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盛仕达钢铁股份有限公司

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  • What should be paid attention to when welding galvanized steel pipe

    What should be paid attention to when welding galvanized steel pipe

    What should be paid attention to when welding galvanized steel pipe 1. The premise must be polished The galvanized layer of the weld must be polished away, otherwise air bubbles, trachoma, false welding, etc. will occur. It will also make the weld brittle and reduce the rigidity. 2. The welding c...
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  • Preventive measures for improper connection when a galvanized steel pipe is connected

    Preventive measures for improper connection when a galvanized steel pipe is connected

    Preventive measures for improper connection when a galvanized steel pipe is connected 1. In the selection of pipe materials, high-quality should be selected; the connection method should be finally determined through the design specification requirements and the size of the pipe fittings. The con...
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  • The main production process of large diameter straight seam welded pipe

    The main production process of large diameter straight seam welded pipe

    1. Plate exploration: After the steel plate used to manufacture large-diameter submerged arc welded straight seam steel pipe enters the production line, the full plate ultrasonic inspection is first performed; 2. Edge milling: double-sided milling of the two edges of the steel plate by a milling ...
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  • Precautions for welding stainless steel pipe fittings

    Precautions for welding stainless steel pipe fittings

    1. In order to prevent erosion due to heating, the welding should not be too long. It should be 20% less than the carbon steel electrode. The arc should not be too long. The layers should be cool quickly. The narrow weld bead is suitable. 2. The hardening of the stainless steel pipe fittings is q...
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  • Processing method of stainless steel pipe fittings

    Processing method of stainless steel pipe fittings

    Stainless steel pipe fittings are a new type of pipe fittings that are widely used. Generally speaking, the processing methods are as follows : 1. Forging method: the end or part of the pipe is punched out with a swaging machine to reduce the outer diameter. Common swaging machines include rotary...
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  • Stainless steel does not rust

    Stainless steel does not rust

    Stainless steel is an extremely thin, strong, dense, and stable chromium-rich oxide film (protective film) formed on its surface to prevent the relay of oxygen atoms. Continue to penetrate, continue to oxidize, and obtain the ability to resist rust. Once for some reason, this kind of film has bee...
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  • Connection method of carbon steel seamless pipe

    Connection method of carbon steel seamless pipe

    (1) The importance of heavy industrial structures, large-span structures, high-rise or super-high-rise civil building structures or other important structural structures, should consider the selection of high-quality seamless steel pipes, generally according to the working nature of industrial an...
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  • What causes corrosion of stainless steel welded pipe?

    What causes corrosion of stainless steel welded pipe?

    There are two main reasons for corrosion of stainless steel welded pipe 70% are processed. Due to the contamination of iron and copper tools during processing, the argon gas in the welding cannot be well protected and oxidation will occur. In addition, excessive damage to the surface of the anti...
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  • The difference between precision steel pipe and spiral steel pipe

    The difference between precision steel pipe and spiral steel pipe

    Precision spiral steel pipe is a high-precision steel pipe that is cold drawn or hot rolled. Because the inner and outer walls of the precision spiral steel pipe have no oxide layer, there is no high pressure, no leakage, high precision, high smoothness, no cold deformation, flaring, flattening, ...
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