CN1381614A - 用于铝合金的复合无铬转化镀层 - Google Patents

用于铝合金的复合无铬转化镀层 Download PDF

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CN1381614A
CN1381614A CN01145601A CN01145601A CN1381614A CN 1381614 A CN1381614 A CN 1381614A CN 01145601 A CN01145601 A CN 01145601A CN 01145601 A CN01145601 A CN 01145601A CN 1381614 A CN1381614 A CN 1381614A
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M·R·亚沃罗夫斯基
M·A·克里茨曼
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Raytheon Technologies Corp
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    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
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    • C23C22/48—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 not containing phosphates, hexavalent chromium compounds, fluorides or complex fluorides, molybdates, tungstates, vanadates or oxalates
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    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/73—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals characterised by the process

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Abstract

本发明涉及一种用于由铝合金制成的零件的复合无铬转化镀层。该镀层的形成方法是:提供含有阳极抑制剂物质的第一种溶液,提供含有阴极腐蚀抑制剂物质的第二种溶液,将待镀覆的零件浸渍在第一种溶液和第二种溶液的第一种溶液中,然后浸渍在第一种溶液和第二种溶液的第二种溶液中。合适的阳极抑制剂物质包括钨酸盐、高锰酸盐、钒酸盐、钼酸盐、及其混合物。合适的阴极腐蚀抑制剂包括钴、铈、其它镧系元素、及其混合物。在一个实施方案中,转化镀层是用含有铈的溶液和含有钨酸盐的溶液形成的。

