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1. 发明专利

JP2005154784A Bearing steel excellent in corrosion resistance 有权
标题翻译：轴承钢在耐腐蚀性方面优秀
公开(公告)号：JP2005154784A
公开(公告)日：2005-06-16
申请号：JP2003382604
申请日：2003-11-12
申请人： Daido Steel Co Ltd , Koyo Seiko Co Ltd , 光洋精工株式会社 , 大同特殊鋼株式会社
发明人： KINAMI TOSHIYA , KIMURA TOSHIMITSU , NISHISAKA HISATO , GOTO MASAO
IPC分类号： C22C38/00 , C22C38/50
摘要： PROBLEM TO BE SOLVED: To provide bearing steel which is excellent in corrosion resistance, and rolling fatigue life even when adapted for bearings etc., of rolling mills.
SOLUTION: The bearing steel has a composition containing, by weight %, 0.10 to 0.3 C, ≤0.5 Si, 0.2 to 1.5 of Mn, ≤0.03 P, ≤0.03 S, 1.0 to 3.5 Ni, 1.0 to 5.0 Cr, 0.03 to 2.5 Mo, 0.005 to 0.050 Al, ≤0.003 Ti, ≤0.0015 O, ≤0.025 N, and substantially the balance Fe, wherein after carburizing or carbonitriding treatment, a surface C concentration is ≥0.7%, the content of the carbide is ≤15% by area and the content of the rod-like carbide 10 having an aspect ratio expressed by the ratio of major diameter to minor diameter of ≥3 and having a minor diameter of ≥2 μm is ≤0.1%.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供耐磨性优异的轴承钢，以及即使在适用于轴承等的轧机中的滚动疲劳寿命。解决方案：轴承钢具有以重量％计含有0.10〜0.3C，≤0.5Si，0.2〜1.5的Mn，≤0.03P，≤0.03S，1.0〜3.5Ni，1.0〜5.0Cr， 0.03〜2.5Mo，0.005〜0.050％Al，≤0.003Ti，≤0.0015O，≤0.025N，实质上为Fe，其中，渗碳或碳氮共渗处理后，表面C浓度≥0.7％，碳化物含量为 ≤15％的面积，由长径比小于3的长径比≥3μm而长径比≥2μm的棒状碳化物10的含量≤0.1％。版权所有（C）2005，JPO＆NCIPI

2. 发明专利

JP2004270888A Mechanical component made from precipitation hardening stainless steel, its manufacturing method and rolling bearing 审中-公开
公开(公告)号：JP2004270888A
公开(公告)日：2004-09-30
申请号：JP2003065599
申请日：2003-03-11
申请人： Koyo Seiko Co Ltd , 光洋精工株式会社
发明人： NISHISAKA HISATO
IPC分类号： B24B39/04 , B21J5/00 , B21K1/05 , F16C33/62 , F16C33/64
摘要： PROBLEM TO BE SOLVED: To provide a mechanical component of long life and its manufacturing method capable of equalizing the structure in the surface of component made from precipitation hardening type stainless steel and exhibiting the mechanical characteristic stably. SOLUTION: The surface of an inner ring of the rolling bearing is worked by a working ratio of not less than 9, and the fluctuation of hardness on the surface is kept within Hv 50. COPYRIGHT: (C)2004,JPO&NCIPI

3. 发明专利

JP2004315890A Steel having excellent rolling fatigue life, and its production method 有权
公开(公告)号：JP2004315890A
公开(公告)日：2004-11-11
申请号：JP2003111560
申请日：2003-04-16
申请人： Jfe Steel Kk , Jfeスチール株式会社 , Koyo Seiko Co Ltd , 光洋精工株式会社
发明人： IWAMOTO TAKASHI , MATSUZAKI AKIHIRO , ONO KAZUHIKO , GOTO MASAO , HARADA HISASHI , NISHISAKA HISATO
IPC分类号： F16C33/32 , C21D1/18 , C21D1/32 , C21D6/00 , C21D8/06 , C22C38/00 , C22C38/38 , C22C38/58 , F16C33/30 , F16C33/34 , F16C33/62
CPC分类号： C22C38/22 , C21D1/18 , C21D6/002 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/60 , F16C33/30 , F16C33/62 , Y10S148/906 , Y10S384/912
摘要： PROBLEM TO BE SOLVED: To provide a steel which has an excellent rolling fatigue life to prolong further the life of bearings even under the using condition severer than the conventional case, and to provide its production method.
SOLUTION: The steel is obtained by successively subjecting a steel stock comprising, by mass, 0.7 to 1.1% C, 0.2 to 2.0% Si, 0.4 to 2.5% Mn, 1.6 to 4.0% Cr, 0.1 to

4. 发明专利

DE112017000898T5 Wälz-Gleit-Bauteil, Wälzlager, das dasselbe benutzt und Verfahren zur Herstellung des Wälz-Gleit-Bauteils 未知
公开(公告)号：DE112017000898T5
公开(公告)日：2018-10-25
申请号：DE112017000898
申请日：2017-02-15
申请人： DAIDO STEEL CO LTD , JTEKT CORP
发明人： INAZAKI NAO , FURUKAWA FUMIHIRO , KAWASAKI KANJI , NISHISAKA HISATO , HATTORI TOMOYA , KITAMURA KAZUHISA , KUSAFUKA YUSUKE , HINOSHITA KEITA , TAKABAYASHI HIROYUKI , ISHIDA KAZUHISA
IPC分类号： C22C38/00 , C21D1/76 , C21D9/40 , C22C38/54 , C22C38/60 , C23F1/00 , F16C19/06 , F16C33/62 , F16C33/64
摘要： Die vorliegende Erfindung stellt ein Wälz-Gleit-Bauteil bereit, das eine hohe Härte hat und weitergeführt eine zuverlässige Passivierungsschicht hat, auch nachdem es einem Prozess ausgesetzt ist, der irgendein Prozess von Zunder etc. nicht fordert, als auch ein Wälzlager, dass das gleiche benutzt, und ein Verfahren zur Herstellung des Wälz-Gleit-Bauteils.

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