Method for selectively phosphating a composite metal construction
    1.
    发明授权
    Method for selectively phosphating a composite metal construction 有权
    选择性磷化复合金属结构的方法

    公开(公告)号:US09550208B2

    公开(公告)日:2017-01-24

    申请号:US13718342

    申请日:2012-12-18

    摘要: A multistage method for treatment of composite metal structures containing metallic surfaces of aluminum, zinc and optionally iron, is provide wherein in a first step, selective zinc phosphating of zinc and ferrous surfaces proceeds using a phosphating solution containing a quantity of water-soluble inorganic silicon compounds sufficient to suppress white spot formation on zinc, but less than the quantity where zinc phosphating loses selectivity. In a following second step, aluminum surfaces are passivated with an acidic treatment solution. Also provided is a zinc phosphating solution suitable for said method containing at least 0.025 g/l, but less than 1 g/l of silicon as water-soluble inorganic compounds calculated as SiF6, wherein the product (Si/mM)·(F/mM) of the concentration of silicon [Si in mM] in the form of water-soluble inorganic compounds and the concentration of free fluoride [F in mM] divided by the free acid point number is no greater than 5.

    摘要翻译: 提供一种用于处理含有铝,锌和任选的铁的金属表面的复合金属结构的多级方法,其中在第一步骤中,使用含有一定量的水溶性无机硅的磷酸盐溶液进行锌和铁表面的选择性锌磷化 化合物足以抑制锌上的白点形成,但小于锌磷化失去选择性的量。 在接下来的第二步中,铝表面用酸性处理溶液钝化。 还提供了适用于所述方法的磷酸锌溶液,其含有至少0.025g / l但小于1g / l的作为SiF 6计算的水溶性无机化合物的硅,其中产物(Si / mM)·(F / mM)以水溶性无机化合物的形式存在的硅浓度[以mM为单位],游离氟化物[F(mM)]除以游离酸点数的浓度不大于5。

    Process for coating metallic surfaces
    2.
    发明授权
    Process for coating metallic surfaces 有权
    金属表面涂层工艺

    公开(公告)号:US08349092B2

    公开(公告)日:2013-01-08

    申请号:US13080974

    申请日:2011-04-06

    IPC分类号: C23C22/12 C23C22/07

    CPC分类号: C23C22/365 C23C22/362

    摘要: A method for treating or pre-treating parts, profiled-pieces, strips, sheet metals or wires having metallic surfaces, in which at least 5% of these surfaces consists of aluminum or of at least one aluminum alloy with an acid aqueous solution which contains fluoride, zinc and phosphate and which has the following dissolved contents in the phosphatizing solution: sodium virtually none, from 0.04 to less than 2 g/L; potassium virtually none or in a concentration ranging from 0.025 to 2.5 g/L; sodium and potassium in a concentration ranging from 0.025 to 2.5 g/L as sodium, whereby the potassium content is converted to sodium on a molar basis; zinc 0.2 to 4 g/L zinc, 5 to 65 g/L calculated as PO4; 0.03 to 0.5 g/L phosphate free fluoride wherein the total fluoride is present in a concentration ranging from 0.1 to 5 g/L. A zinc-containing phosphate layer is thereby deposited onto the metallic surfaces with a layer weight ranging from 0.5 to 10 g/m2.

    摘要翻译: 用于处理或预处理部件,异形件,条带,金属片或具有金属表面的金属线的方法,其中至少5%的这些表面由铝或至少一种铝合金与酸性水溶液组成,所述酸性水溶液含有 氟化物,锌和磷酸盐,并且在磷酸盐化溶液中具有以下溶解含量:钠实际上不为0.04至小于2g / L; 实际上无钾或浓度范围为0.025至2.5g / L的钾; 钠和钾的浓度范围为0.025至2.5g / L,钠的含量以摩尔计转换为钠; 锌0.2〜4g / L锌,5〜65g / L PO4计算; 0.03至0.5g / L磷酸盐氟化物,其中总氟化物以0.1至5g / L的浓度存在。 因此,含锌磷酸盐层以0.5〜10g / m 2的重量沉积在金属表面上。

    Composition and process for treating metals
    3.
    发明授权
    Composition and process for treating metals 失效
    处理金属的组成和工艺

