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79 条记录 (耗时 0.038 秒)

    Crawler, crawler pin, crawler bush, and crawler manufacturing method
    31.
    发明申请
    Crawler, crawler pin, crawler bush, and crawler manufacturing method 失效

    公开(公告)号：US20070126287A1

    公开(公告)日：2007-06-07

    申请号：US11699407

    申请日：2007-01-30

    申请人： Takemori Takayama

    发明人： Takemori Takayama

    IPC分类号： B62D55/12 ,  B62D55/092

    CPC分类号： B62D55/215 ,  B62D55/211

    摘要： A crawler having a crawler pin and a crawler bush having lubrication between the crawler pin and the crawler bush without lowering the strength of the crawler at the running time, thereby to prevent the creak or seizure, as might otherwise be caused at the running time. A metallic sliding member having an excellent wear resistance can be arranged in the clearance between the crawler bush and the crawler pin. The metallic sliding member can be capable of holding lubricating oil and/or a lubricant. In addition, the clearance between the core bush and the crawler pin can be narrowed, so that the resulting structure retains the imbalance load on both the crawler bush and the crawler pin.

    Rolling element and method of producing the same
    35.
    发明申请
    Rolling element and method of producing the same 失效
    滚动元件及其制造方法

    公开(公告)号：US20060021679A1

    公开(公告)日：2006-02-02

    申请号：US11235425

    申请日：2005-09-26

    申请人： Takemori Takayama ,  Masanari Furumoto ,  Chikara Nakao ,  Noriko Morioka

    发明人： Takemori Takayama ,  Masanari Furumoto ,  Chikara Nakao ,  Noriko Morioka

    IPC分类号： C23C8/32 ,  C23C8/22

    CPC分类号： C23C8/22 ,  C21D1/10 ,  C21D1/32 ,  C21D1/78 ,  C21D7/06 ,  C21D9/32 ,  C21D2211/003 ,  C21D2211/008 ,  C23C8/32 ,  C23C8/80 ,  Y02P10/253 ,  Y10S148/906 ,  Y10S384/912

    摘要： There is provided an inexpensive rolling element used under high interface pressure such as induction hardened gears, the rolling element being improved in the seizure resistance of its tooth flanks and having a temper hardness of HRC 50 or more at 300° C. To this end, the rolling element is made from a steel material containing at least 0.45 to 1.5 wt % C and one or more alloy elements selected from 0.1 to 0.5 wt % V and 0.3 to 1.5 wt % Cr, and has a rolling contact surface layer having a structure tempered at low temperature in which 2 to 18% by volume cementite disperses in a martensite parent phase formed by induction heating and cooling and containing 0.25 to 0.8 wt % carbon solid-dissolving therein.

    摘要翻译： 提供了一种在诸如感应淬火齿轮的高界面压力下使用的便宜的滚动元件，该滚动元件在其齿面的抗咬合性方面得到提高，并且在300℃下具有HRC 50以上的回火硬度。为此， 滚动元件由含有至少0.45至1.5重量％的C和一种或多种选自0.1至0.5重量％V和0.3至1.5重量％Cr的合金元素的钢材制成，并具有具有结构的滚动接触表面层 在低温下回火，其中2〜18体积％的渗碳体分散在通过感应加热和冷却形成的马氏体母相中，并含有固溶于其中的0.25至0.8重量％的碳。

    Rolling elements
    37.
    发明申请
    Rolling elements 审中-公开
    滚动元素

    公开(公告)号：US20050247377A1

    公开(公告)日：2005-11-10

    申请号：US11154919

    申请日：2005-06-16

    申请人： Takemori Takayama ,  Naoji Hamasaka ,  Noriko Morioka

    发明人： Takemori Takayama ,  Naoji Hamasaka ,  Noriko Morioka

    IPC分类号： C21D6/00 ,  C21D9/32 ,  C22C38/00 ,  C22C38/54 ,  C22C38/58 ,  C23C8/22 ,  C23C8/80

    CPC分类号： C23C8/80 ,  C23C8/22

    摘要： The pitting resistance of a gear is increased by hardening its tooth flanks through application of carburizing/quenching, bright hardening and induction hardening to a steel material capable of providing significantly improved softening resistance in tempering at a low temperature of 300 to 350° C. To this end, the steel material prepared so as to satisfy the relationship described by: 5≦4.3×Si (wt %)+7.3×Al (wt %)+3.1×V (wt %)+1.5×Mo (wt %)+1.2×Cr (wt %)×(0.45÷C (wt %)) is carburized such that the carbon concentration of its carburized surface layer is adjusted to 0.6 to 0.9 wt %; and the steel material is subjected to quenching and tempering at 300° C. or less subsequently to the carburization process, or alternatively the steel material is once cooled after the carburization process and then subjected to treatments of re-heating hardening and tempering at 300° C. or less so that a hardness of HRC 58 or more is ensured by the tempering process at 300° C.

