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    Steels, steel products for nitriding, nitrided steel parts
    1.
    发明授权
    Steels, steel products for nitriding, nitrided steel parts 失效
    钢，氮化钢产品，氮化钢零件

    公开(公告)号：US6083455A

    公开(公告)日：2000-07-04

    申请号：US2881

    申请日：1998-01-05

    申请人： Masato Kurita ,  Koji Watari ,  Toru Kato ,  Harunori Kakimi ,  Mitsuo Uno ,  Masanori Sakamoto ,  Yoshihiko Kamada

    发明人： Masato Kurita ,  Koji Watari ,  Toru Kato ,  Harunori Kakimi ,  Mitsuo Uno ,  Masanori Sakamoto ,  Yoshihiko Kamada

    IPC分类号： C22C38/00 ,  C22C38/04 ,  C22C38/08 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  C22C38/18 ,  C22C38/60 ,  C23C8/26 ,  C22C38/02

    CPC分类号： C23C8/26 ,  C22C38/002 ,  C22C38/04 ,  C22C38/08 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  C22C38/18 ,  C22C38/60

    摘要： The present invention relates to manufacturing methods of nitrided steel parts, having high tensile strength, high fatigue strength, and excellent bending roughness, through nitriding without thermal refining, to thus-manufactured steel parts, and to steel products for nitriding, and steels for nitriding having a specific chemical composition, serving as steel stock for the manufacture of such steel parts. The chemical composition is as follows: C: over 0.20 to 0.60%, Si: 0.05 to 1.0%, Mn: 0.20 to 1.50%, P: 0.08% or less, S: 0.005 to 0.10%, Cu: 0.30% or less, Ni: 0.30% or less, Cr: 0.30% or less, Mo: 0.30% or less, V: 0.20% or less, Nb: 0.05% or less, Ti: 0.003 to 0.03%, Al: 0.08% or less, Ca: 0.005% or less, Pb: 0.30% or less, N: 0.008 to 0.030%, and the balance of Fe and unavoidable impurities. Steel products preferably have the ferrite-pearlite microstructure having a ferrite percentage of not less than 10%. Nitrided steel parts are formed from the steel products serving as steel stock therefor, and have a nitrided case formed in the surface portion thereof.

    摘要翻译： 本发明涉及氮化钢部件的制造方法，具有高拉伸强度，高疲劳强度，优异的弯曲粗糙度，通过不进行热精炼的氮化，制造的钢部件，氮化用钢产品和氮化用钢 具有特定的化学成分，用作制造这种钢部件的钢坯。 化学成分如下：C：0.20〜0.60％，Si：0.05〜1.0％，Mn：0.20〜1.50％，P：0.08％以下，S：0.005〜0.10％，Cu：0.30％以下， Ni：0.30％以下，Cr：0.30％以下，Mo：0.30％以下，V：0.20％以下，Nb：0.05％以下，Ti：0.003〜0.03％，Al：0.08％以下，Ca ：0.005％以下，Pb：0.30％以下，N：0.008〜0.030％，余量为Fe和不可避免的杂质。 优选钢铁产品的铁素体 - 珠光体组织的铁素体比例不小于10％。 氮化钢部件由用作钢坯的钢制品形成，并且在其表面部分形成有氮化的外壳。

    Non-heat treated, soft-nitrided steel parts
    2.
    发明授权
    Non-heat treated, soft-nitrided steel parts 有权
    非热处理，软氮化钢部件

    公开(公告)号：US06391124B1

    公开(公告)日：2002-05-21

    申请号：US09698266

    申请日：2000-10-30

    申请人： Hitoshi Matsumoto ,  Yoshihiko Kamada ,  Mitsuo Uno ,  Masato Kurita ,  Seiichi Koike ,  Mitsuo Takashima

    发明人： Hitoshi Matsumoto ,  Yoshihiko Kamada ,  Mitsuo Uno ,  Masato Kurita ,  Seiichi Koike ,  Mitsuo Takashima

    IPC分类号： C23C826

    CPC分类号： C22C38/24 ,  C22C38/001 ,  C22C38/60 ,  C23C8/26 ,  F16C3/06

    摘要： A non-heat treated soft-nitrided steel part respective contents of C, Si, Mn, P, Cr, Ti, V, N, Al, Pb, S and Ca of which are in specific ranges and which satisfies the following formulas (1) to (3). This part can be produced in a process of hot working, machining and soft-nitriding without any prior heat treatment, and has superior properties such as high fatigue strength and wear resistance. Fn1=−141.5(C %)−19.6(Mn %)+1280(N %)+95.6≦60  (1) Fn2=−103.8(C %)+59.1(Mn %)+850.4(N %)+360.9≧350  (2) Fn3=−13.4(C %)−3.45(Mn %)+112.7(N %)+13.2≧7  (3)

