Processing Machinery
6 조회수
PC Stress Cracking by Solvents
문제 현상
[Problem Phenomenon] PC cracks after contact with solvents, with stress and solvent superimposed
원인 분석
PC is sensitive to solvents such as ketones, esters and aromatic hydrocarbons, and solvents induce cracking under internal stress (environmental stress cracking); this is the most typical PC failure; 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
Check the solvent environment; anneal high-stress parts; select chemical-resistant grades or coatings for sensitive environments; 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
For PC stress cracking, look at solvents; annealing and material selection are the two countermeasures; 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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