EP2271792A1 - Procédé pour compacter 'un composant en aluminium et/ou en alliage d'aluminium - Google Patents
Procédé pour compacter 'un composant en aluminium et/ou en alliage d'aluminiumInfo
- Publication number
- EP2271792A1 EP2271792A1 EP09741854A EP09741854A EP2271792A1 EP 2271792 A1 EP2271792 A1 EP 2271792A1 EP 09741854 A EP09741854 A EP 09741854A EP 09741854 A EP09741854 A EP 09741854A EP 2271792 A1 EP2271792 A1 EP 2271792A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hot water
- compression
- component
- aluminum
- bath
- 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- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 47
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 15
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 15
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 63
- 238000007906 compression Methods 0.000 claims abstract description 57
- 230000006835 compression Effects 0.000 claims abstract description 55
- 238000007743 anodising Methods 0.000 claims abstract description 11
- 238000007789 sealing Methods 0.000 claims description 25
- 230000008569 process Effects 0.000 claims description 21
- 238000005056 compaction Methods 0.000 claims description 16
- 239000000126 substance Substances 0.000 claims description 10
- 238000002048 anodisation reaction Methods 0.000 claims description 8
- 239000004094 surface-active agent Substances 0.000 claims description 6
- 239000003513 alkali Substances 0.000 claims description 5
- 239000004115 Sodium Silicate Substances 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 4
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 3
- 239000004111 Potassium silicate Substances 0.000 claims description 3
- 229910052910 alkali metal silicate Inorganic materials 0.000 claims description 3
- DBJLJFTWODWSOF-UHFFFAOYSA-L nickel(ii) fluoride Chemical compound F[Ni]F DBJLJFTWODWSOF-UHFFFAOYSA-L 0.000 claims description 3
- NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 claims description 3
- 229910052913 potassium silicate Inorganic materials 0.000 claims description 3
- 235000019353 potassium silicate Nutrition 0.000 claims description 3
- 230000000274 adsorptive effect Effects 0.000 claims description 2
- 239000007864 aqueous solution Substances 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims description 2
- 239000008367 deionised water Substances 0.000 claims description 2
- 229910021641 deionized water Inorganic materials 0.000 claims description 2
- 238000004043 dyeing Methods 0.000 claims description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 2
- 230000000052 comparative effect Effects 0.000 description 19
- 238000005260 corrosion Methods 0.000 description 12
- 230000007797 corrosion Effects 0.000 description 12
- 239000011148 porous material Substances 0.000 description 10
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 230000009467 reduction Effects 0.000 description 6
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 238000010306 acid treatment Methods 0.000 description 3
- 230000002378 acidificating effect Effects 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 238000009835 boiling Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 239000003112 inhibitor Substances 0.000 description 3
- 230000002829 reductive effect Effects 0.000 description 3
- 239000012085 test solution Substances 0.000 description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- 238000000280 densification Methods 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 150000004760 silicates Chemical class 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 229910001593 boehmite Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- WMWXXXSCZVGQAR-UHFFFAOYSA-N dialuminum;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3] WMWXXXSCZVGQAR-UHFFFAOYSA-N 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- FAHBNUUHRFUEAI-UHFFFAOYSA-M hydroxidooxidoaluminium Chemical compound O[Al]=O FAHBNUUHRFUEAI-UHFFFAOYSA-M 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 150000002815 nickel Chemical class 0.000 description 1
- AIYYMMQIMJOTBM-UHFFFAOYSA-L nickel(ii) acetate Chemical class [Ni+2].CC([O-])=O.CC([O-])=O AIYYMMQIMJOTBM-UHFFFAOYSA-L 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000001488 sodium phosphate Substances 0.000 description 1
- 229910000162 sodium phosphate Inorganic materials 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
- ASTWEMOBIXQPPV-UHFFFAOYSA-K trisodium;phosphate;dodecahydrate Chemical compound O.O.O.O.O.O.O.O.O.O.O.O.[Na+].[Na+].[Na+].[O-]P([O-])([O-])=O ASTWEMOBIXQPPV-UHFFFAOYSA-K 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
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 relates to a method for compacting a component made of aluminum and / or an aluminum alloy, in particular a trim or functional part, with a very high corrosion resistance.
- high-gloss, matt-gloss or silky-gloss trim parts which are made of aluminum sheets or Aluminiumprofile ⁇ .
- the decorative surfaces are made by polishing and gloss anodizing. These possibly also colored surfaces are optically demanding and fulfill a high quality standard. These are surfaces which, in contrast to painted surfaces, have a completely uniform layer thickness and have neither ripples nor edge structures or edge alignments. They feel metallic and therefore of high quality, one speaks of the so-called "cool-touch”. They also have a good corrosion resistance through a combination of cold and heat compression processes.