Description

用于铝合金的复合无铬转化镀层
                          发明背景
本发明涉及一种在由铝合金制成的零件上制备复合无铬转化镀层的方法。
铬酸盐转化镀层用于保护由铝合金制成的零件免遭腐蚀。这些镀层是通过用含六价铬的溶液处理零件的铝表面形成的。六价铬被国际癌症研究机构(IARC)认定为第一类或证实的人类致癌物质。因此，应尽可能避免使用这样的镀层。
                          发明概述
因此，本发明的一个目的是提供一种用于铝合金零件上的复合无铬转化镀层。
本发明的另一个目的是提供一种在由铝合金制成的零件上沉积不含铬的镀层的方法。
根据本发明，复合无铬转化镀层施用在由铝合金制成的零件上的方法是：首先将零件浸渍在含阳极抑制剂的溶液中，然后将零件浸渍在含阴极腐蚀抑制剂的溶液中。阳极抑制剂在酸性还原条件下沉积，理想地是进行价态变化到还原态。可以用于形成本发明镀层的阳极抑制剂的例子包括钨酸盐、高锰酸盐、钒酸盐、钼酸盐物质、及其混合物。阴极抑制剂在碱性还原条件下沉积，理想地是进行价态变化。阴极抑制剂的例子包括钴、铈、其他诸如镨的镧系元素、及其混合物。
在本发明的一个实施方案中，阴极腐蚀抑制剂包括在去离子水中是约10g/L至约30g/L的硝酸铈(III)，阳极抑制剂溶液是在氢氧化铵中包括10g/L的钨酸的溶液。
本发明的复合无铬转化镀层包括厚度是约0.96μm至约1.51μm的Ce2(WO4)3。
本发明的复合无铬转化镀层的其他细节和其他目的及优点将在下面的详述部分说明。
                      优选实施方案详述
本发明涉及基于通过浸渍方法使阳极和阴极腐蚀抑制化合物顺序沉积在由铝合金制成的零件上而形成的转化镀层，铝合金的例子是基本上由1.0wt％的镁、0.25wt％的铜、0.6wt％的硅、0.25wt％的铬和平衡量的铝及不可避免的杂质组成的铝合金6061。已经发现：用本发明的方法得到的镀层重量可以与用铬酸盐转化镀层方法得到的镀层重量相类似。镀层重量是约400-800mg/ft2。
在待涂覆的铝合金零件表面上施加本发明的镀层之前，用200-400粒度的砂纸将铝合金零件的一个表面或多个表面磨光。磨光后，用柔性洗涤剂洗涤待镀覆的表面，然后顺序用自来水、去离子水和乙醇漂洗。
将零件磨光、洗涤和漂洗后，首先在室温下将其浸渍在含有阳极抑制剂物质的溶液中，不要进行任何搅拌。阳极抑制剂物质选自于钨酸盐、高锰酸盐、钒酸盐、钼酸盐、及其混合物。适用的一种溶液是在氢氧化铵中含有约10g/L至约20g/L的钨酸，其pH是约11至约12。例如，一种合适的溶液是在氢氧化铵中含有10g/L的钨酸，其pH是11.82。优选将铝合金零件在含有阳极抑制剂的溶液中浸渍约3分钟至约15分钟。其它适用的溶液是含有约1.0g/L至约100g/L的阳极抑制剂物质的溶液。
在含有阳极抑制剂物质的溶液中浸渍后，将铝合金零件浸渍在含有阴极腐蚀抑制剂物质的溶液中，也是在室温下将零件浸渍在溶液中，不要进行任何搅拌。适用的溶液包括钴、铈、其他诸如镨的镧系元素、及其混合物。可以使用在去离子水中含有约10g/L至约50g/L、优选约10g/L至约30g/L的硝酸铈(III)且其pH是约3.5至约3.6的溶液。将铝合金零件在阴极抑制剂溶液中浸渍约3分钟至约15分钟。其他含有其他阴极腐蚀抑制剂物质的溶液也可含有约10g/L至约50g/L的阴极腐蚀抑制剂物质，在其使用过程中的浸渍时间与上述相同。
已经发现：根据本发明处理后的铝合金6061零件与未处理的铝合金6061相比，其阻透性和自然腐蚀速度都改进了10倍。
用下述实施例说明本发明的方法。
                            实施例
用三种溶液将转化镀层施加在6061铝腐蚀试片上。这三种溶液是：
溶液#1：在去离子水中的10g/L的硝酸铈(III)，pH＝3.60；
溶液#2：在去离子水中的30g/L的硝酸铈(III)，pH＝3.5；和
溶液＃3：在氢氧化铵中的10g/L的钨酸，pH＝11.82。
用220和400粒度的砂纸将腐蚀试片磨光，用柔性洗涤剂洗涤，用自来水、去离子水和乙醇漂洗。用三种不同的方法但都是在室温下和不搅拌的条件下将试片浸渍。这三种方法描述在下表中。
     方法        ＃1第一次浸渍：溶液＃3(3分钟）第二次浸渍：溶液＃1(3分钟）        ＃2第一次浸渍：溶液＃3(15分钟)第二次浸渍：溶液＃1(15分钟)       ＃3第一次浸渍：溶液＃2(3分钟）第二次浸渍：溶液＃3(3分钟)
 Ce的峰高  103点  82点  137点
 Ce的覆盖层  92mg/ft2  73mg/ft2  122mg/ft2
 W的峰高  192点  174点  262点
 W的覆盖层  232mg/ft2  211mg/ft2  317mg/ft2
 Ce2(WO4)3的厚度  1.12μm  0.96μm  1.51μm
用X射线荧光光谱仪分析铝合金零件并测定镀层重量。该方法测定的一般镀层组成列举在上表中。
用电化学阻抗光谱法评价转化镀层的质量。上面所示的镀层的阻抗谱图证实了该镀层具有抗腐蚀性，并且先用阳极抑制剂物质(钨酸盐)处理然后用阴极抑制剂物质(铈)处理可以得到最佳效果。但是，如果需要，铝合金零件可以先浸渍在含有阴极抑制剂物质的溶液中然后浸渍在含有阳极抑制剂物质的溶液中。
根据本发明的一个实施方案形成的镀层包括厚度是约0.96μm至约1.51μm的Ce2(WO4)3。
很明显，本发明提供了一种能够达到上述目的、方法和优点的用于铝合金的复合无铬转化镀层。虽然本发明是用其具体实施方案来说明的，但是，对于阅读过上述说明的本领域普通技术人员来说，其他的一些替换、改进和变化是显而易见的。因此，所附的权利要求书的保护范围应当包括那些替换、改进和变化。

Claims (15)

