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Daussan et Compagnie Patents
Assignee:
Daussan et Compagnie
Address:
Woippy, FR
No. of patents:
29
Patents:












Patent Number Title Of Patent Date Issued
6216768 Device for filtering and treating molten metal April 17, 2001
The ratio of the number of free holes (4a) in a filtering plate (2, 3), located in the areas (9) which are not covered by the an insert (7) of treating material, on the one hand, to the total number of holes (4, 4a) in said filtering plate (2, 3), on the other hand, is not less than 10%
5690161 Process for treating molten metal during a casting operation using a filter and filter for imple November 25, 1997
A filter for molten metal comprises a series of at least two refractory mineral material plates which define between them one or more cavities. The plates each comprise a series of holes through which the liquid metal passes and by which the liquid metal is filtered. At least one of the
5603373 Process for treating molten metal during a casting operation using a filter and filter for imple February 18, 1997
A filter for molten metal comprises a series of at least two refractory mineral material plates which define between them one or more cavities. The plates each comprise a series of holes through which the liquid metal passes and by which the liquid metal is filtered. At least one of the
5409139 Installation for applying a lining to a surface such as the interior of a metallurgical vessel April 25, 1995
The installation is intended to apply a lining in one or more layers to a surface, such as the interior of a metallurgical vessel. The installation comprises a silo (1) containing a scraper (13) driven in rotation about a vertical shaft and including, at its lower part, a compartment whi
5332418 Covering for molten metal and process for producing the same July 26, 1994
A pulverulent insulating and purifying covering (3) for the surface of liquid metal (2) contained in a metallurgical receptacle (1), comprises a layer (4) which includes at least one metallic oxide of basic character, capable of reacting with oxide inclusions contained in the liquid meta
5188794 Method for covering a metallurgical vessel with a purifying lining and composition relating to s February 23, 1993
There is applied on the internal wall of a metallurgical vessel a composition containing a carbonate of an alkaline-earth metal to which there has been added a certain proportion of refractory material in grains and this lining is heated in order to remove CO.sub.2 and in order to ob
5188690 Method for applying a covering on a substrate, a device for carrying out the method and a coveri February 23, 1993
A method for applying a covering on a substrate consists in embedding a reinforcement (2) in a covering (10). To this end, a number of hooks (3) are fixed on the substrate (1), preferably with variable orientations and/or inclinations with respect to the substrate (1). The reinforcement
5176873 Method for forming a lining on a metallurgical vessel, a composition and a machine for the appli January 5, 1993
The method for forming a lining on the internal faces (2) of a metallurgical vessel (1) for receiving molten metal involves the following steps:a) at least one movable wall (3) is positioned at a predetermined distance from the internal face (2) of said vessel,b) a composition (4) contai
5160692 Process and plant for producing a lining on the inner walls of a metallurgical vessel November 3, 1992
A metallurgical vessel (1) whose inner walls to be lined are relatively hot is placed on a suitable support; the support is tilted and the metallurgical vessel (1) is brought successively into a number of different positions, in each of which an inner wall or a part of wall of the ve
5037672 Device for spraying a coating on the internal surface of a vessel for transferring molten metal August 6, 1991
The device for spraying a coating on the internal faces of a vessel (2) for the transfer of molten metal such as a tundish comprises a spraying lance (3) secured to a carriage (4).The carriage (4) is capable of displacement in translational motion on a guide (6; 106) which extends in a f
4939033 Pasty gasket for producing a leakproof seal between surfaces which are subjected to heat and whi July 3, 1990
A pasty gasket (5) is placed on the upper edge (6) of a metallurgical container (1) in order to produce a leakproof seal with the cover (4) of the latter. The gasket (5) is constituted by a mixture containing from 5 to 10% by weight of plasticizing substances containing clay and/or b
4909421 Installation for teeming liquid metal and process for its use March 20, 1990
A metallurgical receptacle (1) for a liquid metal (2), provided with a casting orifice (6) and comprising under this orifice (6) a principal device (8) for closing and opening the orifice (6). An auxiliary device (12) for preheating, closing and unplugging the casting orifice (6), is
4908234 Method and installation for spraying a multi-layer insulating refractory coating, and the coatin March 13, 1990
A method and installation for applying an insulating refractory coating comprising at least two layers of equal of unequal thickness, of different compositions and equal or different water contents, onto surfaces such as the interior of metallurgical vessel (1). At least two aqueous past
4901984 Method for coating a metallurgical vessel and a coating obtained February 20, 1990
The coating for the metallurgical vessel (1) comprises a permanent refractory lining (2) and a refractory wearing layer (4) which is constituted by an aqueous slurry containing inorganic particles and a binder. The coating further comprises a waterproof layer (5) between the refracto
