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11.发明专利Rolling member for use in wheel bearing device, manufacturing method therefor and wheel bearing device 审中-公开用于车轮轴承装置的滚动构件，其制造方法和车轮轴承装置
公开(公告)号：JP2007182609A
公开(公告)日：2007-07-19
申请号：JP2006001605
申请日：2006-01-06
Inventor： MAEDA KIKUO , NAKAJIMA HIROKAZU
IPC: C21D9/40 , B60B35/18 , C21D1/06 , C21D1/10 , C21D7/06 , F16C19/18 , F16C19/38 , F16C33/32 , F16C33/36 , F16C33/64
CPC classification number: F16C33/64 , F16C19/184 , F16C19/386 , F16C33/32 , F16C33/366
Abstract: PROBLEM TO BE SOLVED: To provide a rolling member having the improved endurance life in a hostile environment for use in a wheel bearing device; the wheel bearing device having the long life even in the hostile environment; and a manufacturing method therefor. SOLUTION: The method for manufacturing the rolling member for use in the wheel bearing device comprises the steps of: preparing a steel member; carburizing or carbonitriding and quenching; induction-hardening; and finishing. In the step of preparing the steel member, the steel member is made from steel and is formed into a contour shape of the rolling member for use in the wheel bearing device. In the step of carburizing or carbonitriding the steel member, the steel member is carburized or carbonitrided and then quench-hardened. In the step of induction-hardening the steel member, a region including a part to be the rolling surface of the rolling member for use in the wheel bearing device is further quench-hardened to control an amount of retained austenite in a region between the surface to be the rolling surface and a plane of 0.3 mm or less in depth therefrom to 50 vol.% to 70 vol.%. In the step of finishing, the steel member is processed to be finished. COPYRIGHT: (C)2007,JPO&INPIT
Abstract translation: 要解决的问题：提供一种在用于车轮轴承装置的恶劣环境中具有改善的耐久寿命的滚动部件; 车轮轴承装置即使在恶劣的环境下也具有较长的使用寿命; 及其制造方法。 解决方案：用于制造用于车轮轴承装置的滚动部件的方法包括以下步骤：准备钢构件; 渗碳或碳氮共渗和淬火; 感应硬化; 和整理。 在制造钢构件的步骤中，钢构件由钢制成，并且形成为用于车轮轴承装置的滚动构件的轮廓形状。 在对钢构件进行渗碳或碳氮共渗的步骤中，对钢构件进行渗碳或碳氮共渗，然后淬火硬化。 在钢构件的感应淬火步骤中，将用于车轮轴承装置的滚动构件的滚动面的一部分区域进一步淬火硬化，以控制表面之间的区域中的残余奥氏体的量 作为滚动面，将其深度为0.3mm以下的平面为50体积％〜70体积％。 在精加工步骤中，对钢构件进行加工处理。 版权所有（C）2007，JPO＆INPIT
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12.发明专利Environment resistant bearing steel having excellent hydrogen embrittlement resistance 审中-公开具有优异耐氢腐蚀性的环保电阻轴承钢
公开(公告)号：JP2006213981A
公开(公告)日：2006-08-17
申请号：JP2005029862
申请日：2005-02-04
Applicant: Daido Steel Co Ltd , Ntn Corp , Ntn株式会社 , 大同特殊鋼株式会社
Inventor： MAEDA KIKUO , MATSUBARA YUKIO , KINAMI TOSHIYA
CPC classification number: C22C38/02 , C22C38/24 , F16C33/62 , F16C2204/66 , F16C2204/70
Abstract: PROBLEM TO BE SOLVED: To provide an environment resistant bearing steel having an excellent rolling fatigue life even under using conditions where hydrogen embrittlement peeling occurs without remarkably changing the conventional heat treatment conditions or the like by adding alloy elements with SUJ 2 as a base.
SOLUTION: The environment resistant bearing steel has a composition comprising, by mass, 0.6 to 1.3% C, 0.1 to 1.0% Si, ≤1.5% Mn, ≤0.03% P, ≤0.03% S, 0.3 to 2.5% Cr, 0.05 to 2.0% V, ≤0.050% Al, ≤0.0015% O, ≤0.003% Ti, ≤0.015% N, and the balance Fe with inevitable impurities, and in which surface hardness after quenching and tempering treatment is ≥58 by HRC, and fine V based carbides with the maximum diameter of ≤500 nm are dispersedly precipitated.
