Toshiba Ceramics Co., Ltd.

Toshihiro Indoh

Shigeki Niwa

Etsuhiro Hasebe

Kazuo Itoh

Masamichi Asai

Hiroshi Hikima

Masahiko Uchita

Kohji Saitoh

Tamotsu Wakita

The present invention provides a recycle slide gate plate, said slide gate plate being connected to a lower portion of a molten metal container and used for sliding a plate to control a flow of molten metal drained from the molten metal container, comprising an upper plate and/or a lower plate obtained by polishing a sliding surface of a slide gate plate used at least one time, at a predetermined smoothness tolerance, a tubular ring fixed to a through hole obtained by cutting out a molten metal outlet portion of the upper plate and/or the lower plate having a projecting portion on a side opposite to a sliding surface of the upper plate and/or the lower plate, said projecting portion having a total height of a sum of a height dimension substantially equal to a height of a projecting portion of a new plate before use and a thickness dimension to be reduced by polishing out the sliding surface, the projecting portion being provided with a molten metal outlet hole formed inside the projecting portion, and a cushion plate fixed to a flat surface in a side opposite to the sliding surface of the upper plate and/or the lower plate, having a thickness necessary for making a thickness dimension of a flat surface reduced by polishing the upper plate and/or the lower plate be substantially equal to a thickness of the flat surface before polishing.

Recycled slide gate plate

A slide gate plate serving as a molten metal flow-rate control member for use in a molten metal discharging device, comprising an assembly of at least one stationary plate having a nozzle hole therein and a slide plate having a nozzle hole therein, the plates being designed so that one of the plates is thicker than the other plate by 1.5 mm or more. With this construction, the slide gate plate is reusable by polishing the sliding face off a worn plate for reuse.

Slide gate plate

Growing community of inventors

Nagoya, Japan

Toshihiro Indoh