Production & Quality
7 조회수
PBT Sprue Material Recycling
문제 현상
After recycling flame-retardant material or glass fiber PBT sprue material, product performance declines and black specks increase
원인 분석
PBT sprue material performance declines after thermal history; the sprue material of flame-retardant material and glass fiber material is more sensitive to degradation and should not be recycled; degradation products introduced by recycling form black specks
해결 방법
①Do not recycle sprue material of flame-retardant material and glass fiber material; ②Recycle pure material sprue material in a limited proportion; ③Fully dry the recycled material before use; after adjustment, take samples continuously to verify the effect, and resume mass production only after confirming stability
핵심 요약
PBT sprue material recycling is graded by grade; the ban on recycling flame-retardant and glass fiber material is a clear discipline; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence
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