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1. 发明申请

US20070098589A1 Non-heat treated steel for connecting rod and connecting rod formed of same 审中-公开
标题翻译：用于连杆的非热处理钢和由其组成的连杆
公开(公告)号：US20070098589A1
公开(公告)日：2007-05-03
申请号：US11585956
申请日：2006-10-25
申请人： Isseki Aihara , Yuuichi Yamada , Tomonori Miyazawa , Hideki Usuki , Yoshio Okada , Shinichiro Kato , Masakazu Hayaishi
发明人： Isseki Aihara , Yuuichi Yamada , Tomonori Miyazawa , Hideki Usuki , Yoshio Okada , Shinichiro Kato , Masakazu Hayaishi
IPC分类号： C22C38/12 , C22C38/24
CPC分类号： C22C38/02 , C22C38/002 , C22C38/04 , C22C38/24 , C22C38/60 , F16C7/02 , F16C33/121
摘要： A non-heat treated steel for hot forging and for a connecting rod, containing, in mass percent: 0.3 to 0.8% of C; 0.1 to 2.0% of Si; 0.5 to 1.5% of Mn; 0.01 to 0.15% of P; 1.0% or less of Cr; 0.4% or less of V; 0.05% or less of Al; 0.005 to 0.03% of N; and the balance Fe and inevitable impurities. The non-heat treated steel has a value E of not larger than 150, the value E being calculated from the following equation: E=2804−1549×Ceq−8862×P−23.4×H where H is a value of a Rockwell hardness of the connecting rod made of the non-heat treated steel; P is a phosphorus content (%) in the connecting rod; and Ceq is a value of a carbon equivalent.
摘要翻译：用于热锻的非热处理钢和连杆，以质量％计含有C：0.3〜0.8％ 0.1〜2.0％的Si; 0.5〜1.5％的Mn; 0.01〜0.15％P; 1.0％以下的Cr; 0.4％以下V; 0.05％以下的Al; 0.005〜0.03％的N; 余量为Fe和不可避免的杂质。未经热处理的钢的值E不大于150，则值E由下式计算：<？in-line-formula description =“In-line formula”end =“lead”？> E = 2804-1549xCeq-8862xP-23.4xH <？in-line-formula description =“In-line Formulas”end =“tail”？>其中H是由未热处理的连杆制成的洛氏硬度值钢; P是连杆中的磷含量（％）; Ceq为碳当量值。

2. 发明授权

US06649125B2 Free-cutting steel 失效
标题翻译：易切削钢
公开(公告)号：US06649125B2
公开(公告)日：2003-11-18
申请号：US10158065
申请日：2002-05-31
申请人： Masakazu Hayaishi , Yutaka Kurebayashi
发明人： Masakazu Hayaishi , Yutaka Kurebayashi
IPC分类号： C22C3860
CPC分类号： C22C38/60 , C22C38/002 , C22C38/04 , C22C38/06 , C22C38/14
摘要： Disclosed is a free-cutting steel which exhibits good machinability in turning and small roughness of the turned surfaces, and in which substantially no macro-streak-flaw occurs. The free-cutting steel contains, by weight %, C: 0.03-0.20%, Mn: 0.5-3.0%, P: 0.02-0.40%, S: more than 0.2% up to 1.0%, one or both of Ti and Zr (in case of both, the total amount): 0.01-3.0%, O: 0.0005-0.0050% and Pb: less than 0.01%, the balance being Fe and inevitable impurities. The steel is characterized in that it contains, as the inclusion therein, Ti-based and/or Zr-based carbosulfide compound or compounds. The steel may further contain at least one from the group of Bi: up to 0.4%, Se: up to 0.5% and Te: up to 0.1%.
摘要翻译：公开了一种切削钢，其在车削时具有良好的机加工性和转弯表面的粗糙度，并且其中基本上没有发生宏观条纹缺陷。切削钢以C：0.03-0.20％，Mn：0.5-3.0％，P：0.02-0.40％，S：大于0.2％至1.0％的重量％含有Ti和Zr中的一种或两种（两者均为总量）：0.01-3.0％，O：0.0005〜0.0050％，Pb：小于0.01％，余量为Fe和不可避免的杂质。钢的特征在于，其中包含Ti基和/或Zr基硫化碳化合物或其化合物。钢可以进一步含有Bi：至多0.4％，Se：至多0.5％和Te：至多0.1％中的至少一种。

