Application of a sintered flux in UOE pipe manufacturing

摘要

Submerged arc welding is one of the main processes used in the manufacture of UOE welded pipes.It determines directly the quality of the pipes.In the submerged arc welding process,flux plays a very important role;it not only affects the performance of the weld seam but also has a significant impact on the generation and prevention of weld defects.It is important to use a sintered flux for UOE pipe production.To meet the high-quality requirements on UOE welded pipes,the flux should be chosen such that it can resist high current and high speed,and help the weld achieve low H and O contents.At the same time,storage and management of a flux also require stringent monitoring.Domestic enterprises generally use sintered fluxes for the production of welded pipes.