Research Institute of Industrial Science & Technology

Pohang Iron & Steel Co. Ltd.

Moon Chul Kim

Jae Sin Park

Jong Min Park

Dong Kyun Choo

Gyu Chang Lee

Good-Sun Choi

Wung Yong Choo

Young Il Kim

Dae Kyu Park

Kil Won Cho

Gilsoo Han

Jin Kyung Sung

Byoung Mu Do

Disclosed is a thermal reduction apparatus. The thermal reduction apparatus according to the exemplary embodiment includes: a preheating unit which preheats a to-be-reduced material and loads the to-be-reduced material into a reducing unit; the reducing unit which is connected to the preheating unit and in which a thermal reduction reaction of the to-be-reduced material occurs; a cooling unit which is connected to the reducing unit and from which the to-be-reduced material flowing into the cooling unit is unloaded to the outside; a gate device which is installed between the preheating unit and the reducing unit; a gate device which is installed between the reducing unit and the cooling unit; a condensing device which is connected to the reducing unit and condenses a metal vapor; a first blocking unit which is installed in the reducing unit; and a second blocking unit which is installed in the reducing unit so as to be spaced apart from the first blocking unit.

Thermal reduction apparatus for metal production, gate device, condensing system, and control method thereof

A method for manufacturing a soft magnetic steel sheet is disclosed. The silicon steel sheet is made to undergo a finish treatment so that it can be put to the practical use. The finish treatment method for an Fe-Si silicon steel sheet manufactured by a direct casting method by directly contacting a molten pool to a cooling roll according to the present invention includes the step of pickling the manufactured Fe-Si silicon steel sheet, and carrying out a cold rolling. Then the silicon steel sheet thus cold-rolled is heat-treated at a temperature above 0.5 Tm (Tm: melting temperature of the steel sheet).

Finish treatment method and silicon steel sheet manufactured by direct

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Seoul, South Korea

Moon Chul Kim