Injection Molding
11 조회수
Back Pressure Setting Problem in PBT '2079851475616104452
문제 현상
Too low back pressure causes poor plasticization of the material with unmelted particles, and too high back pressure generates shear heat degradation.
원인 분석
The back pressure is set improperly, and the back pressure is not set in coordination with the barrel temperature and screw speed.
해결 방법
Set the back pressure at 0.3-1.0MPa; optimize according to the plasticization quality and melt temperature.
핵심 요약
PBT back pressure needs to balance plasticization and degradation risk.
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