EP2828421A2 - Traitement d'une surface oxydée par oxydation anodique - Google Patents

Traitement d'une surface oxydée par oxydation anodique

Info

Publication number
EP2828421A2
EP2828421A2 EP13711670.3A EP13711670A EP2828421A2 EP 2828421 A2 EP2828421 A2 EP 2828421A2 EP 13711670 A EP13711670 A EP 13711670A EP 2828421 A2 EP2828421 A2 EP 2828421A2
Authority
EP
European Patent Office
Prior art keywords
aluminum
sic
och
conversion layer
rinsing
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.)
Granted
Application number
EP13711670.3A
Other languages
German (de)
English (en)
Other versions
EP2828421B1 (fr
Inventor
Rolf Danzebrink
Anne Danzebrink
Tanja GEYER
Markus 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.)
Nanogate Se
Original Assignee
Nanogate AG
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 Nanogate AG filed Critical Nanogate AG
Publication of EP2828421A2 publication Critical patent/EP2828421A2/fr
Application granted granted Critical
Publication of EP2828421B1 publication Critical patent/EP2828421B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/02—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition
    • C23C18/12—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material
    • C23C18/1204—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material inorganic material, e.g. non-oxide and non-metallic such as sulfides, nitrides based compounds
    • C23C18/122—Inorganic polymers, e.g. silanes, polysilazanes, polysiloxanes
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/02—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition
    • C23C18/12—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material
    • C23C18/1229—Composition of the substrate
    • C23C18/1245—Inorganic substrates other than metallic
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/02—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition
    • C23C18/12—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material
    • C23C18/125—Process of deposition of the inorganic material
    • C23C18/1254—Sol or sol-gel processing
    • 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
    • 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
    • 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
    • C25D11/16—Pretreatment, e.g. desmutting

