referring to the drawings , the device object of this application comprises in combination two main parts ; the tundish ( 8 ) and the inductor ( 10 ), and which , also comprises in combination a cylindrical refractory sleeve joint ( 1 ) which forms the discharge channel , placed between the molding ( 3 ) and the lower part of the inductor ( 10 ). installed into the inductor ( 10 ), there are three pairs of magnetic field insulators ( 7 ) surrounding the coil ( 6 ) and the water cooler copper coil ( 5 ) divided in three segments , the upper segment ( 5 a ) for cooling , the intermediate segment ( 5 c ) for working , and the lower segment ( 5 b ) also for cooling . in order to join the coil ( 9 ) to the mold ( 3 ), the device has a monolithic refractory joint ( 1 ) which forms the discharge channel , with the following characteristics : ______________________________________density ( gr / cm . sup . 3 ): 2 . 30 minimumapparent porosity (%): 12 . 0 maximumcompression resistance ( kg / cm . sup . 2 ): 100 minimumrupture modulus ( kg / cm . sup . 2 ) 35 . 0 minimumto room temperature : to 1400 ° c . : 35 . 0 minimumthermal expansion to 1000 ° c . (%): 0 . 25 maximum______________________________________ the upper part of the tundish ( 8 ), is surrounded by the metallic container ( 11 ), lined with refractory brick ( 12 ) joined to the inductor ( 10 ). the inductor ( 10 ), is lined with a refractory material ( 4 ), which is compatible with the discharge channel ( 1 ) and the refractory within the container ( 11 ). the inductor ( 10 ) also has a refractory protector ( 3 ) between the coil ( 6 ) and the discharge channel ( 1 ). the subjection plate ( 2 ), works as a curb element for the discharge channel ( 1 ) and the refractory protection material ( 3 ).