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    Aqueous treating solution for forming black trivalent-chromium chemical conversion coating on zinc or zinc alloy and method of forming black trivalent-chromium chemical conversion coating
    22.
    发明授权
    Aqueous treating solution for forming black trivalent-chromium chemical conversion coating on zinc or zinc alloy and method of forming black trivalent-chromium chemical conversion coating 有权
    用于在锌或锌合金上形成黑色三价铬化学转化涂层的水处理溶液和形成黑色三价铬化学转化涂层的方法

    公开(公告)号：US09157154B2

    公开(公告)日：2015-10-13

    申请号：US12200209

    申请日：2008-08-28

    申请人： Manabu Inoue

    发明人： Manabu Inoue

    IPC分类号： C23C22/30 ,  C23C22/07 ,  C23C22/46 ,  C23C22/83

    CPC分类号： C23C22/30 ,  C23C22/46 ,  C23C22/83 ,  C23C2222/10

    摘要： A treating solution for forming on a surface of either zinc or a zinc alloy a hexavalent-chromium-free trivalent-chromium chemical conversion coating which has an even black appearance and satisfactory corrosion resistance. The treating solution has a long treating-bath life. Also provided is a method of forming a black trivalent-chromium chemical conversion coating. The aqueous treating solution, which is for forming a black trivalent-chromium chemical conversion coating on zinc or a zinc alloy, contains trivalent chromium ions, a phosphoric ester and/or phosphorous ester, and a sulfur compound. The method is a method of chemically treating zinc or a zinc alloy which comprises using the aqueous treating solution to chemically treat the zinc or zinc alloy at a solution temperature of 10-60° C., whereby a black trivalent-chromium chemical conversion coating is formed on the zinc or zinc alloy. Furthermore provided is a coated zinc or zinc alloy metal which comprises zinc or a zinc alloy and, formed thereon, a black trivalent-chromium chemical conversion coating formed by a chemical treatment with the aqueous treating solution.

    摘要翻译： 用于在锌或锌合金的表面上形成具有均匀黑色外观和令人满意的耐腐蚀性的无六价铬三价铬化学转化涂层的处理溶液。 处理液的处理时间长。 还提供了形成黑色三价铬化学转化膜的方法。 用于在锌或锌合金上形成黑色三价铬化学转化涂层的水处理溶液含有三价铬离子，磷酸酯和/或磷酸酯和硫化合物。 该方法是一种化学处理锌或锌合金的方法，其中包括使用水处理溶液在10-60℃的溶液温度下化学处理锌或锌合金，由此黑色三价铬化学转化膜为 形成在锌或锌合金上。 此外，还提供了包含锌或锌合金的涂层锌或锌合金金属，并在其上形成通过用水处理溶液的化学处理形成的黑色三价铬化学转化膜。

    Processing solution for forming hexavalent chromium free and corrosion resistant conversion film on zinc or zinc alloy plating layers, hexavalent chromium free and corrosion resistant conversion film, method for forming the same
    24.
    发明授权
    Processing solution for forming hexavalent chromium free and corrosion resistant conversion film on zinc or zinc alloy plating layers, hexavalent chromium free and corrosion resistant conversion film, method for forming the same 有权
    用于在锌或锌合金镀层上形成六价铬无腐蚀转化膜的加工溶液，六价铬无腐蚀转化膜，其形成方法

