随着经济的发展和科学的进步,交通运输、机械设备正向高精度、高速度发展,对滚珠轴承提出了相应的要求。与此同时钢材品种和质量也要适应这种要求,采用炉外精炼和连续浇铸等措施,已使钢的质量有了很大的提高,基本上满足了机械行业发展的需要。 1 国内外滚珠轴承钢产量 With the economic development and scientific progress, transportation, machinery and equipment are moving forward with high precision and high speed, and put forward corresponding requirements on ball bearings. At the same time, the varieties and qualities of steel should also meet the requirements. The measures such as out-of-furnace refining and continuous casting have greatly improved the quality of steel and basically meet the needs of the development of the machinery industry. 1 ball bearing steel production at home and abroad