Nippon Steel Corporation

Kawasaki Jukogyo Kabushiki Kaisha

Kawasaki Jukogyo Kabushiki

Shinichi Sugiyama

Hajime Hirakawa

Kazuyuki Akimoto

Sadaaki Murakawa

Taizo Tsutsui

Shigemi Okada

Hideo Kaneko

Hiroyuki Nakashima

Hatsuyoshi Kumashiro

Hiroshi Iwasaki

Yoji Ao

Taizou Kiyosuke

Kazuaki Sueoka

Yoshikazu Nishi

Makoto Ueda

Toshio Iida

Kenichi Murai

Taizo Tsutusi

Provided are a method for moving a multipurpose field and an apparatus for the same wherein the multipurpose field can be caused to float above a basic floor plate under a fluid pressure and can be moved and placed in a desired position by delivery means. The moving apparatus comprises a nozzle provided over a basic floor plate common to a field region of a roofed stadium and an outdoor region for detecting existence of the multipurpose field and for jetting a fluid upward in response to a detection signal, and delivery means for alternately moving the multipurpose field between both the regions.

Multipurpose field moving method and apparatus

In a method and apparatus for withdrawing a strand in a horizontal continuous casting installation, the strand is withdrawn from a mold by a predetermined stroke and then retracted by a smaller stroke corresponding to shrinkage of the strand. This cycle of withdrawal and retraction is repeated intermittently. A strand withdrawing and retracting characteristic of a cycle is set in a control unit, and pinch rolls for withdrawing and retracting the strand are controlled based on the set characteristic. Actual withdrawing and retracting strokes of the strand are detected by a detecting device and the detected signal is compared with the set characteristic to produce an instruction signal which is fed back to the pinch rolls, so that the positional accuracy of the strand and the quality of the strand are improved.

Method of and apparatus for withdrawing strand in horizontal continuous

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Kobe, Japan

Sadaaki Murakawa