The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Mar. 11, 2025

Filed:

Jan. 16, 2024
Applicant:

Hydro Extruded Solutions As, Oslo, NO;

Inventors:

Arvid Espedal, Mårslet, DK;

Xiao-Jun Jiang, Haugesund, NO;

Minxia Li, Suzhou, CN;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22F 1/04 (2006.01); B32B 15/01 (2006.01); C22C 21/00 (2006.01);
U.S. Cl.
CPC ...
C22F 1/04 (2013.01); B32B 15/017 (2013.01); C22C 21/00 (2013.01);
Abstract

A method for producing an aluminium alloy extrusion, consisting of an alloy with the composition ≤0.30% by weight of silicon, ≤0.40% by weight of iron, 0.01-1.1% by weight of manganese, ≤0.30% by weight of magnesium, ≤0.70% by weight of zinc, ≤0.35% by weight of chromium, ≤0.20% by weight of zirconium, ≤0.25% by weight of titanium, ≤0.20% by weight vanadium, ≤0.10% by weight of copper, up to 0.15% by weight of other impurities, each not greater than 0.03% by weight and the balance aluminium, the method comprising the steps casting the molten metal into extrusion billet a) subjecting the billet to a homogenization treatment at a holding temperature of 550 to 620° C. for 6 to 10 hours b) heating the billet to a temperature of 400 to 550° C. c) extruding the billet to a tube.


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