Nippon Steel Corporation

Mitsubishi Heavy Industries Limited

Nippon Steel Sumitomo Metal Corporation

Keiji Tsunenari

Kazuto Yamamura

Takashi Arai

Keiichi Yamamoto

Masahiro Tani

Yasushi Kurisu

Kazutoshi Yokoo

Kenji Umetsu

Takehiko Toh

Ritsuo Hashimoto

Kunimasa Sasaki

Norimasa Yamasaki

Mamoru Yamada

Tadahiro Izu

Katsuyuki Isogami

Chihiro Yamaji

Katsumi Ando

Jyoji Yusa

Hiroshi Izaki

Tsuyoshi Tanaka

Katsuyoshi Miyake

Mitsuo Tani

Yasuo Maruki

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

The present invention: provides a mold for continuous casting that makes it possible to prevent insulation from deteriorating when continuous casting is carried out with electromagnetic force applied to and produce castings of good quality for a long period of time; and is a mold for continuous casting, said mold for continuous casting being equipped with a magnet coil that imposes electromagnetic force on molten metal in the direction perpendicular to the inner wall of said mold in the vicinity of the meniscus of said molten metal in said mold for continuous casting, a pair of the first sets each of which is formed by combining a first cooling copper plate with a first back plate, and another pair of the second sets each of which is formed by combining a second cooling copper plate with a second back plate, and being configured so that a pair of said first sets each of which is composed of a first cooling copper plate and a first back plate are movably interposed between a pair of said second sets each of which is composed of a second cooling copper plate and a second back plates, characterized in that said first cooling copper plates of a pair of said first sets are interposed between said second cooling copper plate of a pair of said second sets in the state of being not electrically insulated from, but being electrically connected with, each other.

Mold for continuous casting

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

Growing community of inventors

Futtsu, Japan

Keiji Tsunenari