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51 条记录 (耗时 0.032 秒)

    Heat treatment furnace
    4.
    发明授权
    Heat treatment furnace 有权
    热处理炉

    公开(公告)号：US08444912B2

    公开(公告)日：2013-05-21

    申请号：US12675958

    申请日：2008-06-19

    申请人： Chikara Ohki

    发明人： Chikara Ohki

    IPC分类号： C23C8/32

    CPC分类号： C23C8/00 ,  C21D1/06 ,  C21D1/76 ,  C21D9/40 ,  C23C8/06 ,  F27B9/04 ,  F27D7/06 ,  F27D21/00

    摘要： A heat treatment furnace that allows the atmosphere in the heat treatment furnace to be controlled with favorable accuracy includes a second heating zone identified as a reaction chamber, having a floor belt to hold a workpiece, and an atmosphere collect pipe having an opening in the second heating zone to collect an atmosphere in the second heating zone through the opening. The atmosphere collect pipe is installed to allow the distance between the opening and the floor belt to be modified.

    摘要翻译： 能够以良好的精度控制热处理炉中的气氛的热处理炉包括：被识别为反应室的第二加热区，具有用于保持工件的地板带，以及在第二加热区中具有开口的气氛收集管 加热区以通过开口收集第二加热区中的气氛。 大气采集管被安装以允许开口和地板带之间的距离被修改。

    Mechanical component and rolling bearing
    5.
    发明授权
    Mechanical component and rolling bearing 有权
    机械部件和滚动轴承

    公开(公告)号：US08337089B2

    公开(公告)日：2012-12-25

    申请号：US12744665

    申请日：2008-11-21

    申请人： Chikara Ohki ,  Kazuhiro Yagita ,  Takashi Ito ,  Hiroshi Morishita

    发明人： Chikara Ohki ,  Kazuhiro Yagita ,  Takashi Ito ,  Hiroshi Morishita

    IPC分类号： F16C33/32 ,  F16C33/58 ,  C23C8/26

    CPC分类号： F16C33/32 ,  C21D1/06 ,  C21D1/09 ,  C21D1/78 ,  C21D6/04 ,  C21D9/36 ,  C21D9/40 ,  C21D2211/004 ,  C22C38/02 ,  C22C38/04 ,  C22C38/44 ,  C22C38/46 ,  C23C8/26 ,  C23C8/38 ,  F16C33/34 ,  F16C33/62 ,  F16C2204/64 ,  F16D3/224 ,  F16D2250/00 ,  F16D2300/10 ,  Y02T50/67 ,  Y10T74/1836

    摘要： An outer ring, an inner ring and a ball serving as mechanical components configuring a deep groove ball bearing are formed of steel containing at least 0.77 mass % and not more than 0.85 mass % of carbon, at least 0.01 mass % and not more than 0.25 mass % of silicon, at least 0.01 mass % and not more than 0.35 mass % of manganese, at least 0.01 mass % and not more than 0.15 mass % of nickel, at least 3.75 mass % and not more than 4.25 mass % of chromium, at least 4 mass % and not more than 4.5 mass % of molybdenum and at least 0.9 mass % and not more than 1.1 mass % of vanadium with a remainder consisting of iron and impurity, and have raceway/rolling contact surfaces, the surface being included in a region having a nitrogen enriched layer having a nitrogen concentration of at least 0.05 mass %, the nitrogen enriched layer having a carbon concentration and the nitrogen concentration, in total, of at least 0.82 mass % and not more than 1.9 mass %.

    摘要翻译： 构成深沟球轴承的作为机械部件的外圈，内圈和球由含有至少0.77质量％且不大于0.85质量％的碳，至少0.01质量％且不大于0.25的钢形成 至少0.01质量％且不超过0.35质量％的锰，镍的至少0.01质量％且不大于0.15质量％，铬的至少3.75质量％且不大于4.25质量％ 至少4质量％且不超过4.5质量％的钼和至少0.9质量％且不超过1.1质量％的余量由铁和杂质构成的钒，并且具有轨道/滚动接触表面，该表面包括 在具有至少0.05质量％的氮浓度的氮富集层的区域中，具有碳浓度和氮浓度的富氮层总计为至少0.82质量％且不大于1.9质量％。

    GAS SUPPLY DEVICE AND EXHAUST GAS POWER GENERATION SYSTEM
    6.
    发明申请
    GAS SUPPLY DEVICE AND EXHAUST GAS POWER GENERATION SYSTEM 审中-公开
    气体供应装置和排气发电系统

    公开(公告)号：US20120234008A1

    公开(公告)日：2012-09-20

    申请号：US13512761

    申请日：2010-11-26

    申请人： Chikara Ohki

    发明人： Chikara Ohki

    IPC分类号： F02C1/05 ,  F23J11/00

    CPC分类号： F02C9/16 ,  F02C1/05 ,  F02C6/18 ,  F27D17/004 ,  F27D17/008

    摘要： A gas supply device includes a first flow channel connecting a heat-treating furnace and a power generation device, a pressure control valve arranged in the first flow channel for controlling a pressure of exhaust gas flowing through the first flow channel, and a furnace pressure gauge measuring a pressure within the heat-treating furnace. If the pressure within the heat-treating furnace measured by the furnace pressure gauge becomes lower than a predetermined value, the pressure control valve controls the pressure of the exhaust gas to increase the pressure of the exhaust gas within the first flow channel.

