Continuous casting apparatus for metal and continuous casting method

Abstract

A continuous casting apparatus for metal is provided. A refrigerant is ejected from ejection ports arranged on an outer side of an outer periphery of an ingot to cool the ingot that continuously passes through a mold and solidifies. When an axis connecting the ejection port and an axis of the ingot is denoted as a projection reference axis as viewed in a direction of the axis of the ingot, the ejection port is configured such that an ejection direction of the refrigerant ejected from the ejection port is inclined in one direction with reference to the projection reference axis so that the ejection direction of the refrigerant do not intersect with the axis of the ingot.

1 . A continuous casting apparatus for metal, comprising:
 a mold through which an ingot is continuously passed to be solidified; and   at least one ejection port arranged on an outer side of an outer periphery of the ingot passed through the mold and configured to eject a refrigerant to cool the ingot,   wherein when an axis connecting the ejection port and an axis of the ingot is denoted as a projection reference axis as viewed in a direction of the axis of the ingot, the ejection port is configured such that an ejection direction of the refrigerant ejected from the ejection port is inclined in one direction with reference to the projection reference axis so that the ejection direction of the refrigerant do not intersect with the axis of the ingot.   
     
     
         2 . The continuous casting apparatus for metal as recited in  claim 1 ,
 wherein the at least one ejection port includes a plurality of ejection ports arranged at predetermined intervals along the outer periphery of the ingot, and   wherein when an angle at which the ejection direction of the refrigerant is inclined with reference to the projection reference axis is denoted as an ejection angle, all the ejection angles of the refrigerants ejected from of the plurality of ejection ports are set to be equal.   
     
     
         3 . The continuous casting apparatus for metal as recited in  claim 1 ,
 wherein the at least one ejection port includes a plurality of ejection ports arranged at predetermined intervals along the outer periphery of the ingot, and   when an angle at which the ejection direction of the refrigerant with reference to the projection reference axis is inclined is denoted as an ejection angle, the ejection angles of the refrigerants ejected from the plurality of ejection ports include at least two or more different ejection angles.   
     
     
         4 . The continuous casting apparatus for metal as recited in  claim 1 ,
 wherein the metal is aluminum.   
     
     
         5 . The continuous casting apparatus for metal as recited in  claim 1 ,
 wherein the refrigerant is cooling water.   
     
     
         6 . The continuous casting apparatus for metal as recited in  claim 1 ,
 wherein the continuous casting apparatus is a vertical type continuous casting apparatus configured such that a casting direction is in a vertically downward direction.   
     
     
         7 . The continuous casting apparatus for metal as recited in  claim 1 ,
 wherein the continuous casting apparatus is a horizontal type continuous casting apparatus configured such that a casting direction is a horizontal direction.   
     
     
         8 . A continuous casting method for metal, comprising:
 continuously casting an ingot with a mold; and   ejecting a refrigerant from an ejection port arranged on outer side of an outer periphery of the ingot passed through the mold to cool the ingot,   wherein when an axis connecting the ejection port and an axis of the ingot is denoted as a projection reference axis as viewed in a direction of an axis of the ingot, the ejection port is configured such that an ejection direction of the refrigerant ejected from the ejection port is inclined in one direction with reference to the projection reference axis so that the ejection direction of the refrigerant do not intersect with the axis of the ingot.