EP1543180B1 - Procede d'enduction par electrolyse de materiaux avec de l'aluminium, du magnesium ou des alliages d'aluminium et de magnesium - Google Patents
Procede d'enduction par electrolyse de materiaux avec de l'aluminium, du magnesium ou des alliages d'aluminium et de magnesium Download PDFInfo
- Publication number
- EP1543180B1 EP1543180B1 EP03807748A EP03807748A EP1543180B1 EP 1543180 B1 EP1543180 B1 EP 1543180B1 EP 03807748 A EP03807748 A EP 03807748A EP 03807748 A EP03807748 A EP 03807748A EP 1543180 B1 EP1543180 B1 EP 1543180B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- alet
- electrolyte
- magnesium
- aluminum
- materials
- 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.)
- Expired - Lifetime
Links
- 239000000463 material Substances 0.000 title claims abstract description 71
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 55
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 48
- 239000011777 magnesium Substances 0.000 title claims abstract description 43
- 229910052749 magnesium Inorganic materials 0.000 title claims abstract description 42
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 37
- 239000011248 coating agent Substances 0.000 title claims abstract description 23
- 238000000576 coating method Methods 0.000 title claims abstract description 23
- 229910000838 Al alloy Inorganic materials 0.000 title abstract description 9
- 229910000861 Mg alloy Inorganic materials 0.000 title abstract description 9
- 239000004411 aluminium Substances 0.000 title abstract 4
- 239000003792 electrolyte Substances 0.000 claims description 55
- 239000011734 sodium Substances 0.000 claims description 26
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 24
- 239000000203 mixture Substances 0.000 claims description 13
- 229910045601 alloy Inorganic materials 0.000 claims description 9
- 239000000956 alloy Substances 0.000 claims description 9
- 229910052708 sodium Inorganic materials 0.000 claims description 4
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical group 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 claims description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical group [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 2
- 239000000010 aprotic solvent Substances 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims description 2
- 229910052700 potassium Chemical group 0.000 claims description 2
- 239000011591 potassium Chemical group 0.000 claims description 2
- 239000002904 solvent Substances 0.000 claims description 2
- VOITXYVAKOUIBA-UHFFFAOYSA-N triethylaluminium Chemical compound CC[Al](CC)CC VOITXYVAKOUIBA-UHFFFAOYSA-N 0.000 claims 6
- 125000004178 (C1-C4) alkyl group Chemical group 0.000 claims 1
- 239000008151 electrolyte solution Substances 0.000 abstract 2
- 239000010410 layer Substances 0.000 description 39
- 229910052751 metal Inorganic materials 0.000 description 14
- 239000002184 metal Substances 0.000 description 14
- 238000000151 deposition Methods 0.000 description 11
- 230000008021 deposition Effects 0.000 description 9
- 239000012535 impurity Substances 0.000 description 7
- 238000011109 contamination Methods 0.000 description 5
- 239000011261 inert gas Substances 0.000 description 5
- -1 aluminum halides Chemical class 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 229910052790 beryllium Inorganic materials 0.000 description 3
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000004070 electrodeposition Methods 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 238000005269 aluminizing Methods 0.000 description 2
- 239000010953 base metal Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- PUZPDOWCWNUUKD-UHFFFAOYSA-M sodium fluoride Chemical compound [F-].[Na+] PUZPDOWCWNUUKD-UHFFFAOYSA-M 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000007743 anodising Methods 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 239000010431 corundum Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000005486 organic electrolyte Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000011775 sodium fluoride Substances 0.000 description 1
- 235000013024 sodium fluoride Nutrition 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000005491 wire drawing Methods 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
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/42—Electroplating: Baths therefor from solutions of light metals
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/34—Pretreatment of metallic surfaces to be electroplated
- C25D5/42—Pretreatment of metallic surfaces to be electroplated of light metals
Definitions
- the present invention relates to a process for the electrolytic coating of materials with aluminum, magnesium or alloys of aluminum and magnesium, wherein the material is dipped into an electrolyte for pretreatment and is switched there anodically and immediately thereafter the electrolytic coating takes place in the same electrolyte.
