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公开(公告)号：JP2004183802A
公开(公告)日：2004-07-02
申请号：JP2002352241
申请日：2002-12-04
Inventor： OKI TSUTOMU , MAEDA KIKUO
Abstract: PROBLEM TO BE SOLVED: To provide a needle roller bearing capable of restricting heat treatment deformation while securing prescribed hardness.
SOLUTION: Steel material for forming at least one of an inner ring 2, an outer ring 4, and a needle roller 3 is quenched and hardened by atmospheric cooling. A surface layer part quenched and hardened has hardness of HV650 or more.
COPYRIGHT: (C)2004,JPO&NCIPIAbstract translation: 要解决的问题：提供一种能够在确保规定的硬度的同时限制热处理变形的滚针轴承。 解决方案：用于形成内圈2，外圈4和针辊3中的至少一个的钢材料通过大气冷却淬火淬火。 淬火和硬化的表面层部件的硬度为HV650以上。 版权所有（C）2004，JPO＆NCIPI
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公开(公告)号：JP2003328706A
公开(公告)日：2003-11-19
申请号：JP2002142685
申请日：2002-05-17
Inventor： MAEDA KIKUO
Abstract: PROBLEM TO BE SOLVED: To provide a rocker arm rarely generating dents on a transfer surface of a bearing outer ring acting as a cam follower and to provide a bearing of the rocker arm.
SOLUTION: An action part 14 operating a valve of an internal combustion engine and a roller bearing 10 in which an outer ring 22 acts as the cam follower are installed in a rockable arm body 4. The roller bearing 10 is equipped with a roller spindle 21 fit to the arm body 4; the outer ring 22; and a plurality of needle rollers 23. The material of the outer ring 22 is steel and the amount of retained austenite in the steel is specified to 8% or less.
COPYRIGHT: (C)2004,JPOAbstract translation: 要解决的问题：为了提供一种在用作凸轮从动件的轴承外圈的转移表面上很少产生凹陷并提供摇臂的轴承的摇臂。 解决方案：操作内燃机的阀的动作部分14和外环22用作凸轮从动件的滚子轴承10安装在摇臂体4中。滚子轴承10配备有 辊轴21配合到臂主体4上; 外环22; 和多个滚针23.外圈22的材料为钢，钢中的残余奥氏体量规定为8％以下。 版权所有（C）2004，JPO
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公开(公告)号：JP2013159808A
公开(公告)日：2013-08-19
申请号：JP2012021824
申请日：2012-02-03
Inventor： MAEDA KIKUO , KAWAKITA MASAYUKI
IPC: C21D9/40 , C21D1/06 , C21D1/10 , C21D9/36 , C22C38/00 , C22C38/04 , C23C8/26 , F16C33/32 , F16C33/34 , F16C33/62 , F16C33/64
CPC classification number: Y02P10/253
Abstract: PROBLEM TO BE SOLVED: To provide a method for manufacturing a rolling-contact part with which the manufactured cost can be decreased while securing durability.SOLUTION: A method for manufacturing the rolling-contact parts (11, 12, 13), constituted with a steel composed of 0.4-0.7% carbon, 0.15-0.35% silicon, 0.4-1.3% manganese and the balance iron with impurities; is provided with the following step, wherein, a step, in which formed bodies formed into the formations of the rolling-contact parts (11, 12, 13), are prepared; a step, in which the formed bodies are heated to the temperature of lower than the Atransforming point under the atmosphere containing nitrogen atmos to form nitrogen-invasion layers 11B, 12B, 13B; a step, in which the high nitrogen hardened layers 11B, 12B, 13B being the nitrogen-invasion layer, induction-hardened in the range containing the surfaces of the rolling-contact parts (11A, 12A, 13A), are formed; and a step, in which the nitride layer formed on the surfaces of the high nitrogen hardened layers (11B, 12B, 13B), are removed.
Abstract translation: 要解决的问题：提供一种用于制造滚动接触部件的方法，能够在确保耐久性的同时降低制造成本。解决方案：一种制造滚动接触部件（11,12,13）的方法， 钢由0.4-0.7％的碳，0.15-0.35％的硅，0.4-1.3％的锰和余量的铁与杂质组成; 具备以下工序，其中，准备形成为滚动接触部（11,12,13）的成形体的成形体的工序; 在包含氮气的气氛下将成形体加热至低于转化点的温度的步骤，形成氮侵入层11B，12B，13B; 形成在包含滚动接触部（11A，12A，13A）的表面的范围内进行感应淬火的氮浸渍层的高氮硬化层11B，12B，13B的工序; 以及其中形成在高氮硬化层（11B，12B，13B）的表面上的氮化物层被去除的步骤。
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64.发明专利Rolling bearing cage, rolling bearing, and rolling bearing cage manufacturing method 审中-公开滚动轴承笼，滚动轴承和滚动轴承座制造方法
公开(公告)号：JP2009236146A
公开(公告)日：2009-10-15
申请号：JP2008080002
申请日：2008-03-26
Inventor： MAEDA KIKUO
IPC: F16C33/56
Abstract: PROBLEM TO BE SOLVED: To provide a rolling bearing cage to which high durability is imparted while suppressing an increase in the weight and which secures high dimensional accuracy and dimensional stability, and also to provide its manufacturing method and a rolling bearing.
