Method of zinc phosphatization, activation and refining bath used in
said method and corresponding concentrate
    81.
    发明授权
    Method of zinc phosphatization, activation and refining bath used in said method and corresponding concentrate 失效
    所述方法中使用的锌磷酸化,活化和精炼浴的方法和相应的浓缩物

    公开(公告)号:US4678519A

    公开(公告)日:1987-07-07

    申请号:US793346

    申请日:1985-10-31

    IPC分类号: C23C22/78 C23C22/80 C23C22/82

    CPC分类号: C23C22/80

    摘要: Method of zinc phosphatization of substrates essentially based on iron, zinc or their alloys, comprising successively:(1) one or several alkaline degreasing steps,(2) one or several rinsing steps with running city water,(3) an activating and refining step,(4) the zinc phosphatization step proper,(5) one or several rinsing steps with water,(6) preferably, a passivating final rinsing step, particularly by means of salts of hexavalent chromium or mixtures of hexavalent chromium and trivalent chromiumcharacterized by the fact that, to carry out the activating and refining step, recourse is had to a bath comprising, besides the conventional constituents among which are particularly at least one Jernstedt salt in a proportion corresponding to about 1 to 100 ppm of titanium, a proportion of 10 to 700 ppm, preferably from 50 to 200 ppm, of at least one alkane-phosphonic acid of formula ##STR1## or at least one of the alkali or ammonium salts corresponding to the abovesaid alkane-phosphonic acids, the pH of the bath being from 7 to 9.5, preferably from 7.5 to 9.

    摘要翻译: 基本上基于铁,锌或其合金的基底的锌磷化的方法,包括:(1)一个或几个碱性脱脂步骤,(2)一个或多个漂洗步骤,其中有一个或几个漂洗步骤,(3)活化和精炼步骤 ,(4)适当的锌磷化步骤,(5)用水进行一次或几次漂洗步骤,(6)优选钝化最终漂洗步骤,特别是通过六价铬的盐或六价铬和三价铬的混合物,其特征在于 为了进行活化和精炼步骤,除了其中特别是至少一种与约1至100ppm钛的比例相对应的杰恩斯特德盐的常规成分之外,还要进行洗涤,其比例为 10至700ppm,优选50至200ppm的至少一种式(I)的烷烃 - 膦酸或至少一种对应于上述烷烃磷的碱金属盐或铵盐 皂酸,浴的pH为7至9.5,优选7.5至9。

    Copper stainproofing technique
    82.
    发明授权
    Copper stainproofing technique 失效
    铜防污技术

    公开(公告)号:US4647315A

    公开(公告)日:1987-03-03

    申请号:US750573

    申请日:1985-07-01

    摘要: The present invention relates to a technique for improving the tarnish and oxidation resistance of copper and copper base alloy materials. The technique of the present invention involves immersing the copper or copper base alloy material in a dilute aqueous chromic acid-phosphoric acid solution. After emerging from the chromic acid-phosphoric acid solution, the copper or copper base alloy material is preferably rinsed with a dilute aqueous caustic solution and dried. Copper and copper base alloy materials treated in accordance with the present invention have particular utility in printed circuit applications.

    摘要翻译: 本发明涉及一种提高铜和铜基合金材料的抗褪色和抗氧化性能的技术。 本发明的技术包括将铜或铜基合金材料浸入稀酸铬酸 - 磷酸水溶液中。 在从铬酸 - 磷酸溶液中出来之后,铜或铜基合金材料优选用稀的苛性碱水溶液冲洗并干燥。 根据本发明处理的铜和铜基合金材料在印刷电路应用中具有特殊的用途。

    Method for improving hydrolytic stability of the bond between steel
surfaces and organic adhesives
    84.
    发明授权
    Method for improving hydrolytic stability of the bond between steel surfaces and organic adhesives 失效
    改善钢表面和有机粘合剂之间粘结的水解稳定性的方法

    公开(公告)号:US3996074A

    公开(公告)日:1976-12-07

    申请号:US608428

    申请日:1975-08-28

    摘要: A method is disclosed for improving the hydrolytic stability of the adhesive bond between an RFL type organic adhesive and the steel reinforcing element in steel-rubber composite articles. This is accomplished by a pre-treatment of the steel surface before it is coated with the organic adhesive. The pre-treatment is conducted in a continuous operation which includes the sequential steps of: (1) cleaning the metal surface by a vapor degreasing method or by immersion in a detergent containing aqueous bath followed by a hot water rinse; (2) coating the surface with a crystalline or microcrystalline zinc phosphate; (3) rinsing the phosphated steel surface with water; (4) subjecting the phosphated surface to a chromate or chromic acid rinse; (5) rinsing again with deionized water; and finally (6) drying the steel reinforcing element.

    摘要翻译: 公开了一种提高钢 - 橡胶复合制品中的RFL型有机粘合剂和钢增强元件之间的粘结剂的水解稳定性的方法。 这是通过在钢表面涂覆有机粘合剂之前进行预处理来实现的。 预处理在连续操作中进行,其包括以下顺序步骤:(1)通过蒸汽脱脂方法或浸入含有水浴的洗涤剂中,随后进行热水冲洗来清洗金属表面; (2)用晶体或微晶磷酸锌涂覆表面; (3)用水冲洗磷化钢表面; (4)使磷酸盐化处理的表面经铬酸盐或铬酸冲洗; (5)用去离子水再次冲洗; 最后(6)干燥钢筋。

    RUST-PROOFING TREATMENT METHOD, AND RUST-PROOFING-TREATED ARTICLE

    公开(公告)号:US20220372626A1

    公开(公告)日:2022-11-24

    申请号:US17763072

    申请日:2020-09-23

    IPC分类号: C23C22/48 C23C22/07 C23C22/82

    摘要: The present invention relates to: a rust-proofing treatment method comprising the step of treating an object that comprises a metal or an alloy and is heated to a temperature higher than 180° C. or an object that has, formed on the surface thereof, a film or layer comprising a metal or an alloy and is heated to a temperature higher than 180° C. with an aqueous solution containing an inorganic acid or an inorganic salt, or comprising the step of treating an object comprising a metal or an alloy or an object having, formed on the surface thereof, a film or layer comprising a metal or an alloy with an aqueous solution containing at least one component selected from silicic acid, a silicic acid salt, phosphoric acid, a phosphoric acid salt, a monohydrogen phosphate salt, a dihydrogen phosphate salt and a zirconium salt; and an article characterized by being rust-proofing-treated by the rust-proofing treatment method.