- the quality of the deposited aluminum, magnesium or aluminum / magnesium coating is improved.
- the deposition of aluminum, magnesium or aluminum / magnesium alloys on materials that are made of base metals is a tried and tested means to protect these materials from corrosion. You will be provided at the same time with a decorative coating.
- the protective metal layer is deposited here predominantly galvanically on the material. In this case, it is advantageous if the aluminum, magnesium or aluminum / magnesium layer takes place on the material without the application of metallic intermediate layers between said metal layer and the material. If intermediate layers between the material and the surface layer of aluminum, magnesium or aluminum / magnesium alloy are applied, there is a risk of contact corrosion due to the applied intermediate layer. In addition, thermal problems may occur due to the different expansion coefficients of the surface layer and the intermediate layer.
- Electrolytes which have been well-known in the art include melt flow electrolytes such as electrolytes containing aluminum halides or aluminum alkyl complexes. All these electrolyte systems have in common that the material must be cleaned on its surface before coating. This is especially true for materials made of base metals which form an oxide layer, the problem that this oxide layer must be completely removed before the coating. If the surface of the materials is not completely cleaned, contaminants or residues of the oxide layer of the metal of which the material is made adversely affect the adhesion of the subsequently electrolytically applied metal layer. Furthermore, it is possible that at the points where impurities on the surface are present, no metal layer is applied, since the impurities are usually not electrically conductive and thus an electrolytic deposition is prevented at this point. This then inevitably leads to corrosion problems of the finished coated material at the point where the metal layer was not completely applied.
- DE-C3-22 60 191 describes a method for the preparation of materials made of electrically conductive materials.
- the last method step used for shaping the materials, in which a new blank surface is formed on the material is carried out in the absence of atmospheric oxygen and moisture in a suitable inert gas or inert liquid medium.
- a disadvantage of this method is that, in particular when using inert liquid medium, which covers the surface of the material and thus can be brought into the coating electrolyte, this subsequently contaminates or hydrolyzes the electrolyte.
- inert gas media shows in the industrial application the problem that an absolutely oxygen-free inert gas atmosphere is practically impossible to realize.
- the pretreatment of a material in a protective gas atmosphere is described.
- the oxide layer on the surface of the material may be removed by anodizing the material prior to depositing the aluminum layer in the electrolyte made from sodium fluoride and aluminum triethyl. Subsequently, a reversal of the current takes place, as well as a deposition of aluminum on the material.
- the disadvantage is that the electrolyte can only be used to deposit aluminum on materials.
- the deposition of magnesium or aluminum / magnesium layers is not possible because the presence of halide ions in the electrolyte in the anodic polarization would produce directly insoluble magnesium halide compounds which prevent deposition of magnesium or aluminum / magnesium on the material. The resulting magnesium halides would immediately prevent the flow of current in the electrolyte by blocking the electrodes.
- DE-AS-21 22 610 describes a process for the anodic pretreatment of light metals for the electrodeposition of aluminum.
- the components are cleaned by treating the light metal materials in a molten electrolyte, the materials being subjected to anodic loading.
- the light metal materials cleaned in this way are humidified, so that they are still contaminated with the molten electrolyte, and immersed in an aluminizing cell. In this case, it can not be ruled out that atmospheric oxygen still reaches the pretreated material and oxidizes it again on the surface. Further, contamination of the aluminizing electrolyte by the surface-treating electrolyte, which is a molten electrolyte, takes place.
- the material in the molten electrolyte which serves for the surface treatment by anodic oxidation of the material, also for the electrodeposition of aluminum on the Beryllium or aluminum material is used.
- the melt electrolyte described in DE-AS-21 22 610 is only suitable for pretreating beryllium or aluminum materials in order subsequently to coat them with aluminum in the same melt electrolyte.
- the molten electrolyte is not suitable for electroplating aluminum, magnesium or aluminum / magnesium layers on other materials.
