| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a clad material of aluminum alloys for a heat exchanger, which is superior in brazing bondability and the corrosion resistance of the outer surface, and is preferably used for a member of the heat exchanger that is made from aluminum alloys and is manufactured by brazing with the use of a fluoride flux in an inert gas atmosphere, and is particularly suitable for a tube material, a tank material and a header material. <P>SOLUTION: This clad material is a three-layer clad material comprising: a core material which is constituted by an aluminum alloy comprising 0.5-1.2% Si, 0.2-1.0% Cu, 1.0-1.8% Mn, and the balance Al with unavoidable impurities; a skin material 1 which clads one surface of the core material and is constituted by an aluminum alloy comprising 3-6% Si, 2-8% Zn, further one or two elements of 0.3-1.8% Mn and 0.05-0.30% Ti, and the balance Al with unavoidable impurities; and a skin material 2 which clads the other surface of the core material and is constituted by an aluminum alloy comprising 6-13% Si, and the balance Al with unavoidable impurities. The skin material 1 is used so as to come to the outer surface side. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