3. 发明申请

US20050265886A1 Steel for machine structural use excellent in friability of chips 审中-公开
标题翻译：机械结构用钢优良的切屑脆性
公开(公告)号：US20050265886A1
公开(公告)日：2005-12-01
申请号：US10523990
申请日：2003-08-06
申请人： Masakazu Hayaishi , Takashi Kano , Noriyuki Yamada , Katsuaki Siiki
发明人： Masakazu Hayaishi , Takashi Kano , Noriyuki Yamada , Katsuaki Siiki
IPC分类号： C22C38/00 , C22C38/02 , C22C38/04 , C22C38/14 , C22C38/18 , C22C38/22 , C22C38/60
CPC分类号： C22C38/002 , C21D6/005 , C21D6/008 , C21D2211/004 , C21D2261/00 , C22C38/02 , C22C38/04 , C22C38/14 , C22C38/18 , C22C38/22 , C22C38/60
摘要： Disclosed is a free cutting steel for machine structural use having excellent chip-breakability. The steel consists essentially of, by wt. %. C: 0.05-0.8%, Si: 0.01-2.5%, Mn: 0.1-3.5%, S: 0.01-0.2%, Ca or Ca+Mg; 0.0005-0.02%, Ti: 0.002-0.010% and/or Zr: 0.002-0.025%, O: 0.0005-0.010%, and the balance of impurities and Fe. At least five MnS inclusion particles having averaged particles sizes of 1.0 μm or more exists per mm2 per 0.01% of S-content in the steel. The steel satisfies the condition that, in the microscopic fields, (area[μm2]/aspect ratio)≧10, and that the the area percentage of Ca-containing sulfide inclusions containing at least 1.0 wt. % of Ca is in the range of 15-40% of the area of all the sulfide inclusions.
摘要翻译：公开了一种机械结构用自由切削钢，具有优异的断屑性。钢基本上由（重量）％。 C：0.05-0.8％，Si：0.01-2.5％，Mn：0.1-3.5％，S：0.01-0.2％，Ca或Ca + Mg; 0.0005-0.02％，Ti：0.002-0.010％和/或Zr：0.002-0.025％，O：0.0005-0.010％，其余为杂质和Fe。在钢中每0.01％的S含量存在平均粒径为1.0μm或更大的至少五个MnS夹杂物颗粒。该钢满足以下条件：在微观领域（面积[mam] /长宽比）> = 10，并且含有至少1.0重量％的含Ca的硫化物夹杂物的面积百分比。 Ca的％在所有硫化物夹杂物的面积的15-40％的范围内。

4. 发明授权

US06773661B2 Free-cutting steel 失效
标题翻译：易切削钢
公开(公告)号：US06773661B2
公开(公告)日：2004-08-10
申请号：US10157880
申请日：2002-05-31
申请人： Masakazu Hayaishi , Yutaka Kurebayashi
发明人： Masakazu Hayaishi , Yutaka Kurebayashi
IPC分类号： C22C3814
CPC分类号： C22C38/44 , C22C38/14 , C22C38/42 , C22C38/50 , C22C38/54 , C22C38/60
摘要： Disclosed is a free-cutting steel containing Ti- and/or Zr-carbosulfide as inclusion and having good machinability both in turning and drilling. The free-cutting steel consists essentially of, in mass %, C: 0.05-0.80%, Si: 0.01-2.5%, Mn: 0.1-3.5%, Ti+0.52Zr: 0.03-1.2%, S:0.015-0.6% and the balance of Fe and inevitable impurities, and is characterized in that the contents of Ti, Zr and S meet the condition of (Ti+0.52Zr)/S
摘要翻译：公开了一种含Ti和/或Zr-碳硫化物作为夹杂物并且在车削和钻孔中具有良好机械加工性的自由切削钢。切削钢基本上以质量％计含有C：0.05-0.80％，Si：0.01-2.5％，Mn：0.1-3.5％，Ti + 0.52Zr：0.03-1.2％，S：0.015-0.6％ Fe和不可避免的杂质的平衡，其特征在于Ti，Zr和S的含量满足（Ti + 0.52Zr）/ S <2的条件。除了上述碱性合金组成之外，可以含有Ca：0.0005-0.02％和/或Mg：0.0003-0.02％的自由切削钢。后者的钢表现出更好的机械加工性。

5. 发明授权

US06764645B2 Steel for machine structural use having good machinability and chip-breakability 有权
标题翻译：机械结构用钢具有良好的机械加工性和断屑性
公开(公告)号：US06764645B2
公开(公告)日：2004-07-20
申请号：US10305064
申请日：2002-11-27
申请人： Masakazu Hayaishi , Takashi Kano , Kazuhisa Ishida , Yutaka Kurebayashi , Makoto Hobo
发明人： Masakazu Hayaishi , Takashi Kano , Kazuhisa Ishida , Yutaka Kurebayashi , Makoto Hobo
IPC分类号： C22C3814
CPC分类号： C22C38/60 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/14
摘要： Disclosed is a steel for machine structural use having good machinability and chip-breakability as well as a method of producing the steel. The steel consists essentially of, by wt. %, C: 0.05-0.8%, Si: 0.01-2.0%, Mn: 0.1-3.5%, S: 0.01-0.2%, Al: 0.001-0.020%, Ca: 0.0005-0.02%, O: 0.0005-0.01% and N: 0.001-0.04%, and further, one or both of Ti: 0.002-0.010% and Zr: 0.002-0.025%, the balance being Fe and inevitable impurities. At production of the steel controlled deoxidization is conducted by operation meeting certain conditions so that at least a certain amount of “duplex inclusion” having a specific chemical composition may be formed, and Ti and/or Zr is added to precipitate finely dispersed MnS inclusion particles with nuclei of Ti-oxide and/or Zr-oxide. The finely dispersed MnS inclusions must share a determined part of the total sulfide inclusions.
摘要翻译：公开了一种具有良好的机械加工性和断屑性的机械结构用钢以及钢的制造方法。钢基本上由（重量）％，C：0.05-0.8％，Si：0.01-2.0％，Mn：0.1-3.5％，S：0.01-0.2％，Al：0.001-0.020％，Ca：0.0005-0.02％，O：0.0005-0.01％和N：0.001-0.04％，进一步，Ti：0.002-0.010％和Zr：0.002-0.025％中的一种或两种，余量为Fe和不可避免的杂质。在钢管控制脱氧的生产中，通过满足某些条件的操作进行操作，使得可以形成至少一定量的具有特定化学组成的“双相夹杂物”，并加入Ti和/或Zr以沉淀细分散的MnS夹杂物颗粒具有Ti氧化物和/或氧化锆的核。精细分散的MnS夹杂物必须共享硫化物总含量的确定部分。

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