Extrusion & Post
11 조회수
PVC Profile Extrusion
문제 현상
Door and window profiles showed dimensional fluctuation, wave marks on the surface, and insufficient welded corner strength
원인 분석
PVC profile extrusion has high requirements for temperature and haul-off stability; uneven cooling causes dimensional fluctuation; haul-off speed fluctuation forms wave marks; the formulation lubrication system affects welding quality
해결 방법
①Equalize temperature of the sizing and cooling system; ②closed-loop stabilization of haul-off speed; ③lubrication system balancing processing and welding performance; after adjustment, continuously sample to verify the effect, and resume mass production after confirming stability
핵심 요약
PVC profiles are the representative of extrusion precision; only coordination of the three systems—temperature, haul-off, and lubrication—can achieve stability; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
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