Method for inhibiting dezincification of brass

Abstract

A brass alloy with dezincification inhibition capability and good cutting and mechanical properties is provided. The brass alloy includes niobium and brass. Niobium is in an amount ranging from 0.01 to 0.15 part by weight and brass is in an amount ranging from 99.85 to 99.99 parts by weight based on 100 parts by weight of the brass alloy.

What is claimed is: 
     
         1 . A method for inhibiting dezincification of brass, comprising adding niobium into brass to form a brass alloy composition, melting the brass alloy composition to form a brass alloy melt, and cooling the brass alloy melt to room temperature so as to form a brass alloy with dezincification inhibition capability,
 wherein, based on 100 parts by weight of said brass alloy, said niobium is in an amount ranging from 0.01 to 0.15 parts by weight, and said brass is in an amount ranging from 99.85 to 99.99 parts by weight.   
     
     
         2 . The method according to  claim 1 , wherein before cooling to room temperature, the brass alloy melt is cooled to 80 to 85° C. 
     
     
         3 . The method according to  claim 1 , wherein the step of melting the brass alloy composition is conducted under a temperature ranging from 1100 to 1300° C. 
     
     
         4 . The method according to  claim 1 , wherein, based on 100 parts by weight of said brass alloy, said niobium is in an amount ranging from 0.029 to 0.077 parts by weight and said brass is in an amount ranging from 99.923 to 99.971 parts by weight. 
     
     
         5 . The method according to  claim 1 , wherein, based on 100 parts by weight of said brass alloy, said niobium is 0.077 parts by weight and said brass is 99.923 parts by weight. 
     
     
         6 . The method according to  claim 1 , wherein said brass includes 40 to 80 wt % of copper and 20 to 60 wt % of zinc. 
     
     
         7 . The method according to  claim 6 , wherein said brass includes 50 to 70 wt % of copper and 30 to 50 wt % of zinc. 
     
     
         8 . The method according to  claim 7 , wherein said brass includes 55 to 65 wt % of copper and 35 to 45 wt % of zinc.