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1. 发明专利

JP2009024243A Quenching method 审中-公开
标题翻译：淬火方法
公开(公告)号：JP2009024243A
公开(公告)日：2009-02-05
申请号：JP2007190843
申请日：2007-07-23
申请人： Jtekt Corp , 株式会社ジェイテクト
发明人： KIZAWA KATSUHIKO , NAKAJIMA TSUTOMU , GOTO MASAO , HARADA HISASHI
IPC分类号： C21D9/40 , C21D1/00 , C21D1/18 , C21D1/63
摘要： PROBLEM TO BE SOLVED: To provide a quenching method capable of reducing strain in the axial direction (cylindricity) that occur at quenching of a ring-like member.
SOLUTION: The quenching method includes: lowering a plurality of ring-like members 6 heated to a quenching temperature in a horizontal posture with its end faces 6a and 6b facing up and down; and soaking and quenching the ring-like members 6 in a coolant 8 inside a cooling tank 9 so as to harden the same. Here, the ring-like members 6 are soaked in the coolant 8, with the lower end face 6a of each ring-like member being covered with a jig 7.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供能够减少在环状构件淬火时发生的轴向应变（圆柱度）的淬火方法。解决方案：淬火方法包括：将端面6a和6b面向上和向下的多个以水平姿态加热到淬火温度的环状构件6降低; 并将环状构件6浸入冷却槽9内的冷却剂8中淬火淬火，使其硬化。这里，将环状构件6浸渍在冷却剂8中，每个环状构件的下端面6a被夹具7覆盖。版权所有（C）2009，JPO＆INPIT

2. 发明专利

JP2007231332A Steel member having excellent rolling fatigue property and its production method 有权
标题翻译：具有优良滚动疲劳性能的钢构件及其生产方法
公开(公告)号：JP2007231332A
公开(公告)日：2007-09-13
申请号：JP2006052688
申请日：2006-02-28
申请人： Jfe Steel Kk , Jfeスチール株式会社 , Jtekt Corp , 株式会社ジェイテクト
发明人： IWAMOTO TAKASHI , TOMITA KUNIKAZU , KIMURA HIDETO , TOYOOKA TAKAAKI , NISHISAKA HISATO , GOTO MASAO , HARADA HISASHI
IPC分类号： C22C38/00 , C21D9/40 , C22C38/60 , F16C33/32 , F16C33/34 , F16C33/62
CPC分类号： C22C38/60 , C21D1/26 , C21D1/28 , C21D1/32 , C21D6/002 , C22C38/02 , C22C38/06 , C22C38/22 , C22C38/34 , F16C33/30 , F16C33/32 , F16C33/34 , F16C33/62 , F16H55/32 , Y10S148/906
摘要： PROBLEM TO BE SOLVED: To provide a steel member having an excellent rolling fatigue life whose service life as that of a bearing is further elongated even under a using condition severer than the conventional one. SOLUTION: The steel member is obtained by subjecting a steel material having a componential composition comprising, by mass, 0.7 to 1.1% C, 0.5 to 2.0% Si, 0.4 to 2.5% Mn, 1.6 to 5.0% Cr, 0.1 to COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了提供具有优异的滚动疲劳寿命的钢构件，即使在比常规的使用条件更严格的情况下，其使用寿命作为轴承的使用寿命也进一步延长。解决方案：钢构件是通过将具有质量分数为0.7〜1.1％的Si，0.5〜2.0％的Si，0.4〜2.5％的Mn，1.6〜5.0％的Cr，0.1〜 <0.5％Mo和0.010〜0.050％Al，其中作为杂质的Sb的侵入被抑制为<0.0015％，余量为Fe与不可避免的杂质进行淬火和回火。另外，从表面到深度为5mm的钢结构中，残留渗碳体的粒径控制在0.05〜1.5μm; 老奥氏体粒径控制在≤30μm，残留奥氏体含量控制在<25体积％比。版权所有（C）2007，JPO＆INPIT

3. 发明专利

JP2009155685A Quenching method 审中-公开
标题翻译：淬火方法
公开(公告)号：JP2009155685A
公开(公告)日：2009-07-16
申请号：JP2007334409
申请日：2007-12-26
申请人： Jtekt Corp , 株式会社ジェイテクト
发明人： KIZAWA KATSUHIKO , GOTO MASAO
IPC分类号： C21D1/18 , C21D1/00 , C21D1/64 , C21D9/40
摘要： PROBLEM TO BE SOLVED: To provide a quenching method which can reduce the distortion that occurs while being quenched, by inhibiting ununiform cooling (cooling unevenness) from occurring in each which has been immersed in a cooling liquid.
SOLUTION: This quenching method includes: three-dimensionally arranging a plurality of workpieces 7 which are heated to a quenching temperature, in a mesh-like tray 8b of a mesh-like basket 8, in such a transversely-placed state that both end faces direct upward and downward; immersing the above basket 8 into a cooling liquid 2 which flows from the bottom part of a cooling tank 3 towards the upper part, by lowering the above basket 8; and quenching the workpieces to harden them. At this time, the workpieces 7 are immersed in the cooling liquid 2 which flows from the bottom part of the cooling tank 3 towards the bottom part 8a of the basket 8, in such a state that a distributor 9 which leads the cooling liquid 2 to a side face side of the basket 8 covers at least the bottom part 8a of the basket 8.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种淬火方法，其可以通过抑制在冷却液中浸渍的不均匀冷却（冷却不均匀性）来减少淬火时发生的变形。解决方案：该淬火方法包括：在网状篮8的网状托盘8b中以这样的横向放置状态将多个加热至淬火温度的工件7三维布置，两端面向上和向下直接; 将上述筐8浸入从冷却槽3的底部朝向上部流动的冷却液2中，通过下降上述筐8; 并淬火工件使其硬化。此时，将工件7浸渍在从冷却槽3的底部向篮8的底部8a流动的冷却液2中，使得将冷却液2引导到篮子8的侧面侧至少覆盖篮子8的底部8a。版权所有（C）2009，JPO＆INPIT

4. 发明专利

JP2008256082A Tripod type constant velocity joint 审中-公开
标题翻译：三联类型恒定速度接头
公开(公告)号：JP2008256082A
公开(公告)日：2008-10-23
申请号：JP2007098593
申请日：2007-04-04
申请人： Jtekt Corp , 株式会社ジェイテクト
发明人： HARADA HISASHI , GOTO MASAO
IPC分类号： F16D3/205 , F16D3/20
摘要： PROBLEM TO BE SOLVED: To provide a tripod type constant velocity joint capable of stably securing surface hardness without a variation required for each of a tripod shaft and an inner peripheral spline without using a new member such as an inner ring member.
SOLUTION: A tripod 20 is formed of heat-treated steel or non-heat-treated steel having 0.35 mass% or more and 0.60 mass% or less carbon, and at least the outer peripheral face of the tripod shaft part 22 is applied with induction hardening. The tripod 20 that positively satisfies the surface hardness required for the inner peripheral spline of a boss 21 and the surface hardness required for the outer peripheral face of the tripod shaft 22 can thereby be formed.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够在不使用诸如内圈构件的新构件的情况下稳定地确保表面硬度而不需要三脚架轴和内周花键的变化的三脚架式等速万向节接头。解决方案：三脚架20由具有0.35质量％以上且0.60质量％以下的碳的热处理钢或非热处理钢构成，至少三角架轴部22的外周面为应用感应淬火。从而可以形成积极地满足凸台21的内周花键所需的表面硬度的三脚架20和三角架轴22的外周面所需的表面硬度。版权所有（C）2009，JPO＆INPIT

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