Definitions

  • the invention relates to a process for the treatment of an anodized aluminum or aluminum alloy surface by means of a wet-chemical process, wherein the surface is pretreated from aluminum or aluminum alloy, anodized, rinsed and heat-densified.
  • Another object of the present invention is a corresponding aluminum surface, which is obtainable in particular by means of the erfindungsmä.
  • aluminum alloys are known to be produced by alloying aluminum with other metals, such as manganese, magnesium, copper, silicon, nickel, zinc and beryllium.
  • the starting material for the alloys is AI99.5 (pure aluminum) in most cases.
  • EP 1 407 935 A1 and the associated patent family describes a method for applying a thin-ceramic coating material to a surface of a motor vehicle attachment which is to be coated, consisting of aluminum, wherein the Aluminum is anodized before coating, and by the anodizing a roughness of the surface to be coated for adherence of the coating material is achieved. Then, the thin-ceramic coating material composed of exclusively inorganic constituents is applied by means of an electrostatic application method or by means of a wet-chemical application method with a virtually constant layer thickness as a coating with a nonporous and closed surface.
  • This technical teaching is based on the object to improve the quality of known thin-ceramic coatings.
  • a method is to be specified, which allows a cost-effective production of high-quality thin-ceramic coatings.
  • parts or objects are to be created, which have a high quality thin-ceramic coating and are inexpensive to produce. It is also essential that the thin-ceramic coating consists exclusively of inorganic constituents. The description of the method ends with the application of the coating on the aluminum surface.
  • WO 2009/068168 A1 and the associated patent family describes a component made of aluminum and / or an aluminum alloy, in particular a decorative or functional part, with a very high corrosion resistance and a method for its production.
  • the conversion layer should be compressed in the course of at least 3 min / ⁇ layer thickness.
  • the high corrosion resistance, especially a high alkali resistance should be achieved in that the surface of the component has a uniformly generated by anodization oxide layer and the porous oxide layer occluding and uniformly covering cover layer.
  • the cover layer is thereby produced by an oxide layer hydrate compound closing the pores of the oxide layer and by an additional incorporation of vitreous substances and a simultaneous buildup of same on the oxide layer.
  • the topcoat may also comprise exclusively aluminum oxides and / or aluminum hydrates and / or alumina hydrates and / or alkali silicates and / or aluminosilicates.
  • WO 2011/020556 A2 and the associated patent family likewise describe a shaped and / or structured part made of aluminum or an aluminum alloy and a method for protecting the surface thereof.
  • a sol-gel system corrosion protection layer which is to be produced in an optimized, that is shortened process sequence by an integrated curing or drying.
  • EP 2 328 183 A1 and the associated patent family is dispensed with an anodized layer.
  • a first side of the metal foil for arranging a photovoltaic absorber layer is provided.
  • a protective layer of a silicon-based sol-gel varnish arranged.
  • EP 1 306 467 A1 describes an aluminum plate coated with a thermoplastic resin, the aluminum plate carrying a low-porous (semi-non-porous) conversion layer by means of a pretreatment.
  • the term "semi-non-porous" layer is characterized in that the ratio (called porosity) of the vacant areas of the pores present in the conversion layer on the surface of the aluminum plate to the total area of the anodized Films is 30% or less. If the porosity is 5% or less, then the film is considered to be practically non-porous.
  • the thickness of this layer may be in the range of 50 to 3000 ⁇ (5 to 300 nm).
  • the conversion layer is coated according to [0031] with a polymer containing silicon. This polymer has corresponding thermoplastic properties and is prepared from various silanes or siloxanes as a precursor.
  • JP 06316787 A describes the anodization of an aluminum surface by immersion in a water-containing alcoholic HCL solution containing a small amount ( ⁇ 2% by weight) of an alkoxysilane. In this case, a fully compressed conversion layer is obtained.
  • JP 60-179475 A describes the formation of a conversion layer on aluminum surfaces by using an inorganic paint containing an organosilicone high-condensate but which does not have silanol groups. This is applied to a conventionally anodized aluminum surface.
  • EP 1 780 313 A2 relates to an article comprising a substrate having an aluminum or aluminum alloy surface, a sealing anodic coating disposed on at least a portion of the substrate and a layer of a silicone-containing polymer disposed on the anodic sealing layer , According to the description, the coating takes place directly with the polymer or even with an aqueous solution of a silane without carrying out a cold or heat seal directly after the preparation of the conversion layer. So this is also shown in the embodiment 1.
  • MIL-A-8625F the military Specification of the US Department of Defense
  • the applied polymer coating should be dried at a temperature in the range of 10 to 100 ° C.
  • the object of the present invention is to provide a further process for the production of components made of aluminum or an aluminum alloy with improved corrosion resistance, which in particular achieve an alkali resistance up to pH values of 13.5, without the other positive properties of an anodized surface, such as For example, their corrosion resistance to salt and acid pollution, their weathering and scratch resistance, are negatively affected.
  • the solution of the aforementioned object consists in a substantial process step of the hot compression of an anodized aluminum or aluminum alloy surface.
  • a conventional anodization method of pretreatment anodic oxidation and rinsing
  • the anodized surface is only partially hot-compacted, so that a high porosity of the surface is maintained.
  • this surface is brought into contact with a material containing organosilicon network former, and then cured at a temperature of up to 250 ° C. Too high a temperature of the curing may cause discoloration or detachment of the aluminum surface, which is not accepted by the purchaser of the component with the aluminum or aluminum alloy.
