摘要:
There is disclosed an aluminum electroplating method, which compriss using a low melting composition comprising a mixture of 20 to 80 mole % of an aluminum halide and 80 to 20 mole % of an onium halide of a nitrogen-containing compound selected from the group consisting of bicyclic quaternary amidinium halides, 1-alkylaminopyridinium halides, trialkylimidazolium halides, benzimidazolium halides, alicyclic quaternary ammonium halides and asymmetric tetraalkylammonium halides.
摘要:
In order to avoid smoke formation within the cover hood for the plating tank in an assembly for the electro-deposit of aluminum and contamination of charging and discharge liquid locks leading to and from the cover hood, a liquid spray chamber and a cooled condensing zone are disposed beneath a slotted cover plate leading to the interior space of the cover hood and the open ends of the individual electrolyte cell. The substrate goods and goods carriers are sprayed and cooled leaving the electro-deposit cells prior to being passed back into the interior space of the cover hood.
摘要:
A device for electrodepositing aluminum from an aprotic, oxygen-free, water-free aluminum-organic electrolyte, which comprises an electroplating tank, which is subdivided into a plurality of identical individual cells for receiving an electrolyte and anode plates, which cells contain support racks and are positioned one after another in a line or row, and the tank has a hood forming a protective chamber which contains a protective atmosphere. To charge and discharge workpiece holders into and out of the device includes a charging lock at one end of the row of cells forming the tank, a discharging lock at the other end of the row and a conveyor in the tank.
摘要:
Electrolyte liquid for the electrodeposition of aluminium, containing lithium hydride and/or lithium aluminium hydride and at least one aluminium halide dissolved in tetrahydrofuran or halogen and/or methyl derivatives, the molar ratio between the Al-halide and the lithium aluminium hydride being in excess of 3. In addition, this bath contains an alkali metal aluminium chloride. This liquid is conspicuous for its high conductivity and its great stability.
摘要:
Electrolyte liquid for electrodepositing ductile aluminium. The liquid comprises, dissolved in an aprotic liquid, an alkali aluminium hydride and aluminum hydride coordinatively bound to a tertiary amine, a tertiary diamine or an arylphosphine.
摘要:
A method and bath for electrodepositing aluminum directly onto metal without the necessity of activation of the surface thereof wherein the bath is a mixture of anhydrous aluminum chloride at from 4.25 molar to saturation, an ether, such as ethyl ether, and a metal hydride, such as lithium aluminum hydride. Also an agent for improvement of the throwing power, such as ferric chloride, can be used.