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:
Apr. 07, 2020

Filed:

Jun. 02, 2017
Applicant:

Hydro Aluminium Rolled Products Gmbh, Grevenbroich, DE;

Inventor:

Hartmut Janssen, Hilden, DE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 15/01 (2006.01); B23K 35/28 (2006.01); B23K 1/00 (2006.01); B23K 35/00 (2006.01); B23K 35/02 (2006.01); F28F 21/08 (2006.01); F28F 9/02 (2006.01); F28D 1/03 (2006.01); F28D 1/053 (2006.01); C22C 21/00 (2006.01); C22C 21/02 (2006.01); F28F 1/00 (2006.01);
U.S. Cl.
CPC ...
B23K 35/286 (2013.01); B23K 1/0012 (2013.01); B23K 35/002 (2013.01); B23K 35/0222 (2013.01); B23K 35/0238 (2013.01); B32B 15/016 (2013.01); C22C 21/00 (2013.01); C22C 21/02 (2013.01); F28D 1/0391 (2013.01); F28D 1/05366 (2013.01); F28F 1/00 (2013.01); F28F 9/02 (2013.01); F28F 21/084 (2013.01); F28F 21/089 (2013.01); Y10T 428/12764 (2015.01);
Abstract

The invention relates to a brazable three-layered aluminium composite material having at least three layers with at least two different aluminium alloys, whereby an inner layer of the at least three layers is an aluminium brazing layer made from an aluminium brazing alloy, the other layers are configured as covering layers and include at least one further aluminium alloy, wherein the at least one further aluminium alloy has a higher solidus temperature than the liquidus temperature of the aluminium brazing alloy. The individual covering layers have a thickness which exceeds the thickness of the aluminium brazing layer by at least a factor of 1.5, preferably by a factor of 5. The brazable aluminium composite material is simply structured, has good brazing properties for the production of butt-joint brazing connections, significantly reduces the risk of a 'burning through' of brazed-on components and provides sufficient mechanical properties.


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