COPYRIGHT: (C)2006,JPO&NCIPIAbstract translation: 要解决的问题：即使在发生氢脆剥离的条件下也提供具有优异的滚动疲劳寿命的耐环境轴承钢，而不会通过将SUJ 2的合金元素添加为常规热处理条件等而显着改变常规的热处理条件等 基础。 ＆lt; P＆gt;解决方案：耐环境轴承钢具有质量分数为0.6-1.3％的C，0.1到1.0％的Si，≤1.5％的Mn，≤0.03％的P，≤0.03％的S，0.3到2.5％的Cr ，0.05〜2.0％V，≤0.050％Al，≤0.0015％O，≤0.003％Ti，≤0.015％N，余量为Fe与不可避免的杂质，淬火回火处理后的表面硬度HRC为≥58 ，最大直径≤500nm的细V族碳化物分散析出。 版权所有（C）2006，JPO＆NCIPI
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公开(公告)号：JP2006132652A
公开(公告)日：2006-05-25
申请号：JP2004321954
申请日：2004-11-05
Inventor： MATSUBARA YUKIO , HAMADA HIROSHI , MAEDA KIKUO , UEDA KEIICHI
Abstract: PROBLEM TO BE SOLVED: To provide a high speed rotating angular ball bearing having improved hydrogen resistant fatigue property.
SOLUTION: The angular ball bearing 1 to be used at a dn value 900000 or more comprises an outer ring 2 having a rolling surface 2a on the inner periphery, an inner ring 3 having a rolling surface 3a opposed to the rolling surface 2a of the outer ring 2, and a plurality of balls 4 laid between the outer ring 2 and the inner ring 3. At least one member of the inner ring 3, the outer ring 2 and the balls 4 is formed of a steel material which contains at least V as an alloy element, and in which the contents of C, Si, Mn, Cr and V on the surface and the surface layer subject to rolling contact are C: 0.5-1.2 mass%, Si: 0.1-1 mass%, Mn: 0.1-1.5 mass%, Cr: 0.1-2.2 mass%, and V: 0.1 mass% or more.
COPYRIGHT: (C)2006,JPO&NCIPIAbstract translation: 要解决的问题：提供具有改善的耐氢疲劳性能的高速旋转角球轴承。 解决方案：以dn值为900000以上使用的角球轴承1包括在内周具有滚动面2a的外圈2，具有与滚动面2a相对的滚动面3a的内圈3 以及设置在外圈2和内圈3之间的多个球4.内圈3，外圈2和球4的至少一个构件由钢材形成，该钢材含有 至少V为合金元素，其中表面和受滚动接触的表面层上的C，Si，Mn，Cr和V的含量为C：0.5-1.2质量％，Si：0.1-1质量％ ，Mn：0.1〜1.5质量％，Cr：0.1〜2.2质量％，V：0.1质量％以上。 版权所有（C）2006，JPO＆NCIPI
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公开(公告)号：JP2005331005A
公开(公告)日：2005-12-02
申请号：JP2004148607
申请日：2004-05-19
Inventor： MAEDA KIKUO , NAKAJIMA HIROKAZU
CPC classification number: Y02P10/253
Abstract: PROBLEM TO BE SOLVED: To provide a manufacturing method of a rolling element and a device capable of having each effect of settling a transportation means of a workpiece with a simple structure, easily mounting the production line under the low thermal influence on an environment taking advantage of a high-frequency induction hardening, quality stabilization and energy cost reduction. SOLUTION: A sizing cutter 1 to successively cut a wire-like blank material WA is provided, while extruding thereof. A guide pipe 6 to move the cut workpiece W inside by extrusion with the sizing cutter 1 is provided. A heater coil 7 for high-frequency induction heating the work W moving inside to a quenching temperature is installed in circumference of the guide pipe 6. A quenching means 8 to quench the work W and a heating coil 9 for tempering are installed at the lower side. A surface treatment means 3 to surface-treat the work W successively extruded from the guide pipe 6 such as outside diameter polishing, etc., after thermally heat treated thereby. The movement of the workpiece W by the surface treatment means 3 is conducted using the extrusion force by the sizing cutter 1. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract translation: 要解决的问题：为了提供滚动元件的制造方法和能够以简单的结构使各种工件的输送装置的沉降效果的装置，容易将低热影响下的生产线安装在 环境利用高频感应淬火，质量稳定和能源成本降低。 解决方案：提供一种连续切割线状坯料WA的定径切割机1，同时挤出。 提供了通过用精加工刀1挤压将切割工件W向内移动的引导管6。 用于高频感应加热的加热器线圈7安装在引导管6的周围。在下部安装用于淬火工件W的淬火装置8和用于回火的加热线圈9。 侧。 一种表面处理装置3，用于对经过热处理的外径抛光等从导向管6连续挤出的工件W进行表面处理。 通过表面处理装置3的工件W的移动通过施胶机1的挤压力进行。版权所有（C）2006，JPO＆NCIPI
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15.发明专利
公开(公告)号：JP2005325409A
公开(公告)日：2005-11-24
申请号：JP2004144407
申请日：2004-05-14
Inventor： MAEDA KIKUO
CPC classification number: F16C33/64 , F16C2300/14
Abstract: PROBLEM TO BE SOLVED: To provide a high frequency heat treatment method for a ring-shaped product by which the temperature of a ring-shaped product can uniformly be raised in a short time, and a device therefor is made small in size, and to provide a high frequency heat treatment device.