  • the invention in a first embodiment, a method for treating an anodized aluminum or aluminum alloy surface by means of a wet chemical method, wherein a surface of aluminum or an aluminum alloy pretreated, anodized, rinsed and hot densified, the
  • one carries out a partial hot compression in water at a temperature of up to 100 ° C in the course of up to 30S / MITI layer thickness of the conversion layer, then bringing a silicon organic network former material containing the partially hot-bonded surface in contact and then at a temperature of up to 250 ° C hardens.
  • Components produced according to the invention were subjected to a salt spray test in accordance with DIN EN ISO 9227. This is a 480 h salt spray test (NSS) according to DIN EN ISO 9227 NSS and a 48 h CASS test according to DIN EN ISO 9227 CASS.
  • NSS salt spray test
  • the requirement for the component is that no optical change to the delivery condition must be recognizable, also no detachment of the protective layer and no corrosion on the A-visible surface and B-visible surface of the component is accepted.
  • the components obtainable according to the invention had no optical change, in particular no whitening, compared to the delivery condition.
  • components produced according to the invention had a sterilization process of at least 500 cycles, which is customary in medical technology.
  • the component was first cleaned with water at 40 to 60 ° C for at least 5 minutes.
  • Suitable cleaners may also be suitable pH-neutral or alkaline products, for example pH ⁇ 11.5.
  • the sterilization was then performed with moist heat with fractionated vacuum (steam sterilization, DIN EN ISO 17665-1) at 134 ° C, a pressure of 3 bar, a holding period of at least 5 Minutes and a drying time of at least 15 minutes per cycle.
  • anodized components in particular decorative parts on delivery are free of polishing defects, scratches, damage or similar defects that may affect the appearance of the components, in particular decorative parts.
  • the surface of the component must not show any matting, cloudiness, optical changes (for example, blue blaze), cracking or shadow-like areas, even in use.
  • the components are preferably, as is customary in the prior art, initially degreased, electrically pre-glazed and deoxidized before the usual anodization process, for example in sulfuric acid is carried out with direct current or alternating current. Naturally, the aluminum component is rinsed or splash-rinsed between the respective steps.
  • the cold compacting is, for example, in a bath of demineralized water with the addition of a Metallfluorids, such as nickel fluoride and / or sodium fluoride containing Verdichtungsmitteis at a temperature above room temperature (25 ° C), for example at 28 ° C to 32 ° C and a slightly acidic to neutral pH, for example, from 6.0 to 7.0 for a few minutes, for example, carried out by at least 4 minutes, as described in WO 2009/068168 AI.
  • a Metallfluorids such as nickel fluoride and / or sodium fluoride containing Verdichtungsmitteis
  • a slightly acidic to neutral pH for example, from 6.0 to 7.0 for a few minutes, for example, carried out by at least 4 minutes, as described in WO 2009/068168 AI.
  • the method according to the invention can also be carried out without this cold compacting step, so that both variants are equally preferred.
  • the hot compression is used.
  • Page 580 of the Aluminum Handbook describes that the conventional densification by hydration of the oxide layer is as old as the process of anodic oxidation itself.
  • the oxide layer produced is preferably a hot water treatment in demineralised water with a pH of 6 +/- 0 , 5 at over 96 ° C or a treatment with saturated steam over 98 ° C subjected.
  • the treatment time is then usually at 3 to 4 min / ⁇ layer thickness.
  • the oxide layer is superficially dissolved during the compression process. Any adsorbed anions from the anodizing bath go into solution.
  • As the pH increases aluminum hydroxide gel precipitates on the surface which crystallizes. Thereby a transformation of the oxide into boehmite takes place.
  • this process step of hot compression is of particular importance. Again, preferably in the above-mentioned temperature window is hot-compacted, but according to the invention a significantly shorter compression time is realized.
  • the pretreatment of the process according to the invention comprises, in particular, degreasing, rinsing, pickling, rinsing, glazing, rinsing, acid treatment and rinsing before the actual anodic oxidation.
  • the organosilicon-network-forming material is then contacted with the anodized surface. This can be done for example by flooding, dipping, spraying, rolling, doctoring and / or rolling. In this case, it is also possible to electrostatically charge the material and / or the substrate before and / or during the contacting.
  • a material containing an organosilicon network former is used.
  • fluorinated silanes in particular CF 3 CH 2 CH 2 SiY3, C 2 F 5 CH 2 CH 2 SiY 3, C 4 F 9 CH 2 CH 2 SiY 3, nC 6 Fi 3 CH 2 CH 2 SiY3, nC 8 Fi 7 CH 2 CH 2 SiY 3, n-Ci 0 F 2 iCH 2 CH 2 SiY 3 , wherein Y is OCH 3 and / or OC 2 H 5 , can be used.
  • the material defined here is preferably solvent-free, in particular solvent-free.
  • the material may also contain solvents or dispersants.
  • the aforementioned silanes are crosslinked according to the invention on the partially compressed conversion layer by the sol-gel process. This material has no thermoplastic properties during and after the sol-gel process, even if the sol-gel process was started before contacting.
  • the curing of the organosilicon network former material is carried out at a temperature protecting the aluminum in the range of 120 to 250 ° C, in particular up to 200 ° C.
  • the sol-gel process causes an excellent curing, which causes the above properties, although the coating is extremely thin and has only a layer thickness in the nanometer range but also up to a few microns. Due to the incomplete pore closure, the uncured material penetrates into the conversion layer and also combines chemically with it. In this process step, the conversion layer is further compressed.
