203MM STEEL SEAMLESS PIPE MANUFACTURING PLANT
203mm Steel Seamless Pipe Manufacturing PlantDesigner/Manufacturer: Mannesmann(German)/JapaneseStopped year: 2019Retrofit had been carried out until 2012.Pipe diameter: 25.4mm~203mm(Hot finish)Pipe thickness: 3mm~50mm(Hot finish)Pipe diameter: 6mm~177.8mm(Cold finish)Pipe thickness: 1mm~17mm(Cold finish)Process type: Mannesmann-Plug Mill ProcessProduction capacity: 136,000ton/year
(Hot rolled Pipe Process)Pipe material→Heating→Piercing Rolling(Plug mill)→Reeling→Sizing→Reheating→Stretch reducing→Cooling→Straightner → Non destructive inspection→Marking and painting→Hot rolled pipes
(Cold rolled Pipe Process)Pipe material→Heating→Piercing→Rolling(Plug mill)→Reeling →Sizing→Reheating→ Stretch reducing→Cooling→Straightner → Lubrication process→Cold forging→Heat treatment→ Straightner→Cutting→Non Destructive inspection→Marking and painting→Cold rolled pipes
Pilger millSqueezing millSizing millTMPC(Thermo-Mechanical Control Process)equipmentAutomatic acid cleaning equipmentMiddle size swaging machineLarge size swaging machineCooling bedCenterless equipmentSurface treatment equipmentBright annealing furnacePipe end heating furnaceDrying furnaceHigh speed surface grinding machineStraightenerStraightening pressCutting machineEnd facing machineCold rolling millHydraulic testerUltrasonic testerRadiation testing apparatusCoating machine for cold rolled pipesTesters