METHOD FOR PLANE BRAZING OF ALUMINUM ALLOY MEMBERS

Title:

METHOD FOR PLANE BRAZING OF ALUMINUM ALLOY MEMBERS

Document Type and Number:

WIPO Patent Application WO/2014/030416

Kind Code:

A1

Abstract:

The purpose of the present invention is to form a sound fillet on the periphery of surfaces to be brazed, when two aluminum alloy members are brazed to each other by plane brazing using a single-layer brazing sheet. When aluminum alloy members having a solidus temperature of 610ºC or higher are brazed to each other by plane brazing using a single-layer brazing sheet constituted of an Al-Si-Mg alloy brazing material, a flux is applied not to the surfaces of the aluminum alloy members which are to be brazed with the single-layer brazing sheet but to an area which lies in the surface of the aluminum alloy member that is the larger in terms of plan-view area and which is separated from the periphery of the surface to be brazed. The single-layer brazing sheet is sandwiched between the aluminum alloy members. The aluminum alloy members are brazed to each other in an inert-gas atmosphere while keeping the brazing sheet in areal contact with the aluminum alloy members and while keeping the stack at a given brazing temperature and applying an areal pressure thereto.

Inventors:

KOKUBO TAKANORI (JP)
HORI HISASHI (JP)
TOGASHI RYOUSUKE (JP)

Application Number:

PCT/JP2013/066840

Publication Date:

February 27, 2014

Filing Date:

June 19, 2013

Export Citation:

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Assignee:

NIPPON LIGHT METAL CO (JP)

International Classes:

B23K1/19; B23K3/00; B23K3/06; B23K31/02; B23K35/14; B23K35/22; B23K35/28; C22C21/00; C22C21/02; B23K35/363; B23K35/40; B23K101/14

Foreign References:

JP2012071335A	2012-04-12
JP2007190592A	2007-08-02