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    Method for providing uranium articles with a corrosion resistant anodized coating
    1.
    发明授权
    Method for providing uranium articles with a corrosion resistant anodized coating 失效
    为铀制品提供耐腐蚀阳极氧化涂层的方法

    公开(公告)号：US4325791A

    公开(公告)日：1982-04-20

    申请号：US222865

    申请日：1981-01-07

    申请人： Forrest B. Waldrop ,  Charles A. Washington

    发明人： Forrest B. Waldrop ,  Charles A. Washington

    IPC分类号： C25D11/28 ,  C25D11/34

    CPC分类号： C25D11/28

    摘要： Uranium articles are provided with anodized oxide coatings in an aqueous solution of an electrolyte selected from the group consisting of potassium phosphate, potassium hydroxide, ammonium hydroxide, and a mixture of potassium tetraborate and boric acid. The uranium articles are anodized at a temperature greater than about 75.degree. C. with a current flow of less than about 0.036 A/cm.sup.2 of surface area while the pH of the solution is maintained in a range of about 2 to 11.5. The pH values of the aqueous solution and the low current density utilized during the electrolysis prevent excessive dissolution of the uranium and porosity in the film or watering. The relatively high temperature of the electrolyte bath inhibits hydration and the attendant deleterious pitting so as to enhance corrosion resistance of the anodized coating.

    摘要翻译： 铀制品在选自磷酸钾，氢氧化钾，氢氧化铵和四硼酸钾和硼酸钾的混合物的电解质的水溶液中提供阳极化氧化物涂层。 铀制品在大于约75℃的温度下进行阳极氧化，电流小于约0.036A / cm 2的表面积，而溶液的pH值保持在约2至11.5的范围内。 水溶液的pH值和电解过程中使用的低电流密度可防止铀的过度溶解和膜中的孔隙率或浇水。 电解液浴的相对较高的温度抑制水合和伴随的有害点蚀，以增强阳极氧化涂层的耐腐蚀性。

    Electrolytic process and apparatus for the surface treatment of non-ferrous metals
    4.
    发明授权
    Electrolytic process and apparatus for the surface treatment of non-ferrous metals 有权

    公开(公告)号：US10941502B2

    公开(公告)日：2021-03-09

    申请号：US15964450

    申请日：2018-04-27

    申请人： METAL PROTECTION LENOLI INC.

    发明人： Onita Sintoma ,  Ovidiu Crisan

    IPC分类号： C25D11/10 ,  C25D11/30 ,  C25D17/12 ,  C25D17/10 ,  C25D11/26 ,  C25D11/28 ,  C25D11/02 ,  C25D17/06 ,  C25D11/34 ,  C25D11/16 ,  C25D11/24 ,  C25D11/22

    摘要： An electrolytic process, an electrolytic solution and electrolytic assembly are disclosed, for anodizing in one main step non-ferrous metallic parts, or their alloys to form a uniform coating. The electrolytic solution is free of toxic or harmful chemicals. Examples of treatable metals include aluminum, cast aluminum, magnesium, hafnium, tantalum, titanium, vanadium, and zirconium. The treatment is a one-step process since the cleaning and coating of the nonferrous metals are performed in the same electrolytic cell or tank and solution, preferably using the same electrical device for both actions. No preliminary steps like degreasing, de-smutting or activation are needed due to the absence of toxic acids or salts in the process. The process is therefore eco-friendly, easy to perform and provides excellent results. The non-ferrous metallic parts once coated can be used in the automotive or aircraft industries.

    Method of producing protective coatings
    6.
    发明授权
    Method of producing protective coatings 失效
    生产保护涂层的方法

    公开(公告)号：US4108736A

    公开(公告)日：1978-08-22

    申请号：US526915

    申请日：1974-11-25

    申请人： Serge Rigo ,  Julius Siejka

    发明人： Serge Rigo ,  Julius Siejka

    IPC分类号： C25D11/02 ,  H01C17/16 ,  C25D11/04 ,  C25D11/26 ,  C25D11/28 ,  C25D11/32

    CPC分类号： C25D11/02 ,  H01C17/16 ,  Y10T428/12549 ,  Y10T428/1259 ,  Y10T428/12597 ,  Y10T428/12618

    摘要： The invention relates to a method for forming surface coatings on a substrate by anodic oxidation, wherein the substrate contains, at least in those of its parts which are immediately sub-adjacent to its surface, at least one element selected from niobium, chromium, molybdenum, tungsten, titanium and vanadium, or a conducting compound containing such a first element, and at least one second element, different from the first, selected notably from silicon, aluminum, gallium, tantalum, uranium and molybdenum, either in the metallic state, if it constitutes itself a semi-conductor element, or even an insulator, or in the combined or alloyed state with at least one other element to form a semi-conductor compound, or even an insulator, said second element being flush at least in part at the surface of the substrate.The invention also relates to the coatings themselves and which comprise a superficial layer and an inner layer of an oxide of the first element separated by an intermediate layer containing an oxide of the second element.

    摘要翻译： 本发明涉及一种通过阳极氧化在基片上形成表面涂层的方法，其中至少在其与其表面紧邻的部分的基底中的至少一种选自铌，铬，钼 ，钨，钛和钒，或含有这种第一元素的导电化合物，以及不同于第一元素的至少一种第二元素，特别是选自硅，铝，镓，钽，铀和钼，金属状态， 如果其构成半导体元件或甚至绝缘体，或者与具有至少一个其它元件的组合或合金化状态构成半导体化合物或甚至绝缘体，则所述第二元件至少部分地齐平 在基板的表面。