Title:
HEAT EXCHANGER EXCELLENT IN CORROSION RESISTANCE
Document Type and Number:
Japanese Patent JP3151152
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a heat exchanger excellent in corrosion resistance, capable of sufficiently withstanding use even under an acid atmosphere.
SOLUTION: In this heat exchanger, an aluminum tube 2 and a fin 3, composed of an aluminum brazing sheet prepared by cladding both sides of a core material with cladding material, are arranged alternately and brazed integrally. At this time, a Zn thermally sprayed layer is formed on the tube 2, and the cladding material of the brazing sheet 3 is composed of an Al alloy brazing filler metal having a composition consisting of, by weight, 3-15% Si, 0.5-2.0% Zn, and the balance Al with impurities, and further, the tube 2 and the fin 3 are brazed by using a fluoride type flux.
Inventors:
Hiroyuki Sebata
Masahiro Kojima
Masahiro Kojima
Application Number:
JP19799996A
Publication Date:
April 03, 2001
Filing Date:
July 26, 1996
Export Citation:
Assignee:
Showa Aluminum Co., Ltd.
International Classes:
F28F19/06; C22C21/00; C23C4/08; (IPC1-7): C23C4/08; C22C21/00; F28F19/06
Domestic Patent References:
| JP571893A | ||||
| JP6194092A | ||||
| JP62206387A |
Attorney, Agent or Firm:
Hisayoshi Shimizu (2 outside)
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