Kawasaki Steel Corporation

Asea Ab

Hisakazu Mizota

Shinji Kojima

Toshitane Matsukawa

Toshio Fujimura

Yasuharu Miyazaki

Masanori Kodama

Yoshio Yoshimoto

Nobuyoshi Takashiba

Kiyoshi Takahashi

Noriaki Inoue

Kouichi Kushida

Susumu Yuhara

Kunihiro Ito

Continuous forging apparatus for cast strand

A furnace bottom structure of a direct current electric furnace has at least one furnace bottom electrode and at least one gas injection tuyere provided in the furnace bottom refractory of the direct current electric furnace. Preferably, the furnace bottom electrodes and the gas injection tuyere are embedded in a substantially cylindrical refractory body with downwardly diverging tapered upper portion. The refractory body, the furnace bottom electrodes and the gas injection tuyere form an integral furnace bottom block which is detachably attached to the bottom of the electric furnace so as to close a bottom opening of the furnace.

Furnace bottom structure of direct current electric furnace

A method of continuous compression forging, with a compression forging anvil, the final solidified region of cast steel drawn out from a mold for continuously casting, comprising the step of: compressing said cast steel with said anvil at a compressing cycle which meets the following conditions: ##EQU1## where t: the compressing cycle (sec), .delta.: the overall thickness reduction, Vc: the casting speed (mm), D: the cast steel thickness before compression forging, .theta.: the inclination angle (.degree.) with respect to the flat surface of the anvil. An apparatus for continuous compression forging continuously cast steel comprising: at least a pair of anvils for vertically holding the pass line of cast steel drawn out from a mold for continuous casting and continuously compression-forging the final solidified region of the moving cast steel by moving the anvils toward and away from each other; a frame; a slider; and links, wherein either of said anvils is disposed within said frame which has a port through which said cast steel is introduced, another anvil is secured to said slider which can be reciprocated along a sliding surface formed in said frame, and said frame and said slider are hung from a crank shaft via said links, said crank shaft acting to move said anvils toward and away from each other.

Method and apparatus for continuous compression forging of continuously

Continuous caster including an electromagnetic stirring apparatus

Method of electromagnetic stirring a molten steel in a mold for a

An electromagnetic stirring mold for the manufacture of continuously cast bloom, which includes a copper plate constituting a water-cooling type mold, a backup frame, a mold frame and an electromagnetic stirrer. In this mold, water-cooling passages are defined between the copper plate and the backup frame and between the backup frame and the mold frame, respectively, which are communicated at their upper parts to water supply and discharge passages located in the upper part of the mold frame, whereby a mounting space for the electromagnetic stirrer is sufficiently formed down below the lower part of the mold frame.

Electromagnetic stirring mold for continuously cast blooms

Method of stirring molten steel in a continuously casting mold and an

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Okayama, Japan

Hisakazu Mizota