Molds & Tooling
4 조회수
TPU flow marks
문제 현상
Corrugated flow marks appear on the product surface.
원인 분석
Unstable filling causes front temperature fluctuations; uneven mold temperature also aggravates flow marks; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based only on experience; this mechanism has been repeatedly verified by industry materials and should be confirmed first during troubleshooting
해결 방법
①optimize the injection speed profile for smooth filling; ②increase and uniformize mold temperature; ③appropriately increase melt temperature; ④enlarge the gate; after adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability
핵심 요약
TPU flow marks are improved by smooth filling and uniform mold temperature; speed profile optimization is the main means; 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!