Conversion treatment method and composition for aluminum and aluminum
alloys
    21.
    发明授权
    Conversion treatment method and composition for aluminum and aluminum alloys 失效
    铝和铝合金的转化处理方法和组成

    公开(公告)号:US5451271A

    公开(公告)日:1995-09-19

    申请号:US923889

    申请日:1992-08-20

    IPC分类号: C23C22/38

    CPC分类号: C23C22/38

    摘要: The paint adhesion and corrosion resistance of surfaces of aluminum and its alloys, particularly when using a paint based on poly{vinyl chloride}, is improved by using a conversion coating solution having a pH in the range from 1.0 to 3.0 and consisting essentially of water and:(A) an amount of phosphate ions that is stoichiometrically equivalent to at least 5.0 g/L of phosphoric acid;(B) at least 1.0 g/L of hexavalent chromium;(C) at least 0.1 g/L of fluoride ions; and(D) a complex fluoride ion component selected from the group consisting of:(i) at least 4.0 g/L of fluosilicate ions,(ii) at least 0.5 g/L of fluoborate ions,(iii) at least 2.0 g/L of fluozirconate ions, and(iv) at least 2.0 g/L of fluotitanate ions.

    摘要翻译: PCT No.PCT / US91 / 00965 Sec。 371日期:1993年8月20日 102(e)日期1993年8月20日PCT 1991年2月13日提交PCT公布。 公开号WO91 / 13186 1991年9月5日,铝及其合金表面,特别是当使用基于聚{氯乙烯}的涂料时,其表面的漆附着力和耐腐蚀性通过使用pH范围为1.0的转化涂层溶液得到改善 至3.0,并且基本上由水组成:(A)一定量的磷酸根离子,其化学计量等于至少5.0g / L的磷酸; (B)至少1.0g / L六价铬; (C)至少0.1g / L的氟离子; 和(D)选自以下的复合氟离子组分:(i)至少4.0g / L的氟硅酸盐离子,(ii)至少0.5g / L的氟硼酸根离子,(iii)至少2.0g / L的氟锆酸根离子,和(iv)至少2.0g / L的氟钛酸根离子。

    Non-corrosive coating for thin aluminum metallization
    24.
    发明授权
    Non-corrosive coating for thin aluminum metallization 失效
    非腐蚀性涂层用于薄铝金属化

    公开(公告)号:US3735484A

    公开(公告)日:1973-05-29

    申请号:US3735484D

    申请日:1970-12-17

    申请人: MOTOROLA INC

    发明人: GUREV H KIRK R

    摘要: To prevent corrosion of aluminum metallization of semiconductor devices, the device, including the aluminum metallization thereof is phosphated with a phosphate solution that includes no sodium. The phosphating may take place before the leads are provided or after. Portions of the phosphated surface may be covered by deposited glass. Then the phosphated semiconductor device or IC may be encapsulated in a plastic material in a known manner.

    摘要翻译: 为了防止半导体器件的铝金属化的腐蚀,包括其铝金属化的器件用不含钠的磷酸盐溶液磷酸化。 磷化可能在提供引线或之后发生。 磷酸盐化表面的一部分可以被沉积的玻璃覆盖。 然后磷化半导体器件或IC可以以已知的方式封装在塑料材料中。

    Chromate treatment bath composition and process for application to metals
    30.
    发明授权
    Chromate treatment bath composition and process for application to metals 失效
    铬酸盐处理浴组成和应用于金属的工艺

    公开(公告)号:US6149735A

    公开(公告)日:2000-11-21

    申请号:US77502

    申请日:1998-06-01

    摘要: A chromate treatment bath composition, afforded by the introduction, into an aqueous solution containing hexavalent Cr ions and trivalent Cr ions, of a nonionic-anionic composite surfactant that has an anionic moiety and a nonionic moiety composed of a polyethylene glycol group or a group consiting of an ethylene oxide addition polymer, provides metal surfaces onto which a layer of the composition containing 5 to 150 mg/m.sup.2 of total chromium is dried with a chromate film that has an excellent alkali resistance and water resistance, a high chromium fixing ratio, an excellent corrosion resistance, and an excellent paint film adherence.

    摘要翻译: PCT No.PCT / US96 / 18555 Sec。 371日期1998年6月1日 102(e)1998年6月1日PCT 1996年11月27日PCT PCT。 出版物WO97 / 21845 日期:1996年6月19日将通过引入得到的铬酸盐处理浴组合物添加到含有六价Cr离子和三价Cr离子的水溶液中,具有阴离子部分的非离子 - 阴离子复合表面活性剂和由聚乙二醇组成的非离子部分 组或由环氧乙烷加成聚合物组成的组,提供金属表面,其中含有5至150mg / m 2总铬的组合物层用具有优异的耐碱性和耐水性的铬酸盐膜干燥,高 铬固着率,耐腐蚀性优异,涂膜附着性优异。