- DE-A1-198 55 666 describes an electrolyte suitable for depositing aluminum / magnesium alloy layers.
- the disclosed aluminum-organic electrolyte contains K [AlEt 4 ] or Na [Et 3 Al-H-AlEt 3 ], as well as Na [AlEt 4 ], as well as trialkylaluminum.
- the electrolyte can be present as a toluene solution.
- the electrolytic deposition of aluminum / magnesium alloy layers from the described electrolyte is carried out using a soluble aluminum and a likewise soluble magnesium anode or using an aluminum / magnesium alloy anode. In the described method, the electrolyte composition is adjusted by pre-electrolysis so that the deposited layer has the desired aluminum / magnesium ratio.
- Mg [AlEt 4 ] 2 can also be added to the electrolyte.
- DE-A1-198 55 666 thus teaches that the ratio of aluminum and magnesium in the deposited aluminum / magnesium layer is very much dependent on the concentration ratio of magnesium and aluminum in the electrolyte.
- great care must be taken in the pretreatment of the materials to be coated, as contamination of the surface of the material by oxidation or other influences leads to reduced quality of the electrodeposited metal layer.
- the technical object of the present invention is to provide a method in which aluminum, magnesium or aluminum / magnesium layers can be applied to materials, wherein the quality of the metal coating is increased by an improved pretreatment of the material.
- a method is provided be, in which the materials to be coated are reliably and inexpensively freed from adhering oxide layers or other impurities, after the pretreatment of the materials, a renewed contamination or oxidation of the materials to be prevented.
- the technical object of the present invention is achieved by a process for the electrolytic coating of materials with aluminum, magnesium or alloys of aluminum and magnesium, wherein the material is immersed in the electrolyte for pretreatment, is anodically switched there and immediately thereafter the electrolytic coating in the same Electrolytes takes place, wherein the electrolyte bath organoaluminum compounds of the general formula M [(R 1 ) 3 Al- (H-Al (R 2 ) 2 ) n -R 3 ] (I) and Al (R 4 ) 3 (II) as the electrolyte and n is 0 or 1, M is sodium or potassium and R 1 , R 2 , R 3 , R 4 may be the same or different, wherein R 1 , R 2 , R 3 , R 4 are C 1 - to C 4 alkyl group and is used as a solvent for the electrolyte, a halogen-free, aprotic solvent.
- an electrolyte is used as a mixture of the complexes K [AlEt 4 ], Na [AlEt 4 ] and AlEt 3 are used.
- the molar ratio of the complexes to AlEt 3 is 1: 0.5 to 1: 3, with the ratio of 1: 2 being preferred.
- a mixture of 0.8 mol of K [AlEt 4 ], 0.2 mol of Na [AlEt 4 ], 2.0 mol of AlEt 3 in 3.3 mol of toluene can be used as the electrolyte.
- a mixture of Na [Et 3 Al-H-AlEt 3 ] and Na [AlEt 4 ] and AlEt 3 can be used as the electrolyte in the process according to the invention.
- the molar ratio of Na [Et 3 Al-H-AlEt 3 ] to Na [AlEt 4 ] is 4: 1 to 1: 1, with a ratio of 2: 1 being preferred. It is further preferred that the molar ratio of Na [AlEt 4 ] to AlEt 3 is 1: 2.
- the electrolyte used is a mixture of 1 mol of Na [Et 3 Al-H-AlEt 3 ], 0.5 mol of Na [AlEt 4 ] and 1 mol of AlEt 3 in 3 mol of toluene.
- the electrolytic coating of materials with magnesium, aluminum or aluminum / magnesium alloys is preferably carried out at a temperature of 80 to 105 ° C. A temperature of the plating bath of 91 to 100 ° C is preferred.
- the electrolytic deposition of aluminum, magnesium, or aluminum / magnesium layers on the materials is carried out using a soluble aluminum and a likewise soluble magnesium anode or using an aluminum / magnesium alloy anode. However, it is also possible to use only one aluminum or one magnesium anode.
