Casting of an aluminium alloy

Abstract

A casting with good heat resistance comprises an alloy with 2 to 4 w. % magnesium 0.9 to 1.5 w. % silicon 0.1 to 0.4 w. % manganese 0.1 to 0.4 w. % chromium max. 0.2 w. % iron max. 0.1 w. % copper max. 0.2 w. % zinc max. 0.2 w. % titanium max. 0.3 w. % zirconium max. 0.008 w. % beryllium max. 0.5 w. % vanadium with aluminium as the remainder, with further elements and production-induced contaminants individually max. 0.02 w. %, total max. 0.2 w. %.

1 : A casting process for producing a cast product comprising: 
 (a) providing an aluminum alloy comprising: 
 2 to 4 w. % magnesium  
 0.9 to 1.5 w. % silicon  
 0.1 to 0.4 w. % manganese  
 0.1 to 0.4 w. % chromium  
 max. 0.2 w. % iron  
 max. 0.1 w. % copper  
 max. 0.2 w. % zinc  
 max. 0.2 w. % titanium  
 max. 0.3 w. % zirconium  
 max. 0.008 w. % beryllium  
 max. 0.5 w. % vanadium  
 with aluminium as the remainder, with further elements and production-induced contaminants individually max. 0.02 w. %, total max. 0.2 w. %; and  
   (b) casting the aluminum alloy to produce a cast product.    
     
     
         2 : A process according to  claim 1 , wherein the alloy contains 2.5 to 3.5 w. % Mg.  
     
     
         3 : A process according to  claim 1 , wherein the alloy contains 0.9 to 1.3 w. % Si.  
     
     
         4 : A process according to  claim 1 , wherein the alloy contains 0.15 to 0.3 w. % Mn.  
     
     
         5 : A process according to  claim 1 , wherein the alloy contains 0.15 to 0.3 w. % Cr.  
     
     
         6 : A process according to  claim 1 , wherein the alloy contains 0.05 to 0.15 w. % Ti.  
     
     
         7 : A process according to  claim 1 , wherein the alloy contains max. 0.15 w. % Fe.  
     
     
         8 : A process according to  claim 1 , wherein the alloy contains max. 0.05 w. % Cu.  
     
     
         9 : A process according to  claim 1 , wherein the alloy contains 0.002 to 0.005 w. % Be.  
     
     
         10 : A process according to  claim 1 , wherein the alloy contains 0.01 to 0.1 w. % V.  
     
     
         11 : A process according to  claim 1 , wherein the alloy contains 0.1 to 0.2 w. % Zr.  
     
     
         12 : A process according to  claim 1 , wherein the alloy is sandcast or chilled casting process.  
     
     
         13 : A process according to  claim 11  wherein the alloy is chillcast or chilled casting process.  
     
     
         14 : An aluminium alloy with good heat resistance comprising: 
 2 to 4 w. % magnesium    0.9 to 1.5 w. % silicon    0.1 to 0.4 w. % manganese    0.1 to 0.4 w. % chromium    max. 0.2 w. % iron    max. 0.1 w. % copper    max. 0.2 w. % zinc    max. 0.2 w. % titanium    max. 0.3 w. % zirconium    max. 0.008 w. % beryllium    max. 0.5 w. % vanadium    with aluminium as the remainder, with further elements and production-induced contaminants individually max. 0.02 w. %, total max. 0.2 w. %.    
     
     
         15 : The alloy of  claim 14 , wherein the alloy contains 2.7 to 3.3 w. % Mg.  
     
     
         16 : The alloy of  claim 14 , wherein the alloy contains 0.05 to 0.15 w. % Ti.  
     
     
         17 : The alloy of  claim 14 , wherein the alloy contains max. 0.15 w. % Fe.  
     
     
         18 : The alloy of  claim 14 , wherein the alloy contains max. 0.05 w. % Cu.  
     
     
         19 : The alloy of  claim 14 , wherein the alloy contains 0.002 to 0.005 w. % Be.  
     
     
         20 : The alloy of  claim 14 , wherein the alloy contains 0.01 to 0.1 w. % V.