专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2002309318A PRODUCTION METHOD OF GEAR 失效
公开(公告)号：JP2002309318A
公开(公告)日：2002-10-23
申请号：JP2001117525
申请日：2001-04-16
申请人： DAIDO STEEL CO LTD , JATCO LTD , NISSAN MOTOR
发明人： ITO JUICHI , YOSHIDA MAKOTO , USUKI HIDEKI , HAYASHI TAKAO
IPC分类号： B24C1/10 , C21D1/06 , C21D9/32 , C22C38/00 , C22C38/18 , C22C38/32 , F16H55/06
摘要： PROBLEM TO BE SOLVED: To provide a production method of a gear by which damage of a tooth surface of a gear such as pitting, scoring and spalling can be prevented, and the gear with excellent facial fatigue strength. SOLUTION: A steel stock having a composition containing 0.10 to 0.30% C, 0.05 to 0.80% Si, 0.20 to 1.50% Mn, 0.85 to 3.00% Cr, 0.010 to 0.040% Al and 0.005 to 0.030% N, and, if required, further containing at least one kind selected from 0.05 to 0.70% Mo, 0.05 to 0.50% V and 0.05 to 0.70% W, and, if required, further containing at least one kind selected from 0.0005 to 0.005% B, 0.01 to 0.10% Nb and 0.01 to 0.10% Ti, and the balance substantially Fe is subjected to hyper-eutectoid carburizing, hardening and tempering treatment. After that, the tooth surface is ground, and further, shot peening is performed thereto.

2. 发明专利

JP2006152330A Machine structural member and shaft obtained by using the same 有权
标题翻译：机械结构件和使用它的轴
公开(公告)号：JP2006152330A
公开(公告)日：2006-06-15
申请号：JP2004341469
申请日：2004-11-26
申请人： Daido Steel Co Ltd , Nissan Motor Co Ltd , 大同特殊鋼株式会社 , 日産自動車株式会社
发明人： HAYASHI TAKAO , USUKI HIDEKI , HONDA MASATOSHI
IPC分类号： C22C38/00 , B24C1/10 , C21D1/06 , C21D6/00 , C21D7/06 , C21D9/28 , C22C38/38 , C22C38/60 , F16C3/02
摘要： PROBLEM TO BE SOLVED: To provide a machine structural member, compared with a carburized member which has been used heretofore, having no remarkable increase of a component cost, having excellent producibility, and having excellent twisting fatigue strength, and to provide a shaft obtained by using the same.
SOLUTION: The machine structural member is composed of a steel having a composition comprising 0.10 to 0.30% C, ≤1.00% Si, 0.30 to 1.70% Mn, ≤0.015% P, ≤0.020% S, 0.10 to 1.60% Cr, 0.10 to 1.00% Mo, 0.0005 to 0.0030% B, ≤0.03% N and ≤0.04% Al, and further comprising 0.010 to 0.200% Nb and/or 0.010 to 0.100% Ti, and in which the effective depth (standard hardness: 513 HV) of a hardened layer is controlled to 1.0 to 2.5% to the thickness of the member. The shaft is obtained by using the machine structural member.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供一种机械结构构件，与迄今为止使用的渗碳构件相比，组分成本没有显着增加，具有优异的生产能力和优异的扭转疲劳强度，并且提供一种轴通过使用它得到。解决方案：机械构件由具有0.10〜0.30％C，≤1.00％Si，0.30〜1.70％Mn，≤0.015％P，≤0.020％S，0.10〜1.60％Cr，，0.10〜1.00％的Mo，0.0005〜0.0030％的B，≤0.03％的N和≤0.04％的Al，还含有0.010〜0.200％的Nb和/或0.010〜0.100％的Ti，其中有效深度（标准硬度： 513 HV）相对于构件的厚度被控制为1.0〜2.5％。通过使用机械结构件获得轴。版权所有（C）2006，JPO＆NCIPI

