Title:
HEAT-EXCHANGER MADE OF ALUMINUM ALLOY
Document Type and Number:
Japanese Patent JP3770680
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To ensure brazing ability between a plate piece and a header without welding the opening of a notch.
SOLUTION: The melt point of a fist brazing material 20 laminated on the outer peripheral surface of a header 13 is reduced to a value lower than the melt point of a second brazing material 19 laminated on the two surfaces of a plate piece 9. Before viscosity of the second brazing material 19 is lowered, the first brazing material 20 is attracted to a microgap part and removed from the periphery of a notch 8. Thus, the second brazing material 19 is attracted to the first brazing material 20 and prevented from washing out to the outside of the header 13. As a result, the second brazing material 19 is effectively used for brazing between the plate piece 9 and the header 13.
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Inventors:
Kazunobu Inagai
Makoto Kanai
Makoto Kanai
Application Number:
JP568897A
Publication Date:
April 26, 2006
Filing Date:
January 16, 1997
Export Citation:
Assignee:
Calsonic Kansei Co., Ltd.
International Classes:
F28F9/02; F28F9/16; (IPC1-7): F28F9/02; F28F9/16
Domestic Patent References:
| JP4063980U | ||||
| JP7305994A | ||||
| JP51068457A | ||||
| JP4251664A |
Attorney, Agent or Firm:
Takeo Koyama
Kinzo Koyama
Kinzo Koyama