- the anodic switching of the material for pretreatment can be carried out for a period of 1 to 20 minutes, with 5 to 15 minutes being preferred.
- the anodic loading of the materials necessary for the pretreatment is carried out with a current density of 0.2 to 2 A / dm 2 , preferably 0.5 to 1.5 A / dm 2 .
- any material can be used which is suitable for electrodeposition. It is preferred that the material consists of a metal and / or of a metal alloy and / or is a metallized, electrolyte-resistant material, which can be dissolved in the electrolyte by anodic circuit.
- the materials to be coated are preferably rack goods, bulk goods or endless products such as wire, square plates, screws or nuts.
- the method according to the invention is characterized in that impurities or oxide layers which adhere to the materials are safely removed. Surprisingly, no disadvantageous change of the electrolyte composition occurs here, which would prevent a high-quality deposition of aluminum, magnesium or aluminum / magnesium layers on the materials. Furthermore, the electrodeposited metal layers are firmly adhering and homogeneously applied to the material, since after cleaning a renewed contamination of the material is prevented. In addition to the quality advantages mentioned, cost optimization of the coating of molded parts with metal layers is additionally achieved by the above-mentioned method steps.
- Phase b) The dry part was introduced into an argon or nitrogen-flooded coating cell and immediately introduced into the coating electrolyte after a pre-rinse in toluene.
- the electrolyte used was a mixture of the complexes K [AlEt 4] , K [AlEt 4 ] and AlEt 3 dissolved in toluene.
- the counterelectrode used was an AlMg25 alloy plate.
- the product to be coated was first anodically poled and treated at a current density of 1 A / dm 2 for 5 minutes at an electrolyte temperature of 95 ° C. Then reversed without removing the part from the electrolyte and immediately for 45 minutes at a current density of 1 5 A / dm 2 coated.
- An AlMg alloy layer of about 14 ⁇ m thickness was deposited.
- the adhesion of the layer was tested by cross hatch test and heat shock test (1 h at 220 ° C and quenching in cold water). It was found that excellent adhesion of the deposited layer to the base material was present. No peeling or bubbles could be detected.
- a treated as a comparative sample was pretreated and coated as in Example 1, but without anodic polarity in advance.
- the layer could be peeled off in the crosshatch test as a film. In heat shock test, the layer showed bubbles.
- a magnesium die-cast part made of an AZ-91 alloy was blasted with corundum (grain size 0-50 ⁇ m) at 2 bar pressure. The part was then immediately placed in the inert gas atmosphere of the coating cell, pre-rinsed in toluene and immersed in the electrolyte bath as described in Example 1.
- the product to be coated was anodized for 10 minutes at a current density of 1 A / dm 2 . In this case, a layer of about 2 microns was removed on the product surface. It was then reversed and the part switched cathodically for 1 hour at 1.5 A / dm 2 .
