Bearing steel for wind power yawing and variable pitch bearing and preparation method thereof

• Main Authors: SHI YANI, LIU HUIHE, WANG YANSHAN, YANG ZHE, LI ZHAOKUN, YANG ZHINAN, WANG MINGLI, GONG JIANXUN, CHEN XIAOCHAO, YOU LEILEI, JIAO JINGMING, ZHANG ZHONGWEN, DONG HANJIE
• Format: Patent
• Language: Chinese; English
• Published: 18.05.2021
• Subjects: ALLOYS; CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; METALLURGY; METALLURGY OF IRON; PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The invention discloses bearing steel for a wind power yawing and variable pitch bearing and a preparation method thereof, and relates to the technical field of bearing manufacturing. C, Si, Mn, Cr, Mo, V and other elements are adopted for co-alloying, and the bearing steel has the advantages of high hardness, high wear resistance, high hardenability, high impact toughness and the like, can be adapted to severe working conditions of high wind speed and large impact, and compared with a traditional 42CrMo material, The bearing steel is high in hardness, good in wear resistance and deep in hardening layer, can meet the increasingly harsh technical requirements of the wind power industry and is suitable for large-scale application and popularization. 一种用于风电偏航、变桨轴承的轴承钢及其制备方法，涉及轴承制造技术领域，本发明采用C、Si、Mn、Cr、Mo、V等元素共同合金化，兼具高硬度、高耐磨性、高淬透性、高冲击韧性等优点，能适应高风速、大冲击的恶劣工况，与传统42CrMo材料相比，本发明所述轴承钢硬度高、耐磨性好、淬硬层较深，能够满足风电行业越来越苛刻的技术要求等，适合大范围的推广和应用。