Injection Molding
5 조회수
Insufficient flow length ratio in PVA '2079851475616104452
문제 현상
PVA '2079851475616104452 flow length ratio only 80-100, below 150, thin-walled products cannot be filled
원인 분석
PVA melt viscosity high, flow distance short; injection temperature too low; injection pressure insufficient; mold runner resistance large
해결 방법
1) Increase injection temperature to 140-200°C; 2) Increase injection pressure to 80-100MPa; 3) Enlarge runner and gate sizes to reduce resistance; 4) Add 0.3-0.5wt% flow aid to reduce viscosity
핵심 요약
Insufficient flow length ratio is caused by PVA high viscosity; high temperature, high pressure and large gates are key
이 정보가 도움이 되었나요?
0 명이 도움이 되었다고 합니다
의견 주셔서 감사합니다!