Processing Machinery
3 조회수
PA66 engine decorative cover
문제 현상
The engine decorative cover deforms and loses gloss after long-term high temperature
원인 분석
The cover is close to the heat source, ordinary grades lose gloss and deform from thermal aging, and failure occurs first at fixing point stress concentrations; during on-site troubleshooting, verify item by item according to this mechanism, avoiding blindly adjusting the machine based only on experience
해결 방법
Select glass fiber reinforced heat-stabilized grades; add metal bushings at fixing points; add heat insulation pads between the cover and heat source; after adjustment, take continuous samples to verify the effect, confirm stability before resuming mass production
핵심 요약
Engine covers require heat-stabilized grades plus heat insulation design; after confirming effectiveness, fix the parameters and practices into the work instructions to prevent recurrence; include this case in the defect archive as a troubleshooting reference for subsequent similar problems
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