Injection Molding
5 조회수
Unstable Weight of EVOH Injection Molded Products
문제 현상
EVOH injection molded product weight fluctuates ±3%, exceeding the ±1% precision requirement
원인 분석
Shot volume unstable, screw back position inconsistent; holding time fluctuation; feeding amount unstable; EVOH density variation ±2%
해결 방법
1) Displacement sensor to precisely control screw back position; 2) Stabilize holding time and pressure; 3) Precisely set V/P switchover point; 4) Inspect density differences between batches
핵심 요약
Product weight stability depends on shot volume precision and holding consistency
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