Processing Machinery
4 조회수
EVA hot melt adhesive open time
문제 현상
The bonding operation rhythm does not match the adhesive.
원인 분석
Adhesives with short open time require fast bonding; if the operation tempo is slow, the adhesive has already cooled and failed.; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based on experience alone
해결 방법
①Select an adhesive type with an open time matching the tempo; ②optimize the operation process; ③preheat the substrate to extend the operable time; ④train the operation rhythm.; after adjustment, take consecutive samples to verify the effect, and resume mass production only after confirming stability
핵심 요약
Open time is a key parameter in hot melt adhesive selection; only matching the production tempo can bring out the bonding performance.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
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