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WO/1998/056524A1 |
Casting nozzle (2, 4) suitable for conveying molten metal from a first metallurgical vessel to a second metallurgical vessel such as from a ladle (1) to a tundish (3) or from a tundish (3) to a mould (5) in the case of casting molten ste...
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WO/1998/055250A1 |
The invention relates to a method for producing slabs having a thickness D of > 100 mm at casting speeds v < 3m/min. in a continuous casting installation, in which melt is fed to a casting die from a container by means of a submerged noz...
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WO/1998/053938A1 |
The invention relates to a submerged nozzle of a metallurgic vessel, said vessel being situated upstream of a continuous casting mould. Said submerged nozzle is configured as a single-piece unit and has a slit-shaped discharge opening in...
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WO/1998/052708A1 |
Filling sand for an apparatus for slidably opening and closing ladles, obtained by preparing a mixture of 70-90 wt.% of chromite sand and 10-30 wt.% of silica sand, and compounding 0.05-5 wt.%, with respect to a total weight of the mixtu...
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WO/1998/050184A1 |
A nozzle for continuous casting of steel which excels in resistances to both clogging and melting loss, characterized in that the inner hole and/or the part in contact with molten steel of the nozzle for continuous casting of steel are f...
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WO/1998/043928A1 |
A carbon/silicon carbide composite material having as the uppermost layer a carbon layer containing silicon carbide, having a thickness of 1 mm or larger, and formed by causing silicon and boron carbide to penetrate into a carbon base fr...
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WO/1998/042464A1 |
Molten metal is fed to a caster (81) in a continuous casting operation through a distributor (82) that divides the molten metal into four streams (83, 84, 85, 86) flowing in circulating patterns from a central axis of the caster (81). Ea...
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WO/1998/042630A1 |
A granular thermal insulating material comprising rice hull ash, ceramic clay binder, rice bran and an exfoliating agent, and methods to produce the insulating material.
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WO/1998/042465A1 |
A refractory pour tube (10) with a wear resistant plate (20) includes a one-piece composite member (60) formed of different refractory compositions, a casing (64) disposed around a portion of the member (60) and a castable refractory mat...
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WO/1998/041345A1 |
A refractory pouring member (20) such as a tundish nozzle or tube (24) and integral plate (22) for use in a slide gate valve or stopper rod valve system in continuous steel casting has selected portions made from an erosion and abrasion ...
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WO/1998/041344A1 |
The invention concerns a valve assembly, an admission path (310) for a pouring nozzle, adjacent to the outlet of the valve, and spring thrusters (330, 340) for maintaining this nozzle in operating position on the admission path (310) for...
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WO/1998/039608A1 |
Such a method serves for the production of monolithic, refractory linings in metallurgical vessels and furnaces by using a template. Between the template and the wall with the refractory lining, there is formed a fill space to be filled ...
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WO/1998/035774A1 |
The present invention provides a feeder of molten metal for moulds of continuous casting machines comprising a cylindrical body (1) within which a main outflow duct (5) of the molten metal coming from the tundish is formed to which the c...
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WO/1998/034745A1 |
The invention relates to a vessel for metallurgical purposes to transport molten metals, comprising a metal jacket consisting of individual tubular sections with a heat-resistant lining. Said jacket has two peripheral integrated axially-...
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WO/1998/034887A1 |
A castable refractory composition comprising: (a) 50-90 volume percent coarse particulates having a particle size between about 1 and 60 mm; and (b) 10-40 volume percent fine filler materials having a particle size distribution of betwee...
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WO/1998/029209A1 |
The invention relates to an inductor system adjoining a fireproof ceramic spout and aims to provide effective heat insulation between the inductor (5) and the spout (4). According to the invention, a heat insulating layer (6) made of a r...
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WO/1998/025719A1 |
The present invention concerns a method enabling deposits in metal or non metal containers to be prevented or reduced, including high alumina refractory deposits (clogging) in the sink basin and/or the discharge device from the metallurg...
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WO/1998/025718A1 |
The invention relates to an inductor to generate an electro-magnetic alternating field which is placed in a flow-out organ of a fusion tank and cross-flown with a cooling fluid for cooling. In order to operate the inductor using differen...
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WO/1998/022243A1 |
A nozzle for the continuous casting of steel, which is excellent in the resistances to adhesion of Al�2?O�3? inclusion, breaking and spalling. The nozzle is characterized in that at least the inside surface layer and/or the section t...
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WO/1998/018584A2 |
The invention concerns a method of casting on liquid casts, in particular steel casts, through a spout (3) of a smelting vessel, the spout (3), before casting on, being closed by the solidified cast (S) at least in the region of its inle...
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WO/1998/017421A1 |
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 (...
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WO/1998/017422A1 |
The invention concerns a transfer element for transferring molten steel between an upstream container such as a tundish and a downstream vessel such as a continuous casting mold. This element is comprised of a body (4) that delimits a st...
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WO/1998/017420A1 |
The invention relates to a set of refractory assemblies (8, 12, 30, 32, 42, 48, 50, 60), which is capable of being used between an upstream container (2) and a downstream container (10) of a plant for transferring liquid metal, in partic...
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WO/1998/016334A2 |
An apparatus and process are provided for producing semi-solid material and directly casting the semi-solid material into a component wherein the semi-solid material is formed from a molten material and the molten material is introduced ...
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WO/1998/016337A1 |
A driving device of a closing and/or regulating mechanism (2) for tapping liquid molten baths from a container (1) has a an extension arm (9) extending substantially horizontally on the container, height-adjustably mounted on a support (...
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WO/1998/015374A1 |
A method and device for discontinuous parting off of molten mass out of a vessel through a passage should be operationally reliable. Molten mass flow in the passage (2) or in the direction of flow behind the passage (2) is interrupted an...
