Extrusion & Post
4 조회수
LDPE Film Thickness Deviation (MD)
문제 현상
Longitudinal thickness fluctuates periodically, and the thickness measurement curve undulates.
원인 분석
Extrusion output pulsation (unstable feeding, screw wear) or haul-off speed fluctuation.
해결 방법
①Stabilize feeding; ②measure screw clearance; ③stabilize haul-off; ④closed-loop thickness control.
핵심 요약
MD fluctuation is traced to extrusion and haul-off.
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