Aluminum alloy for magnetic disc substrate execellent in platability
    1.
    发明授权
    Aluminum alloy for magnetic disc substrate execellent in platability 失效
    用于磁盘基板的铝合金具有优异的电镀性能

    公开(公告)号:US5017337A

    公开(公告)日:1991-05-21

    申请号:US412431

    申请日:1989-09-26

    IPC分类号: C22C21/06 G11B5/73

    摘要: An aluminum alloy for magnetic disc substrate excellent in platability is disclosed, which is characterized in that not less than 0.010 wt. % and under 0.03 wt. % of Cu, not less than 2 wt. % and not more than 6 wt. % of Mg and not less than 0.05 wt. % and not more than 2.0 wt. % of Zn are contained, further one or more of over 0.01 wt. % and under 0.05 wt. % of Mn and over 0.01 wt. % and under 0.05 wt. % of Cr are contained, and, as impurity elements, Si, Fe, Ti and other individual unavoidable element are regulated to be not more than 0.1 wt. %, not more than 0.1 wt. %, not more than 0.02 wt. % and not more than 0.02 wt. %, respectively. Zr may be contained additionally in amounts of not less than 0.005 wt. % and under 0.05 wt. %.

    Aluminum alloy sheet with improved formability and method of production
    4.
    发明授权
    Aluminum alloy sheet with improved formability and method of production 失效
    具有改善成型性和生产方法的铝合金板

    公开(公告)号:US5322741A

    公开(公告)日:1994-06-21

    申请号:US30412

    申请日:1993-04-16

    摘要: The invention provides an aluminum alloy sheet having improved formability, an elongation of at least 30%, a sliding frictional resistance of up to 0.13 and minimized surface pressure dependency of sliding frictional resistance, comprising an aluminum alloy substrate containing at least 4 wt % of Mg and a Fe rich plating layer on a surface thereof in a coating weight of 1 to 50 g/m.sup.2. Also provided is a bake hardenable, surface treated aluminum alloy sheet having improved formability, an elongation of at least 25%, a sliding frictional resistance of up to 0.13 and minimized surface pressure dependency of sliding frictional resistance, comprising a bake hardenable aluminum alloy substrate containing Mg and Si in an amount of at least 0.4 wt % calculated as Mg.sub.2 Si and a Fe rich plating layer on a surface thereof in coating weight of 1 to 50 g/m.sup.2. By forming a zincate layer as an undercoat below the Fe rich plating layer, the plating adhesion is further improved. The preferred Fe rich plating layer is a Fe-Zn alloy plating layer containing 20 to 80 wt % of Zn for corrosion resistance improvement. A Fe-Zn alloy plating layer containing 30 to 40 wt % of Zn meets both formability and corrosion resistance.

    摘要翻译: PCT No.PCT / JP92 / 00931 Sec。 371日期:1993年04月16日 102(e)日期1993年4月16日PCT提交1992年7月22日PCT公布。 第WO93 / 02225号公报 日本公开1993年2月4日。本发明提供一种铝合金板,其具有改进的成形性,伸长率至少为30%,滑动摩擦阻力高达0.13,并且滑动摩擦阻力的表面压力依赖性最小化,包括含有 表面上含有至少4重量%的Mg和富Fe镀层,涂层重量为1〜50g / m 2。 还提供了具有改进的成型性,至少25%的伸长率,至多0.13的滑动摩擦阻力和最小化的滑动摩擦阻力的表面压力依赖性的烘烤可硬化的表面处理的铝合金板,其包括含有 Mg和Si的量为至少0.4重量%,其表面上的Mg 2 Si和Fe富镀层的涂层重量为1至50g / m 2。 通过在富Fe镀层下形成作为底涂层的锌酸盐层,进一步提高镀层附着力。 优选的富Fe镀层是含有20〜80重量%的Zn以提高耐腐蚀性的Fe-Zn合金镀层。 含有30〜40重量%Zn的Fe-Zn合金镀层满足成型性和耐腐蚀性。

    Surface-treated aluminum material having improved spot resistance
weldability, workability, and corrosion resistance
    6.
    发明授权
    Surface-treated aluminum material having improved spot resistance weldability, workability, and corrosion resistance 失效
    表面处理的铝材料具有改进的耐焊接性,可加工性和耐腐蚀性

    公开(公告)号:US5395687A

    公开(公告)日:1995-03-07

    申请号:US20052

    申请日:1993-02-19

    IPC分类号: C23C28/00 B32B15/08

    摘要: A surface-treated aluminum material comprising an aluminum or aluminum alloy substrate, a chromate film deposited on the substrate, and an organic resin mixture film deposited on the chromate film is provided. The chromate film is deposited to a coating weight of from 5 to 100 mg/m.sup.2 calculated in terms of elementary chromium on the aluminum substrate. The organic resin mixture film is deposited to a dry film thickness of from 0.05 to 3.0 .mu.m, and comprises (a) 100 parts by weight of an organic resin, (b) 0.5 to 40 parts by weight of a powder lubricant having an average particle size of from 0.05 to 20 .mu.m, said average particle size being in the range of from 1.0 to 10 folds of the dry film thickness, and (c) 1.0 to 40 parts by weight of electroconductive finely divided particles having an average particle size in the range of from 0.05 to 5 .mu.m, said average particle size being in the range of from 1.0 to 2 folds of the dry film thickness. The organic surface-treated aluminum material has remarkable weldability, workability as well as corrosion resistance.

    摘要翻译: 提供了包含铝或铝合金基板,沉积在基板上的铬酸盐膜和沉积在铬酸盐膜上的有机树脂混合物膜的表面处理铝材料。 以铝基板上的基本铬计算,铬酸盐膜以5至100mg / m 2的涂层重量沉积。 将有机树脂混合物膜沉积为0.05-3.0μm的干膜厚度,并且包含(a)100重量份的有机树脂,(b)0.5-40重量份的具有平均值的粉末润滑剂 粒径为0.05〜20μm,所述平均粒径为干膜厚度的1.0〜10倍,(c)1.0〜40重量份的导电细碎粒子的平均粒径 在0.05〜5μm的范围内,所述平均粒径在干膜厚度的1.0〜2倍的范围内。 有机表面处理的铝材料具有显着的焊接性,可加工性以及耐腐蚀性。

    Anodized memory disk substrate and method of manufacturing the same
    7.
    发明授权
    Anodized memory disk substrate and method of manufacturing the same 失效
    阳极氧化的存储盘基板及其制造方法

    公开(公告)号:US4678547A

    公开(公告)日:1987-07-07

    申请号:US903480

    申请日:1986-09-04

    摘要: An anodized memory disk substrate is disclosed, which is characterized in having an anodic film having excellent heat resistance and hardness and having a thickness of not less than 3 .mu.m on the surface of aluminum or an aluminum alloy substrate imparted thereto by means of chromic acid-sulfuric acid mixture. The method described therefor is that, after the formation of anodic film having a film thickness of not less than 4 .mu.m on the surface of substrate, polishing is carried out so as to leave behind the anodic film having a film thickness of at least 3 .mu.m. Heat treatment may be made before or after the polishing.

    摘要翻译: 公开了一种阳极氧化存储盘基板,其特征在于具有优异的耐热性和硬度的阳极膜,并且通过铬酸赋予铝或铝合金基板的表面上的厚度不小于3μm - 硫酸混合物。 其描述的方法是,在基板表面上形成膜厚度不小于4μm的阳极膜之后,进行抛光,以便留下膜厚至少为3的阳极膜 亩 可以在抛光之前或之后进行热处理。