Aluminum casting material comprising titanium boride and method of manufacturing the same

Abstract

Disclosed is an aluminum casting material including aluminum, silicon, titanium and boron, particularly 81-93 wt % of aluminum, 5-13 wt % of silicon, 1-3 wt % of titanium and 1-3 wt % of boron. The aluminum casting material has superior elasticity compared to that of a conventional aluminum alloy, even without employing a material of high cost such as carbon nanotube (CNT). While the application of the conventional aluminum alloy is largely restricted to a low pressure casting process, the aluminum material of the present invention can be applied to all common casting processes including a high pressure casting.

1 . An aluminum casting material, comprising about 81-93 wt % of aluminum, about 5-13 wt % of silicon, about 1-3 wt % of titanium and about 1-3 wt % of boron. 
     
     
         2 . The aluminum casting material of  claim 1 , comprising about 86-91 wt % of aluminum, about 5-8 wt % of silicon, about 2-3 wt % of titanium and about 2-3 wt % of boron. 
     
     
         3 . The aluminum casting material of  claim 1 , further comprising about 0.1-5 parts by weight of iron, copper, manganese, magnesium, nickel, or zinc relative to 100 parts by weight of the aluminum casting material. 
     
     
         4 . A method of manufacturing the aluminum casting material of  claim 1 , the method comprising adding about 2-10 wt % of titanium and about 2-10 wt % of boron to a molten metal comprising aluminum and silicon, wherein the aluminum casting material comprises about 80-96 wt % of aluminum, and wherein the wt % are relative to the total weight of the aluminum casting material. 
     
     
         5 . An aluminum casting material comprising aluminum, silicon, titanium and boron, wherein the aluminum casting material comprises up to 13 wt % silicon and at least 70 wt % aluminum. 
     
     
         6 . The aluminum casting material of  claim 5  comprising at least 75 wt % aluminum. 
     
     
         7 . The aluminum casting material of  claim 5  comprising 81-93 wt % aluminum. 
     
     
         8 . The aluminum casting material of  claim 5  comprising 5-13 wt % silicon. 
     
     
         9 . The aluminum casting material of  claim 5  comprising 5-8 wt % silicon. 
     
     
         10 . The aluminum casting material of  claim 5  wherein the titanium and boron are included in the aluminum casting material so as to increase the elasticity of the material by at least 10% compared to the material without the addition of titanium and boron.