Injection Molding
6 조회수
PP Injection Multi-cavity Imbalance
문제 현상
Inter-cavity weight differences of multi-cavity PP parts exceed tolerance.
원인 분석
Unbalanced runners and cooling efficiency differences; PP is pressure-sensitive, so inter-cavity differences amplify into weight and dimensional differences.
해결 방법
①Geometric runner balancing; ②measure filling with the short shot method; ③balance water circuits; ④if necessary, independent valve gate control.
핵심 요약
For multi-cavity imbalance, first measure filling balance.
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