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1. 发明专利

JP2009079253A Shaft and manufacturing method therefor 有权
标题翻译：其制造方法及其制造方法
公开(公告)号：JP2009079253A
公开(公告)日：2009-04-16
申请号：JP2007249028
申请日：2007-09-26
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： KOYANAGI KOJI , MIURA NAOMI , HAYASHI TAKAO , OKADA YOSHIO , ARAKI SHINICHI , MIYAZAKI TAKAHIRO , INAGAKI HIDETOSHI
IPC分类号： C22C38/00 , C21D1/06 , C21D1/46 , C21D9/28 , C22C38/24 , C22C38/60
摘要： PROBLEM TO BE SOLVED: To provide a high-strength shaft which has adequate impact-bending resistance, and besides, adequate abrasion resistance and seizure resistance, and to provide a manufacturing method therefor. SOLUTION: This manufacturing method includes the steps of: preparing a steel material composed of, by mass ratio, 0.15% to 0.60% C, 0.2% or less Si, 0.10% to 0.70% Mn, 0.03% or less P, 0.03% or less S, 0.1% to 1.6% Cr, 0.6% to 1.5% Mo, 0.05% to 0.40% V and the balance Fe with unavoidable impurities; quenching the steel material at 880°C or higher; and subjecting it to nitrocarburizing treatment in a salt-bath or nitrocarburizing treatment by gas at 550 to 650°C. Thus obtained shaft has an internal hardness of 400 Hv or more and a hardness of 600 Hv or more at the position of 0.05 mm deep from its surface; and has a nitride layer with a thickness of 25 μm or less formed on the surface. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供具有足够的抗冲击性的高强度轴，并且具有足够的耐磨性和耐咬合性，并提供其制造方法。解决方案：该制造方法包括以下步骤：制备以质量比计，0.15％至0.60％C，0.2％或更少的Si，0.10％至0.70％的Mn，0.03％以下的P， 0.03％以下的S，0.1〜1.6％的Cr，0.6〜1.5％的Mo，0.05〜0.40％的V，余量为Fe和不可避免的杂质; 在880℃以上淬火钢材; 并在550〜650℃下通过气体在盐浴或氮碳共渗处理中进行氮碳共渗处理。这样得到的轴的表面的深度为0.05mm以上的内部硬度为400Hv以上，硬度为600Hv以上。并且在表面上形成有厚度为25μm以下的氮化物层。版权所有（C）2009，JPO＆INPIT

2. 发明专利

JP2005069004A Oil pump 审中-公开
标题翻译：油泵
公开(公告)号：JP2005069004A
公开(公告)日：2005-03-17
申请号：JP2003208133
申请日：2003-08-21
申请人： Nissan Motor Co Ltd , 日産自動車株式会社
发明人： MIURA NAOMI , MABUCHI YUTAKA , HAYASHI TAKAO
IPC分类号： F04C2/10 , C10M129/70 , C10M129/74 , C10M129/76 , C10M133/04 , C10M133/06 , C10M133/08 , C10M133/16 , C10M133/46 , C10M169/04 , C10N30/06 , C10N40/02 , F04C15/00
摘要： PROBLEM TO BE SOLVED: To reduce friction of a sliding contact part of a side surface of each gear and an inner surface of a housing.
SOLUTION: This oil pump is provided with an outer gear 1 and an inner gear 2 composed of sintered metal base material, and a housing 3 composed of cast iron or aluminum casting base material and storing the both gear therein. And side surfaces 1a, 1b, 2a, 2b of the both gears and inner surfaces of the housing 3 slidingly contact under lubrication. Hard carbon coating is formed on sliding contact surface of at least one of the outer gear 1, the inner gear 2 and the housing 3 to make hardness of a sliding contact part surface sufficiently high. Consequently, scuffing resistance and wear resistance are improved and friction is greatly reduced.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：减少每个齿轮的侧面的滑动接触部分和壳体的内表面的摩擦。解决方案：该油泵设置有外齿轮1和由烧结金属基材构成的内齿轮2和由铸铁或铝铸造基材构成的壳体3，并将两齿轮存储在其中。两齿轮的侧面1a，1b，2a，2b和壳体3的内表面在润滑下滑动接触。在外齿轮1，内齿轮2和壳体3中的至少一个的滑动接触表面上形成硬碳涂层，使得滑动接触部表面的硬度足够高。因此，耐擦伤性和耐磨性得到改善，摩擦力大大降低。版权所有（C）2005，JPO＆NCIPI

