back to «Production Process» page
Pipe Rolling Shop No 2 (T-2)
Commissioned in December 1975.
Oriented to production of pipes for oil industry: drill pipes, pipes for casing and tubing strings, pump-compressor and general-application pipes.
The production process includes hot rolling of pipes.
Hot-rolled pipe manufacture (on an example of manufacture of tube stock for casing string pipes):
- Tube stock arrival.
- Tube stock heating to t = 90 oC in hot-water bath to exclude cracking in the process of pipe breaking in shears.
- Tube stock breaking in press-shears to 2500 mm lengths.
- Tube stock heating in circular furnace to t = 1280 oC.
- Hot rolling of pipes in pipe rolling unit ТПА-140.
- Tube stock broaching in piercing mill.
- Sleeve rolling in lengthwise rolling mills No 1 and No 2.
- Pipe rolling in reeling mill.
- Pipe rolling in sizing mill.
- Pipe cooling in screw cooler.
- Pipe cooling in chain cooler.
- Smooth pipes finishing.
- Pipes straightening in straightener PBK600x3.
- Pipe ends cutting in pipe cutting mills 91A15.
- Pipes blowing in blowing machines.
- Acceptance by Quality Inspection Department.
- Thermal treatment of pipes.
- Thermal treatment of pipes in continuous gas furnaces with continuous-action conveyor table, working temperature from 950 to 1200 oC. The furnaces operate in continuous duty (no off-duty cycles during work shift), pipes are fed to the furnace for thermal treatment continuously one after the other, the furnace ports being permanently open.
- Pipe cooling in chain cooler.
- Pipe instrument testing.
- Shipment to customers (including transfer to shop T-4).
back to «Production Process» page
