Material Drying
4 조회수
PVDF Appearance Part Flow Mark and Gloss Unevenness
문제 현상
【Problem Phenomenon】PVDF high appearance requirement parts have surface flow marks and gloss differences, failing pretreatment for electroplating and coating
원인 분석
Melt temperature fluctuation, unstable injection pressure and uneven mold temperature cause surface micro-replication differences; when silver streaks and flow marks coexist, it mostly points to drying and temperature stability; during on-site troubleshooting, verify item by item according to this mechanism, avoiding blind machine adjustment based solely on experience
해결 방법
First check the two items of drying and melt temperature stability; homogenize and appropriately raise mold temperature to improve surface replication; smooth the injection pressure curve; if necessary, use mold surface texture to cover slight flow marks
핵심 요약
For appearance parts, stabilize drying and temperature first; gloss differences are mostly stability problems; 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
이 정보가 도움이 되었나요?
0 명이 도움이 되었다고 합니다
의견 주셔서 감사합니다!