3. 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

4. 发明专利

JP2007152402A Aluminum die-cast part and method for manufacturing aluminum die-cast part 审中-公开
标题翻译：铝制铸件部件和制造铝合金部件的方法
公开(公告)号：JP2007152402A
公开(公告)日：2007-06-21
申请号：JP2005351857
申请日：2005-12-06
申请人： Nissan Motor Co Ltd , 日産自動車株式会社
发明人： HAYASHI TAKAO , MIURA NAOMI , KIKUCHI KAZUMASA , OKADA YOSHIO
IPC分类号： B22D17/00 , B22D29/00 , B24C1/10
摘要： PROBLEM TO BE SOLVED: To provide an aluminum die-cast part and a method for manufacturing the aluminum die-cast part with which the fatigue-strength on the surface of a treated material can drastically be improved.
SOLUTION: In the aluminum die-cast part applying a shot-peening treatment for injecting the shot particles, a fatigue-strength index (FI) shown with the formula (1), (FI)=HC/(RS
2 ×DS), is 2-40. In the formula, HC is the cast surface hardness (Hv) as it is cast with the die-casting; RS is the cast surface roughness Ra(μm) after shot-peening treatment; and DS is the grain diameter (mm) of the shot particles.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种铝压铸部件和用于制造铝压铸部件的方法，可以显着提高处理材料表面的疲劳强度。解决方案：在用压射射击颗粒进行喷丸处理的铝压铸件中，用式（1），（FI）表示的疲劳强度指数（FI）= HC /（RS 2 ×DS），为2-40。在配方中，HC是铸造时铸造的铸造表面硬度（Hv）; RS是喷丸处理后的铸造表面粗糙度Ra（μm） DS是粒子粒径（mm）。版权所有（C）2007，JPO＆INPIT

5. 发明专利

JP2007092102A Case-hardening steel and carburizing part using the same (especially differential gear) 审中-公开
标题翻译：使用其的硬化钢和加固部分（特殊差速器）
公开(公告)号：JP2007092102A
公开(公告)日：2007-04-12
申请号：JP2005280838
申请日：2005-09-27
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： MIURA NAOMI , HAYASHI TAKAO , OKADA YOSHIO , MIYAZAKI TAKAHIRO , HATTORI ATSUSHI , KANO TAKASHI
IPC分类号： C22C38/00 , C21D1/06 , C21D6/00 , C21D9/32 , C22C38/32 , C23C8/22 , F16H55/06
摘要： PROBLEM TO BE SOLVED: To provide a case-hardening steel provided with excellent impact fatigue strength and a carburized part using the same (especially a differential gear). SOLUTION: This case-hardening steel is composed, by mass, of 0.10-0.30% C, ≤0.10% Si, 0.3-0.85% Mn, 0.002-0.015% P, ≤0.015% S, 0.30-0.65% Cr, 0.10-1.00% Mo, 0.0005-0.0035% B, 0.015-0.100% Nb, 0.01-0.1% Al and the balance Fe with inevitable impurities, and satisfies the formula (1); 2.0≤10Si(%)+Cr(%)+Mn(%)+Mo(%)≤30. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供具有优异的冲击疲劳强度的表面硬化钢和使用其的渗碳部件（特别是差速齿轮）。 <硬质钢>该硬质合金钢按质量计含有0.10〜0.30％的C，≤0.10％的Si，0.3-0.85％的Mn，0.002-0.015％的P，≤0.015％的S，0.30-0.65％的Cr ，0.10-1.00％Mo，0.0005-0.0035％B，0.015-0.100％Nb，0.01-0.1％Al，余量为Fe和不可避免的杂质，并满足式（1）; 2.0≤10Si（％）+的Cr（％）+的Mn（％）+的Mo（％）≤30。版权所有（C）2007，JPO＆INPIT

