公开(公告)号：US5217601A

公开(公告)日：1993-06-08

申请号：US894586

申请日：1992-06-05

申请人： Norio Nakada ,  Hideo Fukui ,  Hatsuo Hirono ,  Seishiro Ito

发明人： Norio Nakada ,  Hideo Fukui ,  Hatsuo Hirono ,  Seishiro Ito

IPC分类号： C25D11/22

CPC分类号： C25D11/22

摘要： Durable and clear blue color of freely controlled density can be expeditiously and efficiently impated to an anodic oxide film of aluminum by a method which comprises forming the anodic oxide film on the aluminum or aluminum alloy, then subjecting the aluminum or aluminum alloy to AC electrolysis in a bath containing an inorganic ferrous salt as a main component thereof thereby inducing deposition of iron in the pores of the oxide film, and subsequently placing the aluminum or aluminum alloy as an anode in a bath containing hexacyano iron (II) acid salt as a main component thereof and subjecting the same to DC electrolysis therein. In the alternative method, the pore-widening treatment is added next to said step of anodic oxidation. The pore-widening treatment is effected by immersing the aluminum or aluminum alloy in sulfuric acid or phosphoric acid or electrolyzing the same in phosphoric acid or a mixed solution of phosphoric acid and sulfuric acid.

摘要翻译： 通过包括在铝或铝合金上形成阳极氧化膜，然后对铝或铝合金进行交流电解的方法，可以快速且有效地将耐用且清晰的蓝色的自由控制密度照射到铝的阳极氧化膜上 含有无机亚铁盐作为主要成分的浴，由此在氧化膜的孔中引起铁的沉积，随后将铝或铝合金作为阳极置于含有六氰基铁（II）酸盐作为主体的浴中 其组分并在其中进行DC电解。 在替代方法中，在所述阳极氧化步骤旁边加入扩孔处理。 通过将铝或铝合金浸渍在硫酸或磷酸中或在磷酸或磷酸和硫酸的混合溶液中电解，进行扩孔处理。

公开(公告)号：US5120405A

公开(公告)日：1992-06-09

申请号：US663009

申请日：1991-03-01

申请人： Seishiro Ito ,  Hideo Fukui ,  Norio Nakada ,  Hatsuo Hirono

发明人： Seishiro Ito ,  Hideo Fukui ,  Norio Nakada ,  Hatsuo Hirono

IPC分类号： C25D11/18 ,  C25D11/20 ,  C25D11/22 ,  C25D11/24

CPC分类号： C25D11/22 ,  C25D11/24

摘要： An aluminum or aluminum alloy material is subjected to anodic oxidation, then to a treatment of electrophoresis in a bath containing a hexacyanoferrate (II) or hexacyanoferrate (III), and subsequently to a treatment of immersion in a bath containing at least one metal salt selected from the group consisting of salts of Fe, Ni, Co, Cu, Zn, Cd, Ba, Tl, and Mg and at least one electrolyte selected from the group consisting of sodium sulfate, potassium sulfate, sodium chloride, and potassium chloride. Consequently, a coloring compound formed by the reaction of the aforementioned hexacyanoferrate (II) or hexacyanoferrate (III) with the aforementioned metal salt is deposited in the receding parts of micropores of an anodic oxide coating, with the result that the aluminum or aluminum alloy material is endowed with a durable color.

摘要翻译： 对铝或铝合金材料进行阳极氧化，然后在含有六氰基铁酸盐（II）或六氰基铁酸盐（III）的浴中进行电泳处理，随后在包含至少一种选择的金属盐的浴中浸渍处理 从由Fe，Ni，Co，Cu，Zn，Cd，Ba，Tl和Mg的盐组成的组中选出的至少一种电解质和选自硫酸钠，硫酸钾，氯化钠和氯化钾的至少一种电解质。 因此，通过上述六氰基铁酸盐（II）或六氰基铁酸盐（III）与上述金属盐的反应形成的着色化合物沉积在阳极氧化物涂层的微孔的后退部分中，结果是铝或铝合金材料 具有耐用的颜色。

公开(公告)号：US5334297A

公开(公告)日：1994-08-02

申请号：US119559

申请日：1993-09-13

申请人： Norio Nakada ,  Hideo Fukui ,  Hatsuo Hirono ,  Seishiro Ito

发明人： Norio Nakada ,  Hideo Fukui ,  Hatsuo Hirono ,  Seishiro Ito

IPC分类号： C25D11/04 ,  C25D11/20 ,  C25D11/22 ,  C25D13/04

CPC分类号： C25D11/22 ,  B60N2/4817 ,  B60N2/4847

摘要： A fast and brightly colored oxide film of aluminum which excels in durability and allows no separation of pigment is produced by using an aqueous dispersion of an organic pigment or carbon black finely divided to a size in the range between 3 and 150 nm, forming on a surface of an aluminum member an anodic oxide film containing pores larger in diameter than the ordinary pores, and causing the organic pigment or carbon black to migrate and deposit in the pores of the oxide film by means of electrophoresis. The formation of the anodic oxide film containing the pores larger in diameter than the ordinary pores is accomplished in the first method by subjecting the aluminum member to anodic oxidation at a high voltage in an aqueous solution of acid. In the second method, the anodic oxide film is subjected either to a treatment of immersion in an aqueous solution of at least one acid selected from among phosphoric acid, sulfuric acid, oxalic acid, and sulfamic acid or to a combination treatment of immersion and AC electrolysis repeated in a prescribed number of cycles in the solution, to enlarge the pores in the anodic oxide film.

摘要翻译： 通过使用细分为3〜150nm范围内的有机颜料或炭黑的水性分散体，制造耐久性优异且不会分离颜料的快速且明亮的铝氧化膜，形成在 铝构件的表面是含有直径大于普通孔的孔的阳极氧化膜，并且通过电泳使有机颜料或炭黑迁移并沉积在氧化膜的孔中。 在第一种方法中，通过使铝构件在酸性水溶液中以高电压进行阳极氧化，实现了直径大于普通孔的阳极氧化膜的形成。 在第二种方法中，将阳极氧化膜进行浸渍在选自磷酸，硫酸，草酸，氨基磺酸中的至少一种酸的水溶液中，或浸渍和AC的组合处理 在溶液中以规定数量的循环重复电解，以扩大阳极氧化膜中的孔。