Abstract: The invention relates to an electrolyte for the electrodeposition of aluminium from aprotic solvents containing a compound of the formula: N(R1)4X.(m-n-o)Al(C2H5)3.nAlR23oAlR33, wherein R1 is a C1 to C4 alkyl group, X is F, Cl or Br, m is equal to 1 to 3, preferably 1.7 to 2.3, n is equal to 0.0 to 1.5, preferably 0.0 to 0.6, o is equal to 0.0 to 1.5, preferably 0.0 to 0.6, R2, R3 is a C1 or C3 to C6 alkyl group, wherein R2 is unequal to R3, in an organic solvent. A further object of the invention is a method for producing the electrolyte, a method for coating and the coated material parts.
Type:
Application
Filed:
October 16, 2007
Publication date:
December 17, 2009
Applicant:
ALUMINAL OBERFLACHENTECHNIK GMBH & CO. KG
Abstract: The invention concerns a method for electrolytic coating of materials with aluminum, magnesium or aluminum and magnesium alloys. The method is characterized in that the material is pretreated by being immersed in an electrolytic solution, where it is anodized, the electrolytic coating being performed immediately after in the same electrolytic solution.
Type:
Grant
Filed:
July 15, 2003
Date of Patent:
December 23, 2008
Assignee:
Aluminal Oberflachentechnik GmbH & Co. KG
Inventors:
Jorg Heller, Hans De Vries, Matthias Hartel
Abstract: The invention relates to a coated workpiece comprising a substrate, a metallic layer applied to said substrate, and a layer containing a aluminum/magnesium alloy applied to the intermediate layer. The invention also relates to a method for producing this coated workpiece.
Type:
Application
Filed:
September 9, 2004
Publication date:
September 13, 2007
Applicant:
ALUMINAL OBERFLACHENTECHNIK GMBH & CO. KG
Inventors:
Hans de Vries, Matthias Hartel, Jorg Heller
Abstract: The invention relates to a method for producing electrolyte solutions consisting of trialkylaluminium AlR3, M1AlR4, M2AlR4 and an aromatic hydrocarbon. According to the invention, a mixture of M1OR and M2OR is reacted with trialkylaluminium AlR3 at temperatures below 25° C. in an aromatic hydrocarbon. M1AlR4/M2AlR4 is isolated from the obtained mixture and a ready-for-use electrolyte for the electrochemical deposition of aluminum-magnesium alloys is obtained by the addition of aromatic hydrocarbon.
Type:
Grant
Filed:
May 13, 2003
Date of Patent:
June 26, 2007
Assignee:
Aluminal Oberflachentechnik GmbH & Co. KG
Abstract: The invention concerns a method for electrolytic coating of materials with aluminum, magnesium or aluminum and magnesium alloys. Said method is characterized in that the material is pretreated by being immersed in an electrolytic solution, where it is anodized, the electrolytic coating being performed immediately after in the same electrolytic solution.
Type:
Application
Filed:
July 15, 2003
Publication date:
June 29, 2006
Applicant:
Aluminal Oberflachentechnik GmbH & Co., KG
Inventors:
Jorg Heller, Hans Vries, Matthias Hartel
Abstract: The invention relates to a method for producing electrolyte solutions consisting of trialkylaluminium AlR3, M1AlR4, M2AlR4 and an aromatic hydrocarbon. According to the invention, a mixture of M1OR and M2OR is reacted with trialkylaluminium AlR3 at temperatures below 25° C. in an aromatic hydrocarbon. M1AlR4/M2AlR4 is isolated from the obtained mixture and a ready-for-use electrolyte for the electrochemical deposition of aluminum-magnesium alloys is obtained by the addition of aromatic hydrocarbon.
Type:
Application
Filed:
May 13, 2003
Publication date:
December 8, 2005
Applicant:
Aluminal Oberflachentechnik GmbH & Co. KG
Abstract: The present invention is directed to processes and devices for performing the processes comprising electroplating one or more metallic or non-metallic continuous products with metals or metal alloys in a continuous process from aprotic electrolytes free of water and oxygen, wherein the continuous product is passed through a lock system (1) into an encapsulated coating plant under inert gas atmosphere, and the following steps are performed at temperatures ≦120° C.:
activating the continuous product to be coated;
rinsing the continuous product to be coated;
contacting the continuous product to be coated;
electroplating the continuous product to be coated using a metal or metal alloy;
drying the coated continuous product;
discharge of the coated continuous product from the plant through a lock system.
Abstract: The invention is directed to an electrolyte for the electrolytic high-speed deposition of aluminum on continuous products, containing an organometallic aluminum complex of formula (I)
MF.2Al(C3H7)3.nAlR3 (I),
wherein
M=K, Rb, Cs,
R=a C3 alkyl group or a mixture of a C3 and a C1-C2 alkyl group,
n=from 0.1 to 1,
in an aromatic or aliphatic hydrocarbon as solvent.