Aluminum alloy clad member adopted to heat exchanger, and core material for the same

Abstract

A core material for an aluminum alloy clad material contains Si in a content of 0.3% to 1.5% (hereinafter “%” means “percent by mass”), Mn in a content of 0.3% t 2.0%, Cu in a content of 0.3% to 1.5%, Ti in a content of 0.01% to 0.5%, and B in a content of 0.001% to 0.1%, with the remainder including Al and inevitable impurities. The core material and an aluminum alloy clad material using the same ensure sufficient corrosion resistance and give a product having an extended life.

1 - 7 . (canceled) 
     
     
         8 . An aluminum alloy clad material comprising:
 a layer of the core material; and   a filler material layer clad on one or both sides of the core material layer,   wherein the filler material contains an Al—Si alloy, a Zn alloy, or a Sn alloy, and   wherein the core material consists of:
 silicon (Si) in a content of 0.3 to 1.5 percent by mass, 
 manganese (Mn) in a content of 0.3 to 2.0 percent by mass, 
 copper (Cu) in a content of 0.3 to 1.5 percent by mass, 
 titanium (Ti) in a content of 0.01 to 0.5 percent by mass, and 
 boron (B) in a content of 0.001 to 0.1 percent by mass, 
   and at least one element selected from the group consisting of:
 nickel (Ni) in a content of 0.5 percent by mass or less (excluding 0%), 
 chromium (Cr) in a content of 0.5 percent by mass or less (excluding 0%), 
 niobium (Nb) in a content of 0.5 percent by mass or less (excluding 0%), 
 vanadium (V) in a content of 0.5 percent by mass or less (excluding 0%), and 
 zirconium (Zr) in a content of 0.5 percent by mass or less (excluding 0%), 
   with the remainder including aluminum (Al) and inevitable impurities.   
     
     
         9 . An automobile heat exchanger comprising the aluminum alloy clad material according to  claim 8 . 
     
     
         10 . An automobile brazed radiator tube comprising the aluminum alloy clad material as clamed in  claim 8 . 
     
     
         11 . An aluminum alloy clad material comprising:
 a layer of the core material; and   a filler material layer clad on one or both sides of the core material layer,   wherein the filler material contains an Al—Si alloy, a Zn alloy, or a Sn alloy, and   wherein the core material consists of:
 silicon (Si) in a content of 0.3 to 1.5 percent by mass, 
 manganese (Mn) in a content of 0.3 to 2.0 percent by mass, 
 copper (Cu) in a content of 0.3 to 1.5 percent by mass, 
 titanium (Ti) in a content of 0.01 to 0.5 percent by mass, and 
 boron (B) in a content of 0.001 to 0.1 percent by mass, 
 with the remainder including aluminum (Al) and inevitable impurities. 
   
     
     
         12 . An automobile heat exchanger comprising the aluminum alloy clad material according to  claim 11 . 
     
     
         13 . An automobile brazed radiator tube comprising the aluminum alloy clad material as clamed in  claim 11 . 
     
     
         14 . An aluminum alloy clad material comprising:
 a layer of the core material;   a filler material layer clad on one side of the core material layer; and   a sacrificial material layer clad on the other side of the core material layer,   wherein the filler material contains an Al—Si alloy, a Zn alloy, or a Sn alloy, and   wherein the sacrificial material contains an Al—Zn alloy, and   wherein the core material consists of:
 silicon (Si) in a content of 0.3 to 1.5 percent by mass, 
 manganese (Mn) in a content of 0.3 to 2.0 percent by mass, 
 copper (Cu) in a content of 0.3 to 1.5 percent by mass, 
 titanium (Ti) in a content of 0.01 to 0.5 percent by mass, and 
 boron (B) in a content of 0.001 to 0.1 percent by mass, 
 with the remainder including aluminum (Al) and inevitable impurities. 
   
     
     
         15 . An automobile heat exchanger comprising the aluminum alloy clad material according to  claim 14 . 
     
     
         16 . An automobile brazed radiator tube comprising the aluminum alloy clad material as clamed in  claim 14 . 
     
     
         17 . An aluminum alloy clad material comprising
 a layer of the core material;   a filler material layer clad on one side of the core material layer; and   a sacrificial material layer clad on the other side of the core material layer,   wherein the filler material contains an Al—Si alloy, a Zn alloy, or a Sn alloy, and   wherein the sacrificial material contains an Al—Zn alloy, and   wherein the core material consists of:
 silicon (Si) in a content of 0.3 to 1.5 percent by mass, 
 manganese (Mn) in a content of 0.3 to 2.0 percent by mass, 
 copper (Cu) in a content of 0.3 to 1.5 percent by mass, 
 titanium (Ti) in a content of 0.01 to 0.5 percent by mass, 
 boron (B) in a content of 0.001 to 0.1 percent by mass, and 
 at least one element selected from the group consisting of:
 nickel (Ni) in a content of 0.5 percent by mass or less (excluding 0%), 
 chromium (Cr) in a content of 0.5 percent by mass or less (excluding 0%), 
 niobium (Nb) in a content of 0.5 percent by mass or less (excluding 0%), 
 vanadium (V) in a content of 0.5 percent by mass or less (excluding 0%), and 
 zirconium (Zr) in a content of 0.5 percent by mass or less (excluding 0%), 
 
   with the remainder including aluminum (Al) and inevitable impurities.   
     
     
         18 . An automobile heat exchanger comprising the aluminum alloy clad material according to  claim 17 . 
     
     
         19 . An automobile brazed radiator tube comprising the aluminum alloy clad material as clamed in  claim 17 .