Nippon Steel Corporation

Haruo Kitamura

Yuichi Kato

Kenzo Sawada

Masamitsu Wakoh

Katsuhiko Yui

Ryuichi Hiratsuka

Toshio Kikuchi

Masatsugu Uehara

Takashi Ishizawa

Junichi Kinoshita

Susumu Onoda

Tetsuo Nakamura

Daijiro Mizukoshi

A method of oscillating a continuous caster mold at high frequencies comprises disposing a plurality of oscillators having substantially the same oscillating characteristic at appropriate intervals along or in the vicinity of a line where liquid metal contacts an inner lining of a mold, connecting the tip of each oscillator to the inner lining so that the axis of the oscillator extends at right angles to the surface of the inner lining, and supplying power from an oscillation generator to each oscillator so that the oscillation frequencies of any two adjoining oscillators are differentiated within the limit of 2 KHz. Thus, any two adjoining oscillators oscillate the inner lining at right angles to the surface thereof at mutually differentiated frequencies.

Method of oscillating continuous casting mold at high frequencies and

An improved electromagnetic stirring unit is disclosed for use in continuous casting of steel in which the cooling unit which houses the electromagnetic stirring coil (6) comprises a cooling wall (9) for a direct contact with the molten steel (12), the cooling wall having at its inner side a plurality of cooling water passages (10,11) for evenly distributing the cooling water, a chamber (2) for housing the electromagnetic stirring coil disposed such that the upper end of the electromagnetic stirring coil is at the level of the molten steel surface in the casting mould; a water discharge chamber (4); and a water supply chamber (3) a side wall (7) of the coil housing chamber, opposite to the cooling wall, having an opening large enough to permit the electromagnetic stirring coil to pass therethrough; the electromagnetic stirring coil being attached to a readily removable cover (7') for this opening, whereby preventive maintenance of the coil is facilitated, FIG. 2.

Electromagnetic stirring unit for continuous steel casting mould

Growing community of inventors

Kitakyushu, Japan

Haruo Kitamura