SOLUTION: A plurality of horseshoe-shaped heating coils 1 are arranged corresponding to a plurality of parts in the circumferential direction of a ring-shaped work W as the object to be treated, and a part in the circumferential direction of the ring-shaped work W is interposed inside the heating coils 1. While rotating the ring-shaped work W around a ring center O, high frequency electric current is fed to the heating coils, and induction heating for quenching or tempering is performed. In the plurality of heating coils 1, at least one selected from distance, angle and orientation to the ring-shaped W may be different from each other. The invention is used for heating to a relatively big bearing ring or the like.
COPYRIGHT: (C)2006,JPO&NCIPIAbstract translation: 要解决的问题：为了提供环状产品的高频热处理方法，通过该方法可以在短时间内均匀地提高环形产品的温度，并且其装置的尺寸较小 ，并提供高频热处理装置。 解决方案：多个马蹄形加热线圈1相对于作为待处理对象的环形工件W的圆周方向上的多个部件布置，并且环的圆周方向上的一部分 形状的工件W插入在加热线圈1的内部。在围绕环形中心O旋转环形工件W的同时，向加热线圈供给高频电流，进行用于淬火或回火的感应加热。 在多个加热线圈1中，从环形W的距离，角度和取向中选择的至少一个可以彼此不同。 本发明用于加热到较大的轴承环等。 版权所有（C）2006，JPO＆NCIPI
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Patent Agency Ranking
公开(公告)号：JP2005133215A
公开(公告)日：2005-05-26
申请号：JP2004296167
申请日：2004-10-08
Inventor： NAKAJIMA HIROKAZU , MAEDA KIKUO
CPC classification number: Y02P10/253
Abstract: PROBLEM TO BE SOLVED: To uniformly micronize crystal grains in the whole body of a part by strictly controlling the heating temperature in secondary heat treatment in a heat treatment system in which a nitrogen-enriched layer is formed in primary heat treatment and a re-quenching is applied in the secondary heat treatment. SOLUTION: A bearing part is cooled to the temperature below an A 1 transformation point after heating to the temperature exceeding the A 1 transformation point with a primary heat treatment apparatus 1, to form the nitrogen-enriched layer on the surface thereof. The bearing part after applying the primary heat treatment, is applied to the heat treatment with a secondary heat treatment apparatus 2 which cools to the temperature below the A 1 transformation point after heating to the temperature exceeding the A 1 transformation point. In a heater 21 in the secondary heat treatment apparatus 2, an induction-heating is applied and the temperature of the induction-heated bearing part, is detected and a feedback control is applied to the heater 21 according to the detected value. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract translation: 要解决的问题：通过在一次热处理中形成富氮层的热处理系统中严格控制二次热处理中的加热温度来均匀地使部件全体的晶粒微粉化， 在二次热处理中应用再淬火。 解决方案：使用一次热处理装置加热至超过A
1 相变点的温度后，将轴承部分冷却至低于A 1 相变点的温度 在其表面上形成富氮层。 在进行一次热处理后的轴承部分，在加热到超过A的温度之后，用二次热处理装置2进行热处理，二次热处理装置冷却至低于A <1> SB> 1 转换点。 在二次热处理装置2的加热器21中，施加感应加热，检测感应加热轴承部的温度，根据检测值对加热器21进行反馈控制。 版权所有（C）2005，JPO＆NCIPI -
公开(公告)号：JP2005133211A
公开(公告)日：2005-05-26
申请号：JP2004296163
申请日：2004-10-08
Inventor： NAKAJIMA HIROKAZU , MAEDA KIKUO
Abstract: PROBLEM TO BE SOLVED: To restrain the unevenness of heat treatment quality in each steel-made part and the variation of heat treatment quality among the steel-made parts.
SOLUTION: A heater 21 in a secondary heat treatment apparatus 2, is constituted of a high frequency heating apparatus for heating a bearing part by induction heating (high frequency heating). In the heater 21, each bearing part is heated piece by piece at the temperature exceeding an A
1 transformation point for a predetermined time. Since each bearing part is heated piece by piece, the unevenness of the heat treatment quality in each bearing part and the variation of the heat treatment quality among mutual bearing parts, are reduced.
