SSAW Spiral Submerged Arc Welded Introduction

Introduction of SSAW Spiral submerged arc welded pipe

SSAW Spiral submerged arc welded pipe, submerged arc welding (including buried arc surfacing and electroslag welding, etc.) is an important welding method, its inherent welding quality is stable, high welding productivity, no arc and dust and so on, Making it a pressure vessel, pipe section manufacturing, box beam and other important steel structure in the production of the main welding methods.

SSAW Spiral submerged arc welded pipe

Standard Practice for "SSAW spiral submerged arc welded" GB9711.1.

Submerged arc welding (including submerged arc surfacing and electroslag welding, etc.) is an important welding method, its inherent welding quality is stable, high welding productivity, no arc and dust and so on, making it a pressure vessel, Pipe section manufacturing, box beam and other important steel structure in the production of the main welding methods. In recent years, although there have been many kinds of efficient, high-quality new welding methods, but the application of submerged arc welding is still not affected. From a variety of welding methods of the proportion of the proportion of deposited metal weight, submerged arc welding about 10%, and has been little for many years.

SSAW spiral submerged arc welded When the welding wire is determined (usually depending on the welded steel), the matching flux becomes a key material, which directly affects the mechanical properties of the weld metal (especially plasticity and low temperature toughness), crack resistance, weld defect rate And welding productivity. Wire and flux with the weight ratio of welding wire: flux = 1.1 ~ 1.6, depending on the type of welding joints, the type of flux used, welding specifications may be. Compared with the flux, the amount of sintered flux is more economical, about 20% less.