Extrusion & Post
11 görüntüleme
EEA extruded pipe ovality out of tolerance
Sorun Belirtisi
EEA extruded pipe ovality >1.05 exceeding the 1.02 standard requirement
Neden Analizi
Uneven pipe cooling, single-side cooling; unreasonable sizing sleeve design; uneven haul-off clamping force causing pipe deformation under pressure
Çözüm
1) Adopt annular spray cooling to ensure uniform temperature reduction; 2) Optimize sizing sleeve inner diameter and taper design; 3) Multi-caterpillar uniform clamping haul-off; 4) Increase vacuum sizing section length to ensure full sizing
Temel Çıkarım
Ovality is caused by uneven cooling and clamping; annular cooling and uniform haul-off are the key
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