Bearing steel ball classification:
The bearing steel ball production methods will generally include forging, rolling, semi-solid forming and casting. Because of the history and the special conditions of use and the comprehensive environment and background of the beneficiation industry, among these industries, forged and rolled bearing steel balls account for a considerable proportion.
Regarding semi-solid forming, it has the characteristics of unconventional casting, which can be explained by non-conventional die casting. The superior performance resulting from the combination of advanced technology such as cast, forging, and forging has caused to a great extent People's attention. Casting the bearing steel ball at this time will also be easy, flexible, and reliable. It will be easy to realize the expansion advantage of low-cost large-scale production to meet the sense of achievement brought by competition needs. Of course, the high cost performance and the potential for continuous development of cast bearing steel ball make it the main force in today's smashing industry, especially in the production mode of cement smashing industry steel ball.
Bearing steel ball influencing factors:
Bearing steel ball is no doubt that refers to the steel material, but the actual production, we must pay attention to the impact of material density: steel ball, cast iron ball, alloy steel ball, different material density is not the same as the bearing ball we use The density of China Steel is greater than that of cast iron, and alloy steels will appear different at different times depending on the density and content of major alloying elements.
The bearing steel ball will also be affected by this manufacturing method. For rolled and forged steel balls, the structure is denser, and at this time we must also pay attention to its own density is also relatively large, cast steel casting Balls, cast iron balls, or cast alloy balls are not dense, and even have air holes, so they are less dense.
The influence of the microstructure of the bearing steel ball: the density of martensite, austenite, bainite, ferrite and other crystal structures is not the same, and it also affects the fineness of the crystal. The bearing steel ball is also affected by the chemical composition elements. Because of the different chemical compositions such as iron, carbon, chromium, manganese, sulfur, and phosphorus in the finished steel balls, the hardness and impact wear of the steel balls have different effects.