- European Patent Application EP 1 407 935 A1 discloses a process in which uncompressed glosseloxal surfaces are coated with a transparent "varnish" (Aluceram), ie the anodization process is followed by a varnishing process Ware before coating with these paints can not be transported and handled arbitrarily, since the capillary action of the open pores irreversible Dirt of the parts entails. Furthermore, only the visible sides are coated for procedural and cost reasons.
- the object of the invention is to provide a method for compacting components made of aluminum or an aluminum alloy with high compaction quality, in particular good corrosion resistance. Another task is to accelerate the compaction process, thus increasing plant capacity and reducing unit costs.
- the porous oxide layer obtained in the anodization which usually has a layer thickness of 2 to 30 microns, preferably a natural layer of 5 to 7 microns in the case of natural colored parts and a layer thickness of colored parts 12 to 15 microns, subjected to a known cold sealing step.
- sealing products with nickel fluoride are preferably added.
- a hot water compression is carried out.
- This new hot water compression takes place at elevated temperatures and under application of overpressure in a closed chamber.
- the temperatures l ying in a range above 100 0 C, preferably in a range above 100 ° C to 140 ° C.
- the elevated temperature serves to increase the reaction rate.
- the overpressure is preferably 1 bar to 2 bar.
- Overpressures of more than 2 bar have the disadvantage that the system engineering effort by the high-acting forces increased disproportionately. The optimum operating pressure must be determined depending on the chemicals, substrates and layer thicknesses used.
- the hot water compression can be carried out in different pH ranges.
- the pHs are in the range of 6.0 to 7.0.
- pH values in the basic range result in a silicate compaction because the dissolved silicates are basic.
- the compression bath contains deionized water.
- Known surfactants can be added.
- glassy substances of one or more such alkali metal silicates can additionally be introduced into the cover layer. These glassy substances are preferably introduced as an aqueous solution in concentrations of 5 to 20 g / l in the hot water sealing bath. In this case, the so compacted parts show in a test in an acidic medium with a pH of 1, 0 for 10 minutes and a subsequent test in one alkaline medium at a pH of 13.5 for 10 minutes no attack.
- the compression time is in a hot water compression according to the invention at 1 bar overpressure and temperatures of 12O 0 C per 1 micron layer thickness of the anodization between 0.5 to 3 min. Comparing this with the known hot water compression without pressure application, where the compaction time per 1 micron layer thickness of the anodization between 2 to 6 min, so the reduction of the compaction time is clear.
- the inventive hot water compression is carried out in place of a known hot water compression.
- the throughput times of components in an anodizing unit are reduced while at the same time the quality of the compaction is improved.
- the compaction layer achieved by the method according to the invention is gapless and extends to the bottom of the pores of the anodized layer.
- a very homogeneous sealing of the pores with alumina hydrate is achieved with the method according to the invention.
- Hot water condensing does not or does not always achieve this goal, among other things due to process-inherent residual amounts of chemicals, eg acids from the glazing bath, which can collect in the capillary bottoms of the pores and which are not displaced but rather trapped in the layer.
- the compression medium for example demineralized water or, when added with alkali silicates, also these are introduced into the pores in an improved manner by the pressure. Residual amounts of treatment substances deposited in the pores, which have not been removed by the various rinsing processes, are displaced or assimilated. Due to the possible increased process temperature above 100 ° C, the usual boiling point of the water at atmospheric pressure, the reaction rate and -completeness is also increased. Thus, the compression times of about 1 -3 min / microns can be achieved, which corresponds to a reduction of up to 50%. Comparative Example Ia:
- An aluminum sheet piece measuring 40 ⁇ 100 ⁇ 2 mm made of A199.9MgO, 8 alloy is mechanically polished and chemically pretreated in a known manner. Subsequently, during a DC sulfuric acid treatment, an anodically generated oxide layer is formed on this piece. The layer thickness is 7 ⁇ m. After rinsing the component A, the porous oxide layer is subjected to a cold sealing step. Temperature: 28-32 ° C pH: 6.2-7.0. Sealing time: 4-8 min
- Compression bath demineralized water
- Compression bath demineralized water
- Compression bath demineralized water
- An aluminum sheet piece measuring 40 ⁇ 100 ⁇ 2 mm made of A199.9MgO, 8 alloy is mechanically polished and chemically pretreated in a known manner. Subsequently, during a DC current Sulfuric acid treatment produced anodized oxide layer on this piece.
- the component B is additionally supplied to an electrolytic and adsorptive dyeing process. The layer thickness is 15 ⁇ m. After rinsing the component, the porous oxide layer is subjected to a cold sealing step as in Comparative Example 1.
- Compression bath demineralized water
- Embodiment 2 of the invention is a diagrammatic representation of Embodiment 2 of the invention.
