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公开(公告)号:US07326306B2
公开(公告)日:2008-02-05
申请号:US10489869
申请日:2002-07-22
申请人: Kazuo Ishii , Yoshihiro Odagiri , Takeshi Munemura
发明人: Kazuo Ishii , Yoshihiro Odagiri , Takeshi Munemura
IPC分类号: C23C8/26
摘要: In the present invention, after a nitriding process is performed on a steel, a passivating process in which the steel is heated under an atmosphere containing oxygen is performed. The heating condition of the passivating process is within a range surrounded by (100° C., 120 min), (100° C., 10 min), (125° C., 5 min), (190° C., 5 min), (200° C., 10 min), (200° C., 20 min), (190° C., 30 min), (190° C., 40 min), (180° C., 60 min), and (180° C., 120 min) on coordinate axes of temperature and time. In the process for production of the nitrided steel, uniform passivated layer can be easily formed, and fatigue strength is improved as pitting corrosion resistance is improved.
摘要翻译: 在本发明中,在对钢进行氮化处理之后,进行钢在含氧气氛下被加热的钝化工序。 钝化工艺的加热条件在(100℃,120分钟),(100℃,10分钟),(125℃,5分钟),(190℃,5分钟) min),(200℃,10分钟),(200℃,20分钟),(190℃,30分钟),(190℃,40分钟),(180℃, min)和(180℃,120分钟)在温度和时间的坐标轴上。 在氮化钢的制造方法中,能够容易地形成均匀的钝化层,并且随着耐点腐蚀性的提高,疲劳强度提高。
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公开(公告)号:US07204892B2
公开(公告)日:2007-04-17
申请号:US10214314
申请日:2002-08-08
申请人: Kazuo Ishii , Yoshihiro Odagiri
发明人: Kazuo Ishii , Yoshihiro Odagiri
摘要: A hoop for a CVT belt including foreign matter existing in a nitrided hardened layer and surface of the hoop, the foreign matter comprises at least one of an oxide-type foreign matter, a nitride-type foreign matter, and a carbide-type foreign matter. The oxide-type foreign matter has a particle size of 25 μm or less, the nitride-type foreign matter and/or the carbide-type foreign matter have particle sizes of 17 μm or less.
摘要翻译: 包括存在于氮化硬化层和箍表面的异物的CVT带箍,异物包括氧化物型杂质,氮化物型杂质和碳化物型杂质中的至少一种 。 氧化物型异物的粒径为25μm以下,氮化物型杂质和/或碳化物型异物的粒径为17μm以下。
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公开(公告)号:US06880401B2
公开(公告)日:2005-04-19
申请号:US10464825
申请日:2003-06-19
申请人: Kazuo Ishii , Yoshihiro Odagiri , Hitoshi Ishii
发明人: Kazuo Ishii , Yoshihiro Odagiri , Hitoshi Ishii
CPC分类号: G01N3/32 , G01N2203/0005 , G01N2203/0073 , G01N2203/0282
摘要: A fatigue test device for thin plates can reliably perform tests. The fatigue test device has a rod having ends in a longitudinal direction thereof; a vibration source for excitating a longitudinal end of the rod in the longitudinal direction thereof so as to form a standing wave having node portions and antinode portions formed therebetween and a mounting means for mounting a test piece having a longitudinal direction at one of the antinode portions, the test piece being positioned such that the longitudinal direction thereof is perpendicular to the longitudinal direction of the rod.
摘要翻译: 薄板疲劳试验装置可以可靠地进行试验。 疲劳试验装置具有沿其长度方向具有端部的杆; 用于激励杆的纵向端部的振动源,以形成具有在其间形成有节点部分和波腹部分的驻波,以及用于在其中一个波腹部分上安装具有纵向方向的试片的安装装置 所述试验片的长度方向与所述杆的长度方向垂直。
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