National Research Institute for Metals

Takuya Ueda

Akira Fukuzawa

Akira Sato

Shiro Yoshimatsu

Ryuichi Nakagawa

Tatsuro Mitsui

Tsuyoshi Ozaki

Tsuyosho Ozaki

A direct-heat arc furnace for the production of molten iron by continuously melting and reducing directly reduced iron or directly reduced iron ore, which comprises electrodes fixed in position and a furnace body to be driven so that the relative position of arc spots at the tips of the electrodes and the surface of the molten material in the furnace move continuously, and in which the shape and moving path of the furnace body are such that the range of tapping port movement is minimized and the melting of the feed stock and the tapping of the molten iron are performed continuously.

Electric arc furnace for continuous melting of directly reduced iron or

A process for regenerating steel scrap by melting and refining it, the improvement wherein carbon is added to molten scrap steel melt in an amount sufficient to adjust the carbon content of the melt to 0.6 to 3.0%, and the scrap steel is refined by blowing oxygen therein. This method can also be applied to the production of steel from reduced iron.

Process for regenerating or producing steel from steel scrap or reduced

An induction melting furnace for melting metals or alloys including an auxiliary induction heating coil in a material charging part. The material charging part is additionally heated to promote dissolving of the material in molten metal.

Induction melting furnace

Growing community of inventors

Zushi, Japan

Takuya Ueda