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  • Geometrical characteristics of large-diameter steel pipe section

    Geometrical characteristics of large-diameter steel pipe section

    (1) The node connection is suitable for direct welding, and it does not need to pass through the node plate or other connecting parts, which saves labor and materials. (2) When necessary, concrete can be poured into the pipe to form a composite component. (3) The geometric characteristics of the ...
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  • Characteristics of construction method of argon arc welding of thin-walled stainless steel pipe socket

    Characteristics of construction method of argon arc welding of thin-walled stainless steel pipe socket

    1. The welding process does not require welding materials (replaced by the pipe expansion side). The steel pipe is inserted into the socket of the pipe fitting, and the end of the bearing is welded in a circle with tungsten argon arc welding (GTAW) to melt the pipe into one body. The welding seam...
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  • Advantages of coated composite steel pipe for fire protection

    Advantages of coated composite steel pipe for fire protection

    1. Hygienic, non-toxic, no fouling, no microorganisms, and guarantee of fluid quality 2. Resistant to chemical corrosion, soil and marine organism corrosion, cathodic disbondment resistance 3. The installation process is mature, convenient, and fast, and the connection is similar to ordinary galv...
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  • How to deal with the oxide scale of sanitary stainless steel pipe

    How to deal with the oxide scale of sanitary stainless steel pipe

    There are mechanical, chemical, and electrochemical methods to remove the oxide scale of sanitary stainless steel pipes. Because of the complexity of the oxide scale composition of sanitary stainless steel pipes, it is not easy to remove the oxide scale on the surface, but also to make the surfac...
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  • How to Unblock the Gathering and Transportation Wax Condensation Buried Oil Pipeline in Winter

    How to Unblock the Gathering and Transportation Wax Condensation Buried Oil Pipeline in Winter

    The hot water sweeping method can be used to remove the blockage:   1. Use a 500 or 400 pump truck, 60 cubic meters of hot water at about 70 degrees Celsius (depending on the pipeline volume).   2. Connect the wire sweeping pipeline to the wire sweeping head. The pipeline should be firmly connect...
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  • Anti-corrosion treatment of ductile iron pipe

    Anti-corrosion treatment of ductile iron pipe

    1. Asphalt paint coating The asphalt paint coating is used to transport gas pipelines. Preheating the pipe before painting can improve the adhesion of the asphalt paint and accelerate the drying.   2. Cement mortar lining + special coating This kind of internal anti-corrosion measure is suitable ...
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