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cold of steel, for cold- of steel and cold of parts

机译：钢冷，用于钢冷和零件冷

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摘要

PROBLEM TO BE SOLVED: To provide a steel for cold forging/nitriding which has excellent cold forgeability, exhibits excellent cutting chip precessability after cold-forging, and can impart high core hardness, high surface hardness and deep effective cured layer depth to a cold-forged and nitrided component.;SOLUTION: A steel for cold forging/nitriding contains, by mass, 0.10-0.15% C, ≥0.02-0.10% Si, 0.90-2.50% Mn, ≤0.030% P, ≤0.050% S, 0.80-2.0% Cr, 0.05-0.50% V, 0.01-0.07% Al, ≤0.0080% N, ≤0.0030% O, and the balance Fe with impurities. The steel has a chemical composition satisfying the following formulas: [35≤Mn/S≤200]; [20≤(669.3×log_eC-1959.6×log_eN-6983.3)×(0.067×Mo+0.147×V)≤80]; [140×Cr+125×Al+235×V≥160]; and [150≤511×C+33×Mn+56×Cu+15×Ni+36×Cr+5×Mo+134×V≤200]. In place of a part of Fe, the steel optionally contains a specific amount of at least one element selected from Mo, Cu, Ni, Ti, Nb, Zr, Pb, Ca, Bi, Te, Se and Sb.;COPYRIGHT: (C)2014,JPO&INPIT

机译：要解决的问题：提供一种冷锻/氮化钢，该钢具有出色的冷锻性，在冷锻后具有出色的切削切屑加工性，并且可以赋予冷轧机高的芯部硬度，高的表面硬度和有效的固化层深度。解决方案：用于冷锻/氮化的钢的质量含量为0.10-0.15％C，≥0.02- <0.10％Si，> 0.90-2.50％Mn，≤0.030％P，≤0.050％S ，0.80-2.0％Cr，0.05-0.50％V，0.01-0.07％Al，≤0.0080％N，≤0.0030％O以及余量的Fe和杂质。该钢的化学组成满足下式：[35≤Mn/S≤200]; [20≤（669.3×log _{e C-1959.6×log _{e N-6983.3）×（0.067×Mo + 0.147×V）≤80]; [140×Cr + 125×Al + 235×V≥160];和[150≤511×C + 33×Mn + 56×Cu + 15×Ni + 36×Cr + 5×Mo + 134×V≤200]。代替部分Fe，钢可选地包含特定量的至少一种选自Mo，Cu，Ni，Ti，Nb，Zr，Pb，Ca，Bi，Te，Se和Sb的元素;版权：（ C）2014，日本特许厅＆INPIT}}

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公开/公告号JP5761105B2

专利类型
公开/公告日2015-08-12

原文格式PDF
申请/专利权人新日鐵住金株式会社;
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申请/专利号JP20120083609
发明设计人行徳裕也;田中康介;堀本雅之;今高秀樹;
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申请日2012-04-02
分类号C22C38/00;C22C38/60;C21D8/06;C23C8/26;
国家 JP
入库时间 2022-08-21 15:32:23

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