Submerged arc welding (including submerged arc surfacing and electroslag surfacing) is a method in which an arc is burned under the flux layer for welding.Its inherent welding quality is stable,welding productivity is high, there is no arc and smoke,and so on,making it the main welding method in the production of important steel structures such as pressure vessels, pipe segments, box beams and columns. In recent years, although many high-efficiency and high-quality new welding methods have appeared, the application field of submerged arc welding has not been affected. From the point of view of the weight of the deposited metal of various welding methods, submerged arc welding accounts for about 10%, and has not changed much for many years.
Spiral submerged arc welding (SSAW) steel pipes
Advantages of submerged arc welding:
High productivity
This is because, on the one hand, the conductive length of the wire is shortened, and the current and current density are increased, so that the arc penetration and the wire deposition efficiency are greatly improved.(Generally, the penetration depth of one side of the groove is up to 20mm.On the other hand, due to the heat insulation of the flux and the slag, there is almost no heat radiation on the arc, and there is less splash, although the heat loss for melting the flux is Increased, but the overall thermal efficiency is still greatly increased.
High weld quality
The slag insulation air has good protection effect, the welding parameters can be kept stable by automatic adjustment, the technical level of the welder is not high, the weld composition is stable, and the mechanical performance is better.
Good working conditions
In addition to reducing the labor intensity of manual welding operations, it has no arc radiation, which is a unique advantage of submerged arc welding.
Haihao Group manufacture & supply spiral submerged arc welded steel pipes(SSAW steel pipes),longitudinal submerged arc welded steel pipes(LSAW steel pipes) and seamless steel pipes,electric resistance welded steel pipes(ERW steel pipes),casing steel pipes,galvanized steel pipes,etc.Expect steel pipes,we also manufacture butt welding pipe fittings,forged steel pipes and forged flanges.if you want to know more about our piping products,please email us:sales@haihaogroup.com