    公开(公告)号:US07510613B2

    公开(公告)日:2009-03-31

    申请号:US10380898

    申请日:2001-09-24

    申请人: Kevin K. Meagher

    发明人: Kevin K. Meagher

    摘要: Metal surfaces are treated with acidic aqueous compositions to form conversion coatings. The acidic aqueous compositions contain fluorometallate anions, divalent and/or trivalent cations of certain elements such as zinc, phosphorus-containing inorganic oxyanions, phosphonate anions containing phosphorus atoms directly bonded to carbon atoms, and water-soluble and/or water-dispersible organic polymers and/or polymer-forming resins.

    摘要翻译: 用酸性含水组合物处理金属表面以形成转化涂层。 酸性含水组合物含有金属金属阴离子,某些元素的二价和/或三价阳离子如锌,含磷无机含氧阴离子,含有直接键合在碳原子上的磷原子的膦酸盐阴离子,以及水溶性和/或水分散性有机聚合物 和/或聚合物形成树脂。

    No rinse zinc phosphate treatment for prepaint application
    5.
    发明授权
    No rinse zinc phosphate treatment for prepaint application 失效
    无需冲洗磷酸锌处理,适用于预涂料

    公开(公告)号:US6117251A

    公开(公告)日:2000-09-12

    申请号:US275586

    申请日:1999-03-24

    申请人: Jose B. Rivera

    发明人: Jose B. Rivera

    IPC分类号: C23C22/12 C23C22/36 C23C22/00

    CPC分类号: C23C22/362 C23C22/12

    摘要: An aqueous solution and method for applying the solution to a metal surface form a zinc phosphate coating on the metal surface. The zinc phosphate coating minimizes corrosion and improves adhesion of subsequently coated materials such as sealants and paints. The solution of the composition and method of application consume free acidity otherwise left on the metal surface, and obviate the need for subsequent rinsing or extensive drying or stoving operations. The composition includes an aqueous solution including water, zinc dihydrogen phosphate, phosphoric acid, a polyhydric polymer, a metal salt, and optionally, a fluoride.

    摘要翻译: 将溶液施加到金属表面的水溶液和方法在金属表面上形成磷酸锌涂层。 磷酸锌涂层使腐蚀最小化,并改善随后涂覆的材料(如密封剂和涂料)的附着力。 组合物和应用方法的溶液消耗免费的酸度,否则留在金属表面上,并且不需要随后的漂洗或大量的干燥或烘烤操作。 该组合物包括水,包括水,磷酸二氢锌,磷酸,多羟基聚合物,金属盐和任选的氟化物的水溶液。

    No-rinse phosphating process
    6.
    发明授权
    No-rinse phosphating process 失效
    无漂洗磷化工艺

    公开(公告)号:US5976272A

    公开(公告)日:1999-11-02

    申请号:US809606

    申请日:1997-03-24

    摘要: A process for phosphating metal surfaces by treatment with an acidic zinc- and phosphathe-containing solution which does not require rinsing. The metal substrate is contacted with a phosphating solution containing 2 to 25 g/l of zinc ions, 2 to 25 g/l of manganese ions and 50 to 300 g/l of phosphate ions. The solution has a pH value of 1 to 3.6, a free acid content of 0 to 100 points, a total acid content of 40 to 400 points and a ratio of free acid to total acid of 1:4 to 1:20.

    摘要翻译: PCT No.PCT / EP95 / 03619 371日期1997年3月24日 102(e)1997年3月24日PCT PCT 1995年9月14日PCT公布。 公开号WO96 / 09422 日期1996年3月28日一种通过用不需要漂洗的酸性含锌和磷酸钙溶液处理来磷化金属表面的方法。 使金属基板与含有2〜25g / l的锌离子,2〜25g / l的锰离子和50〜300g / l的磷酸根离子的磷化液接触。 该溶液的pH值为1至3.6,游离酸含量为0至100分,总酸含量为40至400分,游离酸与总酸的比例为1:4至1:20。

    Process for forming a phosphate conversion coating
    7.
    发明授权
    Process for forming a phosphate conversion coating 失效
    形成磷酸盐转化膜的方法