3. 发明专利

JPH1060588A NON-HEAT TREATED CRANKSHAFT STEEL FOR HOT FORGING 失效
公开(公告)号：JPH1060588A
公开(公告)日：1998-03-03
申请号：JP22946296
申请日：1996-08-13
申请人： DAIDO STEEL CO LTD , NISSAN MOTOR
发明人： KATSUTA TOSHIAKI , INABA HIDEAKI , SAWACHIKA YASUAKI , USUKI HIDEKI , MURAKAMI YOICHI , ITAKURA KOJI
IPC分类号： C22C38/00 , C22C38/44 , C22C38/60
摘要： PROBLEM TO BE SOLVED: To provide an inexpensive non-heat treated crankshaft steel for hot forging, capable of being formed into a mixed structure of ferrite and pearlite in an air-cooled state after hot forging. SOLUTION: This steel has a composition consisting of, by weight, 0.37-0.43% C, 0.15-0.35% Si, 0.60-0.90% Mn, =0.66%.

4. 发明专利

JP2007119819A Non-heat treated steel for connecting rod, and connecting rod 审中-公开
标题翻译：用于连接杆和连接杆的非热处理钢
公开(公告)号：JP2007119819A
公开(公告)日：2007-05-17
申请号：JP2005311365
申请日：2005-10-26
申请人： Daido Steel Co Ltd , Nissan Motor Co Ltd , 大同特殊鋼株式会社 , 日産自動車株式会社
发明人： AIHARA KAZUISHI , YAMADA YUICHI , MIYAZAWA TOMONORI , USUKI HIDEKI , OKADA YOSHIO , KATO SHINICHIRO , HAYAISHI MASAKAZU
IPC分类号： C22C38/00 , C21D9/00 , C22C38/34 , C22C38/60 , F16C7/02
CPC分类号： C22C38/02 , C22C38/002 , C22C38/04 , C22C38/24 , C22C38/60 , F16C7/02 , F16C33/121
摘要： PROBLEM TO BE SOLVED: To provide non-heat treated steel for connecting rod by which machinability and proof stress can be secured and which is suited to separation by fracturing and also to provide a connecting rod made of the steel.
SOLUTION: The connecting rod has a composition containing 0.3 to 0.8% C, 0.1 to 2.0% Si, 0.5 to 1.5% Mn, 0.01 to 0.15% P, ≤1.0% Cr, ≤0.4% V, ≤0.05% Al and 0.005 to 0.03% N. In this connecting rod, a value, which is computed from hardness (HRC), P content (%) and carbon equivalent Ceq (represented by Ceq=C+0.166Si+0.22Mn+0.25Cr+1.8V) based on [2804-1549×Ceq+8862×P(%)-23.4×hardness(HRC)], is made to ≤150.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了提供用于连杆的非热处理钢，其可以确保可加工性和抗应力，并且适合于通过压裂分离，并且还提供由钢制成的连杆。
解决方案：连杆具有含有0.3〜0.8％C，0.1〜2.0％Si，0.5〜1.5％Mn，0.01〜0.15％P，≤1.0％Cr，≤0.4％V，≤0.05％Al 和0.005〜0.03％N。在该连杆中，由硬度（HRC），P含量（％）和碳当量Ceq（由Ceq = C + 0.166Si + 0.22Mn + 0.25Cr + 1.8 基于[2804-1549×Ceq + 8862×P（％）-23.4×硬度（HRC）]的比例V）为≤150。版权所有（C）2007，JPO＆INPIT

5. 发明专利

JPH10168540A PRODUCTION OF NON-HEAT TREATED STEEL FOR CONNECTING ROD AND CONNECTING ROD 失效
公开(公告)号：JPH10168540A
公开(公告)日：1998-06-23
申请号：JP33127396
申请日：1996-12-11
申请人： DAIDO STEEL CO LTD , NISSAN MOTOR
发明人： INOUE KOICHIRO , NAKAMURA SADAYUKI , YAMAGUCHI TAKUO , ITAKURA KOJI , USUKI HIDEKI
IPC分类号： F16C7/00 , C22C38/00 , C22C38/24 , C22C38/60
摘要： PROBLEM TO BE SOLVED: To recover the proportional limit (proof stress) and fatigue strength, deteriorated by cold coining after hot forging, by means of artificial aging and natural aging under a service environment and to provide a connecting rod having proportional limit (proof stress) and fatigue strength both higher than those before coining. SOLUTION: A non-heat treated steel, having a composition consisting of 0.20-0.50% C, 0.05-1.00% Si, 0.10-1.50% Mn, 0.10-1.00% Cr, 0.10-0..50% V, 0.010-0.025% N, further one or >=2 kinds among

