Bearing surface treatment on the performance

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The bearing parts work surface and center in the state, structure, and performance requirements are large differences in the overall heat treatment is often not take into account the potential of the material and does not make. Applied Materials, surfac e hardening technology not only can be used to resolve the differences in the structure and requirements of the surface and center, but also further to the surface to get some special work performance to meet the performance of work under certain conditions bearing on the work surface requirements. This is very meaningful in the development of modern science and technology. Traditional surface hardening methods, process belongs to the category of the heat treatment. Modern laser, electron beam, ion beam surface hardening method developed, not only some high-tech applied to the surface of the material to strengthen, and in the process has been beyond the traditional areas of heat treatment, the formation of a new technology. Surface now strengthen the technology from different angles to form a variety of classification, physical and chemical processes to classify surface strengthening technology can be broadly divided into five categories: surface deformation strengthening, s urface heat treatment, chemical heat treatment, surface metallurgical strengthening strengthening of the surface film.high-speed bearings
So that the metal surface layer is plastically deformed by a mechanical method, to thereby form a hardened layer of high hardness and high strength, such surface strengthening method is called surface deformation strengthening, also known as work hardening. Including shot blasting, sandblasting, cold extrusion, rolling, cold mill and the impact of the explosion shock. These methods are characterized by: strengthening layer dislocation density increased, the subgrain structure refinement, and thus its hardness and strength, the surface roughness is reduced, can significantly improve the sensitivity of the parts of the surface fatigue strength and reduce fatigue notch. This intensive method is simple, the effect is significant, there is no clear boundaries between the hardened layer and substrate, coherent structure, not easy to fall off in use. Most of its methods have been applied in the bearing industry: the rolling surface impact strengthen is the application of such methods, precision RCC has become the new ferrule processing and enhancement.china bearing supplier