Large diameter thick-walled tube thick-walled tubes

Supply of thick-walled pipe factory - Shandong thick-walled seamless steel pipe manufacturers manufacturing process 1. Hot-rolled (extruded seamless pipe): round tube → heating → perforation → three-roll rolling, rolling or extrusion → detached → sizing (or reducing) → cooling → straightening → hydrostatic test (or testing) → mark → storage of raw material is rolled seamless round tube, pipe cutting the growth of the embryo must go through the cutting machine about 1 meter blank, and by the conveyor belt to the furnace heating. The billet is fed in the heating furnace, a temperature of about 1200 ℃. Fuel for hydrogen or acetylene. Furnace temperature control is a key issue. After the round tube came out to go through the pressure punching machine wear empty. Generally more common punch is tapered roller punching machine, punching machine such high production efficiency, product quality, perforated expanding capacity, can be worn a variety of steels. After perforation, round tube has been three-roll rolling, rolling or extrusion. To take off the tube after extrusion sizing. Sizing machine rotating at high speed into the embryo through a tapered drill steel perforated to form the pipe. Pipe inner diameter is determined by the outer diameter sizing mill drill length. After sizing pipe after entering the cooling tower, cooling by water, steel after cooling, it will be straightened. After straightening steel belt sent by metal detection machine (or hydrostatic test) for internal testing. If the internal pipe cracks, bubbles and other issues, will be detected. After the pipe through strict quality control but also the selection of hand. After the pipe inspection, spray paint on number, size, batch number and so on. By a crane into the warehouse. 2. Cold drawn (rolled) seamless steel pipe: round tube → heating → perforation → Heading → annealing → pickling → oiled (copper) → multi-pass cold drawn (cold) → billet tube heat treatment → → straightening → hydrostatic test (testing) → mark → storage. Seamless tube production categories - hot-rolled tubes, cold-rolled, cold drawn tubes, squeeze tubes, seamless steel pipe jacking 1. Structure (GB / T8162-1999) is used for general structural and mechanical structure of the seamless pipe. 2 fluid seamless steel pipe (GB / T8163-1999) is generally seamless for conveying water, oil, gas and other fluids. 3. The low-pressure boiler seamless steel pipe (GB3087-1999) is used in the manufacture of various structural low and medium pressure boiler superheated steam pipes, boiling water pipes and superheated steam locomotive boiler tubes, opium pipe, small pipe and brick arch effective high-quality carbon structural steel hot-rolled and cold drawn (rolled) seamless steel pipe. 4. High-quality carbon steel high-pressure boiler seamless pipe (GB5310-1995) is used to manufacture high-pressure and more pressure water tube boiler heating surface with steel, alloy steel and heat-resistant stainless steel seamless steel tubes. 5. fertilizer equipment, high pressure seamless steel pipe (GB6479-2000) is applicable to operating temperature -40 ~ 400 ℃, working pressure of high-quality carbon structural steel and alloy steel 10 ~ 30Ma of chemical equipment and seamless steel pipes. 6. petroleum cracking seamless pipe (GB9948-88) is applied to the oil refinery furnace tubes, heat exchangers and pipe seamless steel pipe. 7. Geological Drilling Pipe (YB235-70) is for the geological department of the steel core drilling used by applications can be divided into the drill pipe, drill collar, core pipe, casing and precipitation tubes. 8. Diamond core drilling seamless pipe (GB3423-82) is a drill, core rods used for diamond core drilling seamless steel pipe casing. 9. oil drilling pipe (YB528-65) is used to thicken the oil drilling within or outside the thick ends of seamless steel tubes. Steel sub-filaments and not two, Threading Pipe Fittings links, no threading methods and tools useful butt joint connection. The raw material is rolled seamless round tube, tube embryos subjected to cutting a length of about 1 meter cutter blank, and by the conveyor belt to the furnace heating. The billet is fed in the heating furnace, a temperature of about 1200 ℃. Fuel for hydrogen or acetylene. Furnace temperature control is a key issue. After the round tube came out to go through the pressure punching machine wear empty. Generally more common punch is tapered roller punching machine, punching machine such high production efficiency, product quality, perforated expanding capacity, can be worn a variety of steels. After perforation, round tube has been three-roll rolling, rolling or extrusion. To take off the tube after extrusion sizing. Sizing machine rotating at high speed into the embryo through a tapered drill steel perforated to form the pipe. Pipe inner diameter is determined by the outer diameter sizing mill drill length. After sizing pipe after entering the cooling tower, cooling by water, steel after cooling, it will be straightened. After straightening steel belt sent by metal detection machine (or hydrostatic test) for internal testing. If the internal pipe cracks, bubbles and other issues, will be detected. After the pipe through strict quality control but also the selection of hand. After the pipe inspection, spray paint on number, size, batch number and so on. By a crane into the warehouse. Pipe Co., Ltd., Shandong Liaocheng Taixiang /// supply walled pipe factory - Shandong thick-walled tube manufacturers