6. 发明专利

JPH1036937A INDUCTION-HARDENED PARTS 失效
公开(公告)号：JPH1036937A
公开(公告)日：1998-02-10
申请号：JP20762496
申请日：1996-07-19
申请人： DAIDO STEEL CO LTD , NISSAN MOTOR
发明人： KUREBAYASHI YUTAKA , MATSUMURA KOJI , NAKAMURA SADAYUKI , USUKI HIDEKI , KAMATA YASUSHI
IPC分类号： F16C3/02 , C21D9/28 , C22C38/00 , C22C38/14 , C22C38/60
摘要： PROBLEM TO BE SOLVED: To provide an induction-hardened parts securing a static strength of automotive power transmission system parts such as axle shafts, drive shafts, outer races for equal velocity joints or the like and furthermore excellent in impact bendability and impact twisting resistance. SOLUTION: This parts is the one having a compsn. contg., by weight, 0.30 to 0.60% C, =50HRC, furthermore having a uniform martensitic structure in which the rate of martensite in the induction- hardened structure is regulated to >=90%, and in which the ratio of hardening depth (t), i.e., (effective hardening depth)/r (the parts radius or parts thickness) is regulated to 0.2 to 0.7.

7. 发明专利

JP2005036257A Carburized gear with excellent impact fatigue strength, and its manufacturing method 有权
标题翻译：具有优异的冲击疲劳强度的加固齿轮及其制造方法
公开(公告)号：JP2005036257A
公开(公告)日：2005-02-10
申请号：JP2003198034
申请日：2003-07-16
申请人： Daido Steel Co Ltd , Nissan Motor Co Ltd , 大同特殊鋼株式会社 , 日産自動車株式会社
发明人： INOUE KEISUKE , HAYASHI TAKAO , USUKI HIDEKI , MIURA NAOMI
IPC分类号： F16H55/06 , C21D1/06 , C21D9/32 , C22C38/00 , C22C38/06 , C22C38/60
摘要： PROBLEM TO BE SOLVED: To provide a carburized gear composed of case-hardening steel and having remarkably improved impact strength and impact fatigue strength and also to provide its manufacturing method.
SOLUTION: A case-hardening steel having an alloy composition consisting of, by mass, 0.1 to 0.3% C, ≤1.0% Si, 0.3 to 1.7% Mn, ≤0.005% Al, ≤0.010% N, ≤0.03% P, ≤0.035% S and the balance essentially Fe is formed into a gear shape and carburized. By properly selecting carburizing conditions in addition to the alloy composition, the structure of a root is formed into a rather coarse structure of JIS austenite grain size No. 4 to 6.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供由表面硬化钢构成的渗碳齿轮，并且具有显着提高的冲击强度和冲击疲劳强度，并且还提供其制造方法。＆lt; P＆gt;解决方案：具有以质量计0.1〜0.3％的C，≤1.0％的Si，0.3〜1.7％的Mn，≤0.005％的Al，≤0.010％的N，≤0.03％的合金组成的表面硬化钢， P，≤0.035％S，余量基本上Fe形成齿轮形状并渗碳。通过适当地选择合金组成以外的渗碳条件，根部的结构形成为相当粗糙的JIS奥氏体晶粒尺寸No.4〜6的结构。版权所有（C）2005，JPO＆NCIPI

