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    STEEL MEMBER HAVING NITROGEN COMPOUND LAYER AND PROCESS FOR PRODUCING SAME
    1.
    发明申请
    STEEL MEMBER HAVING NITROGEN COMPOUND LAYER AND PROCESS FOR PRODUCING SAME 审中-公开
    具有氮化合物层的钢构件及其制造方法

    公开(公告)号：US20120118434A1

    公开(公告)日：2012-05-17

    申请号：US13387224

    申请日：2010-07-28

    Applicant: Tomoyoshi Konishi ,  Yoshihiro Ikeda

    Inventor： Tomoyoshi Konishi ,  Yoshihiro Ikeda

    IPC: C23C8/32 ,  C09D5/08 ,  C23C8/76 ,  B32B15/04 ,  C23C8/26 ,  C23C8/62

    CPC classification number: C23C8/80 ,  C21D1/06 ,  C21D1/10 ,  C21D1/26 ,  C21D1/78 ,  C21D2211/008 ,  C23C8/26 ,  C23C8/38 ,  C23C8/50 ,  C23C8/56 ,  C23C22/73 ,  Y02P10/253

    Abstract: A process for duplex heat treatment of combined nitriding treatment and induction quenching treatment on an iron and steel material includes a chemical conversion treatment step for forming a chemical conversion film on a nitrogen compound layer formed on the iron and steel material by the nitriding treatment, after the nitriding treatment and before the induction quenching treatment. A compound layer formed on a surface of an iron and steel material by nitriding treatment is prevented from being oxidized by induction quenching, so that unevenness in film thickness between different portions of an oxidization-inhibiting film does not easily occur, with the result that a nitrogen-containing compound layer obtained after high-frequency heating remain uniformly.

    Abstract translation: 一种用于钢铁材料的组合氮化处理和感应淬火处理的双相热处理方法包括：化学转化处理步骤，用于通过氮化处理在通过氮化处理形成在钢铁材料上的氮化合物层上形成化学转化膜 氮化处理和感应淬火处理前。 通过氮化处理在钢铁材料表面形成的复合层被防止被感应淬火氧化，从而不易发生氧化抑制膜的不同部分之间的膜厚不均匀，结果是 高频加热后得到的含氮化合物层保持均匀。

    Bearing part, bearing, and method for inspecting bearing part
    3.
    发明授权
    Bearing part, bearing, and method for inspecting bearing part 有权
    轴承部件，轴承和检查轴承部件的方法

    公开(公告)号：US09032783B2

    公开(公告)日：2015-05-19

    申请号：US13637954

    申请日：2011-03-29

    Applicant: Chikara Ohki

    Inventor： Chikara Ohki

    IPC: F16C29/00 ,  C23C8/32 ,  C21D1/06 ,  C21D9/40 ,  F16C33/62 ,  F16C33/64 ,  F16C33/32 ,  C23C8/56 ,  C23C8/76 ,  C23C8/80

    CPC classification number: C23C8/32 ,  C21D1/06 ,  C21D9/40 ,  C23C8/56 ,  C23C8/76 ,  C23C8/80 ,  F16C33/32 ,  F16C33/62 ,  F16C33/64 ,  F16C2202/04 ,  F16C2204/66 ,  F16C2223/16 ,  F16C2240/06 ,  F16C2240/08 ,  F16C2240/40 ,  F16C2240/60

    Abstract: An inspection method which quantitatively and simply assures a nitrogen concentration in a carbonitriding-treated bearing part, and a bearing part and a bearing for which a nitrogen concentration is quantitatively assured are obtained. An inner race, an outer race, and balls as bearing parts are each a bearing part made of JIS standard SUJ2 and having a carbonitrided layer formed in a surface thereof, wherein, after heat treatment at a heating temperature of 500° C. for a retention time of one hour is performed, a Vickers hardness at a position with a depth of 30 μm from the surface is higher than a Vickers hardness at a core portion, which is a region where the carbonitrided layer is not formed in a thickness direction of the bearing part, by not less than 130 HV.

