Processing Machinery
3 조회수
PA6 Nozzle Temperature Control
문제 현상
During production, the nozzle frequently drools; after lowering the nozzle temperature, cold material blockage occurs again
원인 분석
When the nozzle temperature is higher than the melt temperature, the melt viscosity is low and drooling occurs; when too low, the material at the nozzle outlet solidifies forming cold material; both situations are improper matching of nozzle temperature and melt temperature
해결 방법
Set the nozzle temperature consistent with the melt temperature or slightly lower by 5-10°C, combined with an anti-drool nozzle or screw decompression suck-back; drooling and blockage cannot be solved by temperature adjustment alone, and structural anti-drooling is more reliable
핵심 요약
Nozzle temperature must be set in coordination with the melt temperature, and only combined with suck-back can both drooling and blockage be addressed; after confirming effectiveness, fix the parameters and practices into the work instructions to prevent recurrence
이 정보가 도움이 되었나요?
0 명이 도움이 되었다고 합니다
의견 주셔서 감사합니다!