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  • How to Bonding Thermal Expansion Pipe

    Date:2016-10-16      View(s):1552      Tag:seamless pipe, seamless steel pipe

    How to bond the thermal expansion seamless steel pipe :...

  • The Pipe-line Detection of Welded Steel Pipe

    Date:2016-10-15      View(s):1454      Tag:steel pipe, welded pipe, welded steel pipe

    Welded steel pipe at the factory to go through rigorous testing to ensure the quality of welded compliance standards and user requirements. ...

  • Welding Process of Straight Seam Welded Pipe

    Date:2016-10-13      View(s):1561      Tag:straight seam steel pipe, straighti seam welded pipe

    Longitudinal straight seam welded pipe butt weld joint cross-sectional shape, depending on the thickness of the body to be welded before welding groove and then type two sides. ...

  • Seamless Pipe Rolling

    Date:2016-10-12      View(s):1534      Tag:seamless pipe, seamless steel pipe, seamless pipe factory

    The raw material is rolled seamless round tube, tube embryos to go through a cutting machine cutting a length of about 1 meter blank, and by conveyor belt to the furnace heating. ...

  • Line Pipe Plate Production

    Date:2016-10-10      View(s):1470      Tag:line pipe, API line pipe, API 5L line pipe, ERW Line Pipe

    In the domestic pipeline steel production process are: a conventional semi-continuous hot rolling, CSP continuous casting and rolling, plate units, Steckel unit....

  • Non-destructive Testing of Straight Seam Steel Surface

    Date:2016-10-09      View(s):1597      Tag:straight seam steel pipe, straighti seam welded pipe

    Surface NDT methods of straight seam steel selection principles: magnetic iron pipe should be used in magnetic particle testing; non-ferromagnetic steel should be used in penetration testing. ...

  • Tips of Improving Straight Seam Steel Pipe Surface Wall Thickness

    Date:2016-10-08      View(s):1393      Tag:straight seam steel pipe, straighti seam welded pipe

    Tips of Improving Straight Seam Steel Pipe Surface Wall Thickness...

  • Cold Pressure Welding

    Date:2016-10-06      View(s):1514      Tag:cold welding, cold welding pipe

    Cold pressure welding, at room temperature conditions, with the help of the metal to be welded to produce plastic deformation and solid-state welding method. Pressure deformation, the workpiece contact surface of the oxide film is destroyed and squeezed out, so that pure metal contacts to achieve intergranular bonding, to clean the welded joints. ...

  • Welding Defects of High Frequency Welded Pipe and Its Analysis

    Date:2016-10-05      View(s):1878      Tag:high frequency welded pipe, erw steel pipe, erw welded pipe

    High frequency straight seam welded steel pipe welding quality defects are cracks, welding, water leakage, scratches and so on....

  • The Relativity Weld Heat Affected Zone and Welded Pipe Quality

    Date:2016-10-04      View(s):1510      Tag:ERW steel pipe, ERW carbon steel pipe, welded steel pipe, electric resistance welding

    The quality of welding is not only directly related to the quality of the tube, especially with the design of the forming roll, the forming process, the choice of welding parameters. ...

  • ERW Pipe Production Process and Rolling Groove Processing Principle

    Date:2016-10-03      View(s):1588      Tag:ERW steel pipe, ERW carbon steel pipe, welded steel pipe, electric resistance welding

    High-frequency resistance welding production is characterized by high production efficiency, weld heat affected zone is small, low quality requirements on the bonding surface, but the molding quality requirements, forming process Any change in the shape of the V-shaped opening may cause welding quality problems....

  • High Frequency Welding Machine in ERW Weld Pipeline

    Date:2016-10-02      View(s):1690      Tag:high frequency welding, electric resistance welding, welded steel pipe manufacturer

    ERW steel pipe line which introduced the German SMS Meer company developed molding equipment and technology, and equipped with the world's most advanced non-destructive testing equipment, high-frequency welding equipment, heat treatment of welding equipment....

  • Improve Production Technology of ERW Steel Pipe

    Date:2016-10-01      View(s):2129      Tag:erw pipe, erw steel pipe, electric resistance welded pipe

    ERW (ERW straight seam welded steel pipe) is a hot-rolled coil after molding machine, the use of high-frequency current skin effect and proximity effect, so that the edge of the tube is heated to melt under the action of squeezing rollers pressure welding to achieve production....

  • How To Deal With The Welding Slag of Spiral Welded Pipe

    Date:2016-09-30      View(s):1590      Tag:ssaw pipe, ssaw steel pipe, spiral welded pipe, spiral weld pipe

    Spiral welded pipe in recent years, the development of better and better in our lives are often used spiral welded pipe, spiral welded pipe in the welding process but will be some welding slag, which slag require extra care in handling only the spiral welded pipe more smoothly in the next use....

  • Shape Requirements of LSAW Steel Pipe

    Date:2016-09-29      View(s):1500      Tag:lsaw pipe, lsaw steel pipe, longitudinal welded pipe

    Shape Requirements of LSAW Steel Pipe LSAW steel pipe weld appearance basic requirements: Welded joint surface requirements:...

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