Kawasaki Steel Corporation

Denka Consultant and Engineering Co., Ltd.

Yoshiro Tomiyama

Saburo Moriwaki

Noboru Yasukawa

Mitsuru Sakurai

Masayuki Onishi

Yuji Miki

Tetsuya Fujii

Kenichi Sorimachi

Toshikazu Sakuraya

Shuji Takeuchi

Fumio Sudo

Hirokazu Tozawa

Shuzo Fujii

Makoto Aratani

Shigeru Ogura

Hidenari Kitaoka

Hitoshi Morishita

Hideo Miwa

Takeshi Shiraishi

Yuki Nabeshima

Tsukasa Terashima

Yozo Tanino

Masaaki Yamanashi

System for removing non-metallic foreign matter in molten metal

One or more streams of molten metal poured into a continuous casting mold are acted on magnetically by static magnetic fields, covering substantially the entire width of the casting mold, thereby reducing the speed of the molten metal streams from the immersion nozzle, unifying the flow profile of the molten metal in the mold, preventing trapping and accumulating of mold powders and inclusions into the cast products. Magnetic poles are provided which are at least as wide as or wider than the minimum width of the cast products and the iron core is arranged on the same face of the casting mold with mutually opposite polarities in the drawing direction. Even if casting conditions change from time to time, defects in final products made of the cast metal are substantially reduced.

Apparatus and method for continuous casting

Disclosed herein is a flow change-over valve for the blowing of fluids into a molten metal vessel, which includes a housing provided with at least three inlet ports for different fluids and an outlet port, a valve body with a main passage communicating selectively between one of the inlet ports and the outlet port and rotatably supported in the housing to perform the changing-over of inlet passages. Among these inlet ports, an inlet port for purging fluid is opened in the housing, and a shroud-like gap surrounding the valve body is formed between the inner periphery of the housing and the outer periphery of the valve body in such a manner that it communicates with the inlet port for the purging fluid disposed in the housing and is always to be communicated with an opening of an inlet port of the main passage during the changing-over through the rotation of the valve body.

Flow change-over valve for the blowing of fluids into molten metal vessel

Growing community of inventors

Chiba, Japan

Yoshiro Tomiyama