Injection Molding
5 조회수
CEF injection flow length ratio insufficient
문제 현상
The CEF injection flow length ratio is only 80-100, lower than 150, and thin-walled products cannot be filled
원인 분석
The CEF melt viscosity is high and the flow distance is short; the injection temperature is low; the injection pressure is insufficient; the mold runner resistance is large
해결 방법
1) Increase the injection temperature to 160-220°C; 2) Increase the injection pressure to 80-100MPa; 3) Enlarge the 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 the high viscosity of CEF; high temperature, high pressure and large gate are the key
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