Injection Molding
11 조회수
Nozzle drooling in PET '2079851475616104452
문제 현상
Melt drools from the nozzle of the PET '2079851475616104452 machine during mold opening and material charging, affecting the next shot.
원인 분석
Nozzle temperature is too high and melt viscosity is too low; nozzle hole diameter is on the large side; back pressure is set improperly; PET melt thermal stability is insufficient.
해결 방법
Reduce nozzle temperature to 260-270°C; use a needle valve shut-off nozzle; reduce nozzle hole diameter; use an anti-drooling program.
핵심 요약
PET nozzle drooling affects production stability.
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