Method of coating aluminum and aluminum alloy substrates and coated articles
    1.
    发明授权
    Method of coating aluminum and aluminum alloy substrates and coated articles 有权
    涂覆铝和铝合金基材和涂层制品的方法

    公开(公告)号:US06679952B2

    公开(公告)日:2004-01-20

    申请号:US09974458

    申请日:2001-10-10

    IPC分类号: C23C2248

    摘要: A method of coating aluminum and aluminum alloy substrates not only imparts a corrosion resistance comparable or even superior to that afforded by chromate treatment but also improves the adhesion to the coating film, while the luster of aluminum is fully retained, notwithstanding the use of a chromium-free treating solution, resulting in an improved coated article with the coated surface having a metallic luster. The method comprises treating an aluminum or aluminum alloy substrate with an acidic solution containing sulfuric acid and 0.2 to 0.4 g/L of a ferric ion and having a pH value of 0.6 to 2.0, subjecting the same to chemical conversion treatment with an acidic coat-forming agent containing 0.01 to 0.125 g/L of a zirconium or titanium ion, 0.01 to 1.0 g/L of a phosphate ion, and 0.01 to 0.5 g/L of a fluoride ion and having a pH value of 1.5 to 4.0, followed by coating.

    摘要翻译: 铝和铝合金基材的涂覆方法不仅具有与铬酸盐处理相当或甚至优异的耐腐蚀性,而且还提高了对涂膜的粘附性,而铝的光泽被完全保留,尽管使用了铬 从而形成具有金属光泽的涂覆表面的改进的涂层制品。 该方法包括用含硫酸的酸性溶液和0.2〜0.4g / L的铁离子处理铝或铝合金基板,并且其pH值为0.6〜2.0,对其进行化学转化处理, 含有0.01〜0.125g / L的锆或钛离子,0.01〜1.0g / L磷酸根离子,0.01〜0.5g / L氟离子,pH值为1.5〜4.0的成膜剂, 涂层。

    METHOD FOR COATING ALUMINUM WHEEL, AND ALUMINUM WHEEL
    3.
    发明申请
    METHOD FOR COATING ALUMINUM WHEEL, AND ALUMINUM WHEEL 有权
    铝合金轮毂和铝合金轮毂的方法

    公开(公告)号:US20130313888A1

    公开(公告)日:2013-11-28

    申请号:US13979205

    申请日:2012-01-01

    IPC分类号: B60B19/00

    摘要: The present invention provides a method for coating an aluminum wheel using a coating composition capable of forming a coating film having a superior cosmetic property as well as an anticorrosive property much enough for preventing corrosion even in the use in an area where the coating film is susceptible to salt damage, and an aluminum wheel obtained by the method. A method for coating an aluminum wheel including applying an anticorrosive coating composition onto the aluminum wheel, and thereafter applying a clear coating composition to form a transparent multilayer coating film, wherein the anticorrosive coating composition contains an acrylic resin (1) having a weight average molecular weight of 50,000 to 140,000, a glass transition point of 20 to 50° C., a hydroxyl value of 10 to 50 mgKOH/g, and an acid value of 10 to 40 mgKOH/g, and an epoxy resin (2) having an epoxy equivalent of 210 to 1,000 g/eq and contains the epoxy resin (2) in an amount of 5 to 20 parts by weight on the solid matter basis to 100 parts by weight of the solid matter of the acrylic resin (1).

    摘要翻译: 本发明提供一种涂覆铝轮的方法,该涂料组合物能够形成具有优异的化妆品性质的涂膜以及即使在涂膜易感的区域中也能防止腐蚀的耐腐蚀性 受到盐损害,并通过该方法获得的铝合金轮毂。 一种涂覆铝轮的方法,包括在铝轮上涂覆防腐涂料组合物,然后施加透明涂料组合物以形成透明多层涂膜,其中防腐涂料组合物含有具有重均分子量的丙烯酸树脂(1) 重量为50,000〜140,000,玻璃化转变点为20〜50℃,羟值为10〜50mgKOH / g,酸值为10〜40mgKOH / g,环氧树脂(2)具有 环氧当量为210〜1000g / eq,相对于丙烯酸树脂(1)的固体成分100重量份,以固体成分计含有5〜20重量份的环氧树脂(2)。