Metal molded body manufacturing apparatus by electromagnetic stirring

Abstract

There is provided a metal molded body manufacturing apparatus for electromagnetically stirring metallic molten metal and molding a metal molded body. The metal molded body manufacturing apparatus includes: a die having an inclined side wall; and a moving magnetic field generation section that stirs the molten metal in the die, wherein the moving magnetic field generation section includes a magnetic body, and a coil wound around the magnetic body as a center, and an end surface of the magnetic body is disposed in parallel to an inner surface of the side wall.

1 . A metal molded body manufacturing apparatus for electromagnetically stirring metallic molten metal and molding a metal molded body, the metal molded body manufacturing apparatus comprising:
 a die including a side wall having an inclined inner surface; and   a moving magnetic field generation section that is disposed along an outer periphery of the die, and stirs the molten metal in the die, wherein   the moving magnetic field generation section includes a magnetic body, and a coil wound around the magnetic body as a center, and   an end surface of the magnetic body is disposed such that a gap between the end surface of the magnetic body and the inner surface of the side wall becomes uniform.   
     
     
         2 . The metal molded body manufacturing apparatus according to  claim 1 , wherein
 an inclination of the side wall serves as a draft angle for extracting the metal molded body.   
     
     
         3 . The metal molded body manufacturing apparatus according to  claim 2 , wherein
 the draft angle is 1° to 9°.   
     
     
         4 . The metal molded body manufacturing apparatus according to  claim 1 , wherein
 the side wall has a pair of facing walls that face each other,   the moving magnetic field generation section is provided along each of the facing walls, and   the moving magnetic field generation sections generate respective moving magnetic fields in reverse directions from each other so as to generate a vortex in the molten metal.   
     
     
         5 . The metal molded body manufacturing apparatus according to  claim 1 , further comprising:
 an inclined plate to which a base, and the moving magnetic field generation section are fixed; and   an inclination adjusting mechanism that adjusts an inclination of the inclined plate to the base so as to uniform the gap between the end surface of the magnetic body and the inner surface of the side wall, the inclination adjusting mechanism being disposed between the inclined plate and the base.   
     
     
         6 . The metal molded body manufacturing apparatus according to  claim 1 , wherein
 the end surface of the magnetic body of the moving magnetic field generation section extends beyond an upper surface of the molten metal put into the die from below a bottom of the die.   
     
     
         7 . The metal molded body manufacturing apparatus according to  claim 1 , wherein
 the die has a curved shape in plan view,   an additional magnetic body member is provided in the end surface of the magnetic body of the moving magnetic field generation section, and   an end surface of the additional magnetic body member is a curved surface along a curved inner surface of the die.