SLURRY CHROMIZING COMPOSITIONS
    1.
    发明申请
    SLURRY CHROMIZING COMPOSITIONS 审中-公开
    浆糊成分

    公开(公告)号:US20160230263A1

    公开(公告)日:2016-08-11

    申请号:US15133829

    申请日:2016-04-20

    CPC classification number: C23C10/22 C23C10/18 C23C10/26 C23C10/30

    Abstract: Slurry coating composition for selectively enriching surface regions of a metal-based substrate, for example, the under-platform regions of a turbine blade, with chromium. The slurry coating composition contains metallic chromium, optionally metallic aluminum in a lesser amount by weight than chromium, and optionally other constituents. The composition further includes colloidal silica, and may also include one or more additional constituents, though in any event the composition is substantially free of hexavalent chromium and sources thereof. The coating composition can be used in a process that entails applying the coating composition to a surface region to form a slurry coating, and then heating the coating to remove any volatile components of the coating composition and thereafter cause diffusion of chromium from the coating into the surface region to form a chromium-rich diffusion coating.

    Abstract translation: 用于选择性地富集金属基底板(例如涡轮叶片的平台下区域)与铬的表面区域的浆料涂料组合物。 浆料涂料组合物包含金属铬,任选的金属铝,其重量比铬少,以及任选的其它成分。 组合物还包括胶体二氧化硅,并且还可以包括一种或多种另外的组分,尽管在任何情况下组合物基本上不含六价铬及其来源。 涂料组合物可以用于将涂料组合物施加到表面区域以形成浆料涂料的方法中,然后加热涂层以除去涂料组合物的任何挥发性组分,然后使铬从涂层扩散到 表面区域形成富铬扩散涂层。

    Insulator coating for high temperature alloys method for producing
insulator coating for high temperature alloys
    2.
    发明授权
    Insulator coating for high temperature alloys method for producing insulator coating for high temperature alloys 失效
    用于高温合金的绝缘子涂层用于生产用于高温合金的绝缘体涂层的方法

    公开(公告)号:US5769966A

    公开(公告)日:1998-06-23

    申请号:US674938

    申请日:1996-07-03

    Applicant: Jong Hee Park

    Inventor: Jong Hee Park

    CPC classification number: C23C8/40 C23C10/22 C23C2/02 C23C26/02

    Abstract: A method for fabricating an electrically insulating coating on a surface is disclosed comprising coating the surface with a metal, and reacting the metal coated surface with a nonmetal so as to create a film on the metal-coated surface. Alternatively, the invention provides for a method for producing a noncorrosive, electrically insulating coating on a surface saturated with a nonmetal comprising supplying a molten fluid, dissolving a metal in the molten fluid to create a mixture, and contacting the mixture with the saturated surface. Lastly, the invention provides an electrically insulative coating comprising an underlying structural substrate coated with an oxide or nitride compound

    Abstract translation: 公开了一种在表面上制造电绝缘涂层的方法,其包括用金属涂覆表面,并使金属涂覆的表面与非金属反应,以在金属涂覆的表面上产生膜。 或者,本发明提供一种用于在饱和非金属的表面上生产非腐蚀性电绝缘涂层的方法,包括供应熔融流体,将金属溶解在熔融流体中以产生混合物,并使混合物与饱和表面接触。 最后,本发明提供一种电绝缘涂层,其包括涂覆有氧化物或氮化物化合物的下面的结构基底

    Process for forming nitride protective coatings
    3.
    发明授权
    Process for forming nitride protective coatings 失效
    形成氮化物保护涂层的方法

    公开(公告)号:US5599404A

    公开(公告)日:1997-02-04

    申请号:US428570

    申请日:1995-04-25

    Inventor: Donald L. Alger

    CPC classification number: C23C8/02 C23C10/22 C23C26/00 C23C8/10 C23C8/20 C23C8/24

    Abstract: A substrate material to be coated with either a nitride, carbide, or oxide contains a small percent of a specific reactive element, like titanium, which forms very stable nitrides, carbides, or oxides. The material also contains larger percentages of elements, such as chromium, which form less-stable nitrides, carbides, or oxides. When the substrate material is immersed in a process medium which contains reactants, such as nitrogen, carbon, or oxygen, at a chosen elevated temperature and concentration, the less-stable nitrides, carbides, or oxides are reduced and cannot form a coating on the material surface. Thus, only a very stable nitride, carbide, or oxide can form a strong, adherent coating. As such, a stable compound forms on the surface, the surface concentration of the specific reactive element atoms (example: titanium) is depleted in relation to the atom concentration in the bulk material, and a concentration gradient results which causes more of the specific reactive element atoms to diffuse to the surface and react with the reactant in the process medium until a coating of the desired thickness is formed.

