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Ishikawajima-harima Heavy Industries Co., Ltd.

Ishikawajima-harima Jukogyo Kabushiki Kaisha

Kinichi Higuchi

Masaaki Yamamoto

Kazuyuki Sato

Heiji Kato

Yasuhiro Fujii

Satoshi Murata

Nobuhiro Tazoe

Hisashi Honjou

Isao Imai

Yoichi Motoyashiki

Sadakazu Masuda

Kenichi Ide

Toru Minote

Shinji Okazaki

Shigeki Narushima

Shigeki Narishima

Hajime Ishii

Yasushi Dodo

Shuichi Yamashina

Takumasa Terauchi

Mitsuhiko Ichikawa

Tsukasa Oyauchi

Masao Nitanda

Yuji Abe

Takaaki Mori

Kohei Hosoi

A high-quality hot rolled steel sheet is manufactured with a high production efficiency and a low cost, from a long, hot slab, using a combination of continuous casting facilities and a plate reduction press machine.

Apparatus and methods for manufacturing hot rolled steel sheets

The invention provides a continuous steel plate manufacturing facility including continuous casting equipment (12) having a plurality of strands, a plurality of rows of slab conveyers (14) disposed downstream of each of the strands, and a single slab transporting apparatus (16) disposed downstream of the slab conveyers for horizontally transporting slabs from the rows of slab conveyers to a single rolling line disposed downstream of the rows of slab conveyers. A continuous slab casting line defined by the strand and the slab conveyers diagonally intersects, at an intersection point, on the slab transporting apparatus with a slab feeding line (18) which is in communication with the rolling line. The slab transporting apparatus is horizontally swingable about the intersection point (19) between a receiving position A wherein the slab transporting apparatus is disposed on an extension of one of the continuous slab casting lines, and a feed-out position B wherein the slab transporting apparatus is disposed in alignment with the slab feeding line. The present invention provides advantages that slabs can be transported in a short period of time to the single rolling line through a plurality of the continuous casting apparatuses by using a relatively small-sized and small-powered facilities, and that the continuous steel plate manufacturing facility can be combined with three or more continuous casting apparatus.

Continuous steel plate manufacturing facilities

Longitudinal axial positions in a roll longitudinal axis of ring pistons fitted into a profile-variable rolling roll are detected with a higher degree of accuracy. In response to outputs representative of the detected longitudinal axial positions of the ring pistons, the positions of the ring pistons can be controlled with a high degree of accuracy, whereby controllability of shape of the rolling roll is enhanced.

Rolling roll with variable profile and of the tapered piston type

Growing community of inventors

Yokohama, Japan

Kinichi Higuchi