Conditioning of a litho strip

US8211622B2 · kind B2 · utility

Assignee

• Hydro Aluminium Deutschland GmbH · DE

Inventors

• Bernhard Kernig · Cologne, DE
• Henk-Jan Brinkman · Bonn, DE

Key dates

• Filing date: Apr 5, 2006
• Grant date: Jul 3, 2012
• Expiry date: Sep 24, 2028

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C23G1/22
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

A method of conditioning the surface of a work piece, particularly of a strip or sheet, more particularly of a lithostrip or lithosheet, including an aluminum alloy is provided. The method for conditioning the surface of a work piece and a work piece including an aluminum alloy enabling an increasing manufacturing speed in electro-chemically graining and maintaining at the same time a high quality of the grained surface, includes a conditioning method which comprises at least the two steps, degreasing the surface of the work piece with a degreasing medium and subsequently cleaning the surface of the work piece by pickling.