Nippon Steel Corporation

Yasuo Maruki

Masafumi Miyazaki

Eiichiro Ishimaru

Hideaki Yamamura

Eiichi Takeuchi

Yasushi Kurisu

Naoya Hamada

Hideki Oka

Mamoru Yamada

Tadahiro Izu

Isao Suichi

Kazumi Seki

Mitsuru Nakayama

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

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

Growing community of inventors

Futtsu, Japan

Yasuo Maruki