| 摘要 |
PURPOSE:To suppress effectively the growth of a solidified shell generated at the terminal of a pouring inlet in the stage of casting continuously a molten steel into the space between cooled casting molds which face each other at a suitable space and move circumferentially in the same direction by bringing the molten steel into contact with a specific part. CONSTITUTION:For example, cooling rolls 1, 1 are rotated in an arrow direction and a molten steel 2 is supplied to frame bodies 3 of both rolls. A solidified layer 5 formed by said rolls is cast continuously to a steel plate 6. A solidified shell 12 is formed to grow on the inside surface of the bottom end part 3a of the frame body 3 and the shell 12 solidifies to connect the boundary 4 between the roll 1 and the body 3 in some case. If such sheel is left intact, shearing force is acted in the solidified and connected part by the revolution of the rolls 1 and in a worse case the body 3 is broken by the resultant flaw and crack therefrom. The flow of the molten steel is thereupon divided by the peak part of a guide body 20 in the state of supplying the molten metal from above into the body 3 so as to flow downward along the slope of said body to collide vigorously against the boundary 4. The shell 12 under growth is then quickly melted by a large amt. of continuous heating received to the high-velocity flow of the molten steel and the formation thereof is suppressed. |
