Modern Technology Of Seamless Steel Tube Production
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Three-roll rolling tube billet should initially, after the extrusion sizing test, if there is no response after crack on the surface of pipeline need to be reduced after cutting equipment, cutting expand about a meter of billet.And then enter the annealing process, annealing with acid pickling fluid, marinading when need to pay attention to whether there is a lot of bubble surface area, if there is a lot of bubbles show that the quality of the steel tube can not fulfill the equivalent standards.Appearance on cold rolled smooth steel tube is much shorter in hot rolled smooth steel pipe, cool rolled smooth steel tube wall surface thickness normally smaller sized than warm rolled seamless steel tube, yet the surface looks brighter than the thick ASTM A106 smooth steel pipeline, not a great deal of harsh surface, the diameter is not a great deal of burr.
learn more of warm rolled seamless steel tube is usually made after warm treatment.Hot-rolled smooth steel tube after QC ought to pass team strict manual pick, after the top quality examination for surface area finish of oil, and afterwards adhered to by cold illustration experiment lot of times, opening of the experiments performed after warm rolling handling, if the punched hole diameter is too huge for straightening straightening.After straightening, the transmission device is sent to the detector to execute the examination, and afterwards the label and also the spec are put into the storehouse.
Circular tube billet and also heating to punch, three-roll skew rolling, rolling, or pushing - pipeline - sizing (or decreasing) - cooling - correcting to hydrostatic examination or evaluation - > tag, warehousing seamless steel tube is made from strong tube ingot or the opening vein, then with warm rolling and cold rolling or chilly dial.The requirements of seamless steel tube is indicated by the outer diameter of the wall surface density millimeter.
Usually higher than 32 mm hot rolled smooth steel tube diameter, wall density 2.5 200 mm, to 6 mm cool rolled seamless steel tube diameter, wall thickness to 0.25 mm, to 5 mm slim wall pipeline size thickness less than 0.25 mm, cool than hot rolled high dimensional accuracy.
It is typically made from the top quality carbon steel, such as 10, 20, 30, 35, 45, etc., such as reduced alloy steel, such as 16Mn, 5MnV, etc., and so on, which are made of hot rolled or cool rolled steel, such as 40Cr, 30CrMnSi, 45Mn2, 40MnB, etc.The seamless pipe made by reduced carbon steel, such as 10 as well as 20, is mostly used for circulation pipe.The smooth work of medium carbon steel such as 45 and 40Cr is used to make mechanical parts, such as car as well as tractor parts.Generally make use of smooth steel tube to guarantee strength and also flattening test.Hot rolled steel pipeline in warm rolled state or warmth treatment.Cold rolled with warmth therapy.
Warm rolled, as the name indicates, the temperature of the rolling piece is high, so the deformation resistance is tiny, can attain the large contortion quantity.Take the rolling system of steel plate as an example, the density of the continual spreading billet is about 230mm, and the density is 1 ~ 20mm after roughing and also rolling.At the same time, due to the fact that the density of steel plate is smaller than tiny, the dimension precision demand is reasonably low, the plate kind issue is challenging to appear, the control convexity is offered top priority.
learn more of warm rolled seamless steel tube is usually made after warm treatment.Hot-rolled smooth steel tube after QC ought to pass team strict manual pick, after the top quality examination for surface area finish of oil, and afterwards adhered to by cold illustration experiment lot of times, opening of the experiments performed after warm rolling handling, if the punched hole diameter is too huge for straightening straightening.After straightening, the transmission device is sent to the detector to execute the examination, and afterwards the label and also the spec are put into the storehouse.
Circular tube billet and also heating to punch, three-roll skew rolling, rolling, or pushing - pipeline - sizing (or decreasing) - cooling - correcting to hydrostatic examination or evaluation - > tag, warehousing seamless steel tube is made from strong tube ingot or the opening vein, then with warm rolling and cold rolling or chilly dial.The requirements of seamless steel tube is indicated by the outer diameter of the wall surface density millimeter.
Usually higher than 32 mm hot rolled smooth steel tube diameter, wall density 2.5 200 mm, to 6 mm cool rolled seamless steel tube diameter, wall thickness to 0.25 mm, to 5 mm slim wall pipeline size thickness less than 0.25 mm, cool than hot rolled high dimensional accuracy.
It is typically made from the top quality carbon steel, such as 10, 20, 30, 35, 45, etc., such as reduced alloy steel, such as 16Mn, 5MnV, etc., and so on, which are made of hot rolled or cool rolled steel, such as 40Cr, 30CrMnSi, 45Mn2, 40MnB, etc.The seamless pipe made by reduced carbon steel, such as 10 as well as 20, is mostly used for circulation pipe.The smooth work of medium carbon steel such as 45 and 40Cr is used to make mechanical parts, such as car as well as tractor parts.Generally make use of smooth steel tube to guarantee strength and also flattening test.Hot rolled steel pipeline in warm rolled state or warmth treatment.Cold rolled with warmth therapy.
Warm rolled, as the name indicates, the temperature of the rolling piece is high, so the deformation resistance is tiny, can attain the large contortion quantity.Take the rolling system of steel plate as an example, the density of the continual spreading billet is about 230mm, and the density is 1 ~ 20mm after roughing and also rolling.At the same time, due to the fact that the density of steel plate is smaller than tiny, the dimension precision demand is reasonably low, the plate kind issue is challenging to appear, the control convexity is offered top priority.
