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| Number | Title | Issue Date |
| 8187526 | Method and device for operating a change converter unit of an oxygen steel-making plant A method for operating a change converter unit of an oxygen steel-making plant, in which, for the change process, a worn converter, including the entire converter unit, made up of not only the converter, but also the converter carriage, carrier ring, tilting drive, ... | 05/29/2012 |
| 8163229 | Apparatus and method for supporting continuous casting nozzle, sliding nozzle system and continuous casting nozzle A continuous-casting-nozzle support apparatus capable of enhancing sealing performance between a continuous casting nozzle and an SN device. The continuous-casting-nozzle support apparatus comprises: a holding mechanism 40 disposed to extend from a stationary... | 04/24/2012 |
| 8158053 | Refractory articles A process for making a filter suitable for filtering molten metal comprising (i) forming a slurry comprising (a) particles of a refractory material, (b) a binder and (c) a liquid carrier, (ii) coating a disposable former with a slurry, (iii) drying the coated former... | 04/17/2012 |
| 8153049 | Method and apparatus for melting metal A stack of copper plates is placed in a melting chamber having a closed roof of refractory material. The stack is placed in a tilted orientation leaning against a side wall of the melting chamber, with lower edges of the copper plates resting on an inclined hearth s... | 04/10/2012 |
| 8128862 | Blast furnace gas burning facility and method for operating the same The blast furnace gas burning facility prevents a wet type dust collector from freezing under such conditions that the temperature of blast furnace gas does not exceed the freezing lower-limit temperature of the wet type dust collector. The blast furnace gas burning... | 03/06/2012 |
| 8114338 | Tilting-type automatic pouring method and storage medium A tilting-type automatic pouring method for pouring molten metal from a ladle with an outflow position into a mold. The method includes tilting the ladle forward to pour molten metal into the mold, measuring a weight of poured molten metal, calculating a flow rate o... | 02/14/2012 |
| 8114337 | Lance extraction Solids injection lances for injecting solids into a metallurgical vessel are normally supplied with cooling water from a cooling water circuit through water supply lines and return lines. Supply lines are provided with spaced pairs of connectors and bypass valves, a... | 02/14/2012 |
| 8075836 | Steel-sheet continuous annealing equipment and method for operating steel-sheet continuous annealing equipment Steel-sheet continuous annealing equipment includes, in sequence, a pre-heating zone, a heating zone, a soaking zone, a cooling zone, a reheating zone, an overaging zone, and a final cooling zone, and further includes a rapid heating region and a rapid cooling regio... | 12/13/2011 |
| 8007711 | Method for operating a converter In a method for operating a converter (1), in which the converter (1) is mounted in a carrying ring (3) by means of carrying journals (2), a gear mechanism (4) is mounted in a floating manner on the carrying journals (2), th... | 08/30/2011 |
| 7998398 | Slag removal system for a burn table A pivoting door assembly for a downdraft cutting table assembly includes a door for covering a vent of the downdraft cutting table assembly, and an arm assembly coupled to the door. The downdraft cutting table assembly may include a cutting table for supporting a wo... | 08/16/2011 |
| 7993572 | Screw conveyor and operation control method for the same A screw conveyor for conveying an object to be conveyed, supported by a casing 1 by rotation of a screw 2, in which wear of a screw blade and decrease in conveyance efficiency are prevented without the need for extra power. Load on an electric motor | 08/09/2011 |
| 7875235 | Method for batchwise heat treatment of goods to be annealed A method is described for batchwise heat treatment of goods to be annealed which are heated in a heating chamber after scavenging air with a scavenging gas under protective gas to a predetermined treatment temperature, with the protective gas being conveyed through ... | 01/25/2011 |
| 7829010 | Guide tube end-piece, assembly and method An end-piece for an additive guide tube is disclosed. Such an end piece may have a durable sleeve and a sloughable sleeve. The sloughable sleeve may have a channel through which an additive may be delivered, and the sloughable sleeve may reside in the through-hole o... | 11/09/2010 |
