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    Aluminium object with anodic oxide surface
    1.
    发明授权
    Aluminium object with anodic oxide surface 失效
    具有阳极氧化物表面的铝对象

    公开(公告)号：US3862892A

    公开(公告)日：1975-01-28

    申请号：US32576573

    申请日：1973-01-22

    申请人： MAX PLANCK GESELLSCHAFT

    发明人： LAUTENSCHLAGER WERNER ,  PAHLKE SIEGFRIED ,  TOLG GUNTHER

    IPC分类号： C25D11/04 ,  C23B9/02

    CPC分类号： C25D11/04 ,  C25D11/026

    摘要： There is provided an aluminium shaped object with an oxidised surface, characterised by an elastic aluminium oxide surface layer with a thickness of between 1 and 20 Mu m, preferably of 2 to 10 Mu m, with a spongy structure of granular structural elements having an average diameter of between 1 and 10 Mu m, preferably of 3 to 8 Mu m. There is also provided a process for the production of an aluminium shaped object with an oxidised surface by anodic oxidation in an electrolyte, wherein the surface of an aluminium shaped object is contacted in a weakly acidic to weakly alkaline bath by sparkovers at a high voltage and very high current density.

    摘要翻译： 提供具有氧化表面的铝形物体，其特征在于具有1至20μm，优选2至10μm的厚度的弹性氧化铝表面层，其中具有平均粒度的颗粒状结构元件的海绵结构 直径在1至10μm之间，优选3至8μm。

    Process for anodizing aluminum and its alloys
    2.
    发明授权
    Process for anodizing aluminum and its alloys 失效
    铝及铝合金的加工方法

    公开(公告)号：US3857766A

    公开(公告)日：1974-12-31

    申请号：US27757872

    申请日：1972-08-03

    申请人： PERMALOY CORP

    发明人： WOODS J

    IPC分类号： C25D11/04 ,  C23B9/02

    CPC分类号： C25D11/04 ,  C25D11/024 ,  C25D11/08 ,  Y10S204/08 ,  Y10S204/09

    摘要： A method of anodizing aluminum and its alloys utilizing a suitable anodizing electrolyte and a pulsed direct current. The direct current used provides a substantially constant anodizing current interspersed with at least six pulses per second of higher, smoothly peaked, direct current. It has been found that the greater the number of pulses per second, the more superior the anodic coating obtained. The electrolyte used can be sulfuric acid (125 to 300 grams of sulfuric acid per liter of water) preferably containing a 0.1 to 0.2 grams per liter of sodium lignosulfonate or other such sulfonated organic compound as a stabilizer. A mixture of sulfosalicylic acid and sulfuric acid or a mixture of sulfuric and oxalic acid can be used.

    摘要翻译： 使用合适的阳极氧化电解质和脉冲直流阳极氧化铝及其合金的方法。 所使用的直流电提供了基本上恒定的阳极氧化电流，每秒至少有六个脉冲，其具有较高的平滑峰值的直流电流。 已经发现，每秒脉冲数越多，得到的阳极涂层就越好。 所使用的电解质可以是硫酸（每升水125至300克硫酸），优选含有0.1至0.2克/升木质素磺酸钠或其它这样的磺化有机化合物作为稳定剂。 可以使用磺基水杨酸和硫酸的混合物或硫酸和草酸的混合物。

    Method for forming a colored oxide coating on the surfaces of aluminum or aluminum alloy materials
    3.
    发明授权
    Method for forming a colored oxide coating on the surfaces of aluminum or aluminum alloy materials 失效
    在铝或铝合金材料表面上形成有色氧化物涂层的方法

    公开(公告)号：US3843496A

    公开(公告)日：1974-10-22

    申请号：US27965872

    申请日：1972-08-09

    申请人： RIKEN LIGHT METAL IND CO

    发明人： IKEGAYA M ,  SHIGETA F

    IPC分类号： C25D11/14 ,  C23B9/02

    CPC分类号： C25D11/14

    摘要： 1. A METHOD OF PRODUCING A COLORED OXIDE COATING HAVING REDDISH COLOR TONE ON ALUMINUM OR ALUMINUM ALLOY, CONSISTING ESSENTIALLY OF ELECTROLYTICALLY ANODIZING, WITH AN ALTERNATING CURRENT, A SUITABLE ALUMINUM MATERIAL SELECTED FROM THE GROUP CONSISTING OF ALUMINUM AND ALLOYS THEREOF IN AN AQUEOUS ACID SOLUTION CONTAINING SELENIUM SELECTED FROM THE GROUP CONSISTING OF AN AQUEOUS SOLUTION OF 5.0-20.0% BY WEIGHT OF SULFURIC ACID AND 0.011.0% BY WEIGHT OF A SELENIUM COMPOUND AND AN AQUEOUS SOLUTION OF 5.0-15.0% BY WEIGHT OF PHOSPHORIC ACID AND 0.01-1.0% BY WEIGHT OF A SELENIUM COMPOUND.

