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Aluminum alloy brazing material, brazing member, brazed article and brazinh method therefor using said material, brazing heat exchanging tube, heat exchanger and manufacturing method thereof using sai

A technology of heat exchange tubes and brazing materials, applied in heat exchange equipment, welding/cutting media/materials, manufacturing tools, etc., can solve the problems of unsuitable thin tubes, prevent excessive corrosion, reduce corrosion depth, and resist corrosion. Good corrosion resistance

Inactive Publication Date: 2006-01-25
SHOWA DENKO KK
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore this brazing material is not suitable for the thin tubes mentioned above

Method used

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  • Aluminum alloy brazing material, brazing member, brazed article and brazinh method therefor using said material, brazing heat exchanging tube, heat exchanger and manufacturing method thereof using sai
  • Aluminum alloy brazing material, brazing member, brazed article and brazinh method therefor using said material, brazing heat exchanging tube, heat exchanger and manufacturing method thereof using sai
  • Aluminum alloy brazing material, brazing member, brazed article and brazinh method therefor using said material, brazing heat exchanging tube, heat exchanger and manufacturing method thereof using sai

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Embodiment Construction

[0090] The aluminum alloy brazing material according to the present invention is used to manufacture various brazing parts or brazing products, so as to finally improve the corrosion resistance of the brazing products. Therefore, an aluminum alloy brazing material and a brazing product according to the present invention will be described below.

[0091] To be brazed with fins for use in aluminum or aluminum alloy heat exchangers such as condensers or evaporators in automobiles, domestic or commercial air-conditioning units, or heat exchange tubes for radiators can be used as the above-mentioned brazing parts example. In the following description, "brazing parts or brazed heat exchange tubes", "substrates or heat exchange tube base materials", and "brazed products or heat exchangers" will be abbreviated as "brazing parts, etc.", respectively, "Substrates, etc.", "Brazing products, etc." The following description is mainly for the case where the brazed part is a brazed heat ex...

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Abstract

A heat exchanger 10 includes a brazing heat exchanging tube S and a fin 4. The heat exchanging tube S and the fin 4 are brazed with each other via the brazing layer 11 of the heat exchanging tube S. The brazing layer 11 is formed by spraying of a brazing material consisting of Si: 6 to 15 mass%, Zn :1 to 20 mass%, at least one of Cu: 0.3 to 0.6 mass% and Mn: 0.3 to 1. 5 mass, and the balance being aluminum and inevitable impurities.

Description

[0001] This application claims the benefit of Japanese Patent Application No. 2002-361130, filed December 12, 2002, and U.S. Provisional Patent Application No. 60 / 451,262, filed March 4, 2003, the disclosures of which are hereby incorporated in their entirety Reference. [0002] Cross References to Related Applications [0003] This application is filed pursuant to 35 U.S.C. §111(a) and required by 35 U.S.C. §119(e)(1) of U.S. Provisional Patent Application No. filed on March 4, 2003 under 35 U.S.C. §111(b). Priority of 60 / 451,262. technical field [0004] The invention relates to an aluminum alloy (hard) brazing material, a brazing piece, a brazing product using the brazing piece and a manufacturing method thereof. The present invention also relates to a heat exchange tube, a heat exchanger using the heat exchange tube and a method of manufacturing the heat exchanger, the heat exchange tube needs to have corrosion resistance in order to be used, for example, in automobiles,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/28C22C21/02F28F21/08
Inventor 南和彦山井智明川畑博之
Owner SHOWA DENKO KK
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