    Abstract translation: 获得了定量地且简单地确保碳氮共渗处理的轴承部分中的氮浓度以及定量确定氮浓度的轴承部分和轴承的检查方法。 内圈，外圈和滚珠作为轴承部分都是由JIS标准SUJ2制成的轴承部件，在其表面形成有碳氮共渗层，其中在加热温度为500℃的热处理后，对于 进行1小时的保留时间，距离表面深度为30μm的位置处的维氏硬度高于在不形成碳氮共渗层的区域的芯部的维氏硬度 轴承部分，不低于130HV。

    Noveske rifleworks extreme duty machine gun barrel
    6.
    发明申请
    Noveske rifleworks extreme duty machine gun barrel 审中-公开
    诺维斯克步枪超级机枪枪枪

    公开(公告)号：US20100282369A1

    公开(公告)日：2010-11-11

    申请号：US12005984

    申请日：2007-12-28

    Applicant: John Noveske

    Inventor： John Noveske

    IPC: C23C8/76 ,  C23C8/62 ,  C23C8/02

    CPC classification number: C23C8/02 ,  C23C8/34 ,  C23C8/48

    Abstract: An improved method for producing barrels which need to operate at temperatures exceeding 800 degrees for prolonged periods of time. The method described is ideally suited for barrels which are a part of a crew served weapons, belt feed systems or other fully automatic weapons. My method has limited effect on the accuracy potential of the barrel produced and therefore should not be excluded from use on shoulder fired weapons and precision rifles.

    Abstract translation: 一种用于生产桶的改进方法，其需要在超过800度的温度下长时间运行。 所描述的方法非常适用于作为船员服役的武器，皮带进给系统或其他全自动武器的一部分的桶。 我的方法对所生产的桶的准确度潜力有限，因此不应将其排除在肩扛武器和精密步枪上。

    Thermochemical treatment of thin-walled structural steel elements
    7.
    发明授权
    Thermochemical treatment of thin-walled structural steel elements 失效
    薄壁结构钢元素的热化学处理

    公开(公告)号：US5571341A

    公开(公告)日：1996-11-05

    申请号：US403273

    申请日：1995-03-13

    Applicant: Dieter Jackel

    Inventor： Dieter Jackel

    IPC: C23C8/76 ,  C23C8/32 ,  F16C33/14 ,  F16C33/44 ,  F16C33/54 ,  F16C33/56 ,  F16C33/62 ,  C22C38/00

    CPC classification number: F16C33/14 ,  C23C8/32 ,  F16C33/56 ,  F16C33/62

    Abstract: A process for the thermochemical treatment of thin-walled structural elements made of steel comprising enriching an edge zone of a thin-walled structural element with nitrogen and carbon at 590.degree. to 700.degree. C. to harden the edge zone whereby an intermediate layer (3) is formed in the diffusion zone (2), said intermediate layer comprising 1 to 3% by weight of nitrogen and at most 0.8% by weight of carbon and cooling the said thin-walled structural element under an inert atmosphere at a rate of 50.degree. to 100.degree. C. per minute to room temperature to form a nitrogen austenite and/or braunite phase between the connection layer (1) and the basic structure (4) with increased fatigue strength.

    Abstract translation: 一种用于热处理由钢制成的薄壁结构元件的方法，包括在590℃至700℃下用氮和碳富集薄壁结构元件的边缘区域以使边缘区域硬化，由此中间层（3 ）形成在扩散区（2）中，所述中间层包含1至3重量％的氮和至多0.8重量％的碳，并在惰性气氛下以50的速率冷却所述薄壁结构元件 DEG至100℃/分钟至室温，以在连接层（1）和碱性结构（4）之间形成具有增加的疲劳强度的氮奥氏体和/或乳液相。

    Lubrication improvements via diffusion
    8.
    发明授权
    Lubrication improvements via diffusion 失效
    润滑改善通过扩张

