2024-10-11 42CrMo is a commonly used alloy structural steel with excellent mechanical properties and heat treatment plasticity. It is widely used in the manufacture of mechanical parts and engineering machinery. Heat treatment is one of the important processes for 42CrMo to obtain excellent performance. 42CrMo
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2024-10-10 1. Surface conditions of 304 seamless stainless steel pipe1.1 Composition analysisUnder the same equipment conditions, the black and white oblique stripe samples were tested for energy spectrum, and the black and white stripe samples were tested for energy spectrum. The black and white stripe areas
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2024-10-09 Causes of milling defects of spiral seam submerged arc welded steel pipes and their impact on steel pipe quality1. Milling slip or working width changeDuring the milling process, the main reasons for the milling machine to mill or the change of the working width of the steel plate are as follows.(1)
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2024-10-08 First, grinding is the prerequisite.The galvanized layer at the welding point must be polished off, otherwise, bubbles, sand holes, false welding, etc. will be generated. It will also make the weld brittle and reduce rigidity.Second, the welding characteristics of galvanized steelGalvanized steel is
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2024-09-30 According to the deformation principle of rolled pieces, steel rolling is generally divided into the following three forms:1. Longitudinal rollingThe running direction (axis) of the rolled piece is perpendicular to the axis of the roll, and the rolled piece moves in a straight line; the production o
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2024-09-29 This paper introduces an ultrasonic flaw detection method for longitudinal inner wall defects of ultra-thick-walled steel pipes--the modified shear wave oblique projection method. The incident angle of the probe is selected within the range less than the first critical angle, and the modified shear
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2024-09-26 Steel Pipe Processing and Furnace Loading:1. During the heat treatment process, workpieces that are easily deformed should be heated on a special fixture2. The workpiece should be placed in the effective heating zonePreheating:1. For workpieces with complex shapes or sharp changes in cross-section a
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2024-09-25 What are the material requirements for seamless steel pipe 2195? First of all, we need to understand what seamless steel pipe is and why material requirements are so important. Seamless steel pipe is an important pipe material, widely used in petroleum, chemical, metallurgy, electric power, aviation
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