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.

Date of Patent:
Feb. 17, 2004

Filed:

Jul. 18, 2001
Applicant:
Inventors:

Kazutaka Ishida, Osaka, JP;

Mitsuo Takahashi, Osaka, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23K 1/308 ; B23K 5/22 ; B23Q 1/500 ;
U.S. Cl.
CPC ...
B23K 1/308 ; B23K 5/22 ; B23Q 1/500 ;
Abstract

Articles to be brazed are preheated to an increased temperature in a preheating process and the temperature of the articles to be brazed is measured. Conversion data obtained and stored for different combinations of articles to be brazed is referred to on the basis of the measured temperature and a time for which brazing filler metal supply nozzles are kept in a wait state is set on the basis of the conversion data to define the timing for supplying the brazing filler metal wires (S ). A heating burner moves forward and then a timer starts counting the time for which the nozzles are kept in the wait state (S ). When the nozzle wait timer has counted the set time and expired, the brazing filler metal supply nozzles move forward and supply the wires to braze the articles (S to ). In this way, the articles to be brazed, heated by the heating burner, are at an increased temperature suitable for brazing at the time when the brazing filler metal wires are supplied.


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