Material Drying
4 조회수
TPU Hardness-Graded Drying
문제 현상
Soft TPU particles stick together and agglomerate after drying at 105°C
원인 분석
TPU drying temperature is graded by hardness: soft material below Shore A85 at 90°C, hard material can be 105°C; soft material dried at high temperature will stick together; when troubleshooting on site, verify item by item according to this mechanism to avoid blindly adjusting the machine based only on experience
해결 방법
Soft TPU dried at 80-90°C × 4 hours; hard at 95-105°C × 3 hours; follow the supplier's grade guidelines; after adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability
핵심 요약
TPU drying temperature is graded by hardness, with low temperature for soft material; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a troubleshooting reference for similar problems in the future
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