Aluminum alloy extrusion material for a connector which is excellent in extrusion property and sacrificial anode property

Abstract

An aluminum alloy extrusion material for a connector which is excellent in extrusion property and sacrificial anode property consists of 0.2 to 0.8% (hereinafter, “%” means “mass %”) of Si, 0.45 to 0.9% of Mg, 1.0 to 3.5% of Zn, 0.001 to 0.2% of Ti and the balance of Al plus unavoidable impurities.

1 . An aluminum alloy extrusion material for a connector which is excellent in extrusion property and sacrificial anode property, consisting of 0.2 to 0.8% (hereinafter, “%” means “mass %”) of Si, 0.45 to 0.9% of Mg, 1.0 to 3.5% of Zn, 0.001 to 0.2% of Ti and the balance of Al plus unavoidable impurities. 
     
     
         2 . The aluminum alloy extrusion material as set forth in  claim 1 ,
 wherein a content of Zn is changed from a range of 1.0 to 3.5% to a range of 1.5 to 2.5%.   
     
     
         3 . The aluminum alloy extrusion material as set forth in  claim 1 ,
 wherein the aluminum alloy extrusion material is molded in a hollow shape.   
     
     
         4 . The aluminum alloy extrusion material as set forth in  claim 1 ,
 wherein an electric potential of the aluminum alloy extrusion material is lower than an electric potential of a pipe member to be swaged by 100 mV or more.   
     
     
         5 . The aluminum alloy extrusion material as set forth in  claim 1 ,
 wherein the pipe member is made of an Al—Mg—Si series alloy or an Al—Mn series alloy.