Extrusion & Post
11 조회수
PPO Extrusion Die Land
문제 현상
【Problem Phenomenon】PPO extruded profiles have poor surface quality and unstable dimensions
원인 분석
PPO extrusion should have a relatively long die land to stabilize melt shaping; when the land is insufficient, the melt orients and rebounds after exiting the die, and surface and dimensions go out of control; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based solely on experience
해결 방법
Design the die with sufficient land length; precisely control die temperature; match haul-off speed with extrusion output; after adjustment, continuously sample to verify the effect, and resume mass production after confirming stability
핵심 요약
The PPO die land is quality insurance for profiles; if too short, surface and dimensions both go out of control; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
이 정보가 도움이 되었나요?
0 명이 도움이 되었다고 합니다
의견 주셔서 감사합니다!