- An AlMg layer with 23-25% Mg content and a layer thickness of approximately 18 ⁇ m was deposited.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electroplating Methods And Accessories (AREA)
Abstract
Claims (12)
- Procédé d'enduction par électrolyse de matériaux avec de l'aluminium, du magnésium ou des alliages d'aluminium et de magnésium, le matériau étant trempé dans un électrolyte pour le prétraitement, y est branché anodiquement, puis directement après, l'enduction par électrolyse se produit dans le même électrolyte, le bain d'électrolyse contenant comme électrolyte des alliages alumino-organiques des formules générales (I) et (II),
M [R1)3Al-(H-Al(R2)2)n-R3 ] (I)
Al(R4)3 (II)
n étant égal à 0 ou 1, M étant égal au sodium ou au potassium et R1, R2, R3, R4 pouvant être égaux ou différents, R1, R2, R3, R4 étant un groupe alkyle C1 à C4 et un solvant aprotique et exempt d'halogènes étant employé comme solvant pour l'électrolyte. - Procédé selon la revendication 1,
caractérisé en ce qu'un mélange des complexes K[AlEt4], Na[AlEt4] et AlEt3, est employé comme électrolyte. - Procédé selon la revendication 2,
caractérisé en ce que le rapport molaire des complexes à AlEt3 est de 1:0,5 à 1:3, de préférence 1:2. - Procédé selon la revendication 2 ou 3,
caractérisé en ce que 0 à 25 mol-%, de préférence 5 à 20 mol-% de Na[AlEt4], rapporté au mélange des complexes K[AlEt4] et Na [AlEt4] , est employé. - Procédé selon l'une ou plusieurs des revendications 1 à 4,
caractérisé en ce qu'un mélange de 0,8 mole K[AlEt4], de 0,2 mole Na[AlEt4], de 2 moles AlEt3 dans 3,3 moles de toluène est employé comme électrolyte. - Procédé selon la revendication 1,
caractérisé en ce qu'un mélange de Na[Et3Al-H-AlEt3] et de Na[AlEt4] et de AlEt3 est employé comme électrolyte. - Procédé selon la revendication 6,
caractérisé en ce que le rapport molaire de Na[Et3Al-H-AlEt3] à Na[AlEt4] est de 4:1 à 1:1, de préférence de 2:1. - Procédé selon la revendication 6 ou 7,
caractérisé en ce que le rapport molaire de Na[AlEt4] à AlEt3 est de 1:2. - Procédé selon l'une ou plusieurs des revendications 6 à 8,
caractérisé en ce qu'un mélange d'1 mole de Na[Et3Al-H-AlEt3] et d'1 mole d'AlEt3 dans 3 moles de toluène est employé comme électrolyte. - Procédé selon l'une ou plusieurs des revendications 1 à 9,
caractérisé en ce que l'enduction par électrolyse est réalisée à des températures de 80 à 105°C, de préférence de 91 à 100°C. - Procédé selon l'une ou plusieurs des revendications 1 à 10,
caractérisé en ce que le prétraitement est réalisé pour une laps de temps de 1 à 20 min., de préférence de 5 à 15 min. - Procédé selon l'une ou plusieurs des revendications 1 à 11,
caractérisé en ce que le prétraitement est réalisé à une charge anodique des matériaux avec une densité de courant de 0,2 à 2 A/dm2, de préférence de 0,5 à 1,5 A/dm2.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03807748A EP1543180B1 (fr) | 2002-09-25 | 2003-07-15 | Procede d'enduction par electrolyse de materiaux avec de l'aluminium, du magnesium ou des alliages d'aluminium et de magnesium |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02021402 | 2002-09-25 | ||
EP02021402A EP1403402A1 (fr) | 2002-09-25 | 2002-09-25 | Procédé pour la déposition electrolytique des materiaux avec aluminium, magnesium ou les alliages d'aluminium et magnesium |
EP03807748A EP1543180B1 (fr) | 2002-09-25 | 2003-07-15 | Procede d'enduction par electrolyse de materiaux avec de l'aluminium, du magnesium ou des alliages d'aluminium et de magnesium |
PCT/EP2003/007632 WO2004033762A1 (fr) | 2002-09-25 | 2003-07-15 | Procede d'enduction par electrolyse de materiaux avec de l'aluminium, du magnesium ou des alliages d'aluminium et de magnesium |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1543180A1 EP1543180A1 (fr) | 2005-06-22 |
EP1543180B1 true EP1543180B1 (fr) | 2006-05-31 |
Family
ID=31970302
