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. 04, 2000
Filed:
Nov. 24, 1997
Applicant:
Inventors:
Makoto Ono, Osaka, JP;
Masahiro Hattori, Osaka, JP;
Eiji Itaya, Tokyo, JP;
Yutaka Yanagawa, Tokyo, JP;
Assignee:
Morita Chemical Industry Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K / ;
U.S. Cl.
CPC ...
148 26 ; 22826251 ;
Abstract
A flux for brazing aluminum members comprising potassium tetrafluoroaluminate, potassium pentafluoroaluminate and oxyfluoroaluminum, accomplishing the brazing of aluminum members at temperatures 5.degree. C. to 20.degree. C. lower than the temperature of conventional brazing that uses fluoride fluxes. Thus, heating energy required for the brazing can thus be saved, and conventional brazing equipment can be used as it is, in principle, without any changes; and since no expensive elements are used in the fluxes, the cost of brazing aluminum members can be reduced.