Modern Technology Of Seamless Steel Tube Manufacturing
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Three-roll rolling tube billet have to first, after the extrusion sizing examination, if there is no action after split externally of pipeline have to be reduced after cutting machine, reducing grow about a meter of billet.And after that enter the annealing procedure, annealing with acid pickling liquid, pickling when need to take notice of whether there is a great deal of bubble surface area, if there is a great deal of bubbles reveal that the top quality of the steel tube can not fulfill the matching standards.Appearance on cold rolled seamless steel tube is shorter in hot rolled smooth steel pipeline, chilly rolled smooth steel tube wall surface density usually smaller than warm rolled smooth steel tube, but the surface area looks brighter than the thick ASTM A106 smooth steel pipeline, not a great deal of rough surface area, the size is not a lot of burr.
http://www.tjdecho.com of warm rolled smooth steel tube is generally made after warmth treatment.Hot-rolled seamless steel tube after QC ought to pass staff rigorous manual choice, after the quality inspection for surface coating of oil, and then complied with by chilly illustration experiment sometimes, perforation of the experiments carried out after warm rolling handling, if the punched hole diameter is too huge for aligning straightening.After straightening, the transmission tool is transferred to the detector to accomplish the examination, and afterwards the tag as well as the requirements are put into the storage facility.
Circular tube billet and home heating to punch, three-roll alter rolling, rolling, or pushing - pipeline - sizing (or decreasing) - cooling - straightening out to hydrostatic examination or evaluation - > tag, warehousing smooth steel tube is made from solid tube ingot or the perforation blood vessel, then through warm rolling as well as cool rolling or cool dial.The spec of seamless steel tube is indicated by the outer diameter of the wall surface density millimeter.
Usually more than Home rolled smooth steel tube diameter, wall surface thickness 2.5 200 mm, to 6 mm chilly rolled smooth steel tube size, wall density to 0.25 mm, to 5 mm thin wall pipeline diameter thickness less than 0.25 mm, chilly than hot rolled high dimensional precision.
http://www.tjdecho.com/ is usually made from the high quality carbon steel, such as 10, 20, 30, 35, 45, etc., such as low alloy steel, such as 16Mn, 5MnV, and so on, and so on, which are made of warm rolled or cold rolled steel, such as 40Cr, 30CrMnSi, 45Mn2, 40MnB, etc.The seamless pipe made by reduced carbon steel, such as 10 and also 20, is generally utilized for circulation pipe.The smooth job of tool carbon steel such as 45 as well as 40Cr is utilized to make mechanical parts, such as automobile and also tractor parts.Generally use seamless steel tube to make certain toughness and flattening test.Hot rolled steel pipeline in warm rolled state or heat treatment.Cold rolled with warm therapy.
Warm rolled, as the name implies, the temperature level of the rolling piece is high, so the contortion resistance is tiny, can accomplish the large deformation quantity.Take the moving system of steel plate as an instance, the density of the continuous casting billet is about 230mm, as well as the density is 1 ~ 20mm after roughing and rolling.At the exact same time, because the thickness of steel plate is smaller sized than little, the dimension precision demand is fairly low, the plate kind problem is hard to appear, the control convexity is given top priority.
http://www.tjdecho.com of warm rolled smooth steel tube is generally made after warmth treatment.Hot-rolled seamless steel tube after QC ought to pass staff rigorous manual choice, after the quality inspection for surface coating of oil, and then complied with by chilly illustration experiment sometimes, perforation of the experiments carried out after warm rolling handling, if the punched hole diameter is too huge for aligning straightening.After straightening, the transmission tool is transferred to the detector to accomplish the examination, and afterwards the tag as well as the requirements are put into the storage facility.
Circular tube billet and home heating to punch, three-roll alter rolling, rolling, or pushing - pipeline - sizing (or decreasing) - cooling - straightening out to hydrostatic examination or evaluation - > tag, warehousing smooth steel tube is made from solid tube ingot or the perforation blood vessel, then through warm rolling as well as cool rolling or cool dial.The spec of seamless steel tube is indicated by the outer diameter of the wall surface density millimeter.
Usually more than Home rolled smooth steel tube diameter, wall surface thickness 2.5 200 mm, to 6 mm chilly rolled smooth steel tube size, wall density to 0.25 mm, to 5 mm thin wall pipeline diameter thickness less than 0.25 mm, chilly than hot rolled high dimensional precision.
http://www.tjdecho.com/ is usually made from the high quality carbon steel, such as 10, 20, 30, 35, 45, etc., such as low alloy steel, such as 16Mn, 5MnV, and so on, and so on, which are made of warm rolled or cold rolled steel, such as 40Cr, 30CrMnSi, 45Mn2, 40MnB, etc.The seamless pipe made by reduced carbon steel, such as 10 and also 20, is generally utilized for circulation pipe.The smooth job of tool carbon steel such as 45 as well as 40Cr is utilized to make mechanical parts, such as automobile and also tractor parts.Generally use seamless steel tube to make certain toughness and flattening test.Hot rolled steel pipeline in warm rolled state or heat treatment.Cold rolled with warm therapy.
Warm rolled, as the name implies, the temperature level of the rolling piece is high, so the contortion resistance is tiny, can accomplish the large deformation quantity.Take the moving system of steel plate as an instance, the density of the continuous casting billet is about 230mm, as well as the density is 1 ~ 20mm after roughing and rolling.At the exact same time, because the thickness of steel plate is smaller sized than little, the dimension precision demand is fairly low, the plate kind problem is hard to appear, the control convexity is given top priority.
