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EP1141448A2 - Procede ameliore d'etancheification pour surfaces metalliques anodisees - Google Patents

Procede ameliore d'etancheification pour surfaces metalliques anodisees

Info

Publication number
EP1141448A2
EP1141448A2 EP99968340A EP99968340A EP1141448A2 EP 1141448 A2 EP1141448 A2 EP 1141448A2 EP 99968340 A EP99968340 A EP 99968340A EP 99968340 A EP99968340 A EP 99968340A EP 1141448 A2 EP1141448 A2 EP 1141448A2
Authority
EP
European Patent Office
Prior art keywords
acids
metal surfaces
total
acid
aqueous solution
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP99968340A
Other languages
German (de)
English (en)
Inventor
Josef Kresse
Gabriele Hecht
Alina Monica Koch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Henkel AG and Co KGaA
Original Assignee
Henkel AG and Co KGaA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Henkel AG and Co KGaA filed Critical Henkel AG and Co KGaA
Publication of EP1141448A2 publication Critical patent/EP1141448A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
    • C25D11/02—Anodisation
    • C25D11/04—Anodisation of aluminium or alloys based thereon
    • C25D11/18—After-treatment, e.g. pore-sealing
    • C25D11/24—Chemical after-treatment
    • C25D11/246—Chemical after-treatment for sealing layers