    公开(公告)号：US07914627B2

    公开(公告)日：2011-03-29

    申请号：US12784570

    申请日：2010-05-21

    申请人： Katsuhide Oshima ,  Shigemi Tanaka ,  Manabu Inoue ,  Tomitaka Yamamoto

    发明人： Katsuhide Oshima ,  Shigemi Tanaka ,  Manabu Inoue ,  Tomitaka Yamamoto

    IPC分类号： C23C22/46 ,  C23C22/53

    CPC分类号： C23C22/46 ,  C23C22/47 ,  C23C2222/10 ,  Y10T428/12583 ,  Y10T428/12792 ,  Y10T428/12799

    摘要： A processing solution for forming a hexavalent chromium free, corrosion resistant trivalent chromate conversion film on zinc or zinc alloy plating layers comprises: trivalent chromium and oxalic acid in a molar ratio ranging from 0.5/1 to 1.5/1, wherein the trivalent chromium is present in the form of water-soluble complex with oxalic acid; and cobalt ions, which do not form a hardly soluble metal salt with oxalic acid and are stably present in the processing solution without causing any precipitation; wherein the solution reacts with zinc when bringing it into contact with the zinc or zinc alloy plating to form a hexavalent chromium free, corrosion resistant, trivalent chromate conversion film containing zinc, chromium, cobalt, oxalic acid and silicon on the plating. The film is quite thin, free of any hexavalent chromium, has corrosion resistance identical to or higher than that achieved by the conventional hexavalent chromium-containing film and can be formed using a processing solution having a quite low concentration.

    摘要翻译： 一种用于在锌或锌合金镀层上形成六价铬无铬耐腐蚀三价铬酸盐转化膜的处理溶液包括：摩尔比为0.5 / 1至1.5 / 1的三价铬和草酸，其中存在三价铬 以草酸的水溶性复合物的形式; 和钴离子，其不与草酸形成难溶的金属盐，并且稳定地存在于处理溶液中而不引起任何沉淀; 其中当与锌或锌合金镀层接触时，溶液与锌反应，以在镀层上形成含有锌，铬，钴，草酸和硅的六价铬，耐腐蚀的三价铬酸盐转化膜。 该膜相当薄，没有任何六价铬，具有与常规六价铬含量膜相同或更高的耐腐蚀性，并且可以使用浓度非常低的处理溶液形成。

    Process for producing an ornamental rust finish on a ferrous metal surface
    25.
    发明授权
    Process for producing an ornamental rust finish on a ferrous metal surface 失效
    在黑色金属表面生产装饰性防锈涂层的方法

    公开(公告)号：US5728236A

    公开(公告)日：1998-03-17

    申请号：US547227

    申请日：1995-10-24

    申请人： Patrick A. Rundhaug

    发明人： Patrick A. Rundhaug

    IPC分类号： B44C1/00 ,  C23C22/46 ,  C23C22/50

    CPC分类号： C23C22/50 ,  B44C1/005 ,  C23C22/46

    摘要： A chemically derived product that rusts metal instantly upon contacting the surface of a metal and which can be easily and safely used by ornamental metal craftpersons. The chemically derived product is a liquid compound that contains the following constituents: (a) 93.0% by weight of water; (b) up to 5.0% by weight of a copper salt, the copper salt being selected from a copper salt group consisting of copper sulfate, copper nitrate, and copper chloride; and (c) a remaining amount consisting of an acid compound selected from an acid compound group consisting of sulfamic acid, oxalic acid, hydrochloric acid and nitric acid. The liquid compound can be particularly formulated for oxidizing steel or copper and may be produced having a predetermined coloring dye constituent selected from a color dye group consisting of copper, auburn, or gold, if oxidizing steel, or a color dye selected from a color dye group consisting of patina, aqua blue, or green, if oxidizing copper.

    摘要翻译： 一种化学衍生的产品，在接触金属表面时立即生锈，可以通过装饰金属工匠轻松安全地使用金属。 化学衍生的产品是含有以下组分的液体化合物：（a）93.0重量％的水; （b）最多5.0重量％的铜盐，所述铜盐选自由硫酸铜，硝酸铜和氯化铜组成的铜盐组; 和（c）由选自由氨基磺酸，草酸，盐酸和硝酸组成的酸化合物组中的酸化合物组成的剩余量。 液体化合物可以特别配制用于氧化钢或铜，并且可以制备具有预定的着色染料成分，所述着色染料成分选自由铜，铝或金组成的着色染料组合，如果氧化钢，或选自染色剂 如果氧化铜，则由铜绿，水蓝或绿色组成。

    Chromium-free or low-chromium metal surface passivation
    26.
    发明授权
    Chromium-free or low-chromium metal surface passivation 失效
    无铬或低铬金属表面钝化

