Aluminium alloy strip for adhesive connection

US10889912B2 · kind B2 · utility

Assignee

• Hydro Aluminum Rolled Products GmbH · DE

Inventors

• Bernhard Kernig · Cologne, DE
• Henk-Jan Brinkman · Bonn, DE
• Kathrin Eckhard · Cologne, DE
• Gernot Nitzsche · Meckenheim, DE
• Frank Hirschmann · Niederwerrn, DE

Key dates

• Filing date: Jul 26, 2018
• Grant date: Jan 12, 2021
• Expiry date: Jul 26, 2038

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C25F7/00
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

The invention relates to a strip consisting of an aluminium alloy for providing adhesive connections. In addition, the invention relates to a method for producing a strip having a one or two-sided surface structure which consists of an aluminium alloy, at least provided in certain areas and prepared for an adhesive connection, and also relates to a corresponding adhesive connection. The object of providing an aluminium alloy strip optimised for adhesive connections, which has optimised surface properties for ageing-resistant adhesive connections, on the one hand, and which can be cost-effectively produced in a way which is reliable in terms of the process, on the other hand, is achieved for a strip consisting of an aluminium alloy for providing adhesive connections by the strip at least in areas having a surface structure prepared for adhesive connections, wherein the surface structure has depressions which were produced using an electrochemical graining process.