BRAZING FURNACE AND BRAZING METHOD FOR ALUMINUM MATERIAL

Title:

BRAZING FURNACE AND BRAZING METHOD FOR ALUMINUM MATERIAL

Document Type and Number:

WIPO Patent Application WO/2016/067682

Kind Code:

A1

Abstract:

A brazing furnace (1) has a preheating chamber (2) and a brazing chamber (3). The preheating chamber (2) has the following: a vacuum pump (21) for reducing the pressure inside the chamber in a state in which the chamber houses a material to be treated (100); a preheating device (22) for preheating the material to be treated (100) under a reduced-pressure atmosphere; and a pressure-restoring gas introducing device (23) that introduces an inert gas for restoring the pressure inside the chamber after preheating. The brazing chamber (3) has a gas substitution device (31) for introducing the inert gas into the chamber and a main heating device (32) that heats the material to be treated (100) to a brazing temperature, and as a result of the foregoing, the brazing joining quality can be easily stabilized with regard to brazing in which the flux application amount is reduced or in which no flux is used.

Inventors:

ITOH YASUNAGA (JP)
YANAGAWA YUTAKA (JP)
SAKODA SHOICHI (JP)

Application Number:

PCT/JP2015/070550

Publication Date:

May 06, 2016

Filing Date:

July 17, 2015

Export Citation:

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Assignee:

UACJ CORP (JP)

International Classes:

B23K1/19; B23K1/008; B23K31/02; B23K101/02; B23K101/14; B23K103/10

Foreign References:

JPS5762859A	1982-04-16
JPS57106469A	1982-07-02
JP2014049746A	2014-03-17
JP2010219158A	2010-09-30
JP2014136223A	2014-07-28
JP2014055338A	2014-03-27
JP2014185386A	2014-10-02
JP2014104509A	2014-06-09
JPS6381839A	1988-04-12
US20130062399A1	2013-03-14

Other References: