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叙述了超纯轴承钢的生产工艺特点和质量水平。 10 0年来 ,轴承钢的化学成分基本未变 ,而疲劳寿命成倍提高 ,氧含量由 0 .0 0 3 %~ 0 .0 0 5 %降到 0 .0 0 0 5 %左右。中国轴承钢的年产量已达 6 0万 t以上 ,跃进了轴承钢生产大国的行列 ,基本满足了轴承行业的需要。大冶特钢采用 6 0 t DC EAF— 6 0 t L F+ VD— CC工艺生产的轴承钢 ,氧含量降到了 0 .0 0 0 93 %。
Describes the production process characteristics and quality of ultrapure bearing steel. In the past 10 years, the chemical composition of the bearing steel has remained basically unchanged while the fatigue life has been doubled. The oxygen content has decreased from 0.003% -0.050% to 0.00000%. China’s annual output of bearing steel has reached 600,000 t above, leap into the ranks of the largest producer of bearing steel, the basic bearing industry to meet the needs. Daye Special Steel using 60 t DC EAF-6 0 t L F + VD-CC production of bearing steel, the oxygen content dropped to 0.020093%.