    Abstract translation: 用氮化物,碳化物或氧化物涂覆的衬底材料含有少量的诸如钛的比活性元素,其形成非常稳定的氮化物,碳化物或氧化物。 该材料还含有较大百分比的元素,例如形成较不稳定的氮化物,碳化物或氧化物的铬。 当基板材料在选定的升高的温度和浓度下浸入含有反应物(例如氮,碳或氧)的工艺介质中时,不稳定的氮化物,碳化物或氧化物被还原,并且不能在 材料表面。 因此,只有非常稳定的氮化物,碳化物或氧化物可以形成强的粘附涂层。 因此,在表面上形成稳定的化合物,特定反应性元素原子(例如:钛)的表面浓度相对于本体材料中的原子浓度而减少,并且导致更多的特定反应性的浓度梯度 元素原子扩散到表面并与处理介质中的反应物反应,直到形成所需厚度的涂层。

    Method of producing multicomponent diffusion coatings on metal articles
and apparatus for performing same
    5.
    发明授权
    Method of producing multicomponent diffusion coatings on metal articles and apparatus for performing same 失效
    在金属制品上生产多组分扩散涂层的方法和用于执行其的装置

    公开(公告)号:US4624871A

    公开(公告)日:1986-11-25

    申请号:US788467

    申请日:1985-10-17

    CPC classification number: C23C10/22 C23C10/26

    Abstract: A method of producing multicomponent diffusion coatings on metal articles mprises the steps of separately dissolving in a transport melt the alloying elements at temperature T equalling 0.5 to 0.8 of their respective melting points, and saturating with these alloying elements by diffusion the surface of a metal article at temperature T.sub.1 equalling 0.3 to 0.5 of the melting point of the material of this article, with the difference T-T.sub.1 being at least 50.degree. C. To perform this method, the apparatus comprises a central chamber for accommodating the transport melt and the metal article to be coated, and two (in one embodiment) peripheral chambers for accommodating the transport melt and the respective individual alloying elements, communicating via ducts. All the chambers and ducts have heating elements arranged thereon.

    Abstract translation: 在金属制品上制造多组分扩散涂层的方法包括以下步骤:在输送熔体中将合金元素分别溶解在各自熔点的等于0.5至0.8的温度T,并通过扩散金属制品的表面使这些合金元素饱和 温度T1等于该制品的材料熔点的0.3至0.5,差T-T 1至少为50℃。为了执行该方法,该装置包括用于容纳输送熔体和金属的中心室 以及两个(在一个实施例中)用于容纳运输熔体的周边室和通过管道连通的各个合金元件。 所有的腔室和管道都具有布置在其上的加热元件。

    Process for surface diffusing steel products in coil form
    6.
    发明授权
    Process for surface diffusing steel products in coil form 失效
    线性表面扩散钢产品的工艺

    公开(公告)号:US4526817A

    公开(公告)日:1985-07-02

    申请号:US538789

    申请日:1983-10-04

    CPC classification number: C23C10/26 C23C10/22 Y10T428/12854

    Abstract: Steel product in coil form such as sheet steel is uncoiled, then preheated, continuously transported through a lead bath containing chromium, then cooled, and finally recoiled. When the coiled steel does not have titanium, titanium is included in the bath in order to improve the corrosion resistance of the final product.

    Abstract translation: 钢板卷材等钢制品开卷,然后预热,通过含铬的铅浴连续输送,然后冷却,最后反冲。 当卷取钢不具有钛时,为了提高最终产品的耐腐蚀性,在浴中包含钛。

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