In the processing of thick-walled seamless steel pipes, many steps are required to obtain such high-quality pipes.
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Flattening and cracking of ERW pipe welds are caused by insufficient weld strength, toughness or ductility.
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Flattening and cracking of ERW pipe welds are caused by insufficient weld strength, toughness or ductility.
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The manufacturing method is the same as that of seamless steel pipes, but there are certain strict requirements on the steel grades used in the manufacture of steel pipes.
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The seamless steel pipe is made of perforated whole round steel, and the steel pipe without weld seam on the surface is called seamless steel pipe.
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High-frequency welding originated in the 1950s. It is a new welding process that uses the skin effect and adjacent effect generated by high-frequency current to connect steel plates and other metal materials.
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Use solvents and emulsions to clean the surface of wear-resistant pipes, wear-resistant ceramic pipes, ceramic pipes, and ceramic composite pipes to remove oil, grease, dust
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Common problems of high frequency welding and their causes and solutions: Welding is not strong, desoldering, cold stacking
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Seamless tubes are made from solid round steel "bills" that are heated and pushed and pulled over a die until the steel is formed into a hollow tube.
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The heat exchange tube is one of the elements of the heat exchanger, which is placed in the cylinder and used for heat exchange between the two media.
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ERW pipe is a general term for electric resistance welded steel pipes, and straight seam high frequency electric resistance welded pipes are referred to as ERW
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According to the standard requirements, the dimensional inspection of seamless steel pipes mainly includes the wall thickness, outer diameter, length, curvature, ovality and end face shape of the steel pipe.
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