Injection Molding
6 조회수
PCABS injection speed grading
문제 현상
【Problem Phenomenon】PC/ABS single injection speed loses one thing for another, flow marks and shear heat coexist
원인 분석
Multi-stage injection is the PC/ABS standard: slow speed at the gate to prevent jetting, medium-fast speed in the middle section for filling, slow speed at the end for venting and preventing burning; too fast causes shear heat degradation, too slow causes flow marks
해결 방법
Adopt a speed profile of three or more stages; slow at gate - fast in middle - slow at end; refine grading for complex parts; after adjustment, take continuous samples to verify the effect, and resume mass production only after confirming stability
핵심 요약
PC/ABS multi-stage injection: slow entry, fast middle, slow finish; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a troubleshooting reference for similar problems later
이 정보가 도움이 되었나요?
0 명이 도움이 되었다고 합니다
의견 주셔서 감사합니다!