Titanium-containing zinc wrought alloy

Abstract

The present invention relates to a zinc wrought alloy with improved machinability as compared to known wrought alloys, as well as semifinished products, forgings, turned parts, locks, screw connections, locking cylinders, sleeves, fittings, pressed parts, pneumatic parts, hydraulic parts, mountings, valves and ball valves that comprise a zinc wrought alloy according to the invention.

1 . A zinc wrought alloy having an Al content of from 5% by weight to 18% by weight, a Cu content of from 0.1% by weight to 4% by weight, an Mg content of from 0.001% by weight to 0.05% by weight, a Ti content of from 0.01% by weight to 1% by weight, wherein Zn is the balance to 100%, and wherein the alloy may contain impurities at a proportion of 0.07% by weight or less. 
     
     
         2 . The zinc wrought alloy according to  claim 1 , characterized in that lead is not alloyed. 
     
     
         3 . The zinc wrought alloy according to  claim 1 , characterized in that the content of Al is from 8% to 16% by weight. 
     
     
         4 . The zinc wrought alloy according to  claim 1 , characterized in that the content of Ti is from 0.03% to 1% by weight. 
     
     
         5 . The zinc wrought alloy according to  claim 1 , characterized in that the content of Cu is from 0.1% to 2.5% by weight. 
     
     
         6 . The zinc wrought alloy according to  claim 1 , characterized in that the content of Mg is from 0.003% by weight to 0.05% by weight. 
     
     
         7 . The zinc wrought alloy according to  claim 1 , characterized by containing silicon as an impurity. 
     
     
         8 . The zinc wrought alloy according to  claim 1 , having an Al content from 5% to 9% by weight, a Cu content from 0.5% to 2.5% by weight, a magnesium content from 0.003% to 0.05% by weight, a titanium content from 0.05% to 1% by weight, with zinc as the balance to reach 100% by weight. 
     
     
         9 . The zinc wrought alloy according to  claim 1 , having an Al content from 5% to 9% by weight, a Cu content from 0.5% to 1.5% by weight, an Mg content from 0.003% to 0.05% by weight, a Ti content from 0.05% to 1% by weight, with zinc as the balance to reach 100% by weight. 
     
     
         10 . The zinc wrought alloy according to  claim 1 , having an Al content from 10% to 12% by weight, a Cu content from 0.5% to 2.5% by weight, an Mg content from 0.003% to 0.05% by weight, a Ti content from 0.05% to 1% by weight, with zinc as the balance to reach 100% by weight. 
     
     
         11 . The zinc wrought alloy according to  claim 1 , having an Al content from 10% to 12% by weight, a Cu content from 0.5% to 1.5% by weight, an Mg content from 0.003% to 0.05% by weight, a Ti content from 0.05% to 1% by weight, with zinc as the balance to reach 100% by weight. 
     
     
         12 . The zinc wrought alloy according to  claim 1 , having an Al content from 14% to 16% by weight, a Cu content from 0.5% to 2.5% by weight, an Mg content from 0.003% to 0.05% by weight, a Ti content from 0.05% to 1% by weight, with zinc as the balance to reach 100% by weight. 
     
     
         13 . The zinc wrought alloy according to  claim 1 , having an Al content from 14% to 16% by weight, a Cu content from 0.5% to 1.5% by weight, an Mg content from 0.003% to 0.05% by weight, a Ti content from 0.05% to 1% by weight, with zinc as the balance to reach 100% by weight. 
     
     
         14 . The zinc wrought alloy according to  claim 1 , having an Al content from 16% to 18% by weight, a Cu content from 0.5% to 2.5% by weight, a magnesium content from 0.001% to 0.05% by weight, a titanium content from 0.05% to 1% by weight, with zinc as the balance to reach 100% by weight. 
     
     
         15 . The zinc wrought alloy according to  claim 1 , having an Al content from 16% to 18% by weight, a Cu content from 0.5% to 1.5% by weight, a magnesium content from 0.001% to 0.05% by weight, a titanium content from 0.05% to 1% by weight, with zinc as the balance to reach 100% by weight. 
     
     
         16 . An object of manufacture comprising the zinc wrought alloy according to  claim 1 , the object of manufacture being a semifinished product and/or article. 
     
     
         17 . The object of manufacture according to  claim 16 , wherein said semifinished product is a billet, an extruded section, a drawn section, a wire, a strip, a powder, or a pressure die-cast alloy. 
     
     
         18 . The object of manufacture according to  claim 16 , wherein said article is a forging, turned part, lock, screw connection, locking cylinder, sleeve, fitting, pressed part, pneumatic part, hydraulic part, mounting, valve or ball valve. 
     
     
         19 . The object of manufacture of  claim 16  being one of semifinished products, forgings, turned parts, locks, screw connections, locking cylinders, sleeves, fittings, pressed parts, pneumatic parts, hydraulic parts, mountings, valves and ball valves. 
     
     
         20 . A process for preparing and/or reshaping and/or processing semifinished products, forgings, turned parts, locks, screw connections, locking cylinders, sleeves, fittings, pressed parts, pneumatic parts, hydraulic parts, mountings, valves and ball valves according to  claim 19  by cold or hot reshaping. 
     
     
         21 . The process according to  claim 20 , characterized in that said processing includes processing by forging or machining, especially turning, drilling, milling, broaching, sawing, grinding or honing.