Extrusion & Post
11 조회수
TPU Extrusion Surface Waves
문제 현상
Wave-shaped defects appear on the surface of TPU extruded sheets, with uneven thickness
원인 분석
During TPU extrusion, unstable melt flow produces waves; uneven die temperature, haul-off speed fluctuations, and inconsistent cooling all form surface ripples; when troubleshooting on site, verify item by item according to this mechanism, avoiding blind machine adjustment based solely on experience
해결 방법
①Uniform control of die temperature; ②closed-loop stabilization of haul-off speed; ③verification of cooling system uniformity; after adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability
핵심 요약
TPU extrusion waves are a mirror of flow stability; the three systems of temperature, haul-off, and cooling work in coordination; 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!