- Compression bath demineralized water
- a piece of aluminum sheet measuring 40 ⁇ 100 ⁇ 2 mm made of A199,9MgO, 8 alloy is mechanically polished and chemically pretreated in a known manner. Subsequently, during a DC sulfuric acid treatment, an anodically generated oxide layer is formed on this piece. The layer thickness is 7 ⁇ m. After rinsing the component, the porous oxide layer is subjected to a cold sealing step as in Comparative Example 1.
- Compression bath demineralized water
- Embodiment 3 of the invention is a diagrammatic representation of Embodiment 3 of the invention.
- Compression bath demineralized water
- the porous ox id Mrs is compressed under pressure. Since water is known to have a higher boiling point under pressure than under normal conditions, the compression according to the invention can be carried out at temperatures of 100 ° C or higher, thereby increasing the reaction rate, whereby the reaction underlying the compaction proceeds faster and more complete.
- the applied pressure results in an improved and more homogeneous compression. Any residues of treatment media remaining in the pores of the anodization layer are better displaced and thus do not represent local microscopic compaction errors on the finished product, which are weak points in terms of corrosion resistance.
- the silicate Verdi rectification, the glassy substance added during the hot water compression is better introduced by the pressure and the temperature in the pores of the oxide layer and / or built up on the oxide layer.
- a l le components of both the comparative examples and the embodiments of the invention are stored at 100 ° C for 60 min. All components optically show no heat cracks.
- Assay for acid resistance and combined acid / heat / alkali loading All components are subjected to 5 cycles of the Kesternight test according to DIN 50018 KFW 2, OS. After that, no part has any visual changes.
- the components according to the invention have, in a test according to the standard TL 182 of Volkswagen AG, namely a treatment for 10 minutes in an acidic medium, which has a pH of 1, 0, a subsequent Cold storage and a 10 minute immersion in a pH 13.5 medium also showed no change.
- the test is also the compo le of Comparative Examples Ib and 3, but not if previously a Abriebtest was made.
- the alkaline test solution consists of a 0.317 molar solution, in which in 1 liter of solution
- the components of the invention and the components of Comparative Examples I b and 3 show after 10 minutes no or wegpolierbare changes.
- the anodized layer is not damaged at virtually unchanged layer thickness compared to the initial state.
- the component of Comparative Example Ia changes after 4 minutes and the component of Comparative Example 2 after 3-4 minutes.
- the transparent Compaction layer becomes cloudy, in some cases the anodized layer is completely removed after the entire test period of 10 minutes.
- Test for resistance to alkali after previous mechanical stress The components of Comparative Example 3 and Embodiments 1, 2 and 3 according to the invention are passed through a device according to Amtec- FCi, which represents a washing-road simulation. There are 10 double strokes on the surface of each component. Subsequently, the components are stored in the alkaline test solution described above with a measured pH of 13.5 at temperatures of 18-20 ° C for 10 min.
- the component of Comparative Example 3 and the components of the eiTindungswashen embodiments 1 and 3 show after 10 minutes a slight, by polishing almost completely reversible change.
- the component according to the embodiment 2 of the invention consists of the test at a pH of 12.5, whereas the comparative example 2, the test at a pH of 1 1, 5 consists.
- a l le components can be used as trim or functional parts, since they have ei ne heat-resistant and corrosion-resistant surface.
- the components treated in accordance with the invention show equally good or better properties than the components treated in comparison methods. The sometimes better properties in the components according to the invention are achieved due to the improved compression.
- the components treated according to the invention are obtained in a significantly shorter process time.
- trim parts having a high compression quality, in particular high corrosion resistance, and at the same time a shortened process time of the anodizing process are available.
- the invention is not limited to the process conditions described in the exemplary embodiment. These can be varied according to the purpose of the component.
- the layer thickness of the anodization layer of a trim part can be between 2 and 30 ⁇ m, whereby treatment times change.
- the improved compaction quality with reduced process time means that the capacity of an anodizing plant can be increased through faster throughput times of the components to be treated.
- the hot-water compacting step is usually the longest-lasting step in the overall process, so that a plurality of hot-water compacting tanks are provided in anodising plants constructed according to known methods. With a faster hot water compression according to the method of the invention, fewer hot water compacting tanks can be provided in an anodizing unit. In contrast, is the increased plant engineering effort for a compression under increased pressure and elevated temperature. The energy balance is favorable in the inventive method by the reduced throughput times despite the increased energy input.
