Process for phosphating metal surfaces
    2.
    发明授权
    Process for phosphating metal surfaces 失效
    磷化金属表面的工艺

    公开(公告)号:US4673444A

    公开(公告)日:1987-06-16

    申请号:US783059

    申请日:1985-10-01

    IPC分类号: C23C22/18 C23C22/73 C23C22/14

    摘要: A method of phosphating the surfaces of iron-based metals, zinc-based metals, or combinations of such surfaces by contacting the metal surfaces with an acidic aqueous phosphating solution containing from about 0.1 to about 2.0 g/l of zinc ion, from about 5 to about 30 g/l of phosphate ion, from about 0.2 to about 3 g/l of manganese ion, and a conversion coating accelerator. The phosphated metal surfaces are then suitable for electrocoating.

    摘要翻译: 通过使金属表面与含有约0.1至约2.0g / l的锌离子的酸性含水磷酸盐溶液接触,从约5分钟,使铁基金属,锌基金属或这些表面的组合磷酸化, 至约30g / l的磷酸根离子,约0.2至约3g / l的锰离子和转化涂层促进剂。 磷化金属表面适用于电泳。

    Method for zinc-phosphating metal surface
    5.
    发明授权
    Method for zinc-phosphating metal surface 失效
    锌磷化金属表面方法

    公开(公告)号:US5328526A

    公开(公告)日:1994-07-12

    申请号:US40964

    申请日:1993-03-31

    IPC分类号: C23C22/12 C23C22/18 C23C22/36

    摘要: A zinc phosphate coating film suitable for cationic electrodeposition coating and superior in both of coating film adhesion and corrosion resistance (especially, warm brine resistance and scab resistance) is formed by a conversion treatment of a metal surface using an acidic zinc-phosphating solution which does not contain a nickel ion as an essential component. The conversion treatment is carried out by bringing a metal surface into contact with a zinc-phosphating solution containing a zinc ion of 0.1 to 2.0 g/l, a phosphate ion of 5 to 40 g/l, a lanthanum compound of 0.001 to 3 g/l in terms of a lanthanum metal, and a phosphating accelerator, thereby the zinc phosphate coating film is formed on the metal surface.

    摘要翻译: 通过使用酸性磷酸锌溶液对金属表面进行转化处理,形成适用于阳离子电沉积涂层的磷酸锌涂膜,并且在涂膜粘附性和耐腐蚀性(特别是耐温盐渍性和耐刮擦性)方面均优异。 不含镍离子作为必需成分。 转化处理通过使金属表面与含有0.1〜2.0g / l的锌离子,5〜40g / l的磷酸根离子,0.001〜3g的镧化合物的锌 - 磷酸化溶液接触来进行 镧金属和磷化促进剂,由此在金属表面上形成磷酸锌被膜。

    Aqueous cleaning solution and method for cleaning aluminum-based metals
    7.
    发明授权
    Aqueous cleaning solution and method for cleaning aluminum-based metals 有权
    水性清洗液及铝基金属清洗方法

    公开(公告)号:US6083896A

    公开(公告)日:2000-07-04

    申请号:US362732

    申请日:1999-07-29

    CPC分类号: C23G1/125

    摘要: The present invention provides an aqueous cleaning solution for aluminum-based metals which comprises an inorganic acid in an amount to provide a pH value of 2 or less, an oxidized form metal ion and a surfactant represented by the following formula (I)R--O--(EO).sub.n H (I)wherein R represents an alkyl group having on average 10 to 18 carbon atoms per molecule, n represents an integer of 8 or greater, and EO represents an ethyleneoxy group which may contain a small proportion of a propyleneoxy group. The degradation of cleaning properties due to the accumulation of lubricating oil or decomposition of surfactants is lessened even when the cleaning operation is carried out for a long period of time.

    摘要翻译: 本发明提供一种铝基金属的水性清洗液,其含有pH值为2以下的无机酸,氧化型金属离子和下式(I)表示的表面活性剂RO-( EO)nH(I)其中R表示每分子平均具有10至18个碳原子的烷基,n表示8或更大的整数,EO表示可含有少量丙烯氧基的乙烯氧基。 即使长时间进行清洁操作,由于润滑油的积聚或表面活性剂的分解而导致的清洗性能的降低也降低。