4854550 Stopper for retaining slag and process for implementation and manufacture thereof August 8, 1989
The stopper (1) is intended to automatically stop the orifice (14) of the pouring hole (11) of a metallurgical container (8) at the end of pouring of liquid metal (12) before the passage of slag (13).It principally comprises an external envelope in a refractory insulating material which
4799652 Lining for protecting the interior of a metallurgical vessel and a method for forming said linin January 24, 1989
An internal lining for protecting the permanent refractory lining of a metallurgical vessel (1, 2) such as a tundish, casting ladle or slag pot has a base of refractory inorganic particles coated with a binder. The protective internal lining is constituted by at least two layers, namely
4792070 Tubes for casting molten metal December 20, 1988
A tube for continuous casting of molten metal is composed of a thin sheet-metal cladding and of an internal lining of heat-insulating material which is sinterable at the casting temperatures involved. The upper end of the casting tube is attached in air-tight manner to the discharge outl
4660808 Heat-insulating casting tube for a metallurgical vessel April 28, 1987
A heat insulating casting tube is disposed between the outlet orifice of a first metallurgical vessel and a second metallurgical vessel. One end of the casting tube has a removable and substantially leaktight engagement about a casting nozzle or an adapter forming an extension of the noz
4576365 Device for the removal of inclusions contained in molten metals March 18, 1986
The device for removing inclusions and especially oxides of the molten metal which is poured into a casting tundish comprises elements which are placed within the interior of the casting tundish and immersed in the molten metal. The elements are formed of heat-insulating material which i
4544409 Coating for protecting constructions, particularly against heat and fire October 1, 1985
A coating for protecting constructions against fire and heat, comprises 10 to 80% by weight of aluminous and/or Portland cement and 5 to 20% by weight of hydrated trisodium phosphate (Na.sub.3 PO.sub.4.12H.sub.2 O). A small but effective amount of a flux can be included, which can be cal
4468012 Device for the removal of inclusions contained in molten metals August 28, 1984
The device for removing inclusions and especially oxides of the molten metal which is poured into a casting tundish comprises elements which are placed within the interior of the casting tundish and immersed in the molten metal. The elements are formed of heat-insulating material which i
4432396 Casting tube February 21, 1984
The casting tube is constituted by a mixture of refractory particles and fibers embedded in a binder which is not capable of withstanding the temperature attained when liquid metal flows within the tube. The refractory particles are sinterable in a tube zone which is directly exposed
4368834 Preheating device for stopper-type tundishes January 18, 1983
A tundish provided with at least one stopper which moves towards or away from a casting outlet formed in the bottom tundish wall and with a burner placed in the vicinity of the outlet essentially comprises at least one casing which is placed around the casting outlet in such a manner as
4339115 Heat insulating lining for metallurgical vessels July 13, 1982
The heat insulating lining of the metallurgical vessel includes a permanent layer in a refractory material and a consumable layer arranged in the interior of the vessel and intended to be in direct contact with the liquid metal. This layer consists of a mixture of inorganic particles and
4337930 Heat insulating lining for a metallurgical container July 6, 1982
The lining for a metallurgical container comprises a series of removable plates of heat insulating material designed to be applied to the inside of the metallurgical container against the lateral walls and the bottom of the latter, at least a part of these plates being quadrangular and
4295891 Blanket powder for covering a molten metal bath October 20, 1981
A blanket powder for covering a molten metal bath in order to prevent oxidation and to provide heat insulation contains, in addition to the ash of cereal hulls, approximately 5 to 50% by weight of non-calcined cereal hulls. The powder can thus be transported and handled without any a
4222505 Actuating device for a casting tube or nozzle September 16, 1980
A casting tube or nozzle is placed beneath the casting outlet of an upper vessel such as a casting ladle and immersed in the molten metal which is teemed into a lower vessel such as a casting tundish or directly into ingot-molds. A mechanism is provided for displacing the casting tube in
4202533 Method and a device for unchoking the casting outlet of a metallurgical vessel May 13, 1980
In order to unchoke the casting outlet of a vessel such as a casting ladle fitted with a casting tube for transferring molten metal to a tundish, a feed pipe is engaged in a lateral opening formed in the upper portion of the casting tube and guided within the tube until the end of the fe
4096976 Vessels for transferring liquid metal having a removable insulating lining June 27, 1978
The permanent refractory lining of a liquid metal transfer vessel is covered with a removable heat-insulation lining formed of inorganic particles embedded in a binder, the particles being sinterable at the temperature of the liquid metal to be introduced into the vessel. The liquid

 
 
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