Method and apparatus for making magnesium-based alloy

Abstract

An apparatus for fabricating the magnesium-based alloy includes a transferring device, a thixomolding machine, and an electromagnetic stirring device. The transferring device includes a feed inlet. The thixomolding machine includes a heating barrel having a first end and a second end, a nozzle disposed at the first end. The electromagnetic stirring device includes an electromagnetic induction coil disposed on an outer wall of the heating barrel.

1 . An apparatus for fabricating a magnesium-based alloy, comprising:
 a transferring device comprising a feed inlet and a material input device connected to the feed inlet;   a thixomolding machine comprising a heating barrel having a first end and a second end, and a nozzle disposed at the first end; and   an electromagnetic stirring device comprising an electromagnetic induction coil disposed on an outer wall of the heating barrel.   
     
     
         2 . The apparatus as claimed in  claim 1 , wherein the feed inlet comprises a first feed inlet and a second feed inlet connected to the first feed inlet. 
     
     
         3 . The apparatus as claimed in  claim 1 , wherein the thixomolding machine further comprises a heating portion disposed around an outer wall of the heating barrel, a plunger disposed in a center of the heating barrel, and a one-way valve positioned on the plunger. 
     
     
         4 . The apparatus as claimed in  claim 3 , wherein the electromagnetic induction coil is disposed on the outer wall of the heating portion. 
     
     
         5 . The apparatus as claimed in  claim 1 , wherein a power of the electromagnetic stirring device is in a range from about 0.2 kilowatts to about 15 kilowatts, a frequency of the electromagnetic stirring device is in a range from about 5 hertz to about 30 hertz, and a speed of the electromagnetic stirring device is in a range from about 500 revolutions to about 3000 revolutions per minute. 
     
     
         6 . The apparatus as claimed in  claim 1 , further comprising an injection molding machine comprising a die connected to the nozzle. 
     
     
         7 . The apparatus as claimed in  claim 1 , wherein the material input device is positioned at the second end. 
     
     
         8 . The apparatus as claimed in  claim 1 , wherein the first feed inlet receives carbon nanotubes and the second feed inlet receives magnesium particles, and the heating barrel heats the carbon nanotubes and magnesium particles to a semi-solid paste. 
     
     
         9 . The apparatus as claimed in  claim 1 , wherein the heating barrel is filled with a protective gas.