Nippon Steel Corporation

Hirobumi Maede

Ryuji Watanabe

Masami Wajima

Einao Anzai

Yoshitaro Ujiie

Mitsugi Okazaki

Yoshimitsu Kashiwakura

A method of manufacturing strips, bars and wire rods comprises continuously supplying molten metal into an open-top endless casting groove on an annular mold that is rotated around a vertical shaft, cooling the molten metal in the casting groove from outside by forcibly cooling the annular mold, and continuously taking out the cast section from the casting groove at a point where a solidified shell has been formed throughout the entire circumference of the molten metal in the casting groove. A roll is provided upstream of the take-out point to depress the top surface of the cast section, thereby keeping the cast section in close contact with the surface of the casting groove. The cast section then slides diagonally upward over a surface inclined at an angle of 5 to 60 degrees that is provided on the exit side of the above roll in the casting groove. The annular mold may also have two or more concentrically disposed casting grooves to permit multi-strand casting of molten metal poured into the individual casting grooves. A multiple of sections thus simultaneously cast are then simultaneously rolled into finished products.

Apparatus for making strips, bars and wire rods

Method and apparatus for making strips, bars and wire rods

A method and a device for electromagnetic stirring in a double casting type continuous steel casting apparatus using a pair of linear motor type electromagnetic stirring units opposing to each other, which are arranged in front and in rear of a plurality of cast steel pieces in such a way as to straddle them. The magnetic poles of these stirring units are caused either to move in the same direction in a reciprocal motion, for example, from the left to the right and vice versa or to circulate in the same direction from one of the opposed unit to the other.

Electromagnetic stirring method and device for double casting type

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Muroran, Japan

Hirobumi Maede