Patent · US Active

Aluminium multi-layered brazing sheet product and fluxless brazing method

US11225051B2 · kind B2 · utility

0Cited by

5References

13Claims

0Family size

Assignee

Aleris Rolled Products Germany GmbH · DE

Inventors

Bernd Jacoby · Limburg, DE
Steven Kirkham · Ransbach-Baumbach, DE
Arne Schlegel · Aachen, DE

Key dates

Filing date	Jan 23, 2017
Grant date	Jan 18, 2022
Priority date	—
Expiry date	Jan 23, 2037

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF28F21/084
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A multi-layered brazing sheet product having an aluminium core alloy layer provided on one or both sides with a brazing clad layer material, and an inter-layer material positioned between the aluminium core alloy layer and at least one of the brazing clad layer materials, wherein the brazing layer material(s) is made from an 4xxx-series aluminium alloy having 5% to 15% Si and up to 3% Mg, and wherein the inter-layer material is made from a 1xxx-series aluminium alloy having a purposive addition of Mg of 0.10% to 2.0%. The invention relates also to the use of the brazing sheet product in a fluxless controlled atmosphere brazing process.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.