Landscapes
- 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)
- Sealing Material Composition (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
L'invention concerne un procédé pour compacter un composant en aluminium et/ou en alliage d'aluminium, présentant sur sa surface, une couche d'oxyde produite uniformément par anodisation. Le procédé de compactage comprend un compactage en eau chaude du composant, dans un bain d'eau totalement déminéralisée, par application d'une surpression pendant une période d'au moins une minute. Par application d'une pression dans une chambre de compactage fermée, le processus de compactage est accéléré, et la capacité de l'installation d'anodisation est accrue.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102008023079A DE102008023079A1 (de) | 2008-05-09 | 2008-05-09 | Verfahren zum Verdichten eines Bauteils aus Aluminium und/oder einer Aluminiumlegierung |
| PCT/EP2009/003197 WO2009135635A1 (fr) | 2008-05-09 | 2009-05-05 | Procédé pour compacter 'un composant en aluminium et/ou en alliage d'aluminium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2271792A1 true EP2271792A1 (fr) | 2011-01-12 |
Family
ID=41137367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP09741854A Withdrawn EP2271792A1 (fr) | 2008-05-09 | 2009-05-05 | Procédé pour compacter 'un composant en aluminium et/ou en alliage d'aluminium |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20110114494A1 (fr) |
| EP (1) | EP2271792A1 (fr) |
| CA (1) | CA2722741A1 (fr) |
| DE (1) | DE102008023079A1 (fr) |
| WO (1) | WO2009135635A1 (fr) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104862762B (zh) * | 2015-04-27 | 2017-05-10 | 武汉菲尼克化学有限公司 | 铝或铝合金阳极氧化膜封孔处理方法 |
| FR3106838B1 (fr) * | 2020-01-31 | 2022-01-14 | Safran Aircraft Engines | Procede de colmatage des alliages d’aluminium |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3181461A (en) * | 1963-05-23 | 1965-05-04 | Howard A Fromson | Photographic plate |
| CH432173A (fr) * | 1964-05-22 | 1967-03-15 | Pedat Roger | Procédé de traitement de surfaces revêtues d'une couche d'oxyde d'aluminium et surfaces obtenues par ce procédé |
| DE1301189B (de) * | 1965-08-03 | 1969-08-14 | Langbein Pfanhauser Werke Ag | Verfahren zum Nachverdichten von durch anodische Oxydation erzeugten Oxidschichten auf Aluminium und Aluminiumlegierungen durch Dampfbehandlung |
| JPS51101741A (ja) * | 1975-03-06 | 1976-09-08 | Yoshida Kogyo Kk | Taishokuseiyokyokusankahimakunotosoho |
| US4031275A (en) * | 1975-12-22 | 1977-06-21 | Aluminum Company Of America | Low temperature vapor sealing of anodized aluminum |
| DE2812116C2 (de) * | 1977-03-30 | 1982-06-03 | Yoshida Kogyo K.K., Tokyo | Verfahren zum Aufbringen eines härtbaren Überzugs auf eine gedichtete anodische Oxidschicht auf Aluminium |
| US4098194A (en) * | 1977-06-01 | 1978-07-04 | The United States Of America As Represented By The Secretary Of The Army | Hypervelocity projectile with aluminum components of high resistance to thermodynamic ablation |
| EP1087038A1 (fr) * | 1999-09-23 | 2001-03-28 | Clariant International Ltd. | Procédé pour colorer des couches d'oxyde d'aluminium |
| WO2003066938A2 (fr) * | 2002-02-06 | 2003-08-14 | Ciba Specialty Chemicals Holding Inc. | Procede de coloration d'aluminium |
| DE20215854U1 (de) | 2002-10-10 | 2002-12-19 | Süddeutsche Aluminium Manufaktur GmbH, 89558 Böhmenkirch | Kraftfahrzeug-Anbauteil |
| DE102005051755A1 (de) * | 2005-10-27 | 2007-05-10 | Clariant International Limited | Verfahren zur Verbesserung der Korrosionsbeständigkeit und Lichtechtheit von gefärbten Aluminiumoxidschichten |
| US20080105203A1 (en) * | 2006-09-28 | 2008-05-08 | Tokyo Electron Limited | Component for substrate processing apparatus and method of forming film on the component |
| 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 |
-
2008
- 2008-05-09 DE DE102008023079A patent/DE102008023079A1/de not_active Withdrawn
-
2009
- 2009-05-05 WO PCT/EP2009/003197 patent/WO2009135635A1/fr not_active Ceased
- 2009-05-05 CA CA2722741A patent/CA2722741A1/fr not_active Abandoned
- 2009-05-05 EP EP09741854A patent/EP2271792A1/fr not_active Withdrawn
- 2009-05-05 US US12/736,830 patent/US20110114494A1/en not_active Abandoned
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2009135635A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102008023079A1 (de) | 2010-01-07 |
| WO2009135635A4 (fr) | 2010-01-07 |
| CA2722741A1 (fr) | 2009-11-12 |
| WO2009135635A1 (fr) | 2009-11-12 |
| US20110114494A1 (en) | 2011-05-19 |
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