20 INC(508MM) API ERW PIPE MILL LINE
20inch(508mm) API ERW Pipe Mill LineMake: Ilsin(Korea)Installation year: 1977Retrofit(Sizing part): 2011Final Maintenance and Overhaul year: 2013Stop year: November/2019Pipe diameter: 5inch~20inch(508mm)Pipe thickness: 3~12.7mmPipe length: 6~21mProduction capacity: 50ton~80ton/hour(18~20inch pipes)Speed:15m/min(20inch pipe)18m/min(9inch~18inch)(Process)Uncoiler-Forming-Welder-Seam annealer-Sizing mill-Cut off machine-Hydro tester, E/F- Ultrasonic tester-Varnish coater-Product(Equipment list)1) Uncoiler- Driving motor : DC45KW ×850/2400- Hydraulic cylinder: : 180Φ×1500stroke2) Forming- Driving motor : DC450KW 850/1700 RPM3) WelderMake: Thermatool(U.S.A) / Drive: Yaskawa(Japan)- Max. plate volt : 20KV, DC- Filament volt : 17.5 volts- Max. plate current : 50 AMPS D.C- Grid current : 9 Amps frequency : 400 KHZ4) Seam Annealer - 400KW, 3KHX (1unit), 600KW, 2KHX (1unit)5) Sizing(Auto change type)Manufacturing year;2011- Driving motor : AC 150HP6) Cut-Off(Drum rotation type: Disc knife)- Driving motor : DC45KW ×850/2407) Leveller8) Automatic end facing machine9) Ultrasonic testerSeam U/T x1 unitFull body U/T x unitMake: NDT(Korea)Year: 2008- Pressure Intensifier: 120 ㎏/㎠ ~ 500 ㎏/㎠Outer diameter : 130 ~ 610mm/Length : 5,000 ~ 20,000mm10)Oil Coater11) Varnish CoaterMake: Sejong(Korea)Year: 2016- Airless cold spray type, 5” ~ 20”