Nippon Steel Corporation

Mitsubishi Heavy Industries Limited

Nippon Steel Sumitomo Metal Corporation

Kazuto Yamamura

Hiroshi Fukuchi

Takashi Arai

Keiichi Yamamoto

Masafumi Miyazaki

Takeshi Kawachi

Hiroshi Uematsu

Yasushi Kurisu

Hiroyuki Mitake

Norimasa Yamasaki

Yoshiaki Shia

Tetsuo Shima

Yuuichi Ishimori

Mamoru Yamada

Keiji Tsunenari

Kazutoshi Yokoo

Hideki Oka

Ritsuo Hashimoto

Kunimasa Sasaki

Masahiro Doki

Tadahiro Izu

Yoshiaki Kimura

Katsuyuki Isogami

Teruo Kawabata

Junichi Kinoshita

Tsuyoshi Tanaka

Hiroshi Izaki

Katsuhiro Imanaga

Katsuyoshi Miyake

Jyoji Yusa

Katsumi Ando

Chihiro Yamaji

Mitsuo Tani

Yoshiaki Nakashima

A metal plate material hot molding apparatus is provided for press molding a heated metal plate material. The apparatus may include supply piping for a cooling medium in a mold, and ejection holes penetrating from a molding surface of the mold to the supply piping. The exemplary apparatus may also include discharge piping for the cooling medium situated in the mold, and discharge holes penetrating from the molding surface of the mold to the discharge piping, and cooling piping. Molding procedure can be performed while the cooling medium is ejected from the ejection holes to a gap between the metal plate material and the mold.

Metal plate material hot press molding apparatus and hot press molding method

Apparatus for hot press-forming metal plate material

A twin-drum continuous casting apparatus for casting a metal sheet () by supplying molten metal () to a pouring basin formed by a pair of cooling drums () rotating in opposite directions, and side gates (), to cool the molten metal () by contact with surfaces of the cooling drums (), thereby forming a solidified shell. The cooling drum () is formed from a drum body () having shaft portions at opposite end portions, and a drum sleeve () fitted on an outer peripheral portion of the drum body (). Also, means is provided for preventing various adverse influences due to differences in thermal expansion of constituent members of the drum body () during casting. Thus, the reliability of the apparatus is increased, and the quality of casting is improved.

Dual drum type continuous casting device and method for continuous casting

A transferred plasma heating anode for heating a molten metal in a container by applying Ar plasma generated by passing a direct current through the molten metal, the transferred plasma heating anode comprising; an anode, composed of a conductive metal, that has an internal cooling structure, a metal protector having an internal cooling structure that is placed outside the anode with a constant gap between the anode and the protector, and a gas supply means that supplies an Ar-containing gas to the gap, is characterized by the central portion on the external surface of the anode tip end being inwardly recessed.

Transfer type plasma heating anode

A cooling drum for a twin-drum continuous casting machine is capable of ensuring an excellent drum body interior cooling effect and advantageously overcoming both the problem of wear of the cooling drum end portions that are pressure-contacted with, and slide on, the side dams and the problem of their local deformation, and that, as a result, can ensure long-term maintenance of a suitable pressure-contact sliding state between the side dams and the cooling drum so as to enable stable continuous casting over a prolonged period. The cooling drum comprises a drum body portion of a material having a thermal conductivity of 100-400 W/mK and drum end portions part or all of whose portions in pressure-contact with the side dams and/or part or all of whose inner regions are formed of a reinforcing material that is a high-hardness material having a Vickers hardness HV (250 g) of 300-600.

Cooling drum for twin-drum continuous casting machine

Thin cast strip formed of molten steel, process for its production, and

Growing community of inventors

Chiba, Japan

Kazuto Yamamura