Processing Machinery
3 조회수
PA66 intake manifold
문제 현상
The intake manifold shows weld line leakage during engine bench testing
원인 분석
The manifold vibration weld is subject to pulsating pressure and thermal cycling, and insufficient weld design strength or improper welding parameters form weak areas; during on-site troubleshooting, verify item by item according to this mechanism, avoiding blindly adjusting the machine based only on experience
해결 방법
Select vibration welding grade glass fiber reinforced grades; design weld rib width according to burst pressure; bench verification according to pulsating cycles; after adjustment, take continuous samples to verify the effect, confirm stability before resuming mass production
핵심 요약
Intake manifold welds are specially verified according to pulsating burst working conditions; 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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