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1. 发明授权

US06464803B1 Stainless steel for brake disc excellent in resistance to temper softening 有权
标题翻译：制动盘不锈钢耐回火软化性能优异
公开(公告)号：US06464803B1
公开(公告)日：2002-10-15
申请号：US09652191
申请日：2000-08-31
申请人： Masayuki Tendo , Masao Kikuchi , Toshio Tanoue , Kiyoshi Yamaji
发明人： Masayuki Tendo , Masao Kikuchi , Toshio Tanoue , Kiyoshi Yamaji
IPC分类号： C22C3818
CPC分类号： C22C38/58 , C21D6/002 , C22C38/001 , C22C38/42 , C22C38/44 , C22C38/48
摘要： Brake disc produced by a hot-rolled stainless steel excellent in resistance to temper softening, characterized in that: said steel contains, in terms of wt %, C: 0.01 to 0.1%, N: 0.03% or less, C+N: 0.04 to 0.1%, Si: 1% or less, Mn: 20 or less, Ni: less than 0.5%, Cr: 10 to 15%, and Nb: 0.02% to 0.5%, with the balance Fe and unavoidable impurities; that the hardness after quenching heat treatment is in the range of 30 to 40 HRC; and that the temper softening temperature for lowering the hardness to below 30 HRC is at least 530° C. Further, it is desirable to add at least one of the following elements; 0.1 to 2% of Cu, 0.1 to 1% of Mo, 0.01 to 0.5% of Ti, 0.01 to 0.5% of V or 0.0005 to 0.01% of B, and to make the value of &ggr;p calculated from steel chemical composition at least 70%.
摘要翻译：耐回火软化性优异的热轧不锈钢制造的制动盘，其特征在于：所述钢以重量％计含有C：0.01〜0.1％，N：0.03％以下，C + N：0.04 至0.1％，Si：1％以下，Mn：20以下，Ni：小于0.5％，Cr：10〜15％，Nb：0.02〜0.5％，余量为Fe和不可避免的杂质。淬火热处理后的硬度在30〜40HRC的范围内; 并且用于将硬度降低到低于30HRC的回火软化温度为至少530℃。此外，期望添加以下元素中的至少一种; 0.1〜2％的Cu，0.1〜1％的Mo，0.01〜0.5％的Ti，0.01〜0.5％的V或0.0005〜0.01％的B，由钢的化学组成计算得到的Gammap值至少为70 ％。

2. 发明授权

US5979614A Brake disc produced from martensitic stainless steel and process for producing same 失效
标题翻译：由马氏体不锈钢制成的制动盘及其制造方法
公开(公告)号：US5979614A
公开(公告)日：1999-11-09
申请号：US938002
申请日：1997-09-24
申请人： Akihiko Takahashi , Kiyoshi Yamaji , Toshio Tanoue
发明人： Akihiko Takahashi , Kiyoshi Yamaji , Toshio Tanoue
IPC分类号： C21D1/18 , C22C38/42 , F16D65/12 , F16D69/02 , C22C38/40
CPC分类号： C22C38/42 , F16D65/125 , F16D69/027 , C21D1/18
摘要： A brake disc capable of being used in an as quenched state, excellent in rusting resistance, toughness and resistance to softening resulting from heat generation caused by braking, and preferably useful as a brake disc for a two-wheeled vehicle, which is produced from a martensitic stainless steel comprising 0.02 to 0.10% of C, up to 0.03% of N, up to 0.05% of Si, 0.5 to 1.5% of Mn, up to 0.5% of Ni, 10 to 15% of Cr, 0.5 to 2.5% of Cu, up to 0.1% of Al and the balance substantially Fe and unavoidable impurities provided that the amount of C+N is from 0.05 to 0.1% and .gamma.p is at least 90, and a process for producing the same.
摘要翻译：一种能够以淬火状态使用的制动盘，由制动引起的发热产生的耐生锈性，韧性和耐软化性优异，优选用作两轮车辆的制动盘，其由包含C：0.02〜0.10％，N：0.03％以下，Si：0.5〜1.5％，Ni：0.5％以下，Cr：10〜15％，Cr：0.5〜2.5％的Cu，高达0.1％的Al，余量基本上为Fe和不可避免的杂质，条件是C + N的量为0.05至0.1％，γp为至少90，以及其制备方法。

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