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  • Forging methods of alloy steel tube

    Forging methods of alloy steel tube

    Forging methods of alloy steel tube Forged steel pipe can be divided into free forging, upsetting, extrusion, forging, closed die forging, closed upsetting. Closed die forging and closed upsetting because there is no flash, material utilization is high. With a process or several processes may be ...
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  • ERW Pipe’s development prospects and facing issues

    ERW Pipe’s development prospects and facing issues

    ERW Pipe‘s development prospects and facing issues Resistance welding is short of ERW steel pipe with number of advantages, such as high productivity, low cost, good dimensional accuracy, beautiful appearance. However, in the past, due to the poor reliability of the weld, great limitations ...
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  • Characteristic of casing pipe

    Characteristic of casing pipe

    Casing is important to oil drilling equipment, and its main equipment includes drill, core pipe and casing, drill collars and drilling small diameter steel pipe and so on. The casing is used to support oil and gas wall of the pipe, to ensure that the drilling and completion of the process of the ...
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  • Applications of lined steel pipe

    Applications of lined steel pipe

    Lined steel pipe technology inherited respective advantages of lined steel pipe and plastic pipe, and conduct comprehensive analysis of the rational design of the pipe according to market demand, production technology, corrosion protection, connection, cost and other aspects. Thus, the pipe has a...
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  • Cold extrusion

    Cold extrusion

    Cold extrusion is a metal blank in cold extrusion mold cavity, at room temperature by applying pressure to the blank on a fixed punch presses, plastic deformation of the metal blank machining method was prepared parts. At present, China has been able to lead, tin, aluminum, copper, zinc and its a...
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  • Characteristics of boiler pipe and cold-rolled stainless steel seamless pipe

    Characteristics of boiler pipe and cold-rolled stainless steel seamless pipe

    Characteristics of boiler pipe  Boiler tubes often in high temperature and high pressure work, pipe smoke and water at high temperature steam oxidation and corrosion effects will occur, thus requiring durable steel with high strength, high oxidation resistance, and good organizational stability, ...
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