Nippon Steel Corporation

Kawasaki Jukogyo Kabushiki Kaisha

Mitsubishi Jukogyo Kabushiki Kaisha

Shogo Matsumura

Hidemaro Takeuchi

Toshihiro Kosuge

Haruo Ohguro

Ryuuzou Hanzawa

Keiichi Yamamoto

Hideo Kaneko

Hideki Oka

Hiroyuki Nakashima

Kunimasa Sasaki

Takashi Furuya

Hatsuyoshi Kumashiro

Yasuo Itoh

Akio Kasama

Youji Ao

Tsutomu Fujii

Hiroyuki Kawai

Motoya Fujii

Yukio Morimoto

Katsuhiko Kawamoto

Hiroshi Iwasaki

Yasunobu Ikehara

Harumi Tsuboi

Masao Yamamiya

Tsuyoshi Saeki

Ryoichi Hidaka

Seishiro Saita

Tatsuhito Matsushima

Masayuki Inoue

A continuous casting apparatus comprises continuously supplying molten metal from a tundish to a cooled mold having an inlet and an outlet at least through a break ring, forming a cast section by continuously cooling the molten metal in the mold and starting the solidification of the molten metal below its surface, and intermittently withdrawing the cast section with respect to the mold through its outlet. During continuous casting, a sealing gas having a pressure higher than atmospheric and being soluble in the molten metal is invariable supplied to the entirety of the contact area of the mold and the break ring.

Apparatus for continuous casting

A continuous casting method includes the steps of continuously supplying molten metal into a mold through at least one feed nozzle connected to the mold through a break ring, with the feed nozzle, the mold and the break ring forming at least a portion of a continuous casting apparatus, and intermittently withdrawing a cast piece formed from the molten metal in the mold thereby creating pressure in a space formed at a connecting point between the break ring, the mold and the cast piece as a result of the withdrawal from the mold. A shield means is placed to seal-off space between the at least one feed nozzle, and the mold to prevent entry of gas into the continuous casting apparatus and the pressure is reduced in the sealed-off space to thereby eliminate a pressure differential between the pressure in the sealed-off space and the pressure created in the space formed at the connecting point between the break ring, the mold and the cast piece during the intermittent withdrawal from the mold.

Horizontal continuous casting method and apparatus

Molten metal is supplied to a pouring basin formed between cooling members, such as movable cooling drums. A closed space is formed at a meniscus area whereat any one of the cooling members starts to come into contact with the molten metal, and a soluble gas or a mixture of soluble and insoluble gases is supplied to and filled in the closed space, thereby covering the meniscus area with the gas or the mixture. This arrangement enables a continuous casting of a thin metal sheet without surface cracks and having excellent surface characteristics.

Apparatus of continuously casting a metal sheet

A continuous cast method comprises continuously supplying molten metal from a tundish through a break ring to a cooled mold having an inlet and an outlet. A cast section is formed by continuously cooling the molten metal in the mold and starting the solidification of the molten metal below its surface and intermittently withdrawing the cast section with respect to the mold through its outlet. During continuous casting, a sealing gas having a pressure higher than atmospheric and soluble in the molten metal is constantly supplied to the entirety of the contact area of the mold and the break ring.

Method and apparatus for continuous casting

Method and apparatus of continuously casting a metal sheet

A method of continuously casting lead-bearing steel by adding lead to steel melt in a tundish. The tundish is divided into a plurality of chambers including a melt receiving chamber and an immersed nozzle chamber, lead is supplied to the molten steel in a chamber other than the immersed nozzle chamber so as to form a lead sediment layer at the bottom thereof, and molten steel containing suspended Pb is passed to the immersed nozzle chamber from where it is poured into a mold of the continuous caster.

Method of continuously casting lead-bearing steel

Process for continuous casting of a steel slab free from surface defects, which comprises oscillating a mold under an oscillation condition which restricts the deformation of a meniscus portion of a strand shell so as to prevent oscillation defects.

Continuous casting of steel slabs and blooms free from surface defects

Growing community of inventors

Hikari, Japan

Shogo Matsumura