20inch(508mm) API ERW Pipe Mill Line Make: Ilsin(Korea) Installation year: 1977 Stopped year: November/2019 Pipe diameter: 5inch(127mm)~20inch(508mm) Pipe thickness: 3~12.7mm Pipe length: 6~20m Product Grade: API 5LX-70 20B X 12T, API 5CT J-55 13B X 10.92T Production capacity: 50ton~80ton/hour(18~20inch pipes) Line Speed: 35m/min Reversing speed: 40m/min The weght of rolls( 5inch~20inch) Total 529 tons (5inch: 43tons, 6inch:43tons ,7inch: 43, 7.625 inch: 43, 8inch; 43, 9inch: 43, 10inch: 26, 12inch; 43, 13inch: 43, 14inch: 26, 16inch: 47, 18inch:31tons, 20inch: 55tons) (Retrofit) Sizing part was changed by brand new in 2011 On line /Off line UT was installed in 2006 Hydro tester was retrofitted in 2011 Seam anneler 600kW(2000HZ) 2 units were changed by brand new in 2010 and 2013 (Drive) Paker(U.S.A), Toyodenki(Japan), Mitsubishi(Japan) (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×1500stroke 2) WELDER Make: Thermatool(U.S.A) / Drive: Yaskawa(Japan) - Max. plate volt : 20KV, DC - Filament volt : 17.5 volts - Max. plate current : 50A D.C - Grid current : 9A, frequency : 400 KHZ
3)FORMING - Drving motor : DC450KW 850/1700 RPM - Min reducer : 6.792 :1 4)FIN PASS - Driving motor : DC 150KW - Main reducer : 6.792 :1 5)PULL OUT - Reducer : 1st : 1/60. 008 2nd : 1/118.86 6)SURFACE BEAD CUTTER -Air cylinder : 80Φ×60 ST 7)SEAM ANNEALER -600KW, 2KHZ( Themotool:USA) year 2010 - 600KW, 2KHZ(PSTEK:Korea) year 2013 - Annealing pipe size : 5”(127mm) ~ 20”(508mm) - Thickness : 4mm ~ 12.7mm 8)ON LINE U/T -Seam U/T - U/T : KRAUTKRAMER USIP 40
9) SIZING PART(Auto change type) -Manufacturing year: 2011 - Driving motor : AC 150HP - Reducer : 1/60.29 (4ea) 10)OFF LINE U/T - U/T : KRAUTKRAMER USIP 40 11) ULTRASONIC TESTER -Make: NDT(Korea) -Year:2008 -Pipe ouside diameter:130mm~610mm -Pipe length : 5,000 ~ 20,000mm -Seam U/T x1 unit -Full body U/T x unit -PLC make:Mitsubishi(Japan) - Pressure Intensifier: 120 ㎏/㎠ ~ 500 ㎏/㎠ 12) DISC CUT-OFF MACHINE -Drum rotation type -Disc knife, -DDS type - Drving motor : DC45KW ×850/2400 - Hydraulic cylinder : 180Φ×1500 ST - Brake air cylinder; 160Φ×45 ST - Driving motor : DC45KW ×850/240 13)LEVLLER -Make: WYKO (England) - Year: 1986 -Levelling capacity: -Otside dia.: 73 ~ 225㎜ -Levelling thickness: 3.2 ~ 12.7mm - Levelling speed : 4.5 ~ 90m/min -Levelling rolling force: : 70 TONS -Levelling bending moment: 380ton S/M -Straightness : 1/2000 below 14)#2 END FACING MACHINE Pipe outside dia.: 152mm ~ 609mm Pipe length:4.8m~19.4m Spindle speed: 250-600 RPM Motor: DC motor 100HP Spindle Head motor frame: RELIANCE UB408ATZ,
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