6. 发明专利

JP2005024034A Differential unit 有权
标题翻译：差异单位
公开(公告)号：JP2005024034A
公开(公告)日：2005-01-27
申请号：JP2003191780
申请日：2003-07-04
申请人： Nissan Motor Co Ltd , 日産自動車株式会社
发明人： MIURA NAOMI , HAYASHI TAKAO , MABUCHI YUTAKA , HAMADA TAKAHIRO
IPC分类号： F16H48/08 , C10M101/02 , C10M129/76 , C10M133/06 , C10M133/56 , C10M137/10 , C10M139/00 , C10M149/14 , C10M169/04 , C10N10/04 , C10N30/06 , C10N40/04 , C10N60/14 , F16H48/38 , F16H48/40 , F16H57/04 , F16H57/02
CPC分类号： F16H57/041 , F16H57/0483
摘要： PROBLEM TO BE SOLVED: To reduce friction on a sliding contact portion of a differential unit. SOLUTION: The differential unit has a hard carbon thin film formed on at least one of sliding contact faces 1a, 2a, and 3a at a portion where a side gear 2 as a differential gear, and a differential pinion 3 keep into sliding contact with a differential case 1 under existence of lubricant. A scarfing-resistant property and a wear-resistant property are improved by sufficiently heightening hardness of the sliding contact faces 1a, 2a, and 3a, and friction on these contact faces is considerably reduced. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：减少差速单元的滑动接触部分的摩擦。解决方案：差速单元具有形成在作为差速齿轮的侧齿轮2和差动小齿轮3保持滑动的部分的滑动接触面1a，2a和3a中的至少一个上的硬碳薄膜在存在润滑剂的情况下与差速器壳体1接触。通过充分提高滑动接触面1a，2a，3a的硬度，可以提高耐剥离性和耐磨性，从而显着地降低了这些接触面的摩擦。版权所有（C）2005，JPO＆NCIPI

7. 发明专利

JP2005024033A Gear system 有权
标题翻译：齿轮系统
公开(公告)号：JP2005024033A
公开(公告)日：2005-01-27
申请号：JP2003191779
申请日：2003-07-04
申请人： Nissan Motor Co Ltd , 日産自動車株式会社
发明人： MIURA NAOMI , HAYASHI TAKAO , MABUCHI YUTAKA , HAMADA TAKAHIRO
IPC分类号： F16H48/08 , C10M129/70 , C10M129/74 , C10M129/76 , C10M133/04 , C10M133/08 , C10M133/16 , C10M133/46 , C10M133/56 , C10M137/10 , C10M139/00 , C10M169/04 , C10N10/04 , C10N30/06 , C10N40/04 , F16H55/17 , F16H57/035 , F16H57/04 , F16H57/02
CPC分类号： F16H2048/085
摘要： PROBLEM TO BE SOLVED: To reduce friction on mutual sliding contact portions in a gear system having a shaft which rotatably maintains gears.
SOLUTION: A differential pinion 3 as a gear and a mate shaft 5 which is a shaft rotatably maintaining the differential pinion are brought into slidable contact with each other under existence of lubricant in a gear system. A hard carbon thin film 20 is formed on at least one of sliding contact faces 13a and 15a of the differential pinion 3 and the mate shaft 5. Thus, the hardness of the sliding contact faces 13a and 15a is high enough, a scarfing-resistant property and a wear-resistant property are improved, and friction on these contact faces is considerably reduced.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：减少具有可旋转地保持齿轮的轴的齿轮系中的相互滑动接触部分的摩擦。解决方案：作为齿轮的差动小齿轮3和可旋转地保持差动小齿轮的轴的配合轴5在齿轮系中存在润滑剂的情况下彼此滑动接触。在差速器小齿轮3和配合轴5的滑动接触面13a，15a的至少一个上形成有硬质碳薄膜20.因此，滑动接触面13a，15a的硬度足够高，耐剥落性能和耐磨性提高，并且这些接触面上的摩擦力显着降低。版权所有（C）2005，JPO＆NCIPI

