Extrusion & Post
4 조회수
LLDPE extrusion material changeover gel
문제 현상
A large amount of gel particles appears after changing from LDPE to LLDPE.
원인 분석
Large viscosity difference between the two materials, residual material retention and stratification; incomplete cleaning.
해결 방법
①Gradient temperature cleaning; ②extend purging time; ③disassemble and clean the die head when necessary; ④record the material changeover SOP.
핵심 요약
Material changeovers with large viscosity differences require thorough purging.
이 정보가 도움이 되었나요?
0 명이 도움이 되었다고 합니다
의견 주셔서 감사합니다!