Processing Machinery
6 조회수
PC Recycling
문제 현상
[Problem Phenomenon] Feasibility and precautions of PC recycling
원인 분석
PC is recyclable: crushed, re-dried and blended at ≤20%; multiple heat histories reduce molecular weight; regrind is prohibited for optical parts; when troubleshooting on site, verify each item according to this mechanism one by one, and avoid blindly adjusting the machine based on experience alone
해결 방법
Dry and verify regrind separately; ratio ≤20%; prohibited for optical parts; after adjustment, take samples continuously to verify the effect, and resume mass production only after confirming stability; change only one variable at a time and record parameter changes, so as to locate effective measures
핵심 요약
PC recycling is feasible, with a 20% ratio and prohibition for optical parts; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar problems in the future
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