Definitions

  • the invention is in the field of producing anti-corrosion and / or decorative coatings on metals by anodic oxidation. It relates to an improved method for compacting the electrochemically produced porous anodizing layers to further improve their properties, in particular to reduce dirt adhesion.
  • the electrochemical anodic oxidation of metals in suitable electrolytes is a widespread process for the formation of corrosion-protective and / or decorative coatings on suitable metals. These methods are briefly characterized, for example, in Ullmann's Encyclopedia of Industrial Chemistry, 5th Edition, Vol. 9 (1987), pp. 174-176. Accordingly, titanium, magnesium and aluminum and their alloys can be anodized, the anodization of aluminum and its alloys having the greatest technical importance.
  • the electrolytically produced anodizing layers protect the aluminum surfaces from the effects of the weather and other corrosive media. Anodizing layers are also applied in order to obtain a harder surface and thus to achieve increased wear resistance of the aluminum.
  • the aluminum is anodized in an acidic electrolyte, with sulfuric acid being the most common.
  • Other suitable electrolytes are phosphoric acid, oxalic acid and chromic acid.
  • the properties of the anodizing layers can be varied within wide limits by the choice of the electrolyte, its temperature, the current density and the anodizing time.
  • the anodization is usually carried out with direct current or with an alternating current superimposed direct current.
  • the fresh anodizing layers can be subsequently colored by dipping in solutions of a suitable dye or by an alternating current treatment in an electrolyte containing metal salts, preferably in an electrolyte containing tin.
  • colored anodizing layers can be obtained by so-called color anodizing processes, for which anodizing in solutions of organic acids, such as, in particular, sulfophthalic acid or sulfanilic acid, optionally in each case in a mixture with sulfuric acid, is used.
  • phosphonic acids for example 1-phosphonopropane1, 2,3-tricarboxylic acid
  • further phosphonic acids is known from EP-A-122 129.
  • DE-C-22 11 553 describes a process for compacting anodic oxide layers on aluminum and aluminum alloys in aqueous solutions containing phosphonic acids or their salts and calcium ions, the molar ratio of calcium ions: phosphonic acid being set to at least 2: 1.
  • a higher calcium ion: phosphonic acid ratio of about 5: 1 to about 500: 1 is used.
  • Suitable phosphonic acids are: 1-hydroxypropane, 1-hydroxybutane, 1-hydroxypentane, 1-hydroxyhexane1, 1-diphosphonic acid and 1-hydroxy-1-phenylmethane-1, 1-diphosphonic acid and preferably 1-hydroxyethane-1 , 1-diphosphonic acid, 1-aminoethane, 1-amino-1-phenylmethane, dimethyiaminoethane, dimethylaminobutane,
  • nickel salts in particular fluorides, which are sometimes used in practice (EP 171 799), nitrosylpentacyanoferrate, complex fluorides of titanium and zirconium, and chromates or chromic acid, if necessary in conjunction with other additives.
  • fluorides which are sometimes used in practice
  • nitrosylpentacyanoferrate complex fluorides of titanium and zirconium
  • chromates or chromic acid if necessary in conjunction with other additives.
  • a short-term hot compression process is known from US Pat. No. 5,411,607, in which the anodized metal parts are immersed in a lithium-containing aqueous solution.
  • the lithium concentration is preferably in the range from 0.01 to 50 g / l and in particular in the range from 0.01 to 5 g / l.
  • the compaction solution additionally contain a sealant preventing agent. This is preferably present in a concentration between 0.1 and 10 g / l and is preferably an aromatic disulfonate.
  • a short-term hot compression with an aqueous solution take place, which contains at least 0.01 g / l of lithium ions and from 0.1 to 10 g / l of a sealing deposit inhibitor.
  • the sealing deposit inhibitor is preferably an aromatic disulfonate.
  • DE-A-196 21 819 points in a similar direction. It relates to a method for compacting anodized metal surfaces, characterized in that the anodized metal is in contact with an aqueous solution for a period of between 0.5 and 2 minutes per micrometer of anodizing layer thickness brings, which has a temperature between 75 ° C and the boiling point and a pH in the range of 5.5 to 8.5 and which a) a total of 0.0001 to 0.01 g / l of one or more alkali metal and / or alkaline earth metal ions and b) contains a total of 0.0005 to 0.5 g / l of one or more organic acids selected from cyclic polycarboxylic acids with 3 to 6 carboxyl groups and / or phosphonic acids, the solution containing a larger amount of the metal ions of group a), than is necessary for the complete neutralization of the acids of group b).
  • DE-A-196 21 818 teaches a method for compacting anodized metal surfaces, characterized in that the anodized metal is brought into contact with an aqueous solution which has a temperature of between 75 and 0.5 minutes per micrometer of anodizing layer thickness ° C and the boiling point and has a pH in the range of 5.5 to 8.5 and the a) a total of 0.0004 to 0.05 g / l, preferably 0.005 to 0.02 g / l, of one or more cationic, anionic or nonionic surfactants and b) a total of 0.0005 to 0.5 g / l of one or more organic acids selected from cyclic polycarboxylic acids with 3 to 6 carboxyl groups and / or phosphonic acids
