Injection Molding
3 조회수
CEF injection flow marks
문제 현상
Radial flow marks centered on the gate appear on the surface of the CEF injection molded part
원인 분석
The injection speed is too fast, causing the melt front to be unstable; the mold temperature is too low <30°C and the front cools rapidly to form marks
해결 방법
1) Adopt multi-stage injection speed slow-fast-slow to control the stability of the front; 2) Increase the mold temperature to 40-50°C to delay the cooling of the front; 3) Stabilize the injection pressure to avoid fluctuations; 4) Increase the gate area to reduce sudden pressure changes at the gate
핵심 요약
Flow marks are caused by unstable injection front and rapid cooling; multi-stage injection and high mold temperature are the key
이 정보가 도움이 되었나요?
0 명이 도움이 되었다고 합니다
의견 주셔서 감사합니다!