Material Drying
4 조회수
LCP Blister and Surface Bulge Defects
문제 현상
【Problem Phenomenon】Blister-like bulges appear on the surface of LCP thin-wall electronic parts, more obvious after high temperature
원인 분석
Gas or volatiles under the surface layer expand when heated and push up the skin to form blisters; Misumi literature lists blister as a typical LCP defect and associates it with gas generated by insufficient drying and stagnation degradation
해결 방법
Strengthen drying and shorten the exposure time after drying; lower the melt temperature upper limit and residence time; increase injection speed so that gas is discharged with filling instead of staying under the skin; after adjustment, take continuous samples to verify the effect, and resume mass production only after confirming stability
핵심 요약
The essence of blister is subcutaneous gas expanding when heated; control both drying and residence time; after confirming effectiveness, solidify 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!