1、一种用于由铝合金制成的零件的复合无铬转化镀层，所说的镀层含有阳极抑制剂物质和阴极腐蚀抑制剂物质。
2、根据权利要求1所述的转化镀层，其中，所说的阳极抑制剂物质选自于钨酸盐、高锰酸盐、钒酸盐、钼酸盐、及其混合物。
3、根据权利要求1所述的转化镀层，其中，所说的阴极腐蚀抑制剂物质选自于钴、铈、其它镧系元素、及其混合物。
4、根据权利要求1所述的转化镀层，其中，所说的镀层包括Ce2(WO4)3，镀层重量是约400mg/ft2至约800mg/ft2。
5、根据权利要求1所述的转化镀层，其中，所说的镀层含有铈和钨酸盐。
6、一种在铝合金零件上形成无铬转化镀层的方法，其包括下述步骤：
提供含有阳极抑制剂物质的第一种溶液；
提供含有阴极腐蚀抑制剂物质的第二种溶液；和
将所说的铝合金零件浸渍在所说的的第一种溶液和第二种溶液中的第一种溶液中，然后浸渍在所说的的第一种溶液和第二种溶液中的第二种溶液中。
7、根据权利要求6所述的方法，其中所说的提供第一种溶液的步骤包括提供含有浓度是约10g/L至约20g/L的选自于钨酸盐、高锰酸盐、钒酸盐、钼酸盐、及其混合物的阳极抑制剂物质的溶液。
8、根据权利要求6所述的方法，其中所说的提供第二种溶液的步骤包括提供含有浓度是约10g/L至约50g/L的选自于钴、铈、其他镧系元素、及其混合物的阴极腐蚀抑制剂物质的溶液。
9、根据权利要求6所述的方法，其中所说的浸渍步骤包括将所说的铝合金零件浸渍在所说的第一种溶液中，然后浸渍在所说的第二种溶液中。
10、根据权利要求6所述的方法，其中所说的浸渍步骤包括将所说的铝合金零件浸渍在所说的第二种溶液中，然后浸渍在所说的第一种溶液中。
11、根据权利要求6所述的方法，其中所说的第一种溶液和第二种溶液都保持于室温，将所说的铝合金零件在不搅拌的条件下浸渍在所说的溶液中。
12、根据权利要求6所述的方法，其中所说的提供第一种溶液的步骤包括提供pH是约11-12且含有在氢氧化铵中浓度是约10g/L至约20g/L的钨酸的溶液，其中，所说的铝合金零件在所说的第一种溶液中的浸渍时间是约3分钟至约15分钟。
13、根据权利要求6所述的方法，其中所说的提供第二种溶液的步骤包括提供pH是约3.5至约3.6且含有在去离子水中浓度是约10g/L至约50g/L的硝酸铈(III)的溶液，所说的铝合金零件在所说的第二种溶液中的浸渍时间是约3分钟至约15分钟。
14、根据权利要求6所述的方法，在将所说的铝合金零件浸渍在所说的的第一种溶液和第二种溶液中的第一种溶液之前，其还包括将待镀覆的所说的铝合金的至少一个表面进行磨光处理，用柔性洗涤剂洗涤所说的至少一个表面，然后将所说的至少一个表面漂洗。
15、根据权利要求14所述的方法，其中所说的漂洗步骤包括将所说的至少一个表面顺序在自来水、去离子水和乙醇中漂洗。
CNB011456019A 2000-12-19 2001-12-18 用于铝合金的复合无铬转化镀层 Expired - Fee Related CN1250769C (zh)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100335680C (zh) * 2004-04-15 2007-09-05 郭瑞光 铝合金无铬化学转化液及其使用方法
CN100420722C (zh) * 2003-07-15 2008-09-24 达克拉尔 钇、锆、镧、铈、镨和/或钕作为防腐蚀涂料组合物增强剂的用途
CN101058874B (zh) * 2007-04-02 2010-12-08 合肥华清金属表面处理有限责任公司 一种水基中性钢铁无铬强钝化剂
CN102409330A (zh) * 2011-11-25 2012-04-11 潍坊学院 一种无铬钝化液