    摘要翻译： C，Si，Mn，P，Cr，Ti，V，N，Al，Pb，S和Ca的不含热处理软氮化物部分的含量在特定范围内，满足下式（1 ）至（3）。 该部件可以在没有任何热处理的情况下在热加工，机加工和软氮化的过程中生产，并且具有优异的性能，例如高疲劳强度和耐磨性。

    Forged, non-heat treated, nitrided steel parts and process of making
    3.
    发明授权
    Forged, non-heat treated, nitrided steel parts and process of making 失效
    锻造，非热处理，氮化钢部件和制造工艺

    公开(公告)号：US5985044A

    公开(公告)日：1999-11-16

    申请号：US886538

    申请日：1997-07-01

    申请人： Masato Kurita ,  Harunori Kakimi

    发明人： Masato Kurita ,  Harunori Kakimi

    IPC分类号： C22C38/00 ,  C22C38/04 ,  C22C38/38 ,  C22C38/60 ,  C23C8/02 ,  C23C8/24 ,  C21D1/06 ,  C23C8/20 ,  C23C8/50

    CPC分类号： C23C8/02 ,  C22C38/001 ,  C22C38/002 ,  C22C38/04 ,  C23C8/24

    摘要： Forged, nitrided steel parts having a high fatigue limit and bending toughness are produced without heat treatment for refining between the forging and nitriding. The steel has a composition consisting essentially, on a weight basis, of: 0.30-0.60% of C, 0.05-1.50% of Si, 0.20-2.00% of Mn, less than 0.02% of P, less than 0.04% of S, not greater than 0.30% of Cr, less than 0.01% of Al, 0.01-0.02% of N, and a balance of Fe and incidental impurities in which the content of V as an impurity is 0.02% or less. The steel composition may further contain at least one element selected from P: 0.02-0.07%, S: 0.04-0.10%, Ca: 0.0003-0.003%, and Pb: 0.01-0.20% in order to provide it with improved machinability.

    摘要翻译： 制造具有高疲劳极限和弯曲韧性的氮化钢部件，而不进行锻造和氮化之间的精炼的热处理。 该钢的组成基本上以重量为基准计：C：0.30-0.60％，Si：0.05-1.50％，Mn：0.20-2.00％，P：0.02％以下，S：0.04％以下， 不大于0.30％的Cr，小于0.01％的Al，0.01-0.02％的N，以及作为杂质的V含量为0.02％以下的Fe和杂质的余量。 钢组合物可以进一步含有选自P：0.02-0.07％，S：0.04-0.10％，Ca：0.0003-0.003％和Pb：0.01-0.20％中的至少一种元素，以提供改进的机械加工性。

    CRACK-PROPAGATION PREDICTION METHOD AND PROGRAM
    4.
    发明申请
    CRACK-PROPAGATION PREDICTION METHOD AND PROGRAM 有权
    裂缝传播预测方法和程序

    公开(公告)号：US20100116062A1

    公开(公告)日：2010-05-13

    申请号：US12530394

    申请日：2008-07-24

    申请人： Yoichi Sato ,  Koichi Morimura ,  Shinichiro Hori ,  Shintaro Kumano ,  Takanori Karato ,  Masato Kurita

    发明人： Yoichi Sato ,  Koichi Morimura ,  Shinichiro Hori ,  Shintaro Kumano ,  Takanori Karato ,  Masato Kurita

    IPC分类号： G01N19/08

    CPC分类号： G01N3/00 ,  G01M5/0016 ,  G01M5/0033 ,  G01N2203/0062 ,  G01N2203/0064 ,  G01N2203/0066 ,  G01N2203/0218

    摘要： The precision of crack-propagation prediction is improved by taking into consideration a variation in the error due to inspectors and inspection methods. There is provided a crack-propagation prediction method including a correlation-information preparing step of measuring the length of a crack initiated in a test object by a plurality of inspectors and/or a plurality of inspection methods and obtaining correlation information between data acquired through the measurement and the condition of an actual crack; a crack-length estimating step of estimating the actual length of the crack initiated in an inspection target on the basis of the crack length measured by an inspector during inspection of the inspection target and the correlation information; and a crack-propagation-curve estimating step of estimating a crack-propagation curve of the inspection target originating from the crack length estimated in the crack-length estimating step.

