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CN108239697A 轴承部件、滚动轴承和制造它们的方法 无效 - 撤回

轴承部件、滚动轴承和制造它们的方法
摘要：
均为轴承部件的外环(11)、内环(12)和滚珠(13)由淬火硬化钢制成，该钢包含不少于0.90％质量百分比且不超过1.05％质量百分比的碳、不少于0.15％质量百分比且不超过0.35％质量百分比的硅、不少于0.01％质量百分比且不超过0.50％质量百分比的锰、以及不少于1.30％质量百分比且不超过1.65％质量百分比的铬，剩余部分由杂质组成。所述轴承部件与另一个部件的接触表面(11A,12A,13A)具有不少于0.25％质量百分比的氮浓度。在接触表面中剩余奥氏体的量不少于6％体积百分比且不超过12％体积百分比。
摘要（英）：

An outer ring (11), an inner ring (12), and a ball (13), each of which is a bearing part, are made of a quench-hardened steel containing not less than 0.90 mass % and not more than 1.05 mass % of carbon, not less than 0.15 mass % and not more than 0.35 mass % of silicon, not less than 0.01 mass % and not more than 0.50 mass % of manganese, and not less than 1.30 mass % and not more than 1.65 mass% of chromium with the rest consisting of an impurity. A contact surface (11A, 12A, 13A) thereof with another part has a nitrogen concentration of not less than 0.25 mass %. A remaining austenite amount in the contact surface is not less than 6 volume % and not more than 12 volume %.

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