Material Drying
3 조회수
PPS Silver Streaks and Bubbles
문제 현상
Silver streaks and tiny bubbles appear on the part surface; improvement is obvious after drying but not complete
원인 분석
The main cause of PPS silver streaks and bubbles is surface moisture; residue after drying indicates a second cause: melt overheating decomposition gas, regrind contamination, or mold moisture; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based on experience alone
해결 방법
①Verify that the drying procedure is properly executed; ②Investigate melt temperature and retention; ③Check regrind cleanliness and mold water circuits; after adjustment, take continuous samples to verify the effect, and resume mass production only after confirming stability
핵심 요약
Troubleshoot PPS silver streaks along three paths: moisture, overheating, and contamination; when drying works but is incomplete, immediately turn to the latter two; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
이 정보가 도움이 되었나요?
0 명이 도움이 되었다고 합니다
의견 주셔서 감사합니다!