AlMgSi strip for applications having high formability requirements

US10612115B2 · kind B2 · utility

Assignee

• Hydro Aluminium Deutschland GmbH · DE

Inventors

• Henk-Jan Brinkman · Bonn, DE
• Thomas Wirtz · Hamburg, DE
• Dietmar Schröder · Grevenbroich, DE
• Eike Brünger · Dormagen, DE
• Kai-Friedrich Karhausen · Bonn, DE

Key dates

• Filing date: Oct 30, 2015
• Grant date: Apr 7, 2020
• Expiry date: Mar 10, 2038

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C22F1/05
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

The invention relates to a method for producing a strip made of an AlMgSi alloy in which a rolling ingot is cast of an AlMgSi alloy, the rolling ingot is subjected to homogenization, the rolling ingot which has been brought to rolling temperature is hot-rolled, and then is optionally cold-rolled to the final thickness thereof. The problem of providing a method for producing an aluminum strip made of an AlMgSi alloy and an aluminum strip, which has a higher breaking elongation with constant strength and therefore enables higher degrees of deformation in producing structured metal sheets, is solved in that the hot strip has a temperature of no more than 130° C. directly at the exit of the last rolling pass, preferably a temperature of no more than 100° C., and the hot strip is coiled at that or a lower temperature.