Mitsubishi Materials Corporation

Mitsubishi Materials Electronic Chemicals Co., Ltd.

Japan Electric Metals Corporation, Limited

Kouji Tsuzukihashi

Saburo Wakita

Junichi Sasaki

Saburou Wakita

Hiroshi Ikeda

Atsuo Yanagimachi

Yuuji Ishiwari

This metallic silicon is manufactured by refining molten crude metallic silicon by unidirectional solidification, and has a purity of 3N or more to 6N or less and an average crystal grain diameter of 1 mm or more. This method for manufacturing the metallic silicon includes: solidifying molten crude metallic silicon in a mold which contains fine silica particles in an inner peripheral layer thereof by unidirectional solidification at a rate of 1 mm/min or less; and then cooling to 200&#xb0; C. or below at a rate of 2&#xb0; C./min or less.

Metallic silicon and method for manufacturing the same

A casting apparatus including a die that contains a molten metal that is poured via an opening section disposed above the die. The casting apparatus also includes a heater disposed above the die, and a gas supplying structure for supplying an inter gas to a surface of the molten metal. The casting apparatus further includes a lid disposed between the surface of the molten metal and the heater, and a lid moving structure for moving the lid to the die relatively so as to control the opening amount of the opening section above the die.

Casting apparatus and method therefor

Growing community of inventors

Akita, Japan

Kouji Tsuzukihashi