Processing of stainless steel pipe fittings

　　In the stainless steel pickling passivation at the same time to remove the surface of the workpiece oil, rust, welding spot, oxide, free iron and other dirt, the surface of Ss Stainless Steel Butt-Welding Crossafter treatment into a uniform silver white; at the same time add a high degree of corrosion inhibitor, Metal corrosion and hydrogen embrittlement phenomenon, inhibit the generation of acid mist. The workpiece will be heated to a predetermined temperature, a certain period of time after the slow cooling of the metal heat treatment process. The purpose of annealing is: to improve or eliminate the steel in the casting, forging, rolling and welding process caused by a variety of tissue defects and residual stress, to prevent deformation of the workpiece, cracking.  soften the workpiece for cutting. fine grain, improve the organization to improve the mechanical properties of the workpiece.  for the final heat treatment and pipe preparation for the organization.