Molds & Tooling
3 조회수
PA6 Thick-Walled Part Mold Temperature Increase
문제 현상
PA6 thick-walled products have severe surface sink marks, and improvement is limited after increasing the holding pressure
원인 분석
When the mold temperature of thick-walled parts is low, the surface layer solidifies quickly, the feeding channel for the core melt freezes prematurely, the holding pressure cannot be transmitted in, and sink marks are difficult to eliminate through holding pressure; when troubleshooting on site, verify item by item according to this mechanism, and avoid blindly adjusting the machine based only on experience
해결 방법
Raise the mold temperature of thick-walled PA6 products to 80-90°C to delay surface solidification, combined with sufficient holding pressure and time; when necessary, enlarge the gate to keep the feeding channel open
핵심 요약
The root of sink marks in thick-walled parts is the feeding channel, and only high mold temperature plus effective holding pressure can solve it; after confirming effectiveness, fix the parameters and practices into the work instructions to prevent recurrence
이 정보가 도움이 되었나요?
0 명이 도움이 되었다고 합니다
의견 주셔서 감사합니다!