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  • Advantages and installation precautions of steel-plastic composite steel pipe

    Advantages and installation precautions of steel-plastic composite steel pipe

    In recent years, the status of ordinary steel pipes has declined rapidly. The fundamental factor is that environmental corrosion is serious. Even if the wall thickness of the steel pipe is large, it is always unrealistic to use the wall thickness to slow down the corrosion, because the wall layer...
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  • Matters needing attention when welding spiral steel pipe

    Matters needing attention when welding spiral steel pipe

    Welding and cutting of the spiral steel pipe structure are inevitable in the application of the spiral steel pipe. Because of the characteristics of the spiral steel pipe itself, compared with ordinary carbon steel, the welding and cutting of the spiral steel pipe have particularity, and it is ea...
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  • Welding method of welded straight seam steel pipe

    Welding method of welded straight seam steel pipe

    Welding, also known as welding, is a manufacturing process and technique that can join metals or other thermoplastic composite materials such as plastics by applying heat, high temperature, or high pressure. There are three welding methods of straight seam steel pipe: 1. Fusion welding. The workp...
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  • Types of oil casings

    Types of oil casings

    Different types of oil casing used in oil production: Surface oil casing protects the well from contamination by shallow water and shallow gas layers support wellhead equipment and maintain the weight of other layers of casing. Technical oil casing separates pressure at different levels so that d...
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  • The difference between high frequency welded steel pipe and straight seam welded steel pipe

    The difference between high frequency welded steel pipe and straight seam welded steel pipe

    No. 1. Different nature 1. High-frequency welded steel pipe: After the hot-rolled coil is formed by the forming machine, the skin effect and proximity effect of high-frequency current are used to heat and melt the edge of the tube blank, and pressure welding is performed under the action of the e...
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  • Significance of Heat Treatment Process for Oil Casing

    Significance of Heat Treatment Process for Oil Casing

    In addition to being used for oil exploration, the appearance of oil casing can also be used as a pipeline for transporting raw materials. To enhance the quality of oil casing, every link in the production process is particularly important, especially the temperature control during the period, wh...
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