Molds & Tooling
4 조회수
POM mold fouling deposition
문제 현상
White misty deposits gradually form on the mold cavity surface, the product surface gloss decreases accordingly, and frequent mold wiping is required.
원인 분석
Low-molecular substances and additives in POM precipitate and deposit on the mold surface, and precipitation accelerates when the processing temperature is high; condensation of decomposition gas during shutdown also aggravates mold fouling.; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based only on experience
해결 방법
①Control the melt temperature not too high; ②regularly wipe the mold with a special cleaning agent; ③shorten shutdown heat preservation time; ④evaluate switching to a low-precipitation grade.; after adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability
핵심 요약
Mold fouling is a typical mold contamination in POM processing; combine temperature control with regular cleaning, and reduce precipitates at the material grade level when necessary.; 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!