Use of a copper zinc alloy

Abstract

A copper zinc alloy that is used as a material for a sliding bearing wherein the alloy comprises 59-73% copper, 2.7-8.5% manganese, 1.5-6.3% aluminum, 0.2-4% silicon, 0.2-3% iron, 0-2% lead, 0-2% nickel, 0-0.4% tin, residual zinc and unavoidable impurities.

1 . A copper zinc alloy used as a material for a sliding bearing, wherein the alloy comprises in percent by weight 59-73% copper, 2.7-8.5% manganese, 1.5-6.3% aluminum, 0.2-4% silicon, 0.2-3% iron, 0-2% lead, 0-2% nickel, 0-0.4% tin, residual zinc and unavoidable impurities. 
     
     
         2 . A copper zinc alloy as claimed in  claim 1 , wherein the alloy comprises 68-72.5% copper, 5.8-8.5% manganese, 3.6-6.3% aluminum, 0.5-3.3% silicon, 0.2-2.5% iron, 0.2-1.9% lead, 0-1.5% nickel, 0-0.4% tin, residual zinc and unavoidable impurities. 
     
     
         3 . A copper zinc alloy as claimed in  claim 2 , wherein the alloy comprises 68.9-71.4% copper, 6.9-8.5% manganese, 4.3-6% aluminum, 1.1-2.6% silicon, 0.4-1.9% iron, 0.3-1.6% lead, 0-0.8% nickel, 0-0.4% tin, residual zinc and unavoidable impurities. 
     
     
         4 . A copper zinc alloy as claimed in  claim 3 , wherein the alloy comprises 69.5-70.5% copper, 7.4-8.1% manganese, 4.8-5.7% aluminum, 1.5-2.2% silicon, 0.8-1.4% iron, 0.4-1.2% lead, 0-0.3% nickel, 0-0.4% tin, residual zinc and unavoidable impurities. 
     
     
         5 . A copper zinc alloy as claimed in  claim 3 , wherein the alloy comprises 69.4-71.4% copper, 7.4-8.1% manganese, 4.8-5.7% aluminum, 1.7-2.2% silicon, 0.8-1.4% iron, 0.4-1.2% lead, 0-0.3% nickel, 0-0.4% tin, residual zinc and unavoidable impurities. 
     
     
         6 . A copper zinc alloy as claimed in  claim 5 , wherein the alloy comprises more than 70 and up to 71.4% copper, 7.4-8.1% manganese, 4.8-5.7% aluminum, 1.8-2.2% silicon, 0.8-1.4% iron, 0.4-1.2% lead, 0-0.3% nickel, 0-0.4% tin, residual zinc and unavoidable impurities. 
     
     
         7 . A copper zinc alloy as claimed in  claim 1 , wherein the alloy comprises 63.5-67.5% copper, 6-8.5% manganese, 3.6-6.3% aluminum, 0.5-3% silicon, 0.2-2.5% iron, 0.02-1.8% lead, 0-1.5% nickel, 0-0.4% tin, residual zinc and unavoidable impurities. 
     
     
         8 . A copper zinc alloy as claimed in  claim 7 , wherein the alloy comprises 64.5-66.5% copper, 6.9-8.5% manganese, 4.3-6% aluminum, 0.9-2.6% silicon, 0.4-1.9% iron, 0.1-1.3% lead, 0-0.8% nickel, 0-0.4% tin, residual zinc and unavoidable impurities. 
     
     
         9 . A copper zinc alloy as claimed in  claim 8 , wherein the alloy comprises 65.1-66% copper, 7.4-8.1% manganese, 4.8-5.7% aluminum, 1.3-2% silicon, 0.8-1.4% iron, 0.2-0.9% lead, 0-0.3% nickel, 0-0.4% tin, residual zinc and unavoidable impurities. 
     
     
         10 . A copper zinc alloy as claimed in  claim 9 , wherein the alloy comprises 65.1-66% copper, 7.4-8.1% manganese, 4.8-5.7% aluminum, 1.7-2% silicon, 0.8-1.4% iron, 0.2-0.9% lead, 0-0.3% nickel, 0-0.4% tin, residual zinc and unavoidable impurities. 
     
     
         11 . A copper zinc alloy as claimed in  claim 10 , wherein the alloy comprises 65.1-66% copper, 7.4-8.1% manganese, 4.8-5.7% aluminum, 1.8-2% silicon, 0.8-1.4% iron, 0.2-0.9% lead, 0-0.3% nickel, 0-0.4% tin, residual zinc and unavoidable impurities. 
     
     
         12 . A copper zinc alloy as claimed in  claim 1 , wherein the alloy comprises 68.3-72.7% copper, 5.7-8.5% manganese, 3.6-6.3% aluminum, 0.5-3.3% silicon, 0.2-2.5% iron, 0-0.1% lead, 0-1.5% nickel, 0-0.4% tin, residual zinc and unavoidable impurities. 
     
     
         13 . A copper zinc alloy as claimed in  claim 12 , wherein the alloy comprises 69.4-71.6% copper, 6.9-8.5% manganese, 4.3-6% aluminum, 1.1-2.6% silicon, 0.4-1.9% iron, 0-0.1% lead, 0-0.8% nickel, 0-0.4% tin, residual zinc and unavoidable impurities. 
     
     
         14 . A copper zinc alloy as claimed in  claim 13 , wherein the alloy comprises 70-71% copper, 7.4-8.1% manganese, 4.8-5.7% aluminum, 1.5-2.2% silicon, 0.8-1.4% iron, 0-0.1% lead, 0-0.3% nickel, 0-0.4% tin, residual zinc and unavoidable impurities. 
     
     
         15 . A copper zinc alloy as claimed in  claim 13 , wherein the alloy comprises 69.4-71.4% copper, 7.4-8.1% manganese, 4.8-5.7% aluminum, 1.7-2.2% silicon, 0.8-1.4% iron, 0-0.1% lead, 0-0.3% nickel, 0-0.4% tin, residual zinc and unavoidable impurities. 
     
     
         16 . A copper zinc alloy as claimed in  claim 15 , wherein the alloy comprises more than 70 and up to 71.4% copper, 7.4-8.1% manganese, 4.8-5.7% aluminum, 1.8-2.2% silicon, 0.8-1.4% iron, 0-0.1% lead, 0-0.3% nickel, 0-0.4% tin, residual zinc and unavoidable impurities. 
     
     
         17 . A copper zinc alloy as claimed in  claim 1 , wherein the alloy additionally comprises up to 0.1% of a material selected from the group consisting of at least one of the elements chromium, vanadium, titanium or zirconium with up to 0.1%.