  • the present invention relates to a process for the aftertreatment of anodized metal surfaces, the metal surfaces being brought into contact with an aqueous solution which has a pH in the range from 1 to 14 and which has a pH value in the range from 1 to 14 for densification or after densification Contains up to 10 g / l of one or more acids with fluoroalkyl groups with 2 to 22 carbon atoms and / or fluorinated polymers or copolymers of acrylic acid and / or methacrylic acid or the salts of these acids.
  • the monomeric and / or polymeric acids mentioned with fluoroalkyl groups - with the exception of additives for adjusting the pH - can be the only active ingredients dissolved in the aqueous solution. If necessary, ammonia or, in particular, are used to adjust the pH Acetic acid in question. In principle, it is irrelevant whether the monomeric and / or polymeric acids are used as such or in the form of their salts. Due to the adjustment of the pH value to the range mentioned, the equilibrium between free acid and acid anions is adjusted according to the acid constant of the respective acid.
  • the fluorine-containing acids mentioned are used during the densification of the anodizing layers.
  • This embodiment of the invention is accordingly characterized in that the anodized metal surfaces are compacted by contacting the metal surfaces with an aqueous solution having a pH in the range of 5 for a period of between 0.5 and 4 minutes per micrometer of anodizing layer thickness , 5 to 8.5 and which contains 0.01 to 10 g / l of one or more acids with fluoroalkyl groups with 2 to 22 carbon atoms and / or fluorinated polymers or copolymers of acrylic acid and / or methacrylic acid or in each case the salts of these acids .
  • the acids mentioned with fluoroalkyl groups can also be used together with other components, the beneficial effects of which are known when compacting anodizing layers and which can contribute, for example, to reducing the sealing coatings, lowering the sealing temperature and shortening the compression time. Examples of such substance groups and individual substances were enumerated in the description of the prior art.
  • preferred embodiments of the present invention can consist in the aqueous solution for compacting additionally containing one or more of the following constituents: a) a total of 0.0005 to 0.5 g / l of one or more organic acids without fluoroalkyl groups, selected from cyclic polycarboxylic acids with 3 to 6 carboxyl groups and / or phosphonic acids, b) a total of 0.0004 to 0.05 g / l of one or more cationic, anionic or nonionic surfactants, c) a total of 0.0001 to 0.01 g / l of lithium and / or magnesium ions. d) 1.2 to 2.0 g / l of nickel ions and 0.5 to 0.8 g / l of fluoride ions
  • the anodizing layers are compacted according to one of the methods known in the prior art, which were described as examples in the introduction. Following this compaction, if necessary after an intermediate rinsing with water, the anodized and compacted metal surfaces are brought into contact with the fluorine-containing acids already mentioned above.
  • an alternative embodiment of the invention is to densify the anodized metal surfaces by contacting the metal surfaces with an aqueous solution having a pH in the range of 5 for a period of between 0.5 and 4 minutes per micron of anodizing layer thickness , 5 to 8.5 and which contains one or more of the following constituents: a) a total of 0.0005 to 0.5 g / l of one or more organic acids without fluoroalkyl groups, selected from cyclic polycarboxylic acids with 3 to 6 carboxyl groups and / or Phosphonic acids, b) a total of 0.0004 to 0.05 g / l of one or more cationic, anionic or nonionic surfactants, c) a total of 0.0001 to 0.01 g / l of lithium and / or magnesium ions, d) 1, 2 to 2.0 nickel ions and 0.5 to 0.8 g / l fluoride ions and then for a period in the range from 5 seconds to 15 minutes in contact
  • the organic acids of group a) are preferably selected from saturated, unsaturated or aromatic carbocyclic six-ring carboxylic acids having 3 to 6 carboxyl groups.
  • Preferred examples of such acids are trimesic acid, trimellitic acid, pyromellitic acid, mellitic acid and the most preferred Cyclohexane hexacarboxylic acid.
  • the total amount of carboxylic acids is preferably in the range 0.001 to 0.05 g / l.
  • cyclohexane hexacarboxylic acid exists in the form of different stereoisomers. As known from DE-A-26 50 989, those cyclohexane hexacarboxylic acids are preferred which carry 5 cis and 1 trans or the 4 cis and 2 trans carboxyl groups.
  • the organic acids of group a) are selected from the phosphonic acids: 1-phosphonopropane-1, 2,3-tricarboxylic acid, 1, 1-diphosphonopropane-2,3-dicarboxylic acid, 1-hydroxypropane-1, 1- diphosphonic acid, 1-hydroxybutane-1, 1-diphosphonic acid, 1-hydroxy-1-phenylmethane-1, 1 -diphosphonic acid, 1 -hydroxyethane-1, 1 -diphosphonic acid, 1 - aminoethane-1, 1 -diphosphonic acid, 1-amino- 1-phenylmethane-1, 1 -diphosphonic acid, dimethylaminoethane-1, 1 diphosphonic acid, propylaminoethane-1, 1 - diphosphonic acid, butylaminoethane-1, 1 -diphosphonic acid, aminotri (methylenephosphonic acid), ethylenediaminotetra (methylenephosphonic acid), diethylenetriaminophenonic
  • 1-phosphonopropane-1,3,3-tricarboxylic acid, 1,1-diphosphonopropane-2,3-dicarboxylic acid, aminotri (methylenephosphonic acid) are particularly preferred.
  • the group b) phosphonic acids are preferably used in an amount of 0.003 to 0.05 g / l.
