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/*728*90 created on 2018/5/16*/ var cpro_id = "u3440131"; Home>Bearing knowledge>Features of bearing reinforcement appearance (1) Features of bearing strengthened appearance (1)
Although various types of external reinforcement methods have different characteristics, they all have different functions to change the appearance of bearing operations; especially in the improvement of bearing wear, wear resistance, corrosion resistance and anti-touch fatigue functions. The aspect received a more satisfactory role. /*250*250 was created on 2017/12/25*/ var cpro_id = 'u3171089';
1. Progressive wear resistance and wear resistance are the primary functional indicators of bearing data. In the case of different types of wear; the factors affecting the wear resistance of the data are different.
(1) Wear-resistant grain wear function The steel used for the bearing is mostly quench-hardened steel. It has been proved that there is a linear relationship between the wear resistance of the data and the hardness of the data under the condition of abrasive wear. Hour; hardness can be used as a basis for judging the wear resistance of the data. When the impact load is large enough; in addition to high hardness, it is necessary to consider the influence of strength and resistance on wear resistance. For high carbon chromium bearing steel; The composition, type, shape, size, quantity and dispersion of the carbides have an effect on the wear resistance; during this period, the matrix carbon mass fraction and the amount of carbide have the greatest influence. In the appearance of strengthening skills; sometimes it is the use of progressive appearance Carbon mass fraction or the formation of diffusely dispersed high hardness compounds improves surface wear resistance, such as carburizing and surface desalination of bearing parts.
(2) Bearing parts with high-impact resistance to wear and tear; in the case of insufficient smoothness or smooth failure; metal straight touch is most likely to constitute adhesive wear. A useful method to prevent or reduce adhesive wear is thick film smoothness; Make the conflict do not touch. Perhaps change the physical and chemical characteristics of the touch surface; make it less prone to sticking. Some bearing parts are treated with external phosphating or blue; make the metal surface form a layer of compound; prevent direct touch between metals It can be usefully reduced or even prevented from adhering and wearing. If external surface nitriding, boronizing, TiC and ion implantation are used, the surface hardness is improved and it is difficult to yield; it is also useful for reducing adhesion and wear. If sulfur-nitrogen osmosis is used Sulfur-nitrocarburon has a role in the adhesion between the falling matching data and the hardness of the added surface; thus, the effect on reducing the adhesion wear is significant.
(3) Resistant to the appearance of fatigue wear and wear. Touch fatigue wear is a common wear failure mode of bearings. The metallurgical quality and heat treatment quality of steel have a great influence on the fatigue wear resistance function; after selecting the leading exercise skills and appropriate The heat treatment method can be improved. The test proves that it is within the certain hardness range; the appearance of the external surface hardness can also improve the wear resistance of the data.
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Features of bearing strengthened appearance (1)
Source: Bearing network time: 2012-12-29