    摘要翻译： 通过考虑到由于检查人员和检查方法导致的误差的变化，提高了裂纹扩展预测的精度。 提供了一种裂纹扩展预测方法，包括：相关信息准备步骤，通过多个检查者和/或多个检查方法测量在测试对象中发起的裂纹的长度，并获得通过 测量和实际裂纹的状况; 裂纹长度估计步骤，基于在检查对象的检查期间由检查员测量的裂纹长度和相关信息，估计检查对象中发生的裂纹的实际长度; 以及裂纹扩展曲线估计步骤，用于估计由裂纹长度估计步骤中估计的裂缝长度产生的检测对象的裂纹扩展曲线。

    Polishing apparatus
    6.
    发明授权
    Polishing apparatus 有权
    抛光设备

    公开(公告)号：US06634924B1

    公开(公告)日：2003-10-21

    申请号：US09669883

    申请日：2000-09-27

    申请人： Koji Ono ,  Shozo Oguri ,  Kenichi Sasabe ,  Masato Kurita ,  Yasuhisa Kojima ,  Tadanori Egawa ,  Kenichi Shigeta

    发明人： Koji Ono ,  Shozo Oguri ,  Kenichi Sasabe ,  Masato Kurita ,  Yasuhisa Kojima ,  Tadanori Egawa ,  Kenichi Shigeta

    IPC分类号： B24B4900

    CPC分类号： B24B37/0053 ,  B24B37/04 ,  B24B49/10 ,  B24B49/16

    摘要： Disclosed is a polishing apparatus that comprises a polishing tool, a substrate holding member, a measuring device to measure a drive current of a drive unit while the drive unit drives at least one of the polishing tool and the substrate holding member, and a failure detection unit to detect either jumping of the substrate from the substrate member or breakage of the substrate. While a substrate is held by a substrate holding member and pressed against the polishing tool during a polishing operation, the failure detection unit will detect jumping of the substrate from the substrate holding member or breakage of the substrate based on a comparison of the value of the drive current with a threshold value, or a comparison of a waveform pattern of the drive current with a predetermined waveform pattern.

    摘要翻译： 公开了一种抛光装置，其包括抛光工具，基板保持部件，测量装置，用于在驱动单元驱动至少一个抛光工具和基板保持部件时测量驱动单元的驱动电流，以及故障检测 单元以检测基板从基板构件的跳跃或基板的断裂。 当在衬底保持构件中保持衬底并且在抛光操作期间被压靠在抛光工具上时，故障检测单元将基于对衬底保持构件的值的比较来检测衬底从衬底保持构件的跳跃或衬底的断裂 具有阈值的驱动电流或驱动电流的波形图案与预定波形图案的比较。

    Crack-propagation prediction method and program
    7.
    发明授权
    Crack-propagation prediction method and program 有权
    裂纹传播预测方法和程序

    公开(公告)号：US08109150B2

    公开(公告)日：2012-02-07

    申请号：US12530394

    申请日：2008-07-24

    申请人： Yoichi Sato ,  Koichi Morimura ,  Shinichiro Hori ,  Shintaro Kumano ,  Takanori Karato ,  Masato Kurita

    发明人： Yoichi Sato ,  Koichi Morimura ,  Shinichiro Hori ,  Shintaro Kumano ,  Takanori Karato ,  Masato Kurita

    IPC分类号： G01B5/28 ,  G06F19/00 ,  G01N29/04 ,  G01N19/08

    CPC分类号： G01N3/00 ,  G01M5/0016 ,  G01M5/0033 ,  G01N2203/0062 ,  G01N2203/0064 ,  G01N2203/0066 ,  G01N2203/0218

    摘要： The precision of crack-propagation prediction is improved by taking into consideration a variation in the error due to inspectors and inspection methods. There is provided a crack-propagation prediction method including a correlation-information preparing step of measuring the length of a crack initiated in a test object by a plurality of inspectors and/or a plurality of inspection methods and obtaining correlation information between data acquired through the measurement and the condition of an actual crack; a crack-length estimating step of estimating the actual length of the crack initiated in an inspection target on the basis of the crack length measured by an inspector during inspection of the inspection target and the correlation information; and a crack-propagation-curve estimating step of estimating a crack-propagation curve of the inspection target originating from the crack length estimated in the crack-length estimating step.

    摘要翻译： 通过考虑到由于检查人员和检查方法导致的误差的变化，提高了裂纹扩展预测的精度。 提供了一种裂纹扩展预测方法，包括：相关信息准备步骤，通过多个检查者和/或多个检查方法测量在测试对象中发起的裂纹的长度，并获得通过 测量和实际裂纹的状况; 裂纹长度估计步骤，基于在检查对象的检查期间由检查员测量的裂纹长度和相关信息，估计检查对象中发生的裂纹的实际长度; 以及裂纹扩展曲线估计步骤，用于估计由裂纹长度估计步骤中估计的裂缝长度产生的检测对象的裂纹扩展曲线。