8. 发明专利

JP2006046478A High strength differential case 审中-公开
标题翻译：高强度差异案例
公开(公告)号：JP2006046478A
公开(公告)日：2006-02-16
申请号：JP2004227606
申请日：2004-08-04
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： MIURA NAOMI , HAYASHI TAKAO , TAKADA KATSUNORI , KUREBAYASHI YUTAKA , KATO SHINICHIRO , NAKAJIMA TOMOYUKI
IPC分类号： C22C38/00 , C22C38/46 , C22C38/60 , F16H57/037 , F16H57/038 , F16H57/039
摘要： PROBLEM TO BE SOLVED: To provide a high strength differential case that can reduce the weight and size of a part more than a casting article and omit the thermal refining more than the casting/thermal refining article.
SOLUTION: It is the high strength differential case that is formed by forging the non thermally refined steel to contain the specified quantity of C, Si, Mn, P, S, Cu, Ni, Cr, Mo and V and satisfy the carbon equivalent Ceq in a regular range. The non thermally refined steel contains furthermore the specified quantity of Nb and Ti. Furthermore the specified quantity of Ca and O is contained. Furthermore the specified quantity of Pb and Bi is contained. 10
5 times of the fatigue strength of a flange part is more than 1.5 times to the FCD700 casting article.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供一种高于铸造制品的高强度差速器壳体，其能够减少部件的重量和尺寸，并且比铸造/热精炼制品省略热精炼。
解决方案：通过锻造非热精炼钢含有规定量的C，Si，Mn，P，S，Cu，Ni，Cr，Mo和V形成的高强度差速器箱，满足碳当量Ceq在正常范围内。非热精炼钢还含有规定量的Nb和Ti。此外，还含有规定量的Ca和O。此外，还含有规定量的Pb和Bi。法兰部分的疲劳强度的10次 5次/次以上是FCD700铸件的1.5倍以上。版权所有（C）2006，JPO＆NCIPI

9. 发明专利

JP2005069248A Belt-type continuously variable transmission 有权
标题翻译：带式连续可变传动
公开(公告)号：JP2005069248A
公开(公告)日：2005-03-17
申请号：JP2003208284
申请日：2003-08-21
申请人： Nissan Motor Co Ltd , 日産自動車株式会社
发明人： MIURA NAOMI , MABUCHI YUTAKA , HAYASHI TAKAO
IPC分类号： F16H55/46 , C10M129/70 , C10M129/74 , C10M129/76 , C10M133/06 , C10M133/08 , C10M133/16 , C10M133/44 , C10N40/04 , F16H9/18 , F16H55/56
摘要： PROBLEM TO BE SOLVED: To reduce the friction of slide contact parts of rotating shafts of fixed pulleys, a ball and movable pulleys, found in a conventional belt type continuously variable transmission.
SOLUTION: The pulleys P1, P2 are mounted for winding a belt B on the rotating shafts S1, S2, and respectively provided with the fixed pulleys 1, 2, and the movable pulleys 3, 4 holding the ball 10 with the rotating shafts S1, S2, and a hard carbon coating film is formed on at least one of slide contact faces of the rotating shafts S1, S2 of the fixed pulleys 1, 2, the ball 10 and the movable pulleys 3, 4 slid and kept into contact with each other under a lubricant, to provide the slide contact part face with sufficiently high hardness, to improve scuffing resistance and abrasion resistance, and to remarkably reduce the friction.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了减少传统的带式无级变速器中发现的固定皮带轮，球和可移动滑轮的旋转轴的滑动接触部分的摩擦。
解决方案：滑轮P1，P2安装成用于将带B缠绕在旋转轴S1，S2上，并且分别设置有固定皮带轮1,2和可移动的滑轮3,4，该皮带轮3,4以旋转的方式在固定皮带轮1,2的旋转轴S1，S2的滑动接触面中的至少一个上形成有轴S1，S2和硬质碳涂膜，滚珠10和可动滑轮3,4滑动并保持在润滑剂下彼此接触，以使滑动接触部分面具有足够高的硬度，从而提高耐擦伤性和耐磨性，并显着降低摩擦。版权所有（C）2005，JPO＆NCIPI

10. 发明专利

JP2005009638A Shaft part and method for hardening surface of shaft part 审中-公开
标题翻译：轴组件表面硬化部分和方法
公开(公告)号：JP2005009638A
公开(公告)日：2005-01-13
申请号：JP2003176853
申请日：2003-06-20
申请人： Nissan Motor Co Ltd , 日産自動車株式会社
发明人： MIURA NAOMI , HAYASHI TAKAO , USUKI HIDEKI
IPC分类号： F16C3/02 , C21D1/06 , C21D1/76 , C21D9/28 , C23C8/32
摘要： PROBLEM TO BE SOLVED: To provide a shaft part having excellent bending fatigue strength.
SOLUTION: The shaft part has a surface hardening layer, and hardness distribution is present in the direction of depth from a surface, and peak hardness is present at an internal part.
COPYRIGHT: (C)2005,JPO&NCIPI

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