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02021402A Withdrawn EP1403402A1 (fr) | 2002-09-25 | 2002-09-25 | Procédé pour la déposition electrolytique des materiaux avec aluminium, magnesium ou les alliages d'aluminium et magnesium |
EP03807748A Expired - Lifetime EP1543180B1 (fr) | 2002-09-25 | 2003-07-15 | Procede d'enduction par electrolyse de materiaux avec de l'aluminium, du magnesium ou des alliages d'aluminium et de magnesium |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02021402A Withdrawn EP1403402A1 (fr) | 2002-09-25 | 2002-09-25 | Procédé pour la déposition electrolytique des materiaux avec aluminium, magnesium ou les alliages d'aluminium et magnesium |
Country Status (7)
Country | Link |
---|---|
US (1) | US7468123B2 (fr) |
EP (2) | EP1403402A1 (fr) |
JP (1) | JP2006500476A (fr) |
CN (1) | CN1685087B (fr) |
AU (1) | AU2003250061A1 (fr) |
DE (1) | DE50303610D1 (fr) |
WO (1) | WO2004033762A1 (fr) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1524336A1 (fr) * | 2003-10-18 | 2005-04-20 | Aluminal Oberflächtentechnik GmbH & Co. KG | Pièces à usiner recouvertes d'un alliage aluminium-magnesium |
JP2016000838A (ja) * | 2012-10-15 | 2016-01-07 | 住友電気工業株式会社 | アルミニウム膜、アルミニウム膜形成体、及びアルミニウム膜の製造方法 |
CN104884666B9 (zh) | 2012-12-26 | 2017-09-22 | Posco公司 | 铝镁镀层钢板及其制造方法 |
TWI464276B (zh) * | 2013-06-19 | 2014-12-11 | China Steel Corp | 陽極用鋁鎂合金片及其製造方法 |
CN104674219A (zh) * | 2015-03-25 | 2015-06-03 | 东莞仁海科技股份有限公司 | 一种压铸件表面处理新工艺 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1212213B (de) * | 1964-02-29 | 1966-03-10 | Aluminium Walzwerke Singen | Verfahren zur Herstellung von stab- oder drahtfoermigen Elektroden fuer Elektrolytkondensatoren |
US3969195A (en) * | 1971-05-07 | 1976-07-13 | Siemens Aktiengesellschaft | Methods of coating and surface finishing articles made of metals and their alloys |
US4148204A (en) * | 1971-05-07 | 1979-04-10 | Siemens Aktiengesellschaft | Process of mechanically shaping metal articles |
DE19855666A1 (de) * | 1998-12-01 | 2000-06-08 | Studiengesellschaft Kohle Mbh | Aluminiumorganische Elektrolyte und Verfahren zur elektrolytischen Beschichtung mit Aluminium oder Aluminium-Magnesium Legierungen |
-
2002
- 2002-09-25 EP EP02021402A patent/EP1403402A1/fr not_active Withdrawn
-
2003
- 2003-07-15 DE DE50303610T patent/DE50303610D1/de not_active Expired - Lifetime
- 2003-07-15 US US10/528,125 patent/US7468123B2/en not_active Expired - Fee Related
- 2003-07-15 CN CN038230569A patent/CN1685087B/zh not_active Expired - Fee Related
- 2003-07-15 EP EP03807748A patent/EP1543180B1/fr not_active Expired - Lifetime
- 2003-07-15 AU AU2003250061A patent/AU2003250061A1/en not_active Abandoned
- 2003-07-15 WO PCT/EP2003/007632 patent/WO2004033762A1/fr active IP Right Grant
- 2003-07-15 JP JP2004542263A patent/JP2006500476A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
EP1403402A1 (fr) | 2004-03-31 |
US7468123B2 (en) | 2008-12-23 |
JP2006500476A (ja) | 2006-01-05 |
US20060137990A1 (en) | 2006-06-29 |
AU2003250061A1 (en) | 2004-05-04 |
CN1685087A (zh) | 2005-10-19 |
WO2004033762A1 (fr) | 2004-04-22 |
CN1685087B (zh) | 2010-12-29 |
DE50303610D1 (de) | 2006-07-06 |
EP1543180A1 (fr) | 2005-06-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE3048083C2 (de) | Verfahren zur chemischen Entfernung von Oxidschichten von Gegenständen aus Titan oder Titanlegierungen | |
DE102007057777B4 (de) | Verfahren zur Herstellung eines Bauteils aus Aluminium und/oder einer Aluminiumlegierung sowie Verwendung des Verfahrens | |
DE102005039614B4 (de) | Verfahren zur Anodisierung und dadurch hergestellte anodische Oxidschicht sowie ein Aluminium- oder Aluminiumlegierungs-Element | |
US6379523B1 (en) | Method of treating surface of aluminum blank | |
EP0050216B1 (fr) | Procédé pour l'oxydation anodique d'aluminium et son utilisation comme support pour planches d'imprimerie | |
