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Welding method of spiral steel pipe
Spiral pipe is a spiral seam welded pipe made of strip steel coil as raw material, extruded at regular temperature, and welded by automatic double-wire double-sided submerged arc welding process. The welding method of submerged arc automatic welding is the same as manual welding in that it still ...Read more -
Characteristics and technological process of steel pipe cold processing
Cold processing of steel pipes (such as seamless tubes) includes methods such as cold rolling, cold drawing, cold tension reduction and spinning, which are the main methods for producing precision thin-walled and high-strength pipes. Among them, cold rolling and cold drawing are commonly used hig...Read more -
Pipe Welding Procedure
Under the welded pipe from the top of the arc, from top to bottom all-position welding technique, the method of welding speed, weld appearance, good welding quality, you can save welding materials, reduce labor intensity, which is a common SMAW can not be compared and now more widely used in larg...Read more -
The weld edges heated temperature
(LSAW - Longitudinal Submerged Arc Welding), it was the same as manual welding (LSAW – Longitudinal Submerged Arc welding), which was the same as the manual welding of LSAW-Longitudinal Submerged Arc welding. The place is that it is with the mold residue, but the slag is not the coated elec...Read more -
Reasons for the rust of spiral welded pipe
Spiral welded pipes (ssaw) are stacked outdoors, and most of them are buried underground when in use, so they are easy to corrode and rust. In order to ensure the smooth flow of the pipeline, the spiral welded pipe must have strong corrosion resistance. Once the pipeline is corroded, it will caus...Read more -
How to choose seamless pipe, welded pipe and forged pipe?
When you’re first looking for steel pipe, whether for a desalination plant, an oil rig, or a nuclear power plant, the first question you need to ask yourself is “do I need seamless, welded, or forged “pipes”?” These three Each type has different benefits and is there...Read more