Processing Machinery
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EVA Hot Melt Adhesive Carbonization and Skinning
Problembeschreibung
The adhesive surface in the glue tank skins and carbonizes, blocking the nozzle.
Ursachenanalyse
The adhesive is exposed to high temperature for a long time and oxidizes and carbonizes; when the glue tank level is low, the exposed area increases and skinning accelerates.; During on-site troubleshooting, verify item by item according to this mechanism to avoid blindly adjusting the machine based only on experience
Lösung
①Keep the glue tank at an appropriate level; ②lower the holding temperature when not in use; ③regularly clean the glue tank; ④avoid repeated heating and mixing of new and old adhesive.; After adjustment, continuously sample to verify the effect, and resume mass production after confirming stability
Wichtigste Erkenntnis
Carbonization and skinning is a cumulative problem of thermal management; liquid level and holding temperature management can prevent it.; After confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
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