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Class 222/603 - Gaseous fluid engages molten metal


Subclass of Class 222 - Dispensing
Definition: Apparatus in which a gas is introduced at, about or downstream
No. of patents: 156
Last issue date: 11/15/2011


1        
NumberTitleIssue Date
8056776Refractory pouring tube with porous insert
The invention generally relates to a refractory pouring tube for pouring a molten metal from one metallurgical vessel to another metallurgical vessel. The invention as well relates to a corresponding assembly, comprising such a pouring tube. ...
11/15/2011
7669739Rotary stirring device for treating molten metal
The invention relates to a rotary device for dispersing a gas in a molten metal. The device comprises a hollow shaft at one end of which is attached a rotor. The rotor has a roof and a base which are spaced apart and connected by a plurality of vanes. A compartment ...
03/02/2010
7198181Stopper for reliable gas injection
The present invention concerns a mono-block stopper adapted to deliver gas during pouring of molten metal comprising a stopper body having an internal chamber (1) and a gas discharge port (2), a bore (3) connecting the internal chamber (1...
04/03/2007
7172013Binding structure of refractory sleeve for inner hole of nozzle for continuous casting
A bonding structure between a nozzle body of a continuous casting nozzle and a refractory sleeve inserted into the nozzle body, wherein the refractory sleeve contains 20 mass % or more of CaO. An adhesive including a mixture of a refractory aggregate and a binder is...
02/06/2007
7028868Refractory nozzle
A refractory nozzle is provided for arrangement in or on a wall of a metallurgical crucible, particularly for steel melts, having a discharge duct surrounding a flow passage, wherein the discharge duct has a surface delimiting the flow passage and an outer housing. ...
04/18/2006
6951296Method and device for preventing slag from flowing along when tapping a molten metal
The invention relates to a device for preventing slag from flowing along when tapping a molten metal out of a metallurgical vessel, whereby the tap opening of the vessel is formed out of interchangeable pipes, which are located one above the other, made of wear-resi...
10/04/2005
6913841Method and apparatus for producing iron article and product
Liquid aluminum is sprayed onto an iron article to produce a thin tenacious non-corrodible layer. In one embodiment, an iron article is heated to at least 400° F. or preferably until cherry red. It is sprayed with a fine aluminum mist generated by heating aluminum ...
07/05/2005
6893607Elevated discharge gas lift bubble pump and furnace for use therewith
A metal melting closed furnace which includes a main chamber, a circulation well connected to the main chamber by a communications passageway and a vortex well having a exit outlet for molten metal into the main chamber. A cover is emplaced over the vortex well. An ...
05/17/2005
6797230Gas stopper brick for metallurgical vessels with a sealing body that is subject to screw pressure springs
This invention relates to a gas bubbler stone for metallurgical vessels having a porous, gas-permeable molded stone (1) made of a refractory material, a partial sheathing enclosing it in a gastight manner, the sheathing being made of a metal casing (2)...
09/28/2004
6773246Atomizing apparatus and process
An atomizing apparatus for the production of powders or spray deposits, having an atomization device for receiving a liquid stream of molten metal or metal alloy to be atomized; at least two primary atomization gas jets for directing an atomization gas at an angle i...
08/10/2004
6688494Process for the manufacture of metal nanoparticle
A process and apparatus prepares and collects metal nanoparticles by forming a vapor of a metal that is solid at room temperature, the vapor of the metal being provided in an inert gaseous carrying medium. At least some of the metal is solidified within t...
02/10/2004
6669896Purge plug
A purge plug adapted to be replaceably attached to the bottom of a lable for purging gas through a heat in the ladle. The purge plug comprises a ceramic body having at least one through gap which extends between the end faces of the body and a casing whic...
12/30/2003
6660220Apparatus and method for delivering an inert gas to prevent plugging in a slide gate
The invention is directed to a dynamic control system that maintains an inert gas feed at a constant target gas flow rate sufficient to prevent or reduce alumina or alloy plugging within a slide gate discharge opening. The dynamic control system includes ...
12/09/2003
6511751Stopper rod
The invention concerns a stopper rod with a cylindrical stopper rod body comprising a fire-resistant, carbon-containing material, having a base part and a nose-like section made of a different fire-resistant material than the base part, whereby an interfa...
01/28/2003
6491190Permeable refractory nozzle and manufacturing method
A permeable nozzle is made from MgO and MgO--Al2 O3 spinel and has a nonservice backpressure of about 0.5-50 psi at gas flowrates of about 5-20 liters/minute. In one embodiment, the permeable nozzle comprises about 50%-80% of about a...
12/10/2002
6464154Casting nozzle with diamond-back internal geometry and multi-part casting nozzle with varying effective discharge angles and method for flowing liquid metal through same
A method and apparatus for flowing liquid metal through a casting nozzle includes an elongated bore having at least one entry port, at least one upper exit port, and at least one lower exit port. A baffle is positioned proximate to the upper exit port to ...
10/15/2002
6450376Refractory assemblies
The invention relates to a set of refractory assemblies, which is capable of being used between an upstream container and a downstream container of a plant for transferring liquid metal, in particular steel, comprising: a tapping spout via which the metal...
09/17/2002
6435396Print head for ejecting liquid droplets
An embodiment of the present invention includes a disposable print head for ejecting controlled amounts of liquid (e.g., solder) at a high rate onto the surface (e.g., an integrated circuit) in close proximity to the ejecting source. The embodiment involv...
08/20/2002
6334975Molten magnesium supply system
A molten metal transfer pipe 52 for transferring an injection sleeve 51 has a bent pipe portion 3 thereof reduced in diameter to provide a throttle part 4 attaining a pressure loss effect. A melting and holding furnace 101 with a tilting mechanism has a m...
