Extrusion & Post
4 조회수
Flow marks on PETG extruded sheet
문제 현상
Flow line marks along the extrusion direction appear on the sheet surface.
원인 분석
The melt flow in the die head is uneven, the die head flow channel design has dead corners, and the extrusion temperature is uneven.
해결 방법
Optimize the die head flow channel design; balance the heating; increase the processing temperature to reduce the viscosity.
핵심 요약
PETG sheet flow marks point to die head flow channel design problems.
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