    摘要翻译： 通过在300〜350℃的低温下能够提供显着提高的回火的耐软化性的钢材，通过对渗碳/淬火，光亮硬化和感应淬火进行渗碳淬火来淬火其齿面来增加齿轮的耐点蚀性。 为了满足以下关系而制备的钢材：5 <= 4.3×Si（wt％）+ 7.3×Al（wt％）+ 3.1×V（wt％）+ 1.5×Mo（wt％）+ 1.2×Cr wt％）×（0.45 / C（重量％））渗碳，使其渗碳表面层的碳浓度调整为0.6〜0.9重量％ 钢材在渗碳处理后在300℃以下进行淬火回火，或者在渗碳处理后钢材一次冷却后，在300℃下进行再加热硬化回火处理 C以下，通过300℃的回火处理确保HRC58以上的硬度。

    High surface pressure resistant steel parts and methods of producing same
    39.
    发明授权
    High surface pressure resistant steel parts and methods of producing same 失效
    高表面耐压钢零件及其制造方法

    公开(公告)号：US06413328B2

    公开(公告)日：2002-07-02

    申请号：US09319999

    申请日：1999-06-16

    申请人： Takemori Takayama ,  Naoji Hamasaka

    发明人： Takemori Takayama ,  Naoji Hamasaka

    IPC分类号： C23C832

    CPC分类号： F16C33/30 ,  C23C8/28 ,  C23C8/32 ,  C23C8/34 ,  C23C8/80 ,  F16C2204/62

    摘要： High surface pressure resistant steel parts and their producing methods are disclosed. These steel parts are useful as gears, cams, bearings and similar high-strength compact steel articles which are required to have wear resistance and strength to withstand fatigue in rolling or rolling-slipping applications. In a steel part formed according to the invention, a fine nitride and/or carbonitride having at least an average grain size of 0.3 &mgr;m or less is dispersed in the contact surface structure; a multi phase structure composed of martensite, which is divided into extremely fine pieces, forming a disordered shape, by the nitride and/or carbonitride, is formed; and a carbide having a grain size of 3 &mgr;m or less is dispersed to increase the hardness of the surface. Such a steel part is produced by carrying out carbonitriding or carburization/carbonitriding so as to precipitate extremely fine AIN, using nitrogen permeating from the surface and by carrying out quenching or quenching/tempering, starting from a temperature region where the parent phase is austenite

    摘要翻译： 公开了高表面耐压钢部件及其制造方法。 这些钢部件可用作齿轮，凸轮，轴承和类似的高强度紧凑型钢制品，其需要具有耐磨性和强度以承受轧制或滚压应用中的疲劳。 在根据本发明形成的钢部件中，至少平均粒径为0.3μm或更小的细氮化物和/或碳氮化物分散在接触表面结构中; 形成由马氏体组成的多相结构，其通过氮化物和/或碳氮化物分割成极细的块，形成无序的形状; 并且分散具有3μm以下的粒径的碳化物以增加表面的硬度。 这样的钢部件是通过进行碳氮共渗或渗碳/碳氮共渗来制造的，以便从表面渗氮并通过进行淬火或淬火/回火，从母相为奥氏体的温度区域开始沉淀出极细的AIN

    Sliding contact material, sliding contact element and producing method
    40.
    发明授权
    Sliding contact material, sliding contact element and producing method 有权
    滑动接触材料，滑动接触元件及其制造方法

    公开(公告)号：US06322902B1

    公开(公告)日：2001-11-27

    申请号：US09235496

    申请日：1999-01-22

    申请人： Takemori Takayama ,  Yoshikiyo Tanaka

    发明人： Takemori Takayama ,  Yoshikiyo Tanaka

    IPC分类号： B22F704

    CPC分类号： C22C9/00 ,  B22F3/26 ,  B22F2998/10 ,  B32B15/01 ,  B32B15/015 ,  C22C9/02 ,  C22C33/0242 ,  F16C33/121 ,  F16C2204/10 ,  Y10S384/912 ,  Y10T428/12042 ,  Y10T428/1209 ,  Y10T428/1291 ,  B22F3/10

    摘要： There are disclosed copper-base and/or iron-base contact materials which contain a Pb intermetallic compound dispersedly precipitated therein and which have highly improved sliding properties. Double layered contact elements improved in oil impregnation and lubricity are formed by sinter bonding the above contact materials to an iron-base metal backing, respectively. Economical producing methods for such double layered contact materials are also disclosed. In the copper-base and/or iron-base contact materials, one or more kinds of Pb intermetallic compounds are dispersedly precipitated.

    摘要翻译： 公开了含有分散析出的Pb金属间化合物的铜基和/或铁基接触材料，并具有高度改善的滑动性能。 通过将上述接触材料分别烧结粘合到铁基金属背衬上，分别形成油浸渍和润滑性提高的双层接触元件。 还公开了这种双层接触材料的经济生产方法。 在铜基和/或铁基接触材料中，一种或多种Pb金属间化合物分散沉淀。