To prevent erosion and tear at corners to plates in contact with a molten steel, and prevent cracking, peeling, etc., at corners due to sliding friction of the plates.
In a sliding nozzle apparatus comprising at least a movable plate with a nozzle bore to flow-through the molten steel and an immovable plate adjoining to the movable one with a nozzle bore to flow through the molten steel, the sliding nozzle apparatus and molten steel flow control method are provided with the gist of the employment of plate(s) with chamfer on at least one or more corners such as the corners formed between the top surface and/or the bottom surface of the movable plate and the bore inside wall of the movable plate, and/or the corners formed between the top surface and/or the bottom surface of the immovable plate and the bore inside wall of the immovable plate adjoining to the movable plate.
TAKAGI ISAO
KOMINAMI TAKANORI
