Date:2016-10-16 View(s):1949 Tag:seamless pipe, seamless steel pipe
How to bond the thermal expansion seamless steel pipe :...
Date:2016-10-15 View(s):1843 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. ...
Date:2016-10-13 View(s):1941 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. ...
Date:2016-10-12 View(s):1943 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. ...
Date:2016-10-10 View(s):1850 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....
Date:2016-10-09 View(s):1997 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. ...
Date:2016-10-08 View(s):1750 Tag:straight seam steel pipe, straighti seam welded pipe
Tips of Improving Straight Seam Steel Pipe Surface Wall Thickness...
Date:2016-10-06 View(s):1888 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. ...
Date:2016-10-05 View(s):2315 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....
Date:2016-10-04 View(s):1899 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. ...
Date:2016-10-03 View(s):1968 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....
Date:2016-10-02 View(s):2081 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....
Date:2016-10-01 View(s):2684 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....
Date:2016-09-30 View(s):2034 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....
Date:2016-09-29 View(s):1888 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:...