Nippon Steel Corporation

Mitsubishi Heavy Industries Limited

Mamoru Yamada

Tadahiro Izu

Takashi Arai

Masafumi Miyazaki

Hideki Oka

Eiichiro Ishimaru

Hideaki Yamamura

Eiichi Takeuchi

Yasushi Kurisu

Naoya Hamada

Kazuto Yamamura

Isao Suichi

Kazumi Seki

Mitsuru Nakayama

Yasuo Maruki

Keiichi Yamamoto

Kazutoshi Yokoo

Ritsuo Hashimoto

Kunimasa Sasaki

Masazumi Hirai

Shigeaki Ogibayashi

Keiji Tsunenari

Katsuyuki Isogami

Makoto Tezuka

Mitsuo Tani

Jyoji Yusa

Katsuyoshi Miyake

Tsuyoshi Tanaka

Hiroshi Izaki

Tatsuo Mukai

In a method of manufacturing a plurality of coil-shaped thin cast strips while molten metal r is being supplied to the molten metal poolformed by a pair of cooling drumsand a pair of side dams, when a casting operation corresponding to one coil of the coil-shaped thin cast strip has been completed, gas is made to blow from the gas nozzlestoward the scum s floating on the molten metal, so that the scum s drifts, due to the gas flow to one meniscus m, and the thus drifted scum is attached to a surface of the cast strip and circumferential faces of the cooling drums and is then discharged from the molten metal pool.

Continuous casting method for manufacturing thin cast strips and continuous casting machine

A cooling drum for metal cast strip by continuous casting has dimples 40 to 200 &#x3bc;m in average depth and 0.5 to 3 mm in diameter of circle equivalent formed on a plated peripheral surface of the cooling drum, adjacent to each other at rims of the dimples; and a film, containing oxides of at least one member selected from the group consisting of Ni&#x2014;W, Ni&#x2014;Co&#x2014;W, Cr, Ni&#x2014;Fe and Ni&#x2014;Al, is formed on the peripheral surface.

Cooling drum for thin slab continuous casting, processing method and apparatus thereof, and thin slab and continuous casting method thereof

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

Dimples, preferably 40 to 200 &#x3bc;m in average depth and 0.5 to 3 mm in diameter of circle equivalent, are formed on the peripheral surface of a cooling drum, adjacent to each other at the rims of the dimples; and fine humps (preferably, fine humps 1 to 50 &#x3bc;m in height and 5 to 200 &#x3bc;m in diameter of circle equivalent on the surfaces of the dimples and/or fine humps 1 to 50 &#x3bc;m in height and 30 to 200 &#x3bc;m in diameter of circle equivalent at the rims of the dimples), fine holes (preferably, fine holes 5 &#x3bc;m or more in depth and 10 to 200 &#x3bc;m in diameter of circle equivalent), or fine unevenness (preferably, fine unevenness 1 to 50 &#x3bc;m in average depth and 10 to 200 &#x3bc;m in diameter of circle equivalent) are formed at the rims and/or on the indented surfaces of said dimples.

Cooling drum for continuously casting thin cast piece and fabricating method and device therefor and thin cast piece and continuous casting method therefor

Continuous casting method manufacturing thin cast strips and continuous casting machine

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

A method of the continuous casting of molten metal by continuously withdrawing a strand is disclosed. The method is characterized in that the thickness of the strand is continuously reduced at a rate of 0.5 mm/min to less than 2.5 mm/min in the region between the point of time when the center of the strand has a temperature corresponding to a solid-phase ratio being within the range of 0.1 to 0.3 and the point of time when said temperature has dropped to a level corresponding to the solid-phase ratio at the limit of fluidization, while substantially no reduction in thickness is effected in the region between the point of time when the center of the strand has a temperature corresponding to the solid-phase ratio at the limit of fluidization and the point of time when said temperature has dropped to the solidus line.

Continuous casting method

Growing community of inventors

Hikari, Japan

Mamoru Yamada