SOLUTION: The cage 14 is formed of steel which contains 0.05 or more and less than 0.4 mass% carbon, 0.1-0.35 mass% silicon, and 0.1-0.9 mass% manganese, and consists of iron in the rest and impurities. In a region including a surface 14A of the cage 14, a cage nitrogen enriched layer 14B is formed which has higher nitrogen concentration than an inside 14C. The cage nitrogen enriched layer 14B includes a bainite structure where a remaining austenite amount is held down to 5 vol% or less.
COPYRIGHT: (C)2010,JPO&INPITAbstract translation: 要解决的问题：提供一种在抑制重量增加的同时赋予高耐久性的滚动轴承保持架，并且确保高尺寸精度和尺寸稳定性，并且还提供其制造方法和滚动轴承。 解决方案：保持架14由含有0.05质量％以上且小于0.4质量％的碳，0.1〜0.35质量％的硅和0.1〜0.9质量％的锰构成的钢构成，其余为铁和杂质。 在包括保持架14的表面14A的区域中，形成具有比内部14C高的氮浓度的保持架氮富集层14B。 笼式富氮层14B包括其余奥氏体量保持在5体积％以下的贝氏体组织。 版权所有（C）2010，JPO＆INPIT
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公开(公告)号：JP2009057589A
公开(公告)日：2009-03-19
申请号：JP2007224385
申请日：2007-08-30
Inventor： MAEDA KIKUO , TAMADA KENJI
IPC: C22C38/00 , C21D1/06 , C21D9/40 , C22C38/46 , C22C38/50 , C23C8/32 , F16C19/44 , F16C33/34 , F16C33/62 , F16C33/64
Abstract: PROBLEM TO BE SOLVED: To provide a needle roller bearing and a needle roller, having a long service life under severe environment while restraining the contents of alloy elements. SOLUTION: An orbital ring 11 and a needle roller 13 of a thrust-needle roller bearing 1, are composed of steel containing 0.7-1.1% C, 0.3-0.7% Si, 0.3-0.8% Mn, 0.5-1.2% Ni, 1.3-1.8% Cr, 0.1-0.7% Mo and 0.2-0.4% V, and the balance Fe with impurities, wherein the content of Si+Mn is ≤1.0%, the content of Ni+Cr is ≤2.3% and the content of Cr+Mo+V is ≤3.0%, and high carbon-containing layer is formed, wherein the hardness on this surface layer is 725-800 Hv, the maximum grain diameter of carbide on the surface layer part is ≤10 μm, the area ratio is 7-20% and the carbon content on the surface layer is higher by 0.2-0.4% than this content in the inner part and the nitrogen content on the surface layer part is 0.1-0.5%. COPYRIGHT: (C)2009,JPO&INPIT
Abstract translation: 要解决的问题：提供一种滚针轴承和滚针，在严格环境下使用寿命长，同时抑制合金元素的含量。
解决方案：推力滚针轴承1的轨道环11和滚针13由含有0.7-1.1％C，0.3-0.7％Si，0.3-0.8％Mn，0.5-1.2％ Ni，1.3-1.8％Cr，0.1-0.7％Mo和0.2-0.4％V，余量为Fe与杂质，其中Si + Mn含量≤1.0％，Ni + Cr含量≤2.3％， Cr + Mo + V的含量≤3.0％，形成高含碳层，表面层的硬度为725-800Hv，表面层部分的碳化物的最大粒径为≤10μm ，面积比为7-20％，表面层的碳含量比内部含量高0.2-0.4％，表层部分的氮含量为0.1-0.5％。 版权所有（C）2009，JPO＆INPIT
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Patent Agency Ranking66.发明专利
公开(公告)号：JP2008308743A
公开(公告)日：2008-12-25
申请号：JP2007158924
申请日：2007-06-15
Inventor： MAEDA KIKUO , TAMADA KENJI
Abstract: PROBLEM TO BE SOLVED: To provide a rolling member for a machine tool having a long service life even in a severe environment while suppressing the contents of alloy elements, and to provide a rolling bearing for the machine tool. SOLUTION: The outer ring 11, inner ring 12 and ball 13 of an angular contact ball bearing 1 supporting the main shaft of a machine tool are each composed of a steel having a composition comprising 0.7 to 1.1% carbon, 0.3 to 0.7% silicon, 0.3 to 