  • Polyphosphinocarboxylic acids which can be regarded as copolymers of acrylic acid and hypophosphites, are also suitable. An example of this is Belclene ® 500 from FMC Corporation, Great Britain.
  • Cationic surfactants from group b) can be selected, for example, from quaternary ammonium salts in which at least one alkyl or arylalkyl radical has at least 8 carbon atoms.
  • An example of this is C ⁇ 2 - ⁇ - Alkyldimethylbenzymiammonium chloride.
  • Pyridinium salts such as dodecylpyridinium chloride can also be used as cationic surfactants.
  • anionic surfactants from group b) which can be used are alkyl or alkylaryl sulfates and sulfonates. Linear alkyl sulfates such as lauryl sulfate are preferred for environmental reasons.
  • the anionic surfactants can be used as alkali or ammonium salts, with lithium salts being particularly preferred.
  • nonionic surfactants are preferably used as group b) surfactants.
  • These can for example be selected from alkoxylates such as ethoxylates and / or propoxylates of fatty alcohols or fatty amines.
  • fatty alcohols and fatty amines are understood to mean compounds with an alkyl radical with at least 8 carbon atoms.
  • Such substances can consist of pure substances with a defined alkyl radical or of product mixtures as they are obtained from natural fats and oils.
  • the alkoxylates can also be end group capped, i.e. H. be etherified again at the terminal OH group.
  • a further preferred embodiment consists in that the aqueous solution additionally contains a total of 0.0001 to 0.01 g / l of lithium and / or magnesium ions.
  • the use of components a), b) and / or c) means that compression times can be selected which are in the lower half of the specified time period and can be between approximately 0.5 and approximately 2 minutes per ⁇ m anodizing layer thickness.
  • the compression bath may contain 1.2 to 2.0 g / l of nickel ions and 0.5 to 0.8 g / l of fluoride ions. This component makes it possible to operate the compression as a so-called cold compression, ie in the temperature range between about 15 and about 70 ° C.
  • the compression can take place in the so-called medium temperature range, that is from about 70 to about 90 ° C., or in the so-called hot temperature range, that is to say between 90 ° C. and the boiling point of the compression bath, these temperature specifications apply to the compression process regardless of which of the two described embodiments of the method according to the invention is used.
  • the aqueous solution of the fluorine-containing acids can have a temperature in the range between approximately 15 ° C. and the boiling point of the solution.
  • the time at which the compacted metal surfaces are brought into contact with the aqueous solution of the fluorine-containing carboxylic acids can be chosen to be shorter, the higher the temperature of this aqueous solution.
  • the acids to be used according to the invention with fluoroalkyl groups with 2 to 22 carbon atoms are preferably selected from fluorocarboxylic acids, fluoroalkylphosphinic acids, fluoroalkylphosphonic acids, fluoroalkylphosphonic acid esters with still free acid functions and from fluoroalkylsulfonic acids.
  • Those acids with fluoroalkyl groups in which these fluoroalkyl groups represent perfluoroalkyl groups are particularly preferred. However, this should not be understood to mean that the entire acid molecule must be perfluorinated. Rather, it can also carry unfluorinated methylene or methyl groups.
  • the method according to the invention can be used for the aftertreatment of anodized metal surfaces in which the thickness of the anodizing layer is in the range of normal anodizing layer thicknesses (approximately 15 to approximately 25 ⁇ m, in particular approximately 18 to approximately 22 ⁇ m) or in the region of thin-layer anodizing (approximately 1 ⁇ m to about 15 ⁇ m).
  • the compression bath with the fluorine-containing organic acids which is suitable for the compression process according to the invention, can in principle be produced on site by dissolving the constituents in - preferably fully deionized - water.
  • an aqueous concentrate is used to prepare the compression baths, which already contains all the necessary components of the compression bath in the correct proportions and from which the ready-to-use solution is obtained by dilution with water, for example by a folding gate between about 10 and about 1000.
  • the pH must be adjusted to the range according to the invention with ammonia or with acetic acid.
  • the invention accordingly also comprises an aqueous concentrate for the preparation of the aqueous solution for use in the compression process according to the invention, the concentrate yielding the ready-to-use aqueous solution by dilution with water by a factor of between about 10 and about 1000.
  • the method according to the invention provides compressed anodizing layers, the quality characteristics of which correspond to those laid down in technical rules (for example those of the Qualanod).
  • these compressed anodizing layers also show a further property which is less pronounced in the anodizing layers produced according to the prior art. Dirt particles adhere less well to the surface, so that under the same conditions it becomes less quickly soiled and the dirt is relatively easy to remove. When used in the field of exterior architecture, this means that soiling on the anodized metal surfaces treated according to the invention is easily washed off by precipitation.
