Molding Process
7 조회수
MP surface stress whitening
문제 현상
MP product stressed regions show surface stress whitening, affecting appearance and strength
원인 분석
MP under local stress, molecular orientation causes refractive index difference, whitening; product internal stress concentration regions
해결 방법
1) reduce injection speed to reduce orientation stress; 2) annealing at 80°C/2h to release stress; 3) product design avoiding stress-concentrating sharp corners
핵심 요약
stress whitening is caused by orientation and internal stress; reducing orientation and annealing are key
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