Material Drying 4 조회수

MP compression molded product bubbles

문제 현상

MP melamine tableware compression molded products have surface bubbles 0.5-2mm

원인 분석

preform powder contains moisture >0.5%; insufficient venting, air and volatiles in the mold cavity cannot escape

해결 방법

1) dry preform powder at 80°C for 2h to moisture <0.1%; 2) add vent grooves to the mold; 3) pre-press degassing 1-2 times to release volatiles

핵심 요약

MP compression molding bubbles are caused by moisture and poor venting; drying and venting are key

MP compression molding bubble preform powder drying vent groove pre-press degassing

이 정보가 도움이 되었나요?

0 명이 도움이 되었다고 합니다