  • the anodically produced conversion layer itself, whose layer thickness is preferably from 5 to 15 ⁇ m, in particular from 7 to 10 ⁇ m. Due to the extraordinary small thickness of the cured organosilicon network forming material on and in the surface of the conversion layer contains this Al-O-Si bonded Si organofunctional silicates. Thus, the above-mentioned material is chemically bonded in and with the conversion layer and thus leads to an extremely high adhesive strength thereof, which naturally has no thermoplastic properties.
  • aluminum surface in the sense of the present invention comprises any aluminum substrates, for example the alloys described in EP 1 780 313 A2 in [0009] in addition to the pure metal.
  • the aluminum surfaces obtainable according to the invention may naturally have a colorless and / or colored surface. In the event that the surface should be colored, this can be integrated into the anodization process or the coating process according to the method customary in the prior art.
  • the anodically oxidized surfaces obtainable according to the invention can be found in a variety of forms, for example in the form of facades, window frames, door frames, fittings and decorative moldings in construction, in vehicle construction and in the furniture industry, rims, household appliances, signs, lighting elements, furniture components, machine elements, handles, construction parts , Brackets or engine components and heat exchangers, for example for air conditioning systems in vehicles or buildings.
  • the components according to the invention can be used. These components meet the manufacturer's specifications, if they are treated for example with ozone, steam or hydrogen peroxide.
  • this partially densified component in a composition of 58.80 g tetraethoxy orthosilicate, 24.90 g of [3- (2,3-epoxypropoxy) propyl] trimethoxysilane, 25, 17 g of demineralized water and 2.13 g of 32 percent hydrochloric acid, which with a Was diluted mixture of 184.53g 2-propanol and 3.72 g of deionized water, immersed and pulled out so slowly that when pulling out a visible wet film remained visible on the component. After a flash-off time of 10 minutes, the mixture was heated for one hour at 200 ° C. in a circulating-air oven and the silicate-mixed anodized layer was finally compacted or hardened. The total layer thickness of the conversion layer including the silicate layer was about 8.5 ⁇ .
  • Embodiment 2 An aluminum component of Al 99.85 MgSi anodized according to the state of the art (aluminum paperback loc cit.) With a 7.5 ⁇ m thick conversion layer was partially compressed for 3 minutes (24 seconds / ⁇ m conversion layer) in> 96 ° C hot water. After rinsing and drying, the component was stored for a further 24 hours under standard laboratory atmosphere.
  • this partially densified component was blended in a composition of 58.80 g of tetraethoxyorthosilicate, 24.90 g of [3- (2,3-epoxypropoxy) propyl] trimethoxysilane, 25.17 g of deionized water and 2.13 g of 32 percent hydrochloric acid containing a mixture from 184.53 g of 2-propanol and 3.72 g of deionized water, dipped and pulled out so slowly that a visible wet film remained on the component when pulled out. After a flash-off time of 10 minutes, the mixture was heated for one hour at 200 ° C. in a circulating-air oven and the silicate-mixed anodized layer was finally compacted or hardened. The total layer thickness of the conversion layer including the silicate layer was about 8.5 ⁇ .
  • a component treated according to embodiment 1 or 2 passed the following test:
  • the test was carried out at a temperature of 23 ° C. The following tests were carried out successively on the same component in the stated order.
  • pH 13.5 Buffer solution of 12.7 g of sodium hydroxide, 4.64 g of sodium phosphate dodecahydrate (equivalent to 2 g of sodium phosphate), 0.33 g of sodium chloride (equivalent to 200 mg of chloride) dissolved in 1 liter of water.
  • this compacted member was blended in a composition of 58.80 g of tetraethoxyorthosilicate, 24.90 g of [3- (2,3-epoxypropoxy) propyl] trimethoxysilane, 25.17 g of deionized water and 2.13 g of 32 percent hydrochloric acid mixed with a mixture from 184.53 g of 2-propanol and 3.72 g of deionized water, dipped and pulled out so slowly that a visible wet film remained on the component when pulled out. After a flash-off time of 10 minutes was heated in a convection oven for one hour at 200 ° C and the silicate staggered anodized hardened. The total layer thickness of the conversion layer including the silicate layer was about 8.5 ⁇ .
  • a component treated in this way did not pass the test according to the exemplary embodiments. There was a visual change from the original state. The component turned white.
  • this compacted member was blended in a composition of 58.80 g of tetraethoxyorthosilicate, 24.90 g of [3- (2,3-epoxypropoxy) propyl] trimethoxysilane, 25.17 g of deionized water and 2.13 g of 32 percent hydrochloric acid mixed with a mixture from 184.53 g of 2-propanol and 3.72 g of deionized water, dipped and pulled out so slowly that a visible wet film remained on the component when pulled out. After a flash-off time of 10 minutes was heated in a convection oven for one hour at 200 ° C and the silicate staggered anodized hardened. The total layer thickness of the conversion layer including the silicate layer was about 8.5 ⁇ . A component treated in this way did not pass the test according to the exemplary embodiments. There was a visual change from the original state. The component turned white.
  • this component was prepared in a composition of 58.80 g tetraethoxy orthosilicate, 24.90 g [3- (2,3-)
  • Epoxypropoxy) propyl] trimethoxysilane 25.17g of deionized water and 2.13g of 32% hydrochloric acid diluted with a mixture of 4019g of 2-propanol and 82g of deionized water were dipped in and pulled out so slowly that when pulled out a visible Wet film remained visible on the component. After a flash-off time of 10 minutes, the mixture was heated for one hour at 200 ° C. in a circulating-air oven and the silicate-mixed anodized layer was finally compacted or hardened. The total layer thickness of the conversion layer including the silicate layer was less than 8.5 ⁇ and corresponded substantially to the original layer thickness.
  • a component treated in this way did not pass the test according to exemplary embodiments 1 and 2. It was a visual change to recognize the original state. The component turned white.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Electrochemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Laminated Bodies (AREA)