0.8% manganese, 0.5 to 1.2% nickel, 1.3 to 1.8% chromium, 0.1 to 0.7% molybdenum and 0.2 to 0.4% vanadium, and the balance iron with impurities, and in which the content of silicon+manganese is ≤1.0%, the content of nickel+chromium is ≥2.3%, the content of nickel+molybdenum+vanadium is ≤3.0%, a high carbon-containing layer is formed, the hardness of the surface layer part is 725 to 800 HV, the maximum grain size of carbide in the surface layer part is ≤10 μm, the area ratio thereof is 7 to 20%, the carbon content in the surface layer part is higher than that at the inside by 0.2 to 0.4%, and the content of nitrogen in the surface layer part is 0.1 to 0.5 mass%. COPYRIGHT: (C)2009,JPO&INPIT
Abstract translation: 解决的问题：为了在抑制合金元素的含量的同时在即使在恶劣的环境下使用寿命长的机床的滚动部件，也可以为机床提供滚动轴承。 解决方案：支撑机床主轴的角接触球轴承1的外圈11，内圈12和球13均由具有0.7〜1.1％碳，0.3〜0.7的组成的钢构成 ％硅，0.3〜0.8％的锰，0.5〜1.2％的镍，1.3〜1.8％的铬，0.1〜0.7％的钼和0.2〜0.4％的钒，余量为铁的杂质，其中硅+锰的含量为 ≤1.0％，镍+铬含量≥2.3％，镍+钼+钒含量≤3.0％，形成高含碳层，表层部分硬度为725〜800HV， 表面层部分的碳化物的最大晶粒尺寸为≤10μm，面积比为7〜20％，表层部分的碳含量比内部的碳含量高0.2〜0.4％，含量 的表面层部分中的氮为0.1〜0.5质量％。 版权所有（C）2009，JPO＆INPIT
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公开(公告)号：JP2008207600A
公开(公告)日：2008-09-11
申请号：JP2007043756
申请日：2007-02-23
Inventor： OTSUKI HISASHI , MAEDA KIKUO
Abstract: PROBLEM TO BE SOLVED: To provide a bearing device for a wheel of which the high durability is ensured, by including a part with improved fatigue strength in a non-hardened portion.
SOLUTION: A wheel bearing device 1 includes an outer member 10, an inner member 20, and a roller 50. The inner member 20 includes a hub ring 30 made of steel and having a wheel mounting flange 31 formed. The hub ring 30 has a hardened portion 39 hardened to attain at least 50 HRC as a result of quench hardening and a non-hardened portion 33 which is a portion other than the hardened portion 39. An austenite crystal grain size of steel constituting the non-hardened portion 33 is #8 or more.
COPYRIGHT: (C)2008,JPO&INPITAbstract translation: 要解决的问题：通过在非硬化部分中包括具有改善的疲劳强度的部件来提供用于确保高耐久性的车轮的轴承装置。 解决方案：车轮轴承装置1包括外部构件10，内部构件20和辊50.内部构件20包括由钢制成并具有形成的轮安装法兰31的轮毂环30。 轮毂环30具有硬化部分39，该硬化部分39硬化，由于淬火硬化而达到至少50HRC，而非硬化部分33是除硬化部分39之外的部分。构成非硬化部分的钢的奥氏体晶粒尺寸 硬化部33为＃8以上。 版权所有（C）2008，JPO＆INPIT
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公开(公告)号：JP2008207597A
公开(公告)日：2008-09-11
申请号：JP2007043753
申请日：2007-02-23
Inventor： MAEDA KIKUO , OTSUKI HISASHI
Abstract: PROBLEM TO BE SOLVED: To provide a wheel bearing device of which the high durability is ensured, by including a part with improved fatigue strength in a non-hardened portion.
SOLUTION: A wheel bearing device 1 includes an outer member 10, an inner member 20, and a roller 50. The inner member 20 includes a hub ring 30 made of steel and having a wheel mounting flange 31 formed. The hub ring 30 has a hardened portion 39 hardened to attain at least 50 HRC as a result of quench hardening and a non-hardened portion 33 which is a portion other than the hardened portion 39. Compressive stress in a range of 50-500 MPa remains in the surface of the non-hardened portion 33.
