Patent · US Active

Aluminum alloy free from aluminum carbide

US8869875B2 · kind B2 · utility

0Cited by

6References

18Claims

0Family size

Assignee

Hydro Aluminium Deutschland GmbH · DE

Inventors

Bernhard Kernig · Cologne, DE
Werner Droste · Hamburg, DE
Henk-Jan Brinkman · Bonn, DE

Key dates

Filing date	Mar 19, 2012
Grant date	Oct 28, 2014
Priority date	—
Expiry date	Mar 19, 2032

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC22C21/00
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

An aluminum alloy for producing an aluminum strip for lithographic print plate carriers, a method for producing an aluminum alloy for lithographic print plate carriers, in which, during the production of the aluminum alloy, after the electrolysis of the aluminum oxide, the liquid aluminum, up to the casting of the aluminum alloy, is supplied to a plurality of purification steps, as well as an aluminum strip for lithographic print plate carriers and a corresponding use of the aluminum strip for lithographic print plate carriers include a carbide content of less than 10 ppm, and preferably less than 1 ppm. As a result, the aluminum alloy, the method for producing the aluminum alloy, the aluminum strip, and corresponding use of the aluminum strip for lithographic print plate carriers described herein allow for the use of virtually gas-tight coatings.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.