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    Process of making surface alloyed parts
    81.
    发明授权
    Process of making surface alloyed parts 失效
    制作表面合金零件的工艺

    公开(公告)号：US4372995A

    公开(公告)日：1983-02-08

    申请号：US271128

    申请日：1981-06-08

    Applicant: John J. Rausch ,  Ray J. Van Thyne

    Inventor： John J. Rausch ,  Ray J. Van Thyne

    IPC: C23C2/10 ,  C23C10/22 ,  C23C12/02 ,  C23C1/08 ,  C23C1/10

    CPC classification number: C23C12/02 ,  C23C10/22 ,  C23C2/10

    Abstract: Predetermined diffusing elements such as chromium and/or aluminum are diffused into the surface of a ferrous-based part while preventing, or at least minimizing, bonding of portions of such part to each other or to a fixture with which the part is processed, by constructing the fixture of a barrier material or placing a barrier layer between the member and the part. The barrier has a composition to substantially preclude diffusion therein of the predetermined element and that is capable of withstanding a molten-lead alloy bath. Then the part is contacted by a molten alloy bath consisting essentially of lead and the diffusing elements. Thereafter, the part is separated from the member. The process finds particular use when the part is coiled sheet steel, in which case adjacent flights of coil are spaced by separator means which is made of a barrier material or carries a barrier layer.

    Abstract translation: 预定的扩散元素如铬和/或铝扩散到铁基部件的表面中，同时防止或至少最小化粘合这些部件的部分彼此或部件被加工的夹具，通过 构造阻挡材料的夹具或将阻挡层放置在构件和部件之间。 阻挡层具有基本上防止其中预定元件扩散并且能够耐受熔融铅合金浴的组成。 然后通过基本上由铅和扩散元件组成的熔融合金浴接触该部件。 此后，该部件与该部件分离。 当该部件是卷绕钢板时，该过程会发现特别的用途，在这种情况下，线圈的相邻翼片由隔离材料隔开或由阻挡材料制成或承载阻挡层隔开。

    Conductive corrosion resistant material and alkali metal/polysulfide battery employing same
    82.
    发明授权
    Conductive corrosion resistant material and alkali metal/polysulfide battery employing same 失效
    导电耐腐蚀材料和使用其的碱金属/多硫化物电池

    公开(公告)号：US4278708A

    公开(公告)日：1981-07-14

    申请号：US089818

    申请日：1979-10-31

    Applicant: Mati Mikkor ,  Samuel S. Shinozaki

    Inventor： Mati Mikkor ,  Samuel S. Shinozaki

    IPC: C23C12/02 ,  H01M4/66 ,  H01M10/39 ,  B05D5/12

    CPC classification number: C23C12/02 ,  H01M10/3909 ,  H01M4/66 ,  H01M4/661 ,  H01M4/664

    Abstract: A method of providing a substrate with a layer of a tertiary compound comprising silicon, silicon carbide and a transition series metal. In accordance with the method, a substrate having at least a surface layer thereon of a transition series metal is coated with silicon carbide particles having an average particle diameter in the range of up to about two microns. The coated substrate is then heated in an inert atmosphere to a temperature between 1000.degree. and 1300.degree. C. for sufficient time to allow diffusion to occur between the silicon carbide and the transition series metal layer, thereby forming the tertiary compound. Substrates coated with the tertiary compound are particularly suitable for preparation of alkali metal/polysulfide batteries wherein the substrate may be exposed to corrosive attack by molten polysulfide salts.

    Abstract translation: 提供具有包含硅，碳化硅和过渡系列金属的第三化合物层的衬底的方法。 根据该方法，至少在其上具有过渡系列金属的表面层的基材涂覆有平均粒径在最多约2微米范围内的碳化硅颗粒。 然后将涂覆的基材在惰性气氛中加热到1000-1300℃之间的温度足够的时间以允许在碳化硅和过渡金属层之间发生扩散，从而形成叔化合物。 用叔化合物涂覆的基材特别适用于制备碱金属/多硫化物电池，其中基材可能被熔融多硫化物盐暴露于腐蚀性侵蚀。

