Material Drying
4 조회수
PVC Drying Temperature Upper Limit
문제 현상
PVC dried above 100℃ for long time, pellets yellow and degradation advances during processing
원인 분석
PVC thermal stability poor, too high drying temperature prematurely consumes heat stabilizer, processing window narrows; during on-site troubleshooting, verify item by item according to this mechanism, avoid blindly adjusting the machine based solely on experience.
해결 방법
PVC drying temperature 75-90℃ not exceeding 95℃; time 1-2 hours sufficient; after adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability
핵심 요약
PVC drying is a low-temperature short-time route, over-temperature consumes stabilizer; 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 similar problems later
이 정보가 도움이 되었나요?
0 명이 도움이 되었다고 합니다
의견 주셔서 감사합니다!