Abstract

L'invention concerne un procédé de traitement par un procédé chimique par voie humide d'une surface oxydée par oxydation anodique constituée d'aluminium ou d'un alliage d'aluminium. Selon ledit procédé, la surface constituée d'aluminium ou d'un alliage d'aluminium est soumise à un prétraitement, est oxydée par oxydation anodique, est lavée et partiellement comprimée à chaud. La présente invention concerne par ailleurs une surface en aluminium correspondante, qui est en particulier obtenue au moyen du procédé selon l'invention.
EP13711670.3A 2012-03-22 2013-03-21 Traitement d'une surface oxydée par oxydation anodique Active EP2828421B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012204636A DE102012204636A1 (de) 2012-03-22 2012-03-22 Behandlung einer anodisch oxidierten Oberfläche
PCT/EP2013/055913 WO2013139899A2 (fr) 2012-03-22 2013-03-21 Traitement d'une surface oxydée par oxydation anodique

Publications (2)

Publication Number Publication Date
EP2828421A2 true EP2828421A2 (fr) 2015-01-28
EP2828421B1 EP2828421B1 (fr) 2024-06-19

Family

ID=47988969

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13711670.3A Active EP2828421B1 (fr) 2012-03-22 2013-03-21 Traitement d'une surface oxydée par oxydation anodique

Country Status (5)

Country Link
US (1) US10385470B2 (fr)
EP (1) EP2828421B1 (fr)
CN (1) CN104160070B (fr)
DE (1) DE102012204636A1 (fr)
WO (1) WO2013139899A2 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014056944A1 (fr) * 2012-10-08 2014-04-17 Süddeutsche Aluminium Manufaktur GmbH Procédé de production d'un revêtement sol-gel sur une surface à revêtir d'un composant et composant correspondant
FR3014910B1 (fr) * 2013-12-18 2017-06-23 Turbomeca Procede de traitement anti-corrosion et anti-usure
JP5724021B1 (ja) * 2014-06-25 2015-05-27 アイシン軽金属株式会社 高耐アルカリ性アルミニウム部材及びその製造方法
EP3023522A1 (fr) 2014-11-21 2016-05-25 AGC Glass Europe Traitement d'aluminium et alliages anodisés
CN104630862A (zh) * 2015-01-29 2015-05-20 湖州市织里新飞铝业有限公司 一种防摔的铝合金
DE102015111440B4 (de) 2015-07-15 2023-07-13 Plasman Europe Ab Verfahren zur Behandlung einer anodisch oxidierten Oberfläche aus Aluminium oder einer Aluminiumlegierung und beschichtete Aluminiumoberfläche, die aus einem derartigen Verfahren erhalten wird
CN105463549B (zh) * 2015-12-03 2018-06-26 中国航空工业集团公司北京航空材料研究院 一种提高铝及铝合金防护性能的阳极化方法
CN108102440A (zh) * 2017-12-06 2018-06-01 安徽金达节能材料发展有限公司 一种铝合金门窗涂料
US11312107B2 (en) * 2018-09-27 2022-04-26 Apple Inc. Plugging anodic oxides for increased corrosion resistance
IT202000020590A1 (it) 2020-08-28 2022-02-28 Ossidazione Anodica S R L Strati anodizzati resistenti agli acidi ed agli alcali
CN113652726A (zh) * 2021-07-30 2021-11-16 北京曙光航空电气有限责任公司 防止铝件阳极化黑色膜高温变色的封闭液、制备及使用方法
CN114540902B (zh) * 2022-02-14 2023-05-09 河南开瑞铝业有限公司 一种用于铝卷的表面处理装置及其处理方法
CN114807806B (zh) * 2022-06-13 2023-03-17 常州市嘉瑞化工有限公司 一种三氟氯乙烯包装碳钢瓶的表面钝化工艺

