Up-drawing continuous casting apparatus and up-drawing continuous casting method

Abstract

An up-drawing continuous casting apparatus includes a holding furnace which holds molten metal, a guide-out member which guides the molten metal out from a surface of the molten metal held in the holding furnace, a shape determining member which is arranged to adjoin the surface of the molten metal and allows the molten metal guided out by the guide-out member to pass through the shape determining member to define a shape of a cross section of a casting, a cooling portion which cools the molten metal after the molten metal passes through the shape determining member, and an impact imparting portion which imparts an impact to the guide-out member or the casting.

1 . An up-drawing continuous casting apparatus comprising:
 a holding furnace which holds molten metal;   a guide-out member which guides the molten metal out from a surface of the molten metal held in the holding furnace;   a shape determining member which is arranged to adjoin the surface of the molten metal and allows the molten metal guided out by the guide-out member to pass through the shape determining member to define a shape of a cross section of a casting;   a cooling portion which cools the molten metal after the molten metal passes through the shape determining member; and   an impact imparting portion which imparts an impact to the guide-out member or the casting.   
     
     
         2 . The up-drawing continuous casting apparatus according to  claim 1 ,
 wherein the impact imparting portion imparts an impact to the guide-out member or the casting by striking the guide-out member or the casting with a metal rod.   
     
     
         3 . The up-drawing continuous casting apparatus according to  claim 1 ,
 wherein the impact imparting portion moves along a moving path of the guide-out member.   
     
     
         4 . The up-drawing continuous casting apparatus according to  claim 1 ,
 wherein the impact imparting portion is an oscillator.   
     
     
         5 . The up-drawing continuous casting apparatus according to  claim 4 ,
 wherein the impact imparting portion is fixed to the guide-out member while contacting with the guide-out member.   
     
     
         6 . An up-drawing continuous casting method using a casting apparatus including:
 a guide-out member which guides molten metal out;   a shape determining member which defines a shape of a cross section of a casting; and   an impact imparting portion which imparts an impact to the guide-out member or the casting,   the method comprising;   guiding the molten metal out by the guide-out member to allow the molten metal to pass through the shape determining member,   cooling the molten metal after passing through the shape determining member; and   imparting an impact to the guide-out member or the casting by the impact imparting portion.   
     
     
         7 . The up-drawing continuous casting apparatus according to  claim 6 ,
 wherein imparting an impact to the guide-out member of the casting is carried out by striking the guide-out member or the casting with a metal rod by the impact imparting portion.   
     
     
         8 . The up-drawing continuous casting method according to  claim 6  further comprising;
 moving the impact imparting portion along a moving path of the guide-out member. 
 
     
     
         9 . The up-drawing continuous casting method according to  claim 6 ,
 wherein the impact imparting portion is an oscillator.   
     
     
         10 . The up-drawing continuous casting method according to  claim 9 ,
 wherein the impact imparting portion is fixed to the guide-out member while contacting with the guide-out member.