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.
Patent No.:
Date of Patent:
Jan. 19, 2010
Filed:
Oct. 12, 2006
Klaus Vieregge, Nauort, DE;
Sampath Desikan, Koblenz, DE;
Adrianus Jacobus Wittebrood, Velserbroek, NL;
Mark Henrik Röger, Koblenz, DE;
Job Anthonius Van Der Hoeven, Haarlem, NL;
Andreas Eilemann, Erdmannhausen, DE;
Matthias Gördeler, Stuttgart, DE;
Matthias Traub, Korntal-Münchingen, DE;
Matthias Türpe, Marbach a. N., DE;
Bernd Grünenwald, Nürtingen, DE;
Klaus Vieregge, Nauort, DE;
Sampath Desikan, Koblenz, DE;
Adrianus Jacobus Wittebrood, Velserbroek, NL;
Mark Henrik Röger, Koblenz, DE;
Job Anthonius Van Der Hoeven, Haarlem, NL;
Andreas Eilemann, Erdmannhausen, DE;
Matthias Gördeler, Stuttgart, DE;
Matthias Traub, Korntal-Münchingen, DE;
Matthias Türpe, Marbach a. N., DE;
Bernd Grünenwald, Nürtingen, DE;
Behr GmbH & Co. KG, Stuttgart, DE;
Aleris Aluminum Koblenz GmbH, Koblenz, DE;
Abstract
A multi-layered brazing sheet with improved long life corrosion resistance achieved by balancing the Zn, Cu, Mn, Si and Mg content of the core and interliner alloy. The brazing sheet has a core of a 3xxx alloy, an inner braze cladding of a 4xxx alloy, and between core and inner braze cladding an interliner of a 3xxx alloy. The 3xxx alloy of the core has 0.55-1.0 wt % Cu, 0.7-1.8 wt % Mn, <0.3 wt % Mg, <0.4 wt % Zn. The 3xxx alloy of the interliner has <0.25 wt % Cu, 0.5-1.5 wt % Mn, <0.3 wt % Mg, 0.1-5.0 wt % Zn. A 1xxx or 7xxx alloy could be used for the interliner instead of the 3xxx alloy.