Injection Molding
5 조회수
TPU Injection Pressure Grading
문제 현상
Thin-wall parts are not fully filled, or excessively high pressure produces flash and internal stress cracking
원인 분석
TPU injection pressure is graded by structure: medium pressure for general parts, high pressure for thin-wall long-flow parts; excessively high pressure produces flash and internal stress, causing cracking during demolding; when troubleshooting on site, verify item by item according to this mechanism to avoid blindly adjusting the machine based only on experience
해결 방법
①Set injection pressure graded according to product structure; ②Appropriately increase for thin-wall parts; ③Reduce pressure when flash and cracking occur; after adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability
핵심 요약
TPU pressure setting should be tailored to each part; high pressure buys filling, but also brings flash and stress risks; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence
이 정보가 도움이 되었나요?
0 명이 도움이 되었다고 합니다
의견 주셔서 감사합니다!