COPYRIGHT: (C)2008,JPO&INPITAbstract translation: 要解决的问题：通过在非硬化部分中包括具有改善的疲劳强度的部件来提供确保高耐久性的车轮轴承装置。 解决方案：车轮轴承装置1包括外部构件10，内部构件20和辊50.内部构件20包括由钢制成并具有形成的轮安装法兰31的轮毂环30。 轮毂环30具有硬化部分39，硬化部分39被硬化以由于淬火硬化获得至少50HRC，而非硬化部分33是不同于硬化部分39的部分。压缩应力在50-500MPa的范围内 保留在非硬化部分33的表面。版权所有（C）2008，JPO＆INPIT
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公开(公告)号：JP2008207588A
公开(公告)日：2008-09-11
申请号：JP2007043597
申请日：2007-02-23
Inventor： OTSUKI HISASHI , MAEDA KIKUO
CPC classification number: Y02T10/86
Abstract: PROBLEM TO BE SOLVED: To provide a bearing device for a wheel with a hub ring having improved strength and durability under rotationally bent conditions, while reducing its weight without changing the shape and size of a wheel mounting flange and without impairing face deflection.
SOLUTION: After hot forging of medium carbon steel as material of the hub wheel 1, by control of cooling speed or whole surface refining processing, residual compression stress from a corner R surface of a wheel mounting flange inboard side root part 10ir of the hub wheel 1 to a shaft part outer diameter surface is defined in a range of 200-800 MPa, and the residual compression stress of an inner diameter part surface of the hub wheel 1 is defined in a range of 50-500 MPa.
COPYRIGHT: (C)2008,JPO&INPITAbstract translation: 要解决的问题：提供一种具有轮毂环的轮毂的轴承装置，其在旋转弯曲条件下具有改善的强度和耐久性，同时在不改变轮安装凸缘的形状和尺寸的同时减小其重量并且不损害面部偏转 。 解决方案：通过控制冷却速度或整个表面精炼处理，在作为轮毂轮1的材料的中碳钢进行热锻后，来自车轮安装凸缘的侧面根部10ir的拐角R表面的残余压缩应力 将轮毂轮1的轴部外径面定义在200〜800MPa的范围内，将轮毂轮1的内径部表面的残留压缩应力定义为50〜500MPa的范围。 版权所有（C）2008，JPO＆INPIT
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70.发明专利Method of manufacturing track member, method of manufacturing valve gear, and track member 审中-公开制造轨道构件的方法，制造阀门齿轮的方法和轨道构件
公开(公告)号：JP2008064159A
公开(公告)日：2008-03-21
申请号：JP2006240618
申请日：2006-09-05
Inventor： MAEDA KIKUO , NAKAJIMA HIROKAZU , MORI NOBUYUKI
Abstract: PROBLEM TO BE SOLVED: To provide a method of manufacturing a track member capable of suppressing the increase of a manufacturing cost, sufficiently increasing the hardness of an area including a rolling surface, ensuring the sufficient rolling fatigue lifetime by giving the high resistance against the rolling fatigue, and consistently controlling the hardness of an area of the plastic deformation.
SOLUTION: The method of manufacturing the track member includes a steel member preparing step of preparing a steel member for suppressing the carbon content and the chromium content, a heat treatment step, and a finishing step. The heat treatment step includes a carbo-nitiriding step of heating and carbo-nitiriding the steel member, a hardening step of performing the hardening by cooling the steel member at the temperature below M
S point, a high-temperature tempering step of performing the tempering by heating the steel member at the temperature of ≥650°C and 1 point, and an induction hardening step of performing the induction hardening of a high-hardness area of the steel member without any hardening of a low-hardness area other than the high-hardness area including an area to be formed as a rolling surface of the track member.
COPYRIGHT: (C)2008,JPO&INPITAbstract translation: 要解决的问题：为了提供一种能够抑制制造成本增加的轨道构件的制造方法，充分提高包括滚动面的区域的硬度，通过赋予高电阻确保足够的滚动疲劳寿命 抵抗滚动疲劳，并一致地控制塑性变形区域的硬度。 解决方案：制造轨道构件的方法包括制备用于抑制碳含量和铬含量的钢构件的钢构件制备步骤，热处理步骤和精加工步骤。 热处理步骤包括对钢构件进行加热和碳氮化的碳氮化步骤，通过在低于M
S点的温度下冷却钢构件进行硬化的硬化步骤， 温度回火步骤，通过在≥650℃和<650℃，低于A1 点的温度加热钢构件进行回火，以及进行感应淬火的感应淬火步骤 钢构件的高硬度区域，除了包括要形成为轨道构件的滚动表面的区域的高硬度区域之外，没有任何硬度低硬度区域的硬化。 版权所有（C）2008，JPO＆INPIT
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