Stainless steel hollow ball manufacturers tell you how to deal with stainless steel cracks!
crack phenomenon of stainless steel composite plate and treatment methods; In the process of welding and other operations of stainless steel composite plates, improper operation of stainless steel hollow spheres can easily lead to bending cracks in stainless steel composite plates. Stainless steel composite plate for repairing welding cracks. The grinding wheel grinder can be used to eliminate cracks, reduce the hardened edge of cracks, and then carry out penetrant inspection to confirm crack elimination. Judging the crack depth, welding rod is selected for repair, such as stainless steel welding rod, carbon steel electrode and electrical isolation layer.
surface crack phenomenon of stainless steel hollow sphere; 321 stainless steel hollow spheres have the advantages of high toughness, fatigue resistance and easy welding. Stainless steel hollow spheres are widely used in hardware, shipbuilding, aerospace, machinery and other fields. 321 stainless steel hollow spheres are rolled without torsion, with clean and smooth surface and high dimensional accuracy. However, in the production process, the stainless steel plate is cracked due to the process flow and other reasons. There are three kinds of cracks: linear or serrated cracks along the rolling direction; The crack contains inclusions; Subcutaneous bubbles at the crack are exposed and oxidized. Cracks are usually caused by not treating the inclusions. When rolling stainless steel hollow spheres, inclusions in molten steel need to be cleaned. The phenomenon is usually a crack caused by surface folding.
folding occurs during rolling, and the surface of round steel presents linear or serrated cracks along the rolling direction. Reasonable deoxidation alloying process is adopted to control the oxygen content of molten steel and clean up the inclusion content in molten steel. The main reason for the subcutaneous bubble crack is that the molten steel contains a large amount of gas. When the molten steel solidifies, the gas is discharged to form bubbles, and the bubbles on the outer layer of the slab form subcutaneous bubbles, forming a honeycomb-shaped vertical arrangement, after oxidation, it cannot be welded to form cracks. It is necessary to protect the pouring process in the whole process to avoid secondary oxidation of molten steel, reduce bubble generation and improve the purity of the casting blank.