Toshiba Ceramics Co., Ltd.

Teruhisa Kawashima

Sadanobu Sugiura

Toshio Kawamura

Satoshi Oya

Kunishige Tokunaga

Koji Kawarada

Satoshi Ooya

A method for forming a nozzle employed in continuous casting is provided in which powder refractory materials are pressed with low hydrostatic pressure to produce preforms for an edge portion, an inner hole portion, and a powder line portion, these preforms are combined one after another in a rubber mold employing a mandrel while filling the rubber mold with a powdered refractory material for a body portion of the nozzle, and then a nozzle configuration is formed by pressing the rubber mold with a higher hydrostatic pressure than that used to produce the preforms.

Method for forming a nozzle employed in continuous casting

A nozzle device for discharging molten metal comprising a nozzle having a tapered portion whose outside diameter decreases toward the lower end, a metal holder mounted on the tapered portion and supporting the nozzle, and a ceramic receiving member whose inside surface is parallel with the surface of the tapered portion, the member provided between the tapered portion and the metal holder.

Nozzle device for discharging molten metal

A nozzle which is submerged in molten metal during steel casting comprises a nozzle body, a nozzle passage provided through the nozzle body such that a molten-metal-and-gas stream can be introduced into the nozzle body at a predetermined point, and at least one discharge port, wherein the discharge port is bordered by a projecting part that presents a surface that is inclined toward the introduction point for the metal/gas stream at a slanting angle, relative to the longitudinal axis of the nozzle body, that is greater than 0.degree.. The nozzle has a substantially prolonged service life.

Growing community of inventors

Kariya, Japan

Teruhisa Kawashima