What is submerged arc welding?

Hello submerged arc welding (including submerged arc welding and electroslag surfacing, etc.). ) is a welding method with arc combustion under flux layer. Its inherent advantages such as stable welding quality, high welding productivity, no arc and less smoke make it the main welding method for manufacturing important steel structures such as pressure vessels, pipe sections and box beams. In recent years, although many new welding methods with high efficiency and high quality have appeared, the application field of submerged arc welding has not been affected. Judging from the weight share of deposited metal by various welding methods, submerged arc welding accounts for about 10%, which has not changed much for many years.