Apparatus and method for the electrodepositing of aluminum
AssigneeSiemens Aktiengesellschaft
InventorsKlaus Stoger, Richard Dotzer, Johann Gehring
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Abstract
Apparatus for electrodepositing aluminum from aprotic, oxygen-free and water-free organo-aluminum electrolytes in which a heatable treatment tank is closed off in an airtight manner and contains a rotatable electroplating drum with a first heatable tank for storing an aprotic oxygen-free and water-free organo-aluminum electrolyte and a second tank for storing a rinsing liquid connected to the treatment tank.
Claims10
Apparatus for electrodepositing aluminum from aprotic, oxygen-free and water-free organo-aluminum electrolytes, comprising:
- a. a heated treatment tank;
- b. means to close said tank airtight;
- c. means to admit an inert gas to said tank;
- d. a rotatable electroplating drum arranged within said treatment tank;
- e. a first tank for storing the electrolyte connected through a first valve and first pumping means to the treatment tank;
- and
- f. a second tank for storing a rinsing liquid connected through a second valve and second pumping means to the treatment tank, whereby electrolyte and rinsing liquid may be transferred to and from said treatment tank by operation of said valves and pumping means.
A method for electrodepositing aluminum from aprotic, oxygen-free and water-free organo-aluminum electrolytes comprising:
- a. placing a water-free inert aprotic rinsing liquid in a treatment tank under an inert gas;
- b. subsequently removing said rinsing liquid to a holding tank;
- c. then placing the electrolyte in the treatment tank;
- d. electroplating;
- and
- e. transferring said electrolyte into a storage tank.
Dependencies are inferred from the claim text.