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1. 发明申请

US20110000583A1 Rolling part and manufacturing method thereof 审中-公开
标题翻译：滚动部件及其制造方法
公开(公告)号：US20110000583A1
公开(公告)日：2011-01-06
申请号：US12736089
申请日：2009-03-09
申请人： Katsuhiko Kizawa , Tomoaki Nishikawa , Takeshi Udagawa
发明人： Katsuhiko Kizawa , Tomoaki Nishikawa , Takeshi Udagawa
IPC分类号： C23C8/32 , C23C8/02 , B32B15/04
CPC分类号： C23C8/32 , C21D1/32 , C21D5/00 , C21D6/002 , C21D9/40 , C21D2211/004 , C22C38/02 , C22C38/04 , C22C38/18 , F16C33/30 , F16C33/64 , F16C2204/66
摘要： A rolling part formed by performing spheroidizing annealing, processing, carbonitriding and finishing on a steel material containing C in an amount of 0.90 mass % to 1.10 mass %, Si in an amount of more than 0.35% and up to 0.70%, Mn in an amount of less than 0.80 mass %, Cr in an amount of 1.85 mass % to 2.50 mass %, O in an amount of 12 ppm or less, and the balance of Fe and unavoidable impurities. The mean C amount on a surface is from 1.20 mass % to 1.50 mass %, and the mean N amount is from 0.10 mass % to 0.60 mass %. Deposits having a particle size of 0.1 μm or more on the surface have a mean particle size of 0.6 μm or less, exist as 700,000 particles or more per mm2, and have an area ratio of 10% or more. The amount of retained austenite of the surface is from 25% to 45% by volume ratio. The hardness of the surface is Hv 750 or more. The inside of the rolling part has an amount of retained austenite of 20% or less by volume ratio.
摘要翻译：在含有0.90质量％至1.10质量％的C的钢材上进行球化退火，加工，碳氮共渗和精加工而形成的轧制部，大于0.35％且高达0.70％的Si，小于0.80质量％的Cr，1.85质量％〜2.50质量％的Cr，12ppm以下的O，余量的Fe和不可避免的杂质。表面上的平均C量为1.20质量％至1.50质量％，平均N量为0.10质量％至0.60质量％。表面上具有0.1μm以上的粒径的沉积物的平均粒径为0.6μm以下，以每mm 2为700,000个以上的粒子存在，面积比为10％以上。表面残余奥氏体的量为25〜45体积％。表面的硬度为Hv 750以上。轧制部的内部具有20体积％以下的残留奥氏体的量。

2. 发明申请

US20080047633A1 Rolling-Sliding Elements and Process for Production of the Same 审中-公开
标题翻译：滚动元件及其制造方法
公开(公告)号：US20080047633A1
公开(公告)日：2008-02-28
申请号：US11722756
申请日：2005-12-22
申请人： Katsuhiko Kizawa , Tsuyoshi Mikami , Tomoaki Nishikawa , Terumoto Fujiwara
发明人： Katsuhiko Kizawa , Tsuyoshi Mikami , Tomoaki Nishikawa , Terumoto Fujiwara
IPC分类号： C23C8/22 , F16C19/00
CPC分类号： C23C8/02 , C23C8/22 , C23C8/80 , F16C33/14 , F16C33/64 , F16C2223/12
摘要： The invention provides a rolling-sliding part which can attain more prolonged service lives even when used in rolling bearings which are exposed to contaminated lubricating oil. Rolling-sliding parts are made of steel which contains C: 0.7 to 0.9 wt. %, Si: 0.05 to 0.7 wt. %, Mn: 0.05 to 0.7 wt. %, Cr: 3.2 to 5.0 wt. %, Al: 0.04 wt. % or less, P: 0.03 wt. % or less, S: 0.03 wt. % or less, Ti: 0.005 wt. % or less, O: 0.0015 wt. % or less, at least one of Mo: less than 1.0 wt. % and V: less than 0.50 wt. %, and Fe and unavoidable impurities: balance, and which has a carburized layer in the surface. The precipitated carbide content of the layer is adjusted to 9 to 30% in terms of area ratio. At least 50% of the precipitated carbides present in the layer are of M7C3-type and/or M23C6-type in terms of area ratio. The average particle size of the carbides present in the layer is adjusted to 0.2 to 0.4 μm and the residual austenite content of the layer is adjusted to 35 to 60%.
摘要翻译：本发明提供一种滚动滑动部件，即使在暴露于受污染的润滑油的滚动轴承中使用时，其也可以获得更长的使用寿命。滚动部件由含有C：0.7〜0.9重量％的钢制成。％，Si：0.05〜0.7wt。％，Mn：0.05〜0.7wt。％，Cr：3.2〜5.0wt。％，Al：0.04wt。％以下，P：0.03重量％％以下，S：0.03重量％％以下，Ti：0.005重量％％以下，O：0.0015重量％％以下，Mo：小于1.0重量％中的至少一种。％和V：小于0.50wt。％，Fe和不可避免的杂质：平衡，并且其表面具有渗碳层。将该层析出的碳化物含量以面积比计为9〜30％。存在于层中的至少50％的沉淀碳化物为M 7 N 3 +和/或M 23 C 13。 6＆gt;型面积比。将层中存在的碳化物的平均粒径调整为0.2〜0.4μm，将该层的残留奥氏体含量调整为35〜60％。

3. 发明申请

US20080060465A1 Vibration Damping Member For Machine Part And Method Of Manufacturing The Same 审中-公开
标题翻译：机械零件振动阻尼件及其制造方法
公开(公告)号：US20080060465A1
公开(公告)日：2008-03-13
申请号：US11661674
申请日：2005-09-01
申请人： Tomoaki Nishikawa , Tatsuo Tanaka , Yukio Ito
发明人： Tomoaki Nishikawa , Tatsuo Tanaka , Yukio Ito
IPC分类号： F16H55/14 , F16F15/02
CPC分类号： F16H55/14 , F16F1/02 , F16H2055/366 , Y10T74/19907 , Y10T428/12
摘要： A damping material for mechanical parts includes a non-coupling interface that comes into contact without being metallically coupled. The non-coupling interface is formed from the surface to a predetermined internal depth, and may assume a non-penetrative structure. In such circumstances, it is preferable that a depth of the non-coupling interface be equal to, or greater than 20% of a dimensional thickness in the same direction. The non-coupling interface may be formed so as to penetrate from one surface to another surface. The damping material for mechanical parts is a gear damping material for forming a gear having damping characteristics, and has: a main body portion formed in a ring shape or in a disk shape; and a predetermined portion to form teeth shape provided at the outer periphery side face or at the inner periphery side face. The non-coupling interface is formed from at least one end face in an axial direction of the main body portion.
摘要翻译：用于机械部件的阻尼材料包括在不进行金属耦合的情况下接触的非耦合接口。非耦合接口从表面形成到预定的内部深度，并且可以呈现非穿透性结构。在这种情况下，非耦合界面的深度优选等于或大于相同方向的尺寸厚度的20％。非耦合接口可以形成为从一个表面穿透到另一个表面。用于机械部件的阻尼材料是用于形成具有阻尼特性的齿轮的齿轮阻尼材料，并且具有：形成为环形或圆盘形状的主体部; 以及形成设置在外周侧面或内周侧面的齿形状的规定部。非耦合接口由主体部分的轴向方向上的至少一个端面形成。

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