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7294211B2 (en) * 2002-01-04 2007-11-13 University Of Dayton Non-toxic corrosion-protection conversion coats based on cobalt
US7341677B2 (en) 2003-06-30 2008-03-11 United Technologies Corporation Non-carcinogenic corrosion inhibiting additive
DE102005023728A1 (de) 2005-05-23 2006-11-30 Basf Coatings Ag Lackschichtbildendes Korrosionsschutzmittel und Verfahren zu dessen stromfreier Applikation
ES2523645T3 (es) * 2005-07-08 2014-11-28 Henkel Corporation Composiciones de imprimación para sistemas de unión adhesiva
DE102006053291A1 (de) 2006-11-13 2008-05-15 Basf Coatings Ag Lackschichtbildendes Korrosionsschutzmittel mit guter Haftung und Verfahren zu dessen stromfreier Applikation
US20090004486A1 (en) 2007-06-27 2009-01-01 Sarah Arsenault Corrosion inhibiting additive
US8283044B2 (en) * 2007-08-01 2012-10-09 United Technologies Corporation Conversion coatings with conductive additives, processes for applying same and their coated articles
US20090061184A1 (en) * 2007-08-31 2009-03-05 United Technologies Corporation Processes for Applying a Conversion Coating with Conductive Additive(S) and the Resultant Coated Articles
DE102009007632A1 (de) 2009-02-05 2010-08-12 Basf Coatings Ag Beschichtungsmittel für korrosionsstabile Lackierungen
JP6184051B2 (ja) * 2011-09-21 2017-08-23 日本ペイント・サーフケミカルズ株式会社 アルミニウム製熱交換器の表面処理方法
JP6486334B2 (ja) * 2013-05-14 2019-03-20 ピーアールシー−デソト インターナショナル，インコーポレイティド パーマンガネート系化成コーティング組成物
EP2915903B1 (en) 2014-03-05 2018-02-21 The Boeing Company Chromium-free conversion coating
CN107250435A (zh) * 2015-09-16 2017-10-13 奥野制药工业株式会社 铝或铝合金用化成处理液、化成处理方法和化成被膜
CA3084442A1 (en) * 2017-12-08 2019-06-13 Board of Regents of the Nevada System of Higher Education, on behalf of the University of Nevada Reno Molybdate-based composition and conversion coating
KR102040978B1 (ko) * 2018-06-29 2019-11-05 한국항공우주연구원 알루미늄계 금속 재료의 표면 처리 방법
CN109468630B (zh) * 2018-10-30 2021-02-05 昆明理工大学 一种电镀锌碱性金色钝化液