  • a further aspect of the present invention lies in the use of acids with fluoroalkyl groups with 2 to 22 carbon atoms and / or fluorinated polymers or copolymers of acrylic acid and / or methacrylic acid or the salts of these acids in each case to reduce the dirt adhesion on anodized metal surfaces.
  • This use consists in that the acids mentioned with fluoroalkyl groups, for which the above-mentioned details apply, are used in the course of one of the aftertreatment processes described in more detail above. To reduce the dirt adherence on anodized metal surfaces, the acids with fluoroalkyl groups specified above are accordingly used in the aftertreatment processes described above. The features of this use are summarized again in claims 9 to 12.
  • the anodized aluminum sheets with an anodizing layer thickness in the range from about 18 to about 20 ⁇ m were then compacted with compression solutions according to the tables below for 60 minutes at a temperature between 95 and 100 ° C. In all cases the surface appearance was judged to be good. The following were measured as quality parameters:
  • Acid removal in mg / dm 2 determined in accordance with ISO 3210.
  • the test sheet is weighed to the nearest 0.1 mg and then immersed for 15 minutes at 38 ° C. in an acid solution containing 35 ml of 85% per liter Contains phosphoric acid and 20 g of chromium (VI) oxide.
  • the sample is rinsed with deionized water and dried in a drying cabinet at 60 ° C. for 15 minutes. The sample is then weighed again. The weight difference between the first and the second measurement is calculated and divided by the size of the surface in dm 2 .
  • the apparent value Y20 was determined in accordance with German standard DIN 50949 using an Anotest YD 8.1 measuring device from Fischer.
  • the measuring system consists of two electrodes, one of which is conductively connected to the base material of the sample.
  • the second electrode is immersed in an electrolyte cell that can be placed on the layer to be examined.
  • This cell is designed as a rubber ring with an inner diameter of 13 mm and a thickness of approximately 5 mm, the ring surface of which is self-adhesive.
  • the measuring area is 1.33 cm 2 .
  • a potassium sulfate solution (35 g / l) in deionized water is used as the electrolyte.
  • the apparent conductance readable on the measuring device is converted to a measuring temperature of 25 ° C and a layer thickness of 20 ⁇ m in accordance with the specifications of DIN 50949.
  • the values obtained, which should preferably be in the range between approximately 10 and approximately 20 ⁇ S, are entered in the table.
  • Paint drop test according to ISO 2143. Here it is checked how strongly a dye solution is absorbed on the anodized surface.
  • a drop of an acid solution hexafluorosilicic acid or a solution of potassium fluoride in sulfuric acid
  • the drop of acid is then washed off and the sample surface is allowed to dry.
  • a drop of a dye solution (aluminum blue 2 LW or Sanodal red B3 LW) with a pH value in the range between about 5 and about 6 and a temperature of about 23 ° C is applied to the same place on the sample sheet and left to act for one minute.
  • the drop of the dye solution is rinsed off and the test surface wiped with a damp cloth. It is then dried.
  • the intensity of the color spot remaining on the test surface is assessed visually in comparison with a comparison scale specified in the test specification.
  • the intensity of the coloring is expressed by a grading scale between 0 and 5, with the rating 0 standing for no coloring (corresponding to a non-absorbent surface) and the rating 5 standing for strong coloring (corresponding to a fully absorbent anodizing layer). The lower the test grade, the better compressed the anodizing layer is considered. 4. Soiling behavior. A 5% was used as test soiling
  • the ⁇ value is calculated in%:
  • Repetition of steps 3b) to g) to ⁇ L * or ⁇ GE are constant or significantly larger than that of an uncoated test plate (zero plate).
  • Table 2 contains information on the relative color value and relative gloss per soiling cycle, the use of perfluorinated monoalkyl phosphate according to the invention being compared with the use of the standard compression bath additive cyclohexane hexacarboxylic acid which serves as a comparison. Table 2 shows that in the treatment according to the invention, the color and gloss values change only slightly from cycle to cycle, while there is a clear deterioration in the comparison sheets, which indicates firmly adhering dirt. Table 2: Soiling behavior.
  • Aluminum sheets were prepared as described under A). Thereafter, they were compacted according to a method according to the prior art in an aqueous solution of 13.2 mg / l cyclohexane hexacarboxylic acid at a temperature of 95 ° C. and a pH in the range from 5.5 to 6 for 30 or 60 minutes. They were then immersed in a solution which still contained 7 g / l of Zonyl R FSP (see Table 1), was at room temperature and had a pH of 7. The sheets were then dried with compressed air. The surface quality was tested according to Qualanod, as described under A) above. The results are shown in Table 3. Table 3: Treatment parameters and surface qualities during compaction and subsequent treatment with perfluorinated monoalkyl phosphate Zonyl R FSP
  • Table 7 X-ray fluorescence pulse rate at different pH of the Zonyl R FSP solution, adjusted with acetic acid or ammonia; Concentration 0.7% by weight, room temperature