    Method for forming a carbide layer of a Va-Group element of the periodic table or chromium on the surface of a ferrous alloy article
    83.
    发明授权
    Method for forming a carbide layer of a Va-Group element of the periodic table or chromium on the surface of a ferrous alloy article 失效
    在铁基合金制品的表面上形成周期表的Va族元素或铬的碳化物层的方法

    公开(公告)号：US4158578A

    公开(公告)日：1979-06-19

    申请号：US902696

    申请日：1978-05-04

    Applicant: Noboru Komatsu ,  Tohru Arai

    Inventor： Noboru Komatsu ,  Tohru Arai

    IPC: C23C10/24 ,  C23C12/02 ,  C23C22/72 ,  C23C9/10

    CPC classification number: C23C12/02 ,  C23C10/24

    Abstract: A method for forming a boron-containing carbide layer on the surface of a ferrous alloy article by dipping the article in a molten bath. The bath is made by introducing boron and an oxide of a Va-Group element or of chromium into molten boric acid or a borate bath. The ratio of the boron to the oxide is between 7% and 40%. The carbide layer formed is very hard and has good oxidation resistance.

    Abstract translation: 一种通过将制品浸入熔融浴中在含铁合金制品的表面上形成含硼碳化物层的方法。 通过将硼和Va族元素或铬的氧化物引入熔融硼酸或硼酸盐浴中来制备浴。 硼与氧化物的比率为7％至40％。 形成的碳化物层非常硬并且具有良好的抗氧化性。

    Method of forming diffusion coatings
    84.
    发明授权
    Method of forming diffusion coatings 失效
    形成扩散涂层的方法

    公开(公告)号：US3787228A

    公开(公告)日：1974-01-22

    申请号：US19840371

    申请日：1971-11-12

    Applicant: SURFALLOY CORP

    Inventor： RAUSCH J ,  VAN THYNE R

    IPC: C23C10/22 ,  C23C12/02 ,  C23C9/00

    CPC classification number: C23C12/02 ,  C23C10/22

    Abstract: A method of diffusing elements into a ferrous substrate using molten lead as the transport medium for the elements being diffused. Such diffusion coatings containing chromium, cobalt, manganese, and other elements that improve corrosion resistance of ferrous materials have considerable utility.

    Abstract translation: 使用熔融铅作为扩散元件的输送介质将元素扩散到含铁基底中的方法。 这种含铬，钴，锰和其他提高黑色金属材料耐腐蚀性的元素的扩散涂层具有相当的实用价值。

    Method for altering surface of metal, and metallic product
    89.
    发明授权
    Method for altering surface of metal, and metallic product 有权

    公开(公告)号：US10156008B2

    公开(公告)日：2018-12-18

    申请号：US15510343

    申请日：2015-10-05

    Applicant: AIR WATER NV INC.

    Inventor： Hisao Fujikawa ,  Atsushi Miyamoto ,  Morihiro Fujita

    IPC: C22F1/10 ,  C23C8/26 ,  C23C12/00 ,  C21D1/06 ,  C23C8/24 ,  C23C8/02 ,  C23C8/08 ,  C23C8/80 ,  C23C10/02 ,  C23C10/28 ,  C23C10/30 ,  C23C10/32 ,  C23C10/34 ,  C23C10/36 ,  C23C12/02 ,  C23C28/00 ,  C22F1/00

    Abstract: Provide a metal surface reforming method enabling metallic products with superior characteristics such as surface hardness, heat resistance, corrosion resistance, high temperature oxidation, high temperature corrosion, and environmental corrosion and the like.Halogenation treatment of heating and retaining a base material in an atmosphere containing a halogen based gas is performed on a base material of iron based metal or nickel based metal, then nitride processing of heating and retaining the halogenated base material described above in an atmosphere containing a nitrogen source gas is performed, then chromizing treatment is performed by placing the nitrided base material in a powder containing metal chromium powder to form a surface reformed layer on the base material described above. These metallic products obtained have high hardness, superior heat resistance and corrosion resistance, and exhibit superior performance in high temperature oxidation, high temperature corrosion, erosion, and cavitation and the like environments. Further, the metallic products described above exhibit superior performance in acid or alkali environments, neutral environments, and corrosive environments such as chlorides like salt water.

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