    公开(公告)号：US4298404A

    公开(公告)日：1981-11-03

    申请号：US72988

    申请日：1979-09-06

    申请人： Joseph L. Greene

    发明人： Joseph L. Greene

    IPC分类号： C23C22/27 ,  C23C22/34 ,  C23C22/37 ,  C23C22/40 ,  C23C22/46 ,  C23C22/48 ,  C23C9/00

    CPC分类号： C23C22/46 ,  C23C22/34 ,  C23C22/40

    摘要： Substrates, especially those having plated metal surfaces, and subjected to passivation treatments in baths that incorporate one or more film-forming agents at least one of which does not require chromium and includes anions or cations of elements other than chromium. Typically, the anions or cations are introduced as bath-soluble salts which react with the plated surface of the substrate to form an adherent, coherent passivation surface film. Also present within these baths are a source of hydrogen ions and a bath-soluble carboxylic acid or derivative activator for enhancing the rate of the passivation reaction. Articles passivated in baths incorporating these film-forming agents have a hydrophobic surface that exhibits corrosion resistance and that typically has a bright finish.

    摘要翻译： 底物，特别是具有电镀金属表面的那些，并在浴中进行钝化处理，其中包含一种或多种成膜剂，其中至少一种不需要铬，并且包括铬以外的元素的阴离子或阳离子。 通常，将阴离子或阳离子引入作为浴溶性盐，其与基底的电镀表面反应以形成粘附的相干钝化表面膜。 在这些浴中还存在氢离子源和可溶于水的羧酸或衍生物活化剂，用于提高钝化反应的速率。 掺入这些成膜剂的浴中钝化的物品具有表现出耐腐蚀性并且通常具有光亮光洁度的疏水性表面。

    Formation of oxide coating on surface of a magnetic cobalt nickel alloy
    27.
    发明授权
    Formation of oxide coating on surface of a magnetic cobalt nickel alloy 失效
    在钴钴镍合金表面形成氧化物涂层

    公开(公告)号：US3674554A

    公开(公告)日：1972-07-04

    申请号：US3674554D

    申请日：1970-07-23

    申请人： NCR CO

    发明人： PATEL PRAVIN K ,  STONE ELIOT

    IPC分类号： C23C22/46 ,  C23C22/58 ,  G11B5/72 ,  H01F10/00

    CPC分类号： C23C22/46 ,  C23C22/58 ,  G11B5/72

    摘要： A PROTECTIVE OXIDE FILM MAY BE LOCATED ON THE SURFACE OF A COBALT NICKEL MAGNETIC ALLOY BY TREATING THE SURFACE OF SUCH AN ALLOY WITH AN AQUEOUS SOLUTION OF AN INORGANIC OXIDIZING AGENT AND AN ORGANIC CHELATING AGENT CAPABLE OF BUFFERING THE SOLUTION SO AS TO OXIDIZE THE SURFACE. SUCH TREATMENT IS PREFERABLY CARRIED ON FOR SUFFICIENTLY LONG PERIODS TO FORM AN ADHERENT, SUBSTANTIALLY CONTINUOUS OXIDE LAYER FORM METAL IN THE ALLOY. THE CONCENTRATION OF THE INGREDIENTS IN THE TREATMENT SOLUTION CAN BE VARIED DEPENDING UPON THE SPECIFIC INGREDIENTS USED, THE REATTIVITY OF THE PARTICULAR ALLOY BEING TREATED, THE TEMPERATURE OF THE TREATMENT SOLUTION AND THE THICKNESS OF THE OXIDE FILM DESIRED. AFTER SUCH TREATMENT THE ALLOY SURFACE IS PREFERABLY WASHED SO AS TO REMOVE ENTRAINED INGREDIENTS AND THEN IS PREFERABLY HEATED AT A TEMPERATURE OF FROM 230 TO 280*C. FOR A PERIOD OF FROM ONE-HALF TO FOUR HOURS IN EITHER AN INERT ATMOSPHERE, AN OXYGEN ATMOSPHERE OR AN ATMOSPHERE CONTAINING OXYGEN AND ONE OR MORE INERT OR SUBSTANTIALLY INERT GASES.