Material Drying
4 조회수
Drying Management for PESU High Water Absorption
문제 현상
【Problem Phenomenon】PESU products have dimensional and strength problems, and tracing found that drying was underestimated
원인 분석
PESU's saturated water absorption of about 2.1% is relatively high among sulfones, and it must be thoroughly dried before molding, otherwise dimensions and strength are affected; the impression of low moisture absorption led to insufficient drying investment
해결 방법
Execute PESU drying according to official high-grade parameters and actually measure moisture content; sealed management after drying with time-limited use; include moisture records of dimension-sensitive parts in traceability; after adjustment, continuously sample to verify the effect, confirm stability before resuming mass production
핵심 요약
PESU's 2.1% water absorption cannot be underestimated, thorough drying is the prerequisite for dimensions and strength; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
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