Material Drying
8 조회수
PA66 product low welding strength
문제 현상
Ultrasonic/hot plate welding cold welds, insufficient strength.
원인 분석
Inconsistent moisture, improper parameters; PA water absorption affects welding repeatability; non-uniform moisture state is a hidden danger; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based solely on experience.
해결 방법
①Unify product moisture state (dry or condition before welding); ②optimize process parameters and do DOE verification; ③clean welding surfaces to remove release agent and oil contamination; ④verify strength after welding/assembly; ⑤standardize pre-welding treatment (drying/conditioning).
핵심 요약
PA66 welding='state unification': moisture is the chief culprit of cold welds; nylon welding must standardize the moisture state for parameters to be meaningful; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence.
이 정보가 도움이 되었나요?
0 명이 도움이 되었다고 합니다
의견 주셔서 감사합니다!