DE1496937B2 (de) | Verfahren zum galvanischen abscheiden von aluminium aus aluminiumhalogenid enthaltenden salzschmelzbaedern auf metalloberflaechen | |
EP0090268B1 (fr) | Procédé d'anodisation de produits en aluminium et pièces aluminées | |
DE2845736C2 (fr) | ||
DE102008008055B3 (de) | Verfahren zum Aufbringen einer multifunktionellen Beschichtung auf Aluminiumteile und beschichtetes Werkstück | |
DE3706711A1 (de) | Verfahren zum reinigen von oberflaechen eines aluminiumgegenstandes | |
EP1543180B1 (fr) | Procede d'enduction par electrolyse de materiaux avec de l'aluminium, du magnesium ou des alliages d'aluminium et de magnesium | |
DE10297114B4 (de) | Verfahren zum Anodisieren von Magnesium und Elektrolytlösung | |
DE1671426A1 (de) | Elektrode und Verfahren zu ihrer Herstellung | |
DE3211782A1 (de) | Bad und verfahren zum anodisieren von aluminierten teilen | |
EP2180088B2 (fr) | Procédé de dépôt galvanique de couches en chrome dur | |
DE2512339A1 (de) | Verfahren zur erzeugung einer haftenden metallschicht auf einem gegenstand aus aluminium, magnesium oder einer legierung auf aluminium- und/oder magnesiumbasis | |
EP2045364A2 (fr) | Déposition galvanique de couches de métaux sur des surfaces en magnésium ou en alliages de magnésium | |
DE19751256C2 (de) | Aluminiumdruckgußteil mit einer Aluminiumoxid-Konversionsschicht und Verfahren zu seiner Herstellung | |
DE19533748A1 (de) | Aktivierungslösung zur Aktivierung von metallischen Werkstoffen und Verfahren zur Aktivierung von metallischen Werkstoffen | |
US3075894A (en) | Method of electroplating on aluminum surfaces | |
WO1993020264A1 (fr) | Procede de fabrication d'un materiau stratifie ou de pieces stratifiees pour palier lisse | |
DE1496937C (de) | Verfahren zum galvanischen Abscheiden von Aluminium aus Aluminiumhalogemd ent haltenden Salzschmelzbadern auf Metallober flachen | |
DE642876C (de) | Verfahren zur Elektrometallplattierung von Aluminium | |
DD218637A1 (de) | Verbund oxidische zwischenschicht/metallschicht auf aluminium und -legierungen | |
JPH0369996B2 (fr) |
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: 20050216 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL LT LV MK |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: 7C 25D 5/34 A Ipc: 7C 25D 5/42 B Ipc: 7C 25D 3/42 B |
|
DAX | Request for extension of the european patent (deleted) | ||
RBV | Designated contracting states (corrected) |
Designated state(s): DE FR GB |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE FR GB |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REF | Corresponds to: |
Ref document number: 50303610 Country of ref document: DE Date of ref document: 20060706 Kind code of ref document: P |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20060914 |
|
ET | Fr: translation filed | ||
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20070301 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: TP |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R082 Ref document number: 50303610 Country of ref document: DE Representative=s name: BOEHMERT & BOEHMERT ANWALTSPARTNERSCHAFT MBB -, DE |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 13 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 14 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 15 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 16 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20190724 Year of fee payment: 17 Ref country code: DE Payment date: 20190723 Year of fee payment: 17 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20190725 Year of fee payment: 17 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 50303610 Country of ref document: DE |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20200715 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20200731 Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20200715 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20210202 |