Processing Machinery
3 조회수
PCABS Sink Marks and Wall Thickness
문제 현상
[Problem Phenomenon] PC/ABS thick-walled rib backs have sink marks, and the appearance is unqualified
원인 분석
In thick-walled areas, the outer layer solidifies first and internal shrinkage pulls in the surface; excessive rib wall thickness is the main structural cause; insufficient holding pressure aggravates it; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based only on experience
해결 방법
Control rib thickness to 50-60% of the main wall; raise holding pressure to 50-70% of injection and extend time; reduce material or strengthen cooling in thick areas; after adjustment, continuously sample to verify the effect, and resume mass production after confirming stability
핵심 요약
For PC/ABS sink marks, first check wall thickness and rib thickness, then supplement with holding pressure; 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 in the future
이 정보가 도움이 되었나요?
0 명이 도움이 되었다고 합니다
의견 주셔서 감사합니다!