COPYRIGHT: (C)2005,JPO&NCIPIAbstract translation: 要解决的问题：限制钢制部件中的热处理质量的不均匀性和钢制部件之间的热处理质量的变化。 解决方案：二次热处理装置2中的加热器21由用于通过感应加热（高频加热）加热轴承部分的高频加热装置构成。 在加热器21中，在超过A
1 变形点的温度下，逐个加热各轴承部一段时间。 由于各轴承部件被逐个加热，因此各轴承部的热处理品质的不均匀性和相互承受部件之间的热处理品质的变化变小。 版权所有（C）2005，JPO＆NCIPI -
公开(公告)号：JP2005113214A
公开(公告)日：2005-04-28
申请号：JP2003349676
申请日：2003-10-08
Inventor： NAKAJIMA HIROKAZU , MAEDA KIKUO
Abstract: PROBLEM TO BE SOLVED: To perform two-step quenching treatments to machining parts such as bearing parts, at a low cost, in a heat treatment system for applying two steps of heat treatment (primary heat treatment and secondary heat treatment) to steel-made parts.
SOLUTION: In a primary heat treatment apparatus 1, after heating the bearing parts to the temperature exceeding A
1 transformation point with a heating machine 11, a nitrogen-rich layer is formed on the surfaces of the bearing parts by cooling them lower than the A
1 transformation point. Successively, the bearing parts are shifted to a secondary heat treatment apparatus 2, and after heating to the temperature exceeding the A
1 transformation point and lower than the primary quenching temperature, the parts are cooled lower than the A
1 transformation point. The bearing parts are supplied into the secondary heat treatment apparatus 2 after applying the heat treatment with the primary heat treatment apparatus 1 and applying a tempering with a tempering machine 5.
COPYRIGHT: (C)2005,JPO&NCIPIAbstract translation: 要解决的问题：为了以低成本对用于加热二次热处理（一次热处理和二次热处理两个步骤）的热处理系统中的加工零件如轴承部件进行两步淬火处理 钢制零件。 解决方案：在一次热处理装置1中，在用加热机11将轴承部件加热到超过A
1 相变点的温度之后，在 轴承部件通过冷却它们低于A 1 变形点。 接着将轴承部件移动到二次热处理装置2，在加热到超过A 1 相变点并低于初级淬火温度的温度之后，将部件冷却至低于A 1 转换点。 在与一次热处理装置1进行热处理并用回火机5进行回火后，将轴承部件供给到二次热处理装置2中。（C）2005，JPO＆NCIPI -
公开(公告)号：JP2005113186A
公开(公告)日：2005-04-28
申请号：JP2003347095
申请日：2003-10-06
Inventor： MAEDA KIKUO , KATAOKA HIROKI
Abstract: PROBLEM TO BE SOLVED: To provide a rolling bearing ring having uniform hardness and its producing method, and a rolling bearing having the rolling bearing ring with which warping and deformation at the heat treatment (at hardening) can be restrained.
SOLUTION: The production method of rolling bearing ring is as following, by which after heating the ring 1 in a thrust needle roller bearing, while pressing with dies 12a, 12b, the hardening is performed by cooling these dies 12a, 12b as a hardening medium.
COPYRIGHT: (C)2005,JPO&NCIPIAbstract translation: 要解决的问题：提供一种具有均匀硬度的滚动轴承圈及其制造方法，以及具有能够抑制热处理（硬化时）翘曲变形的滚动轴承圈的滚动轴承。 解决方案：滚动轴承圈的制造方法如下，在推压滚针轴承中加热环1后，在与模具12a，12b一边挤压的同时，通过将这些模具12a，12b冷却为 硬化介质。 版权所有（C）2005，JPO＆NCIPI
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公开(公告)号：JP2004301341A
公开(公告)日：2004-10-28
申请号：JP2004225967
申请日：2004-08-02
Inventor： TAMADA KENJI , MAEDA KIKUO , KAWAMURA TOMOAKI , SASABE MITSUO
CPC classification number: F16C19/30 , F16C33/4635 , F16C33/48 , F16C33/54 , F16C2240/50
Abstract: PROBLEM TO BE SOLVED: To provide a thrust roller bearing capable of reducing differential slide caused on a rolling body face, reducing load capacity, and suppressing increase of rolling contact face pressure.
SOLUTION: This thrust roller bearing is provided with rollers 2 and a holder 3, which is a resin-made holder manufactured by injection molding. At least two rollers or more are held in each pocket of the holder, and crowning is formed on at least one roller.
COPYRIGHT: (C)2005,JPO&NCIPI
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