304 Stainless Steel Shot is a versatile metal abrasive, 304 Stainless Steel Shot contains about 18% chromium and 8% - 10% nickel. Chromium forms a dense protective film of chromium oxide on the surface of stainless steel shot, which prevents oxygen and corrosive media from further contacting the metal matrix inside. Nickel helps to stabilize the austenite structure and enhance the corrosion resistance of stainless steel.
The main uses are as follows:
First, the surface treatment field shot blasting cleaning in the foundry industry, used to clean up the casting surface of sticky sand, oxide skin and other impurities. For example, automobile engine block, wheel hub and other castings in the casting is completed, there will be some casting defects and impurities on the surface.304 stainless steel shot through the shot blasting equipment, with a high speed impact on the surface of the casting, can effectively remove these impurities, so that the surface of the casting to achieve the required degree of cleanliness and roughness, for the subsequent machining and painting and other processes to provide a good surface basis. In the forging industry, the surface cleaning of the workpiece after forging. Such as a variety of mechanical parts after forging, its surface may have oxidized skin and some defects produced in the forging process, 304 stainless steel pill shot blasting cleaning can make the surface of the workpiece smooth, while also producing a certain amount of compressive stress on the surface of the workpiece to improve the fatigue strength of the workpiece. Surface strengthening for some bear alternating loads of mechanical parts, such as springs, shaft parts, etc., 304 stainless steel shot blasting can make the surface of the parts to produce cold hardening. In the shot blasting process, the stainless steel shot repeatedly impact on the surface of the parts, so that the surface material undergoes plastic deformation, forming a layer of hardening. This hardened layer can improve the surface hardness and wear resistance of the parts, thereby extending the service life of the parts. For example, automobile suspension springs after 304 stainless steel shot peening, its fatigue resistance can be significantly improved, reducing the risk of fracture due to fatigue in the driving process. Surface finishing is used for stainless steel products, non-ferrous metal products surface finishing. For example, in the production of stainless steel tableware, kitchenware and other daily necessities, 304 stainless steel shot can be polished on its surface. Through the appropriate parameters of the shot blasting process, such as the size of the shot, the speed of the shot blasting, etc., the surface of the product can obtain a uniform luster and improve the appearance of the product quality. At the same time, in the jewelry industry, for the surface treatment of some metal ornaments, 304 stainless steel shot can also play a good role in finishing, so that the surface of the jewelry is more bright and smooth.
Second, the industrial manufacturing field to remove burrs in the metal processing process, such as stamping, cutting, drilling and other processes, the edge of the workpiece will produce burrs. 304 stainless steel shot can be removed by roller polishing, vibration polishing and other ways to remove these burrs. For example, in the production of metal shells for electronic equipment, after CNC machining of the shell edge will have some small burrs, the use of 304 stainless steel shot for polishing treatment, can make the shell edge smooth, to avoid scratching the operator or other parts in the subsequent assembly process. As an additive for composite material manufacturing in some need to enhance the material wear resistance, corrosion resistance of composite materials, 304 stainless steel shot can be used as filler material. For example, in the manufacture of some special plastic or rubber-based composites, adding the appropriate amount of 304 stainless steel shot can improve the hardness and wear resistance of the composite material. This composite material can be used to manufacture wear-resistant industrial flooring, conveyor belts and other products, which play a role in some industrial environments with high wear-resistant requirements.