Pulling-up-type continuous casting apparatus and upward continuous casting method

Abstract

A pulling-up-type continuous casting apparatus according to the present invention includes a holding furnace, a draw-out part, a shape-defining member, and a temperature measurement unit. The holding furnace holds a molten metal. The draw-out part draws out the molten metal from a molten-metal surface of the molten metal that is held in the holding furnace. The shape-defining member defines a cross-sectional shape of a cast-metal article to be cast by applying an external force to a held molten metal which is an unsolidified molten metal that has been drawn out by the draw-out part, the shape-defining member being located in the vicinity of the molten-metal surface. The temperature measurement unit measures the temperature of the held molten metal, and the temperature of the held molten metal is controlled based on the result of measurement in the temperature measurement unit.

1 . A pulling-up-type continuous casting apparatus, comprising:
 a holding furnace that holds a molten metal;   a draw-out part that draws out the molten metal from a molten-metal surface of the molten metal that is held in the holding furnace;   a shape-defining member that defines a cross-sectional shape of a cast-metal article to be cast by applying an external force to a held molten metal which is an unsolidified molten metal that has been drawn out by the draw-out part, the shape-defining member being located in the vicinity of the molten-metal surface; and   a temperature measurement unit that measures the temperature of the held molten metal,   wherein the temperature of the held molten metal is controlled based on the result of measurement in the temperature measurement unit.   
     
     
         2 . The pulling-up-type continuous casting apparatus according to  claim 1 , wherein the temperature measurement unit is a thermocouple and a temperature measuring junction of the temperature measurement unit is provided in the held molten metal. 
     
     
         3 . The pulling-up-type continuous casting apparatus according to  claim 1 , wherein the temperature measurement unit is a thermocouple and a temperature measuring junction of the temperature measurement unit is provided in the molten metal in the vicinity of the held molten metal. 
     
     
         4 . The pulling-up-type continuous casting apparatus according to  claim 1 , wherein the temperature measurement unit is a thermocouple and a temperature measuring junction of the temperature measurement unit is provided in the molten metal immediately below the held molten metal. 
     
     
         5 . The pulling-up-type continuous casting apparatus according to  claim 1 , wherein the temperature measurement unit is a thermocouple and a temperature measuring junction of the temperature measurement unit is provided in the vicinity of a contact surface between the shape-defining member and the held molten metal inside the shape-defining member. 
     
     
         6 . The pulling-up-type continuous casting apparatus according to  claim 1 , wherein the holding furnace controls the temperature of the molten metal based on the result of measurement in the temperature measurement unit to control the temperature of the held molten metal. 
     
     
         7 . The pulling-up-type continuous casting apparatus according to  claim 1 , further comprising a temperature controller that controls the temperature of the held molten metal based on the result of measurement in the temperature measurement unit. 
     
     
         8 . The pulling-up-type continuous casting apparatus according to  claim 7 , wherein the temperature controller is provided in the molten metal in the vicinity of the held molten metal. 
     
     
         9 . The pulling-up-type continuous casting apparatus according to  claim 7 , wherein the temperature controller is provided in the molten metal immediately below the held molten metal. 
     
     
         10 . The pulling-up-type continuous casting apparatus according to  claim 7 , wherein the temperature controller is formed to surround the molten metal in the vicinity of the held molten metal. 
     
     
         11 . The pulling-up-type continuous casting apparatus according to  claim 7 , further comprising a separating part that surrounds the molten metal in the vicinity of the held molten metal. 
     
     
         12 . The pulling-up-type continuous casting apparatus according to  claim 7 , wherein the temperature controller includes a protruding part that extends to the inside of the held molten metal. 
     
     
         13 . The pulling-up-type continuous casting apparatus according to  claim 7 , wherein the temperature controller is provided in the vicinity of a contact surface between the shape-defining member and the held molten metal inside the shape-defining member. 
     
     
         14 . A pulling-up-type continuous casting method comprising the steps of:
 placing a shape-defining member that defines a cross-sectional shape of a cast-metal article to be cast in the vicinity of a molten-metal surface of a molten metal that is held in a holding furnace;   pulling up the molten metal through the shape-defining member; and   measuring the temperature of a held molten metal which is an unsolidified molten metal that has been pulled up; and   controlling the temperature of the held molten metal based on the result of the measurement.   
     
     
         15 - 26 . (canceled)