    Method of forming an integral colored anodic oxide on aluminum pressure die castings
    4.
    发明授权
    Method of forming an integral colored anodic oxide on aluminum pressure die castings 失效
    在铝压铸件上形成一体化的阳极氧化物的方法

    公开(公告)号：US3833484A

    公开(公告)日：1974-09-03

    申请号：US22759372

    申请日：1972-02-18

    申请人： SUMITOMO CHEMICAL CO

    发明人： YANAGIDA K ,  SATAKE I

    IPC分类号： C22C21/00 ,  C25D11/14 ,  C23B9/02

    CPC分类号： C25D11/14 ,  C22C21/00

    摘要： An integral colored anodic oxide film free from irregular patterns of metal flow, seams and cold shuts can be formed on die castings by subjecting the surface of pressure die castings of an aluminum alloy comprising 0.1 - 1.3 percent by weight of chromium, 0.2 - 3.4 percent by weight of manganese, said chromium and manganese being present in the amounts which are within the area of quadrilateral ABCD shown in the FIGURE, up to 0.3 percent by weight of impurities and the balance of aluminum, to roughening and brightening treatments, and thereafter subjecting thus treated products to anodizing treatment. Mechanical strength and castability of the alloy is further improved by addition of cobalt or zinc.

    摘要翻译： 可以在压铸件上形成不含不规则图案的金属流动，接缝和冷闭合的整体彩色阳极氧化膜，该压铸模具包含0.1-1.3重量％铬，0.2-3.4％ 的锰，所述铬和锰的存在量在图中所示的四边形ABCD的范围内，高达0.3重量％的杂质和余量的铝，进行粗糙化和增亮处理，然后 从而处理产品进行阳极氧化处理。 通过添加钴或锌进一步提高合金的机械强度和浇铸性。

    Inorganic coatings for aluminous metals
    6.
    发明授权
    Inorganic coatings for aluminous metals 失效
    无机金属用铝合金

    公开(公告)号：US3812021A

    公开(公告)日：1974-05-21

    申请号：US31420972

    申请日：1972-12-11

    申请人： REYNOLDS METALS CO

    发明人： CRAIG H ,  COATES H

    IPC分类号： C25D9/06 ,  C23B9/02

    CPC分类号： C25D9/06

    摘要： SILICEOUS COATINGS HAVING GOOD ADHESION, HARDNESS AND SMOOTHNESS AND CORROSION RESISTANCE ARE PRODUCED ON THE SURFACE OF AN ALUMINOUS METAL BY IMMERIISING THE METAL IN AN AQUEOUS BATH OF AN ALKALI SILICATE, CONTAINING AN ALKALI CHROMATE, MOLYBDATE, OR TUNGSTATE, AND FURTHER CONTAINING AN ALKALI CARBONATE, PHOSPHATE, OR BORATE, AND PASSING CURRENT THROUGH SAID BATH AT A VOLTAGE PREDOMINANTLY POSITIVE AND SUFFICIENT TO CAUSE A UNIFORM SCINTILLATION OR FLASHING AT THE ANODE SURFACE. THE COATING THUS OBTAINED IS DECORATIVE AND SCRATCH-RESISTANT AND ALSO PROVIDES A GOOD BASE FOR A COVER COATING SUCH AS A PLASTIC

    Anodizing aluminum foams
    9.
    发明授权
    Anodizing aluminum foams 失效
    ANODIZING铝合金

    公开(公告)号：US3787298A

    公开(公告)日：1974-01-22

    申请号：US3787298D

    申请日：1971-08-09

    申请人： ETHYL CORP

    发明人： NIEBYLSKI L

    IPC分类号： C22C1/08 ,  C25D11/06 ,  C23B9/02

    CPC分类号： C22C1/08 ,  C25D11/06

    摘要： Strength of metal foams is enhanced by anodizing. The strength increase may not be immediately apparent, but may require aging. Anodization is preferably carried out by applying voltage across a cathode (in contact with the electrolytic bath) and the foam anode and then immersing the anode in the bath. Improved results are also obtained if surfaces not to be anodized are not contacted with the electrolytic bath. The electrolyte can optionally contain a fluorine acid such as HF and HBF4. These tend to make the foam less porous. Preferred foams are made of aluminum base metals.

    摘要翻译： 金属泡沫的强度通过阳极氧化增强。 强度增加可能不会立即显现，但可能需要老化。 优选通过在阴极（与电解槽接触）和泡沫阳极之间施加电压，然后将阳极浸入浴中来进行阳极氧化。 如果没有阳极氧化的表面不与电解槽接触，也可获得改进的结果。 电解质可任选地含有氟酸如HF和HBF 4。 这些倾向于使泡沫较少孔。 优选的泡沫由铝基金属制成。