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:
Dec. 14, 2010
Filed:
Mar. 20, 2007
Haruzo Katoh, Osaka, JP;
Takashi Watsuji, Osaka, JP;
Ken Matsumura, Osaka, JP;
Toyo Aluminium Kabushiki Kaisha, Osaka, JP;
Abstract
Provided are a pasty composition for aluminum brazing which has excellent coating properties, is capable of attaining favorable dimensional accuracy of products obtained after brazing, causes less erosion, and allows favorable external appearances of brazed portions (fillets); an aluminum-containing member coated with the pasty composition for aluminum brazing; and a method, using the pasty composition for aluminum brazing, for brazing the aluminum-containing members. The pasty composition for aluminum brazing contains an aluminum-containing powder. In a case where on a cumulative grading curve of the aluminum-containing powder, a particle diameter D μm which corresponds to a Q volume % is indicated as D(Q) μm, D(50) μm is greater than or equal to 20 μm and less than or equal to 150 μm; and D(90) μm/D(10) μm is less than or equal to 5. A mass percentage of particles, in the aluminum-containing powder, which pass through a screen mesh having an opening of 45 μm is less than or equal to 50%. A flowability of the aluminum-containing powder is less than or equal to 80 seconds/50 g.