01/01/2002
6250521Preventing air aspiration in slide gate plate throttling mechanisms
A slide gate plate throttling mechanism for the continuous casting of molten metal includes a gate plate assembly. The gate plate assembly is connected to an upper nozzle disposed below a vessel for containing molten metal and is disposed above an elongat...
06/26/2001
6250520Plant for transferring liquid metal, method of operation, and refractories
The invention relates to a plant for transferring liquid metal, in particular steel, between an upstream container (2) and a downstream container (10), comprising: an upstream container (2); a tapping spout (28); a downstream container (10), a flow regula...
06/26/2001
6068812Inert gas bubble-actuated molten metal pump with gas-diffusion grid
An inert gas bubble-actuated molten metal pump, for the movement of molten metal in a molten-metal bath, which obviates the necessity of a heatproof and flameproof cover to counteract splashing and spattering at the surface of the molten metal bath above ...
05/30/2000
6016940Process for casting molten metal in a conduit comprising at least two refractory parts
A process in which, during the flow of molten metal in a conduit an inert gas and oil are injected at the position of the joint plane between two refractory parts in such a manner as to prevent the introduction of gases from the atmosphere into this condu...
01/25/2000
5967220Caster including a gas delivery means to resist backflowing and freezing of molten metal to the tip of a nozzle
A caster including a device for delivering a gas into a space created by the apparatus that define the mold of the caster and the nozzle of the caster. Introducing a gas into the space resists backflowing and freezing of the molten metal to the nozzle....
10/19/1999
5958279Refractory slide-gate plate
A refractory slide-gate plate including a refractory base plate which is designed in a ring shape or so as to have a recess portion on a surface thereof, a refractory plate member which is fixedly engaged with the inside of the ring-shaped refractory base...
09/28/1999
5928556Refractory block for continuous casting
A refractory block for continuous casting comprising: a unitary assembly comprising: a plate brick having a top, a bottom, sides and a passageway therethrough, and a submerged nozzle having a top, a bottom, sides and a passageway therethrough, the sides o...
07/27/1999
5911946Snorkel for a degassing vessel
The present invention pertains to a snorkel for a degassing vessel, with a refractory lining and a gas-purging device arranged therein with a plurality of channels, which, distributed over the circumference of the snorkel, extend through the refractory li...
06/15/1999
5887647Decreasing contamination of molten metal prior to solidification casting
The invention provides continuously-cast product free of ambient atmosphere contaminants and free of nonmetal solid entrapment. Methods and apparatus are provided for flow of molten metal from ladle to tundish to mold machine, free of contact with ambient...
03/30/1999
5885473Long nozzle for continuous casting
The present invention relates to a long nozzle used to prevent molten steel flowing out of a collector nozzle of a sliding nozzle from being oxidized by atmospheric air when molten metal, particularly molten steel is poured from a ladle into a tundish. Th...
03/23/1999
5853658Gas purging device in the blowpipe of a degassing vessel
A gas flushing device for a blowpipe of a degassing vessel, the blowpipe being cladded with a fire resistant material. The gas flushing device has a plurality of channels which are distributed around the circumference of the blowpipe and pass through the ...
12/29/1998
5846479Apparatus for de-gassing molten metal
Argon injection nozzles are provided in a close-spaced series lengthwise along a treatment trough, in which liquid aluminum is conveyed. The gas is blown in at high Reynolds No, whereby the jets break up into small bubbles. A high average bubble populatio...
12/08/1998
5820652Sealing system for the engagement of a container beneath a melting furnace
A sealing system for the engagement of a container (24) beneath a melting pot containing a molten material, comprising a shell (30) surrounding a nozzle (40), the nozzle being located in the axis of the neck of the container and permitting the pouring of ...
10/13/1998
5744050Nozzle
The present invention provides a nozzle for teeming molten metal, particularly molten steel, from a tundish or other receptacle, which nozzle comprises an inlet, an outlet, and inner and outer tubular members which define a bore through the nozzle between...
04/28/1998
5723055Nozzle assembly having inert gas distributor
A refractory nozzle assembly is provided that effectively prevents the accumulation of alumina deposits around its upper edge where it receives a stopper rod. The nozzle assembly includes a refractory nozzle body having an upper and a lower portion. A bor...
03/03/1998
5686008Closure and regulation apparatus for a metallurgical vessel
A closure and/or regulation apparatus for controlling the outflow of melt from a metallurgical vessel includes a stator and a rotor rotatable relative to the stator. Additional responsive control of outflow is provided by a chamber that is part of or is c...
11/11/1997
5683652Process for reducing dust emissions of a blast furnace
A process for reducing dust emission and free air access in the tapping region of a blast furnace by applying CO2 in a solid and/or gaseous state to the molten material and or the runners and vessels associated therewith. This process reduces d...
11/04/1997
5676195Method of and apparatus for limiting ingress of gas to incipient continuous cast slabs
Ingress of gas such as air through the joint of a pour tube and tube holder of a continuous caster is prevented or inhibited by passing an inert gas into a circumferential channel around the orifice and at the interface of the joint; the gas is evenly dis...
10/14/1997
5670075Sealing gas delivery system for sliding joints
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 ca...
09/23/1997
5662725System and device for removing impurities from molten metal
A system and device for removing impurities from molten metal comprising a pump within a chamber having an outlet port. The pump creates a flow or stream of molten metal through the outlet port. One or more gas-release tubes are provided adjacent the outl...
09/02/1997
5650120Bubble-operated recirculating pump for metal bath
A bubble-operated pump for recirculating molten metal in a bath of such metal....
07/22/1997
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