Competitiveness of the domestic steel ball situation and development trend analysis

 Domestic steel ball industry in the fierce competition in the market continues to develop, improve product quality, develop new potential markets and increase ball products in the international market share and competitiveness, the ball must be in specification development, design and manufacturing, technological level, Ball Specifications Quality and production equipment, etc. to be investment research. The following is a study Dongsheng Ball Ball seal material analysis report writing.
        Ball Cylindrical roller bearing mainly for the manufacture of rolling bearings rolling elements and rings. Since the bearing should have a long life, high precision, low heat, high speed, high rigidity, low noise, high wear resistance and other characteristics, thus requiring bearing steel should have: high hardness, uniform hardness, high elastic limit, high contact fatigue strength, must toughness, hardenability must be in atmospheric corrosion resistance of the lubricant. To achieve these performance requirements, the chemical composition of the bearing steel homogeneity, non-metallic inclusion content and type, size and distribution of carbides, decarburization demanding. Overall bearing steel to high-quality, high performance and multi-species direction. Bearing steel according to characteristics and application environments are divided into: high carbon chromium bearing steel, carburizing bearing steel, high temperature bearing steel, stainless steel and special bearing special bearing materials.
        Ball bearings mainly to high cleanliness and performance diversification two directions. Improve the cleanliness of bearing steel, in particular reducing the oxygen content in steel, can significantly extend the life of the bearing. Reduced oxygen content from 28ppm to 5ppm, labor life can be extended an order of magnitude. In order to extend bearing life, people over the years has been committed to the development and application of steel refining techniques to reduce the oxygen content. Unremitting efforts through the ball mill, bearing steel from the lowest oxygen content is reduced to 28ppm before now 5ppm. At present, China can be a minimum bearing steel oxygen content control in about 10ppm. Changes in the environment requires bearing bearing steel must have diverse capabilities. Such as device speed increases, the need for high temperature quasi (200 ℃ less) bearing steel (usually on the basis of the SUJ2 steel increased Si content, add V and Nb way to achieve the anti-softening and dimensional stability purposes); corrosion applications , development of stainless steel bearing; for simplifying a process, should be developed and short high-frequency quenching carburizing bearing steel, bearing steel; in order to meet the needs of the aerospace, high temperature bearing steel should be developed.