ERW HFI EFW polad boru
ERW: Elektrik Müqaviməti Qaynaqlı boru
HFI: Yüksək Frekanslı İndüksiyon qaynaq borusu
EFW: Elektrikli Füzyon Kaynaklı Boru
Standart: API 5L, API 5CT, ASTM 53, EN10217, DIN 2458. IS 3589, JIS G3452, BS1387
Sertifikat: API 5L PSL1 / PSL2, API 5CT
Çıxış Çapı: 21.3mm - 610mm
Divar qalınlığı: 1.8 - 22mm
Uzunluq: 0,3 - 12m
Polad Sınıf: API 5L: GR B, X42, X46, X56, X60, X65, X70
ASTM A53: GR A, GR B, GR C
EN: S275, S275JR, S355JRH, S355J2H
GB: Q195, Q215, Q235, Q345, L175, L210, L245, L320, L360- L555
Səth: Müştəri tələbinə görə Füzyon bağ epoksi örtük, Kömür qatran epoksi, 3PE, Vanish örtük, Bitüm örtük, Qara yağ örtük
Sınaq: Kimyəvi Komponent Analizi, Mexanik Xüsusiyyətlər (Dartma dayanıqlığı, Verim gücü, Uzanma), Texniki Xüsusiyyətlər (Düzləşmə Testi, Bükülmə Testi, Darbe Testi, Zərbə Testi), Xarici Ölçü Təftişi, Hidrostatik Test, Rentgen Testi.
Dəyirman Testi Sertifikatı: EN 10204 / 3.1B
İstifadəsi: Su, qaz və yağ kimi aşağı təzyiqli maye çatdırılması üçün istifadə olunur. Yağ qazma və maşın istehsalı və s.
EFW pipe vs ERW pipe
Electric Fusion Welding (EFW steel pipe) refers to an electron beam welding, the use of high-speed movement of the electron beam directed impact kinetic energy is converted to heat the workpiece so that the workpiece leaving the melt, the formation of the weld.
It is mainly used for welding dissimilar steel welding sheet or which high power density, metal weldment can rapidly heated to high temperatures, which can melt any refractory metals and alloys. Deep penetration welding fast, heat-affected zone is extremely small, so small performance impact on the joints, the joint almost no distortion. But it has a requirement on a special welding room because welding using X-rays.
Electric Resistance Welding (ERW steel pipe): welding member combination is applying pressure through the electrodes, the use of current through the joint area of the contact surface and the adjacent heat generating resistance welding process method, Also known as contact welding. It has excellent toughness and dynamic load strength, welding deformation.
Commonly used spot welding, seam welding and butt three.
ERW pipe manufacturing process includes HFW. ERW have low, medium, high frequency welding processes, and HFW is specially for high-frequency electric resistance welding. The differences between ERW and HFW steel pipe, is EFW is a type of ERW process for ordinary and thin-wall thickness steel pipes.ERW pipe: Electric Resistance Welded Pipe
HFW pipe: High Frequency Welding pipe