Family Cites Families (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3066055A (en) * 1958-11-10 1962-11-27 Purex Corp Ltd Process and composition for producing aluminum surface conversion coatings
US3849264A (en) * 1972-09-05 1974-11-19 Lockheed Aircraft Corp Production of stain resistant, clear, sealed anodized films
US4119763A (en) 1974-09-27 1978-10-10 Hooker Chemicals & Plastics Corp. Anti-corrosion weldable coatings
SU1120223A1 (ru) * 1983-06-29 1984-10-23 Горьковский ордена Трудового Красного Знамени научно-исследовательский радиофизический институт Способ измерени диэлектрических потерь
SU1120233A1 (ru) 1983-07-15 1984-10-23 Тюменский индустриальный институт им.Ленинского комсомола Способ инверсионного электрохимического определени вольфрамат-ионов
US4711667A (en) * 1986-08-29 1987-12-08 Sanchem, Inc. Corrosion resistant aluminum coating
US5244956A (en) 1988-08-09 1993-09-14 Lockheed Corporation Corrosion inhibiting coating composition
US5194138A (en) * 1990-07-20 1993-03-16 The University Of Southern California Method for creating a corrosion-resistant aluminum surface
JPH04218681A (ja) * 1990-12-19 1992-08-10 Nippon Parkerizing Co Ltd アルミニウムと鋼材を組み合わせた成形物の表面処理方法および処理液
DE4041091A1 (de) 1990-12-21 1992-06-25 Metallgesellschaft Ag Verfahren zur nachspuelung von konversionsschichten
US5192447A (en) 1991-07-09 1993-03-09 Nalco Chemical Company Use of molybdate as a cooling water corrosion inhibitor at higher temperatures
US5221371A (en) * 1991-09-03 1993-06-22 Lockheed Corporation Non-toxic corrosion resistant conversion coating for aluminum and aluminum alloys and the process for making the same
GB2259920A (en) * 1991-09-10 1993-03-31 Gibson Chem Ltd Surface conversion coating solution based on molybdenum and phosphate compounds
US5192374A (en) * 1991-09-27 1993-03-09 Hughes Aircraft Company Chromium-free method and composition to protect aluminum
US5266611A (en) 1992-07-21 1993-11-30 The Dexter Corporation Waterborne epoxy derived adhesive primers
WO1994012687A1 (en) 1992-11-26 1994-06-09 Bhp Steel (Jla) Pty. Ltd. Anti corrosion treatment of aluminium or aluminium alloy surfaces
US5356492A (en) * 1993-04-30 1994-10-18 Locheed Corporation Non-toxic corrosion resistant conversion process coating for aluminum and aluminum alloys
US5322560A (en) 1993-08-31 1994-06-21 Basf Corporation Aluminum flake pigment treated with time release corrosion inhibiting compounds and coatings containing the same
CN1090684C (zh) 1993-11-16 2002-09-11 帝国化学工业澳大利亚作业有限公司 带有锌或锌铝合金镀层的钢表面处理方法
US5582654A (en) * 1994-05-20 1996-12-10 The University Of Southern California Method for creating a corrosion-resistant surface on aluminum alloys having a high copper content
WO1996015292A1 (en) * 1994-11-11 1996-05-23 Commonwealth Scientific And Industrial Research Organisation Process and solution for providing a conversion coating on a metal surface
JPH08176891A (ja) 1994-12-27 1996-07-09 Nippon Steel Corp ステンレス鋼の表面処理方法
EP0902103B1 (en) * 1996-02-05 2004-12-29 Nippon Steel Corporation Surface-treated metallic material with corrosion resistance and surface treatment used therefor
US5866652A (en) 1996-02-27 1999-02-02 The Boeing Company Chromate-free protective coatings
JP3454010B2 (ja) 1996-03-29 2003-10-06 日本軽金属株式会社 ノンクロム型金属防食用被覆組成物
US5873953A (en) * 1996-12-26 1999-02-23 The Boeing Company Non-chromated oxide coating for aluminum substrates
US6248184B1 (en) 1997-05-12 2001-06-19 The Boeing Company Use of rare earth metal salt solutions for sealing or anodized aluminum for corosion protection and paint adhesion
US6315823B1 (en) 1998-05-15 2001-11-13 Henkel Corporation Lithium and vanadium containing sealing composition and process therewith
US6162508A (en) * 1998-11-02 2000-12-19 Nortel Networks Limited Molybdenum phosphate based corrosion resistant conversion coatings
US6312812B1 (en) 1998-12-01 2001-11-06 Ppg Industries Ohio, Inc. Coated metal substrates and methods for preparing and inhibiting corrosion of the same
WO2000036176A2 (en) 1998-12-15 2000-06-22 Lynntech, Inc. Polymetalate and heteropolymetalate conversion coatings for metal substrates
US6451443B1 (en) * 1999-02-19 2002-09-17 University Of New Orleans Research And Technology Foundation, Inc. Chromium-free conversion coating
AU2001261544A1 (en) 2000-05-11 2001-11-20 Henkel Corporation Metal surface treatment agent
US6537678B1 (en) * 2000-09-20 2003-03-25 United Technologies Corporation Non-carcinogenic corrosion inhibiting additive

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100420722C (zh) * 2003-07-15 2008-09-24 达克拉尔 钇、锆、镧、铈、镨和/或钕作为防腐蚀涂料组合物增强剂的用途
CN100335680C (zh) * 2004-04-15 2007-09-05 郭瑞光 铝合金无铬化学转化液及其使用方法
CN101058874B (zh) * 2007-04-02 2010-12-08 合肥华清金属表面处理有限责任公司 一种水基中性钢铁无铬强钝化剂
CN102409330A (zh) * 2011-11-25 2012-04-11 潍坊学院 一种无铬钝化液

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