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  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Treatment Of Metals (AREA)

Abstract

Procédé de traitement postérieur de surfaces métalliques anodisées selon lequel les surfaces métalliques sont mises en contact avec une solution aqueuse à des fins d'étanchéification ou après l'étanchéification. Ladite solution possède une valeur pH de l'ordre de 1 à 14 et contient 0,01 à 10 g/l d'un ou plusieurs acides possédant des groupes fluoroalkyle ayant de 2 à 22 atomes de C et/ou de polymères ou copolymères fluorés d'acide acrylique et/ou d'acide méthacrylique ou de sels de ces acides. La présente invention concerne également l'utilisation d'acides contenant des groupes fluoroalkyle ayant 2 à 22 atomes de C et/ou de polymères ou copolymères fluorés d'acide acrylique et/ou méthacrylique ou de sels de ces acides pour diminuer l'adhérence des salissures sur des surfaces métalliques anodisées.
EP99968340A 1998-12-16 1999-12-07 Procede ameliore d'etancheification pour surfaces metalliques anodisees Withdrawn EP1141448A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE1998158034 DE19858034A1 (de) 1998-12-16 1998-12-16 Verbessertes Verdichtungsverfahren für anodisierte Metalloberflächen
DE19858034 1998-12-16
PCT/EP1999/009549 WO2000036190A2 (fr) 1998-12-16 1999-12-07 Procede ameliore d'etancheification pour surfaces metalliques anodisees

Publications (1)

Publication Number Publication Date
EP1141448A2 true EP1141448A2 (fr) 2001-10-10

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EP99968340A Withdrawn EP1141448A2 (fr) 1998-12-16 1999-12-07 Procede ameliore d'etancheification pour surfaces metalliques anodisees

Country Status (6)

Country Link
EP (1) EP1141448A2 (fr)
JP (1) JP2002532631A (fr)
AU (1) AU2537600A (fr)
CA (1) CA2356190A1 (fr)
DE (1) DE19858034A1 (fr)
WO (1) WO2000036190A2 (fr)

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DE10161478A1 (de) * 2001-12-14 2003-06-26 Henkel Kgaa Verfahren zum Verdichten von anodisierten Metalloberflächen im mittleren Temperaturbereich
DE10161847A1 (de) * 2001-12-15 2003-06-26 Henkel Kgaa Verdichtung von anodisierten Metalloberflächen zur Verbesserung des Witterungsverhaltens
CN103392030B (zh) * 2011-02-18 2017-02-15 爱信轻金属株式会社 金属部件的表面处理方法以及由该方法得到的金属部件
DE102012000414B4 (de) * 2012-01-12 2014-03-20 Thyssenkrupp Rasselstein Gmbh Verfahren zur Passivierung von Weißblech, sowie verzinntes Stahlband oder -blech
JP5995144B2 (ja) * 2013-03-08 2016-09-21 スズキ株式会社 アルミニウム系部材の修復方法、修復処理液、アルミニウム系材料およびその製造方法
JP6361956B2 (ja) 2014-02-18 2018-07-25 スズキ株式会社 耐食性に優れた金属部材およびその製造方法、ならびに金属部材の補修材および補修方法
DE102015208076A1 (de) * 2015-04-30 2016-11-03 Henkel Ag & Co. Kgaa Verfahren zur Versieglung von oxidischen Schutzschichten auf Metallsubstraten
CN104988555A (zh) * 2015-07-22 2015-10-21 马鞍山市华冶铝业有限责任公司 一种铝型材封闭剂及其制备方法、应用和应用方法
CN104988554A (zh) * 2015-07-22 2015-10-21 上海英汇科技发展有限公司 一种高低温复合式阳极氧化封孔方法

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JPS6015718B2 (ja) * 1982-02-26 1985-04-20 株式会社フジクラ アルミニウムまたはアルミニウム合金の表面処理方法
IT1205633B (it) * 1983-03-28 1989-03-23 Boston Spa Procedimento e bagno per il fissaggio dell' alluminio e leghe d'alluminio a seguito del trattamento di anodizzazione
JP3239137B2 (ja) * 1994-03-28 2001-12-17 三菱マテリアル株式会社 アルミニウム又はその合金及びその表面処理法
JPH08158096A (ja) * 1994-12-08 1996-06-18 Mitsubishi Materials Corp アルミニウム又はその合金の表面処理方法
DE19621819A1 (de) * 1996-05-31 1997-12-04 Henkel Kgaa Kurzzeit-Heißverdichtung anodisierter Metalloberflächen
DE19621818A1 (de) * 1996-05-31 1997-12-04 Henkel Kgaa Kurzzeit-Heißverdichtung anodisierter Metalloberflächen mit tensidhaltigen Lösungen

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Also Published As

Publication number Publication date
DE19858034A1 (de) 2000-06-21
WO2000036190A2 (fr) 2000-06-22
CA2356190A1 (fr) 2000-06-22
AU2537600A (en) 2000-07-03
WO2000036190A3 (fr) 2000-11-09
JP2002532631A (ja) 2002-10-02

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