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  • Line Pipe Plate Production

    Date:2016-10-10      View(s):936      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):1052      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):893      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):918      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):1224      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):924      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):963      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):1061      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):1053      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):974      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):921      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:...

  • Notes of Seamless Steel Pipe Production Process Equipment Points

    Date:2016-09-28      View(s):833      Tag:seamless pipe, seamless steel pipe, seamless pipe production process

    Notes of Seamless Steel Pipe Production Process Equipment Points​​...

  • Cold Welding

    Date:2016-09-26      View(s):974      Tag:cold welding, cold welding pipe

    Cold welding is the application of mechanical force, molecular force or power to make welding material diffusion to the surface of a process equipment (method). ...

  • ERW Pipe Production Process and Rolling Groove Processing Principle

    Date:2016-09-25      View(s):969      Tag:erw pipe, erw steel pipe, electric resistance welded pipe

    At present, ordinary fluid on the market with the general Longitudinal Welded Pipe is generally used in high-frequency resistance welding production....

  • Pipe Surface Roughness

    Date:2016-09-09      View(s):1030      Tag:pipe surface, pipe surface roughness

    Pipe surface roughness mainly in the following aspects:...

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