    公开(公告)号:US5904785A

    公开(公告)日:1999-05-18

    申请号:US765934

    申请日:1997-02-11

    IPC分类号: C23C22/36 C23C22/73 C23C22/86

    摘要: To prevent the deterioration in water-resistant secondary adherence that occurs during prolonged use of a fluoride-containing phosphate conversion coating liquid composition to form a conversion coating on metal surfaces that are at least partly aluminiferous, the aluminum compound-containing sludge produced in the phosphate conversion coating liquid composition as it is used is coagulated and sedimented by adding at least one cationic polymeric coagulant to the sludge-containing phosphate conversion coating liquid composition.

    摘要翻译: PCT No.PCT / US95 / 08228 Sec。 371日期1997年2月11日 102(e)日期1997年2月11日PCT提交1995年7月11日PCT公布。 公开号WO96 / 01914 日期1996年1月25日为了防止在长期使用含氟化物的磷酸盐转化涂布液组合物中在至少部分含有铝的金属表面上形成转化膜时发生的耐水二次粘附的劣化,含铝化合物 在使用的磷酸盐转化涂覆液体组合物中产生的污泥通过向含污泥的磷酸盐转化涂覆液体组合物中加入至少一种阳离子聚合物凝结剂而凝结沉淀。

    Method for phosphating metal surface with zinc phosphate
    8.
    发明授权
    Method for phosphating metal surface with zinc phosphate 失效
    用磷酸锌磷化金属表面的方法

    公开(公告)号:US5399208A

    公开(公告)日:1995-03-21

    申请号:US11923

    申请日:1993-02-01

    IPC分类号: C23C22/36 C23C22/77 C23C22/12

    CPC分类号: C23C22/77 C23C22/362

    摘要: To treat an iron-based, zinc-based, and an aluminumbased surfaces etc. with zinc phosphate using the same solution, a treating solution is adjusted in concentrations so as to contain a simple fluoride in a range of 200.about.500 mg/l upon converting into a HF concentration and to contain a fluoride complex in a range shown in the following formula; ##EQU1## and also, it is adjusted in an active fluorine concentration so as to be 15.about.130 .mu.A at a value indicated by a silicon electrode meter. Instead of such adjusting, aluminum ions in the treating solution is precipitated in an outside of a treating bath to separate them from the treating solution and then, this treating solution may be returned in to the treating bath.

    摘要翻译: 为了使用相同的溶液用磷酸锌处理铁基,锌基和铝基表面等,调节处理溶液的浓度,以便含有200-600mg / l范围内的简单氟化物 转化成HF浓度并含有下式所示的氟化物络合物; < IMAGE>并且以由硅电极计所指示的值调节为活性氟浓度以使得差异为130μA。 代替这种调整,处理溶液中的铝离子在处理浴的外部沉淀,以将它们与处理溶液分离,然后将该处理溶液返回到处理浴中。

    Method for treating metal surface with zinc phosphate
    9.
    发明授权
    Method for treating metal surface with zinc phosphate 失效
    用磷酸锌处理金属表面的方法

    公开(公告)号:US5244512A

    公开(公告)日:1993-09-14

    申请号:US883438

    申请日:1992-05-15

    IPC分类号: C23C22/34 C23C22/36

    CPC分类号: C23C22/362 C23C22/365

    摘要: A method for treating a metal surface with zinc phosphate of this invention can treat an iron-based surface, a zinc-based surface, an aluminum-based surface as well as a metal surface having two kinds or more of these surfaces with the same zinc phosphate treating solution, and even if treating times increases, the method makes it possible to form a coating film having superior adhesion and high corrosion resistance under a stable condition, and also, it prevents a precipitate formed by a metal ion eluted from a metal surface to be treated, especially, by an aluminum ion. A complex fluoride compound contained in said zinc phosphate treating solution of coming in contact with a metal surface is added so that a concentration (unit: g/l) converted into at least one of a hexafluorosilicic acid group (SiF.sub.6.sup.2-) and a tetrafluoroboric acid group (BF.sub.4.sup.-), with an aluminum ion concentration (unit: g/l) contained in said treating solution, is satisfactory for the following equation (I). ##EQU1##