    公开(公告)号：US3629012A

    公开(公告)日：1971-12-21

    申请号：US3629012D

    申请日：1968-09-05

    Applicant: SUN OIL CO

    Inventor： KOHN EDWARD M

    IPC: C23C8/42 ,  C23C8/52 ,  C23C8/76 ,  C23C26/00 ,  C23F7/24

    CPC classification number: C23C8/42 ,  C23C8/52 ,  C23C8/76 ,  C23C26/00

    Abstract: The extreme pressure properties of ferrous metals can be increased by coating the metal with iron sulfide or chloride or mixtures thereof then heat treating the coated metal at a temperature in the range of 900*-2,000* F. for 1/2 to 24 hours. When metal Falex pins and jaws are treated in the above fashion they have longer running times, i.e., up to 11 times, than untreated pins and jaws under the same conditions in a standard Falex testing apparatus.

    Surface Treatment Process
    9.
    发明申请
    Surface Treatment Process 审中-公开

    公开(公告)号：US20190284653A1

    公开(公告)日：2019-09-19

    申请号：US16302383

    申请日：2017-05-17

    Applicant: Commonwealth Steel Company Pty Ltd

    Inventor： Veena Sahajwalla ,  Farshid Pahlevani

    IPC: C21D1/06 ,  C23C8/66 ,  C23C8/76

    Abstract: A method of hardening a surface of a ferro-alloy object, the method comprising at least partially gasifying a carbon-containing polymer to form a hardening material source; and exposing the object to the hardening material source, such that the hardening material source and the surface of the object react, thereby hardening the surface of the object.

    Surface treatment of a metal part
    10.
    发明授权
    Surface treatment of a metal part 有权
    金属部件的表面处理

    公开(公告)号：US09382609B2

    公开(公告)日：2016-07-05

    申请号：US14126602

    申请日：2012-06-18

    Applicant: Tony Prezeau ,  Teddy Muller ,  Michel Baron ,  Joan Samuel ,  Emmanuel Dransart

    Inventor： Tony Prezeau ,  Teddy Muller ,  Michel Baron ,  Joan Samuel ,  Emmanuel Dransart

    IPC: C23C8/02 ,  C23C8/32 ,  C23C8/38 ,  C21D7/06 ,  C23C8/76 ,  B82Y30/00 ,  C21D7/04

    CPC classification number: C23C8/76 ,  B82Y30/00 ,  C21D7/04 ,  C21D7/06 ,  C21D2201/00 ,  C21D2201/03 ,  C21D2211/004 ,  C23C8/02 ,  C23C8/32 ,  C23C8/38

    Abstract: A process for the surface treatment of a metal part comprises:exposing a surface (1) of the metal part to a stream of substantially spherical particles, so that any portion of said surface receives said particles along several primary incidences, the primary incidences of the particles on a portion of the surface being essentially distributed in a cone or a conical film which has an outer half apex angle between 10° and 45°, until a surface layer (3) of nanostructures having an average thickness of several tens of microns is obtained, the particles having a diameter of less than 2 mm and greater than 0.1 mm and being projected at a speed between 40 m/s and 100 m/s. A thermochemical treatment is then applied, in particular a low-temperature treatment of the nitriding type or a high-temperature treatment of the low-pressure carbonitriding type.

    Abstract translation: 用于金属部件的表面处理的方法包括：将金属部件的表面（1）暴露于基本上为球形的颗粒的流中，使得所述表面的任何部分沿着几个主要入射点接收所述颗粒，主要发生 表面部分上的颗粒基本上分布在具有10°至45°之间的外半顶角的圆锥或圆锥形膜中，直到具有几十微米平均厚度的纳米结构的表面层（3）为 所述颗粒具有小于2mm且大于0.1mm的直径并以40m / s至100m / s的速度投影。 然后进行热化学处理，特别是氮化型的低温处理或低压碳氮共渗型的高温处理。

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