Patent
Molten metal slide gate valve
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TLDR
In this article, a sliding gate valve is used to prevent the aspiration of air into the molten metal orifices during discharge of molten metal from a ladle or tundish.Abstract:
A molten metal slide gate valve for use on a ladle or tundish The slide gate valve uses a stationary upper plate having a groove formed in its lower face around the periphery of the plate The groove is connected to a source of a nonoxidizing gas under pressure to provide a gas seal around the molten metal orifices in the slide gate valve and prevent the aspiration of air into the molten metal orifices during discharge of the molten metal from the ladle or tundishread more
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Slide gate valve having a cementless joint between the valve and a metallurgical vessel
TL;DR: A slide gate valve with a cementless joint between the valve and a metallurgical vessel containing molten metal is provided for facilitating the replacement of worn refractory components in the valve as mentioned in this paper.
Patent
Refractory slide-gate plate
TL;DR: In this paper, a refractory slide-gate is designed in a ring shape or so as to have a recess portion on a surface thereof, and an inert gas supply groove comprising a step portion is formed in 2 to 20 mm width.
Patent
Nozzle and base plate apparatus and method for use in a tundish slide gate valve
TL;DR: In this article, a unitized nozzle and top plate assembly for use in a slide gate valve is disclosed which comprises a nozzle having porous, gas permeable walls, a top plate having an opening through its thickness for regulating a flow of molten metal such as steel, and a recess circumscribing the opening for receiving and securing the discharge end of the nozzle to the top plate.
Patent
Sealing gas delivery system for sliding joints
TL;DR: In the continuous casting of steel, gas is prevented or inhibited from contacting molten steel through the valve slide plate by feeding inert gas through channels in the slide plate and adjacent parts; the channels contain porous refractory inserts and can be connected to outside sources through juxtaposed side channels.
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Patent
Molten metal discharging device
Kazumi Arakawa,Masuo Sugie,Watanabe Takashi,Takumi Nishio,Toshio Kawamura,Tsutomu Nagahata,Takashi Matsushita +6 more
TL;DR: In this article, a sliding plate of refractory material slidable along a lower face of a stationary plate is adapted to open or close the passage bore by being displaced relative to the stationary plate.
Patent
Pouring of molten metals
Robert Duncan Hind,Hill Jeffrey +1 more
TL;DR: In this article, the sliding plate of a sliding gate valve has a mounting for a collector nozzle, and a nozzle is releasably coupled to the mounting by means of a releasable fastening.
Patent
Refractory plate for slide closures of metallurgical vessels
Jeschke P,Gelsdorf G +1 more
TL;DR: In this article, a moldable refractory concrete material is used for slide closures for metallurgical vessels, where a basic plate element adapted to face a liquid metal melt is formed.
Patent
Sliding gate having selectively operable gas line for porous plug
TL;DR: In this article, an operating mechanism for slidable gates which are used to control flow of liquid from a bottom-pour vessel, and a flow-controlling method are presented, particularly useful for controlling teeming of liquid steel from a tundish into a continuous-casting mold.
Patent
Slide closure plates and method for preventing melt penetration
TL;DR: In this article, a U-shaped channel is formed in the sliding surface of the bottom plate, and also if desired in the slide plate. Inert gas is supplied to the channel at a suitable pressure to prevent penetration of the metal melt into the space between the plates and the pores of the refractory material of the plates.