Extrusion & Post
10 조회수
DSTDP vacuum vent section material overflow
문제 현상
DSTDP extrusion vacuum vent section material overflow, vent hole clogged
원인 분석
DSTDP melt viscosity low, overflowing at the vacuum vent section; vacuum vent section temperature on the high side, viscosity even lower, aggravating overflow; vent hole design improper
해결 방법
1) Lower vacuum vent section temperature 5-10°C to increase viscosity; 2) add baffle above the vent hole to prevent overflow; 3) increase screw speed to accelerate conveying and reduce residence
핵심 요약
Material overflow is caused by low melt viscosity; temperature reduction and baffle are key
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