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3450606A (en) * 1966-03-17 1969-06-17 Reynolds Metals Co Multi-colored aluminum anodizing process
EP0005919B1 (fr) * 1978-05-22 1981-08-05 Alcan Research And Development Limited Procédé de colmatage d'aluminium anodisé et produit ainsi obtenu
JPS60179475A (ja) * 1984-02-24 1985-09-13 Kansai Paint Co Ltd アルミニウム基材の塗装仕上げ方法
JPH06316787A (ja) * 1993-04-28 1994-11-15 Kojundo Chem Lab Co Ltd アルマイトの表面処理法
DE19524828A1 (de) * 1995-07-07 1997-01-09 Henkel Kgaa Verfahren zum schwermetallfreien Verdichten anodisierter Metalle mit Lithium- und Fluorid-haltigen Lösungen
DE19621818A1 (de) * 1996-05-31 1997-12-04 Henkel Kgaa Kurzzeit-Heißverdichtung anodisierter Metalloberflächen mit tensidhaltigen Lösungen
US6811893B2 (en) * 2000-07-31 2004-11-02 Mitsubishi Plastics, Inc. Aluminum plate with thermoplastic resin coating and formed article comprising the same
JP3682575B2 (ja) 2000-09-05 2005-08-10 日本軽金属株式会社 塗膜硬度、塗膜密着性及び耐衝撃性に優れた表面処理アルミニウム材
DE20215854U1 (de) 2002-10-10 2002-12-19 Süddeutsche Aluminium Manufaktur GmbH, 89558 Böhmenkirch Kraftfahrzeug-Anbauteil
WO2005035829A1 (fr) * 2003-10-14 2005-04-21 Nippon Light Metal Company, Ltd., Materiau conducteur en aluminium resistant a la corrosion et procede de production de ce materiau
JP4603402B2 (ja) * 2005-03-31 2010-12-22 富士フイルム株式会社 微細構造体およびその製造方法
US7527872B2 (en) * 2005-10-25 2009-05-05 Goodrich Corporation Treated aluminum article and method for making same
WO2007064597A2 (fr) * 2005-11-28 2007-06-07 Pacific Biosciences Of California, Inc. Surfaces uniformes destinees a des substrats de materiau hybride, leurs procedes de production et d'utilisation
DE102007057777B4 (de) 2007-11-30 2012-03-15 Erbslöh Ag Verfahren zur Herstellung eines Bauteils aus Aluminium und/oder einer Aluminiumlegierung sowie Verwendung des Verfahrens
JP5265181B2 (ja) * 2007-12-06 2013-08-14 株式会社アルバック 保護膜製造方法
US8900716B2 (en) * 2008-02-11 2014-12-02 Lorin Industries, Inc. Antimicrobial anodized aluminum and related method
JPWO2011001862A1 (ja) * 2009-06-30 2012-12-13 関西ペイント株式会社 皮膜を有するステンレス鋼部材の製造方法
DE102009037928A1 (de) 2009-08-19 2011-02-24 Alcan Technology & Management Ltd. Form- und/oder Strukturteil aus Aluminium oder einer Aluminiumlegierung und Verfahren zu deren Oberflächenschutz
EP2328183A1 (fr) 2009-11-26 2011-06-01 Engineered Products Switzerland AG Substrat doté d'une feuille de métal destinée à la fabrication de cellules photovoltaïques
JP6283240B2 (ja) * 2013-05-23 2018-02-21 株式会社神戸製鋼所 アルミニウム合金板、接合体及び自動車用部材