8. 发明专利

JP2003096539A CASE HARDENING STEEL, AND CARBURIZED PART USING THE SAME 审中-公开
公开(公告)号：JP2003096539A
公开(公告)日：2003-04-03
申请号：JP2002075624
申请日：2002-03-19
申请人： DAIDO STEEL CO LTD , NISSAN MOTOR
发明人： HANIYUDA TOMONORI , NAKAMURA TAKESHI , HONDA MASATOSHI , KUREBAYASHI YUTAKA , HAYASHI TAKAO , USUKI HIDEKI , MIURA NAOMI , MURAKAMI YOICHI
IPC分类号： C22C38/00 , C22C38/04 , C22C38/12 , C22C38/18 , C22C38/22 , C22C38/26 , C22C38/32 , C22C38/60 , C23C8/22 , C23C8/38 , C23C8/46 , C23C8/66
摘要： PROBLEM TO BE SOLVED: To provide a case hardening steel which has no remarkable increase in material cost and working cost compared with the conventionally used case hardening steel, and has excellent cold forgeability and impact strength, and to provide carburized parts obtained by using the steel. SOLUTION: The case hardening steel has a composition containing 0.1 to 0.3% C, >0.3 to 1.0% or

9. 发明专利

JPH10140284A WARM FORGING STEEL EXCELLENT IN INDUCTION HARDENABILITY AND MACHINABILITY, INDUCTION HARDENED PARTS USING THIS STEEL, AND PRODUCTION OF THE INDUCTION HARDENED PARTS 失效
公开(公告)号：JPH10140284A
公开(公告)日：1998-05-26
申请号：JP31123996
申请日：1996-11-08
申请人： DAIDO STEEL CO LTD , NISSAN MOTOR
发明人： KUREBAYASHI YUTAKA , KINAMI TOSHIYA , NAKAMURA SADAYUKI , KAMATA YASUSHI , USUKI HIDEKI
IPC分类号： C21D8/00 , C22C38/00 , C22C38/04 , C22C38/32 , C22C38/54 , C22C38/60
摘要： PROBLEM TO BE SOLVED: To obtain a warm forging steel having a superior machinability and induction hardenability in an as-warm-forged state and further having a high strength, high toughness, and excellent wear resistance while obviating the necessity of intermediate heat treatment, such as normalizing, after warm forging, by regulating the amounts of solid solution elements, such as C, Si, and Mn, to values in specific ranges, decreasing deformation resistance at the time of warm forging, and reducing hardness after forging and cooling. SOLUTION: A steel, having a composition which consists of, by weight, 0.30-0.60% C,

10. 发明专利

JP2006009877A gear 审中-公开
标题翻译：齿轮
公开(公告)号：JP2006009877A
公开(公告)日：2006-01-12
申请号：JP2004185762
申请日：2004-06-24
申请人： Nissan Motor Co Ltd , 日産自動車株式会社
发明人： KOGANEZAWA TAIICHI , HAYASHI TAKAO , USUKI HIDEKI
IPC分类号： F16H55/06 , C22C38/00 , C22C38/22
摘要： PROBLEM TO BE SOLVED: To provide a gear optimizing retained austenite amount on the gear surface and the maximum value and position of residual compression stress and having fatigue strength substantially excellent compared to conventional carburized gears. SOLUTION: Retained austenite amount at depths of 25 to 100 μm from the gear surface, in particular the surface of a round portion between the dedendum to tooth bottom is 15 to 25 vol.% and retained austenite amount at depths of 100 to 300 μm from the surface is 15 to 20 vol.%. The peak position of the residual compression stress is set to be within the range of the surface to 100 μm and exceed 1,000 MPa. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供齿轮优化齿轮表面的残余奥氏体量和残余压缩应力的最大值和位置，并且具有与常规渗碳齿轮相比基本上优异的疲劳强度的齿轮。解决方案：齿轮表面的深度为25〜100μm的残留奥氏体量，特别是齿顶齿轮之间的圆形表面为15〜25体积％，深度为100〜100的残留奥氏体量表面300μm为15〜20体积％。残余压缩应力的峰值位置设定在表面至100μm的范围内且超过1000MPa。版权所有（C）2006，JPO＆NCIPI

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式