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WO/1998/014292A1 |
A method and apparatus for flowing liquid metal through a casting nozzle (170) includes an elongated bore having at least one entry port, at least one upper exit port (182), and at least one lower exit port (176). A baffle (178) is posit...
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WO/1998/012153A1 |
A refractory composition for producing a compact castable, comprising a main material free from cement, containing 70 to 98 wt.% refractory aggregate of less than 10 mm in grain size and 2 to 30 wt.% refractory ultra-fine powder of less ...
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WO/1998/007536A1 |
An apparatus and method relate to tapping a molten metal bath from a reactor. The apparatus includes a tapping pipe having a tapping pipe inlet and tapping pipe outlet for withdrawing a portion of the molten bath from the reactor. The mo...
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WO/1998/005452A1 |
The invention seeks to improve a method for the injection and/or casting of liquid metals, steel in particular, using a nozzle (3,9) located in the wall or at the bottom of a metallurgical container. The nozzle couples with the electro-m...
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WO/1998/005451A1 |
This invention concerns a fireproof plate (20) serving as a sliding gate at the outlet of a vessel containing molten metal. The periphery of the plate forms a many-sided polygon and has a longitudinal axis (23) from both sides of which a...
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WO/1998/004371A1 |
An improved beaver-tail tube assembly (30a, 30b) is provided that is easily exchanged in place over a thin-slab casting mold (20) by means of a conventional tube changer (22). The tube assembly includes a rectangular plate (3), and a tub...
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WO/1998/003444A1 |
A nozzle or tube which is useful for pouring molten metal, especially aluminum killed molten steel. The nozzle is formed from a blend of doloma and graphite which is bonded together in a carbonized matrix. Nozzles or tubes made in accord...
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WO/1998/002265A1 |
The invention relates to a stopper-rod structure (2) with a metal stopper rod (1) on which said structure is mounted, and a device for connection of the stopper-rod structure (2) to the stopper rod (1). Said structure has a metal adapter...
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WO/1998/000255A1 |
A stopper rod (50) in the form of an elongate moulded body having a longitudinal bore (51) has attachment means for attaching the stopper rod to a lifting and lowering mechanism. The attachment means comprises a first sleeve (10) to be m...
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WO/1997/048512A1 |
A dip pipe (1) which feeds by gravity with a molten metal or alloy (2) from a ladle (3) a slab (4) being formed in a thin mould (5) with cooling walls comprises a length of vertical pipe (6) communicating with the upper ladle (3) and dow...
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WO/1997/047412A1 |
A nozzle is disclosed for thin strip casting plants, in particular steel strip casting plants. In such casting plants, liquid steel coming out of the nozzle, which forms a casting slot, must be applied on a carrier. At least one primary ...
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WO/1997/046344A1 |
The invention relates to a process and a device for controlling the flow dispersion of a molten metal, in particular steel, which is conveyed from a melt container via a first immersion outlet part which has a polygonal, oval or circular...
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WO/1997/044152A1 |
The invention relates to a one-part, fire resistant ceramic composite structure consisting of at least two adjacent layers. The substantial mass portion of the layers consists of an identical, fire-resistant ceramic material, and the rem...
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WO/1997/044151A1 |
Disclosed is a process for pouring a steel melt through the base outlet of a steel casting ladle in which the base outlet is first closed by a slide and the pouring channel leading through the outer wall of the ladle is filled above the ...
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WO/1997/043590A1 |
The present invention is directed to a co-molding process for producing co-molded, chemical bonded, canned refractory articles which eliminates the costly and problematic firing or sintering steps and which eliminates the time consuming ...
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WO/1997/043592A1 |
In an electric-arc furnace (100) with tapping hole (13) in the hearth a frame (20) integral with the side wall (10) carries a vertical telescopic device (30, 40) that is rotatable about its own longitudinal axis and that carries undernea...
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WO/1997/041985A1 |
An electromagnetic valve for controlling the flow of an electrically-conductive liquid along a channel comprises two magnetic field generators (42, 43) being disposed adjacent the channel (41). The first generator creates a first alterna...
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WO/1997/038809A1 |
This invention concerns a process for changing the pouring spout (20) on the outlet (12) of a container (10) containing a melt whereby a new pouring spout (40) is set in place in a continuous casting die (25) underneath the sealable outl...
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WO/1997/037799A1 |
A tundish impact pad (10) comprises a body of refractory material capable of withstanding contact with molten steel, the body comprising a base (15) having an impact surface (16) for molten steel, an outer sidewall (17) extending upwardl...
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WO/1997/033712A1 |
A sliding gate valve having a fully open position, a shut-off position and a throttling position, the valve comprising: a fixed refractory plate (1) having a first orifice (2) disposed therein, a sliding refractory plate (3) having a sec...
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WO/1997/031736A1 |
A sliding unit for a metallurgical container (2) is disclosed. The unit includes a stationary refractory plate (14) comprising a working surface mounted under a pour hole (12) of the metallurgical container (2), at least two movable refr...
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WO/1997/031737A1 |
A sliding gate device for a vessel containing molten metal is disclosed. The device includes a stationary body (18, 20) defining an internal chamber (26) with an upstream wall and a downstream wall, each of said walls being provided with...
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WO/1997/031735A1 |
A rotary nozzle, in which a sliding plate brick having nozzle holes is turned to adjust an extent, to which the nozzle holes overlap nozzle holes of a stationary plate brick, to control an injection amount of molten metal such as molten ...
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WO/1997/030807A1 |
The invention concerns a tundish for continuous casting in a steel mill, equipped with at least one tube changer (18). The changer has a frame (20) mounted under the tundish (2), at least one fixed plate (8) and a tube (28), having a pla...
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