    摘要翻译： 气体供给装置包括连接热处理炉和发电装置的第一流路，布置在第一流路中的压力控制阀，用于控制流过第一流路的废气的压力，以及炉压力计 测量热处理炉内的压力。 如果由炉压力计测量的热处理炉内的压力低于预定值，则压力控制阀控制废气的压力以增加第一流动通道内的排气的压力。

    Method of restrained-quenching of annular member
    7.
    发明授权
    Method of restrained-quenching of annular member 有权
    环形构件的限制淬火方法

    公开(公告)号：US08177928B2

    公开(公告)日：2012-05-15

    申请号：US12442030

    申请日：2007-08-21

    申请人： Chikara Ohki

    发明人： Chikara Ohki

    IPC分类号： C21D9/40

    CPC分类号： C21D9/40 ,  C21D1/18 ,  C21D1/673 ,  C21D9/08 ,  C21D2211/008

    摘要： A method of restrained-quenching of an annular member, that can readily ensure a sufficient effect of restraint, increase treatment efficiency of a quench hardening treatment, and suppress production cost of the annular member, includes a heating step, a first cooling step, a restraint step, and a second cooling step. In the heating step, a bearing ring formed as the annular member is heated to a temperature not lower than an A1 point. In the first cooling step, the bearing ring is cooled to a first cooling temperature not higher than an MS point. In the restraint step, the bearing ring is restrained with a restraint member. In the second cooling step, the bearing ring is cooled to a second cooling temperature lower than a restraint start temperature while it remains restrained. Then, in the restraint step and the second cooling step, the bearing ring is restrained at a ridgeline portion without the bearing ring and the restraint member being in contact with each other at an outer circumferential surface and an end surface of the bearing ring.

    摘要翻译： 可以容易地确保充分的约束效果的环形构件的抑制淬火的方法，提高淬火硬化处理的处理效率并抑制环状构件的制造成本，包括加热工序，第一冷却工序， 约束步骤和第二冷却步骤。 在加热步骤中，将形成为环形构件的轴承环加热至不低于A1点的温度。 在第一冷却步骤中，将轴承环冷却至不高于MS点的第一冷却温度。 在约束步骤中，用限制件约束轴承圈。 在第二冷却步骤中，轴承环被冷却至低于限制开始温度的第二冷却温度，同时其保持约束。 然后，在约束步骤和第二冷却步骤中，轴承环被限制在棱线部分，而轴承环和约束件在轴承环的外周表面和端面处彼此接触。

    Rolling bearing and heat treatment method for steel
    8.
    发明申请
    Rolling bearing and heat treatment method for steel 失效
    钢的滚动轴承和热处理方法

    公开(公告)号：US20070169850A1

    公开(公告)日：2007-07-26

    申请号：US10586299

    申请日：2005-01-11

    申请人： Chikara Ohki ,  Kohei Fujita

    发明人： Chikara Ohki ,  Kohei Fujita

    IPC分类号： C23C8/00 ,  C23C22/00

    CPC分类号： C22C38/18 ,  C21D1/18 ,  C21D1/78 ,  C21D9/36 ,  C21D9/40 ,  C22C38/02 ,  C22C38/04 ,  C23C8/26 ,  F16C33/30 ,  F16C33/62 ,  F16C33/64 ,  F16C2240/90

    摘要： There is provided a rolling bearing which has long life against rolling fatigue and exhibits no decrease in fracture strength and no increase in rate of dimensional change over time, even if the part size thereof is large, and which can obtain higher strength by crystal grains being further refined, if it has a size equal to or smaller than a prescribed size. The rolling bearing according to the present invention includes a race and a rolling element. At least one member of the race and the rolling element has a nitrogen-enriched layer in its surface layer, and a surface layer portion contains austenite crystal grains having a grain size number of at least 11. The member has hardenability allowing a position exhibiting HRC50 in a hardenability test method for steel to be apart from a quenched end by a distance of at least 12.7 mm ( 8/16 inch).

    摘要翻译： 提供了一种滚动轴承，其寿命长于滚动疲劳，即使部件尺寸大，断裂强度也不降低，尺寸变化率也没有增加，并且可以通过晶粒获得更高的强度 进一步细化，如果其尺寸等于或小于规定尺寸。 根据本发明的滚动轴承包括座圈和滚动元件。 该种族和滚动体的至少一个构件在其表面层中具有富氮层，表层部分含有晶粒数至少为11的奥氏体晶粒。该构件具有淬透性，允许显示HRC50的位置 在淬硬性试验方法中，钢的淬火端距离至少12.7mm（8/16英寸）。

    Rolling bearing
    9.
    发明申请
    Rolling bearing 有权
    滚动轴承

    公开(公告)号：US20070151633A1

    公开(公告)日：2007-07-05

    申请号：US10570345

    申请日：2004-09-30

    申请人： Chikara Ohki ,  Kikuo Maeda

    发明人： Chikara Ohki ,  Kikuo Maeda

    IPC分类号： C22C38/00 ,  C23C8/26

    CPC分类号： C23C8/80 ,  C23C8/26 ,  C23C8/32 ,  F16C33/32 ,  F16C33/62 ,  F16C33/64

    摘要： A rolling bearing (10) having an outer ring (1), an inner ring (2), and a plurality of rolling elements, wherein at least one of the members, the outer ring (1), inner ring (2) and rolling elements (3), has a nitrogen rich layer and the grain size number of austenite crystal grains is in the range exceeding the number 10.

    摘要翻译： 一种具有外圈（1），内圈（2）和多个滚动元件的滚动轴承（10），其中至少一个构件，外圈（1），内圈（2）和滚动 元素（3）具有富氮层，奥氏体晶粒的晶粒数在超过数10的范围内。