Date:2016-10-07 View(s):2433 Tag:seamess pipe, seamless steel pipe, seamless cabron steel pipe
Pipe coupling according to the pipe end can be divided into: light pipe (pipe end without threads) and threading pipe (pipe end threaded)....
Date:2016-10-06 View(s):2483 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):3074 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):2578 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):2578 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):2898 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):3473 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):2793 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):2574 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:...
Date:2016-09-28 View(s):2388 Tag:seamless pipe, seamless steel pipe, seamless pipe production process
Notes of Seamless Steel Pipe Production Process Equipment Points...
Date:2016-09-27 View(s):2192 Tag:seamless pipe, seamless steel pipe, seamless product
Classfication of seamless steel pipe by application ...
Date:2016-09-26 View(s):2493 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). ...
Date:2016-09-25 View(s):2616 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....
Date:2016-09-24 View(s):2882 Tag:seamless pipe, seamless steel pipe, seamless pipe anti-dumping investigation
September 9, 2016, the European Commision issued a notice that they restart anti-dumping investigation for the origin of seamless steel pipe from China....
Date:2016-09-23 View(s):2631 Tag:pipe flange, slip on flange, slip-on flange
The calculated strength from a Slip On flange under internal pressure is of the order of two-thirds that of Welding Neck flanges, and their life under fatigue is about one-third that of the latter....