Title:
MANUFACTURE OF ALUMINUM BRAZED ARTICLES HAVING EXCELLENT CORROSION RESISTANCE
Document Type and Number:
Japanese Patent JP3916303
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a process for producing aluminum brazed articles having excellent corrosion resistance which is capable of reducing a cost and preventing the local corrosion of a brazing filler metal.
SOLUTION: This process for producing the aluminum brazed articles consists brazing articles to be brazed which are formed by using brazing sheets provided with aluminum brazing filler metals 1 contg. Si by heating to the surfaces of an aluminum core material 2 and then executing cooling treatment. The cooling treatment in this process is executed by subjecting the brazed articles to a first cooling treatment of cooling the articles down to a first cooling temp. region in a range of 548 to 577°C from the brazing temp. at a cooling rate of 3 to 15°C/min, then to a second cooling treatment of cooling the articles from the first cooling region down to a second cooling region in a range of 350 to 470°C at a cooling rate of 20 to 60°C/min.
Inventors:
Takasaki Kanji
Kanai Fuyoshi
Akiyoshi
Takashi Terada
Kanai Fuyoshi
Akiyoshi
Takashi Terada
Application Number:
JP23734397A
Publication Date:
May 16, 2007
Filing Date:
September 02, 1997
Export Citation:
Assignee:
SHOWA DENKO K.K.
International Classes:
B23K1/00; B23K1/19; B23K31/02; B23K35/22; C22C21/00; C22F1/00; C22F1/04; (IPC1-7): B23K1/00; B23K1/19; B23K31/02; B23K35/22; C22C21/00; C22F1/04; //C22F1/00; C22F1/00; C22F1/00; C22F1/00; C22F1/00; C22F1/00
Domestic Patent References:
| JP5112853A | ||||
| JP7004661B2 | ||||
| JP9194976A | ||||
| JP63002556A | ||||
| JP8276265A |
Attorney, Agent or Firm:
Hisayoshi Shimizu
Ken Takada
Kurose Yasuhisa
Ken Takada
Kurose Yasuhisa
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