| 7811509 | Material submergence system A molten metal submergence device includes a submergence chamber, an inlet pipe, and a vortex breaker. The submergence chamber is defined by a side wall and includes an inlet in communication with an associated molten metal bath and an outlet in communication with t... | 10/12/2010 |
| 7666345 | Method and apparatus for melting metal An apparatus for melting a metal load includes a furnace having a melting chamber with a hearth and a molten metal outlet. The apparatus further includes non-regenerative burners that are operative to fire into the melting chamber, and regenerative burners that also... | 02/23/2010 |
| 7648672 | Process and system employing generation of controlled furnace atmospheres without the use of separate gas supplies or stand-alone atmosphere generators In a system for processing metal, a furnace is provided which receives the metal being processed. At least one heating burner is provided in the furnace together with at least one atmosphere burner of substantially a same construction as the heating burner. An exhau... | 01/19/2010 |
| 7601293 | Compliant fill tube assembly, fill tube therefor and method of use A fill tube assembly is for a casting mold. The fill tube assembly includes a fill tube having a tubular member with a receiving end, a mold-engaging end and an intermediate portion. The mold-engaging end has a tapered flange radially extending therefrom, the remain... | 10/13/2009 |
| 7556764 | Silica vessel with nozzle and method of making A fused silica crucible having a nozzle is formed by first inserting a preformed silica glass tube into the lower portion of a graphite mold. The tube is aligned with a vertical axis about which the mold is rotated while silica grain is poured into the mold and shap... | 07/07/2009 |
| 7540992 | Method for controlling the homogeneity of the temperature of products in a metallurgical reheating furnace, and reheating furnace The invention relates to a method for controlling the homogeneity of the temperature of metallurgical products (B) in a reheating furnace (5) fitted with lateral burners. According to said method, the lateral burners are operated by on/off control, and the op... | 06/02/2009 |
| 7351324 | Liquid fuel applying to various combustion systems with high heating value, high volatile, low pollution and low price The present invention relates to a liquid fuel blended by dissolving crude pentane into the heavy oil with different proportions, and applied to different combustion system respectively; the fuel thus formed is easily dissolved, volatilized, atomized and vaporized i... | 04/01/2008 |
| 7338629 | Integrated metal processing facility A system and method for forming and heat treating a metal casting are provided. ... | 03/04/2008 |
| 7335281 | Method of manufacturing liquid medium containing composite ultrafine particles A method of manufacturing a liquid medium containing composite ultrafine particles comprises the steps of preparing a dispersion medium that is a liquid medium in which ultrafine particles of different materials from each other are dispersed, introducing the dispers... | 02/26/2008 |
| 7331374 | Method and apparatus for assisting removal of sand moldings from castings Disclosed is a method for dislodging a mold from a casting formed within the mold. The mold may be removed from the casting by scoring the mold and applying a force sufficient to cause the mold to fracture and break into pieces. Additionally, the mold may be fractur... | 02/19/2008 |
| 7309464 | Steerable magnetic wheel carriage A lightweight remote controlled carriage apparatus having a frame means composed of a first frame member and a second frame member interconnected by a transverse frame member having a transverse frame member axis; the transverse frame member having a pivot point int... | 12/18/2007 |
| 7302996 | Feed device for feeding molten metal into a crystallizer A drop feeder (1) for feeding molten metal into an ingot mould (15) comprises a distributor (3) having a substantially prismatic shape, with one of the faces open, in which the inside of the distributor comprises three tanks (4, 5, 6), se... | 12/04/2007 |
| 7290583 | Methods and apparatus for heat treatment and sand removal for castings A system and method for heat treating castings and removing sand cores therefrom. The castings are initially located in indexed positions with their x, y, and z coordinates known. The castings are passed through a heat treatment station typically having a series of ... | 11/06/2007 |
| 7287637 | Conveyor system for minimizing product damage during collection A conveyor system is provided to limit the vertical fall experienced by a product transported along the conveyor and falling into a collection bin. A sensor in a fixed position relative to the product conveying plane of the conveyor measures product collection heigh... | 10/30/2007 |
