1. The arc starting of stainless steel pipe fittings adopts the reflow method, and the arc ending adopts the method of full arc crater. The over-weighing of arc starting should be completed in the slope, and arcing and arc starting cannot be performed on the surface of the pipeline and pipe fittings. Cracks, pores, etc. are found during the arcing process and should be cleaned up in time.
2. When lifting stainless steel pipe fittings, they should be separated from other metals to avoid direct contact. It can be isolated by non-metallic materials such as padded wood boards and rubber boards.
3. During continuous welding of stainless steel pipe fittings, the temperature should not exceed 60 degrees Celsius. During tack welding, the inner side of the weld should be filled with argon for protection. When cutting, ordinary grinding wheels cannot be used for cutting, and special grinding wheels for stainless steel pipe fittings or plasma cutting should be used.
4. When stainless steel pipe fittings are connected to non-stainless steel pipes and pipe fittings, the pipe, and cavity should be filled with argon gas before the welded butt joint is grounded, and then argon tungsten arc welding can be performed. The welds at the connection joints shall be pickled and passivated after welding.
Post time: Feb-06-2023