Molds & Tooling
7 조회수
ABS material changeover cleaning
문제 현상
[Problem phenomenon] Black specks and mixed colors after ABS material or color change, incomplete cleaning
원인 분석
Material and color changes must thoroughly clean the barrel and hot runner; ABS can be displaced with PS or special purging compound; dark to light color change requires doubled cleaning; during on-site troubleshooting, verify item by item according to this mechanism, avoiding blind machine adjustment based solely on experience
해결 방법
Use PS or purging compound for thorough displacement during color change; double for dark to light; clean the hot runner synchronously; after adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability; change only one variable at a time and record parameter changes to facilitate locating effective measures
핵심 요약
ABS material changeover thoroughly cleaned, dark to light doubled; 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 subsequent similar problems
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