| 7282171 | Method for oxy-fuel combustion An oxygen fueled combustion system includes a furnace having at least one burner, an oxygen supply for supplying oxygen having a predetermined purity, and a carbon based fuel supply for supplying a carbon based fuel. The oxygen and the carbon based fuel are fed into... | 10/16/2007 |
| 7276205 | Injection device and process for the injection of a fluid The invention relates to an injection device for the reliable introduction of a fluid into a metallurgical vessel having a refractory lining, the device being removably insertable in the lining; comprising a refractory first body (2) and a refractory second b... | 10/02/2007 |
| 7275582 | Methods and apparatus for heat treatment and sand removal for castings A system and method for heat treating castings and removing sand cores therefrom. The castings are initially located in indexed positions with their x, y, and z coordinates known. The castings are passed through a heat treatment station typically having a series of ... | 10/02/2007 |
| 7273510 | Arrangement and method for tapping a molten phase from a smelting furnace The invention relates to an arrangement (1, 12, 16) for continuously tapping a molten phase, such as matte, from a smelting furnace, such as a flash smelting furnace, said arrangement comprising a matte tapping hole (5) provided in the furnace wall for... | 09/25/2007 |
| 7270297 | Hoist for aircraft cabin construction A device is provided for hoisting a module for mounting into an overhead space, such as the crown of an aircraft fuselage. The device includes a frame that supports the module, and a lifting device that lifts the first frame to properly place the module. The lifting... | 09/18/2007 |
| 7258831 | Injector-burner for metal melting furnaces The following invention relates to an injector-burner for applications in the metalwork field, in particular for use in electric arc furnace melting processes having a frontal head with two series of holes arranged in two concentric crowns, the inner crown of holes ... | 08/21/2007 |
| 7258755 | Integrated metal processing facility An integrated metal processing facility in which molten metal is poured into a series of molds at a pouring station to form metal castings, which are then transferred to a heat treatment line. Prior to introduction of the castings into a heat treatment station of th... | 08/21/2007 |
| 7232542 | Preheating cold blast air of a blast furnace for tempering the hot blast temperature An improved blast furnace system for producing molten iron incorporating a preheater to heat the cold blast air used to temper the hot blast temperature is disclosed. The improved blast furnace system comprises a blast furnace, a hot blast main for conveying a suppl... | 06/19/2007 |
| 7175691 | Method of producing stainless steel by re-using waste material of stainless steel producing process A method of producing stainless steel includes the steps of melting a raw material in an electric furnace to form molten steel, and then refining the molten steel by a refining furnace to produce stainless steel in a stainless steel producing process. In the method,... | 02/13/2007 |
| 7172640 | Method and device for melting down metal-containing materials In a method and a device for melting down metal-containing material, preferably fine-particulate metal-containing material, such as sponge iron, in a metallurgical melting furnace (1), wherein, in an interior space (11) of the melting furnace (1... | 02/06/2007 |
| 7160501 | Method for the salt-free, non-oxidizing remelting of aluminium Process and device for saltless, oxidation-free remelting of aluminum, its alloys and of aluminum scrap with miscellaneous impurities, such as combustible oily substances, adherent combustible or noncombustible materials and those with a higher specific weight in a ... | 01/09/2007 |
| 7159737 | Internally cooled pressure containment apparatus A pressure containment apparatus includes a shell having a top end and a bottom end forming a pressure chamber. The pressure containment apparatus also includes a liner having an outside diameter larger than an inside diameter of the shell, wherein the liner is remo... | 01/09/2007 |
| 7150777 | Method for recovery of by product gas in vacuum heat treatment A method and apparatus for the recovery of by product gases used in a vacuum metal treatment process or other gas treatments processes are disclosed. The present invention is normally carried out in a process chamber in the last stage of the process, after vacuum pr... | 12/19/2006 |