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
MINFORD J D ED - MINFORD J D: "Passage, Handbook of Aluminum Bonding Technology and Data", 1 January 1993, HANDBOOK OF ALUMINUM BONDING TECHNOLOGY AND DATA, DEKKER, US, PAGE(S) 31, ISBN: 978-0-8247-8817-9, XP009518917 *
See also references of WO2013139899A2 *

Also Published As

Publication number Publication date
EP2828421B1 (fr) 2024-06-19
US20150034487A1 (en) 2015-02-05
DE102012204636A1 (de) 2013-09-26
CN104160070A (zh) 2014-11-19
US10385470B2 (en) 2019-08-20
WO2013139899A3 (fr) 2014-06-26
WO2013139899A2 (fr) 2013-09-26
CN104160070B (zh) 2018-04-10

Similar Documents

Publication Publication Date Title
EP2828421B1 (fr) Traitement d'une surface oxydée par oxydation anodique
DE102007057777B4 (de) Verfahren zur Herstellung eines Bauteils aus Aluminium und/oder einer Aluminiumlegierung sowie Verwendung des Verfahrens
EP1068372B1 (fr) Procede pour proteger un substrat metallique de la corrosion
DE10320779A1 (de) Korrosionsschutz auf Metallen
DE10320765A1 (de) Mittel zur Beschichtung von Metallen zum Schutz vor Korrosion
DE10153352A1 (de) Antiadhäsiv beschichtete Formwerkzeuge
DE112011104621T5 (de) Magnesuimlegierung mit dichter Oberflächentextur und ihr Oberflächenbehandlungsverfahren
EP3019644B1 (fr) Procédé de fabrication d'un substrat d'aluminium résistant à la corrosion et à l'usure
AU2019232811A1 (en) Silicate coatings
CN111020667B (zh) 一种阳极氧化膜预封孔的方法及封孔剂
EP1958008B1 (fr) Reflecteur munie d'une couche protectrice en vernis sol-gel
JP2002371381A (ja) 表面処理アルミニウム材及びその製造方法並びにアルミニウム成形体
EP1277851A1 (fr) Procédé de revêtement d'une surface d'un dispositif métallique passivée et un dispositif ainsi revêtu
EP2504862B1 (fr) Substrat doté d'une feuille de métal destinée à la fabrication de cellules photovoltaïques
EP1457266B1 (fr) Procédé de fabrication de pièces de tôle d'aluminium formées avec une surface décorative
JP4176581B2 (ja) 表面処理アルミニウム材及びアルミニウム成形体
DE102015111440B4 (de) Verfahren zur Behandlung einer anodisch oxidierten Oberfläche aus Aluminium oder einer Aluminiumlegierung und beschichtete Aluminiumoberfläche, die aus einem derartigen Verfahren erhalten wird
WO2006027007A1 (fr) Procede pour façonner des toles d'aluminium dotees d'une surface de decoration
DE10210849B4 (de) Verwendung eines Stoffes und ein Verfahren zur Beschichtung von Oberflächen von Körpern sowie Seltene-Erden-Magnetkörper mit einer entsprechenden Beschichtung
DE10163743A1 (de) Beschichteter Gegenstand aus Stahl
WO2017021387A1 (fr) Revêtement sol-gel adhérent et résistant à l'abrasion appliqué sur l'aluminium et procédé de production d'un tel revêtement
DE102017105116A1 (de) Beschichtungssystem und verfahren zur formung eines ver-festigten films auf einem aluminiumsubstrat
KR20070062990A (ko) 장식적 표면을 가지는 성형된 알루미늄 금속 부재의 제조방법
DE10158865A1 (de) Verfahren zur Beschichtung von Oberflächen

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20140827

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20171205

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: NANOGATE SE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

RIC1 Information provided on ipc code assigned before grant

Ipc: C23C 18/12 20060101ALI20230907BHEP

Ipc: C25D 11/16 20060101ALI20230907BHEP

Ipc: C25D 11/24 20060101AFI20230907BHEP

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20231023

GRAJ Information related to disapproval of communication of intention to grant by the applicant or resumption of examination proceedings by the epo deleted

Free format text: ORIGINAL CODE: EPIDOSDIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

INTC Intention to grant announced (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20240118

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502013016527

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240619

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240619

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240619

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240920