Apparatus for manufacturing semi-solid metallic slurry

Abstract

Provided is an apparatus for manufacturing a high-quality semi-solid metallic slurry containing fine, uniform spherical particles that can be readily and conveniently applied to a subsequent process, with improvements in energy efficiency and mechanical properties, cost reduction, convenience of casting, shorter manufacturing time, and easy discharge. The apparatus includes: at least one sleeve with two open ends, through one of which molten metal in liquid state is loaded into the sleeve; a stirring unit which applies an electromagnetic field to the molten metal in the sleeve; and a shutter unit which closes the other end of the sleeve to form a base of the sleeve and opens the base of the sleeve to discharge a slurry after manufacture from the sleeve.

1 . An apparatus for manufacturing a semi-solid metallic slurry, the apparatus comprising: 
 at least one sleeve with two open ends, through one of which molten metal in liquid state is loaded into the sleeve;    a stirring unit which applies an electromagnetic field to the molten metal in the sleeve; and    a shutter unit which closes the other end of the sleeve to form a base of the sleeve and opens the base of the sleeve to discharge a slurry after manufacture from the sleeve.    
     
     
         2 . The apparatus of  claim 1 , wherein the shutter unit is a stopper fixed to the other end of the sleeve.  
     
     
         3 . The apparatus of  claim 1 , wherein the shutter unit is a plunger inserted into the other end of the sleeve and moved up and down.  
     
     
         4 . The apparatus of  claim 1 , further comprising a pressing unit inserted into the one end of the sleeve to press the slurry in the sleeve down.  
     
     
         5 . The apparatus of  claim 1 , wherein the molten metal in the sleeve is cooled until the molten metal has a solid fraction of 0.1-0.7.  
     
     
         6 . The apparatus of  claim 5 , further comprising a temperature control element to control the temperature of the molten metal during cooling.