-gloss products
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