DANIELI & C. OFFICINE MECCANICHE SPA Patent applications |
Patent application number | Title | Published |
20160082503 | Apparatus for Continuous Casting - Apparatus for continuous casting comprising a support structure provided with a containing casing configured to support inside it a mold equipped with a plurality of longitudinal passage channels for the passage of a cooling liquid. The containing casing and the mold together define an introduction chamber and a discharge chamber for the cooling liquid, and the introduction chamber and the discharge chamber are fluidically connected by the passage channels. The mold comprises a first tubular element and a second tubular element disposed inside the first tubular element. The second tubular element comprises a plurality of plates each provided with passage channels and connected to each other to define a through casting cavity. The first tubular element is provided with connection members to connect the passage channels of the plates respectively with the introduction chamber and with the discharge chamber. | 03-24-2016 |
20160076114 | Method for Melting Metal Material in a Melting Plant and Relative Melting Plant - Method for melting metal material in a melting plant comprising at least an electric furnace having at least a shell into which said metal material is introduced, and feed means to load said metal material into said shell, said method comprising at least a step of loading said metal material into said shell by means of said feed means, a melting step in which said metal material is melted, and a subsequent tapping step in which the molten metal material is tapped. | 03-17-2016 |
20160067770 | Apparatus for Continuous Casting and Method to Assemble Said Apparatus for Continuous Casting - Apparatus for continuous casting comprising a support frame and a plurality of plates coupled to each other to define a tubular element provided with a casting cavity. Positioning members are provided to connect the plates to the support frame. The positioning members comprise attachment devices suitable to connect at least a first plate to a wall of the support frame, and thrust devices configured to compress the other plates with respect to each other, in correspondence with respective connection edges and against the at least one first plate. | 03-10-2016 |
20160002744 | DIRECT REDUCTION PROCESS WITH IMPROVED PRODUCT QUALITY AND PROCESS GAS EFFICIENCY - A direct reduction process producing DRI from iron oxide particles by reduction at a about 750° C. with a reducing gas mainly H | 01-07-2016 |
20150343515 | CONVEYING DEVICE OF ROLLED BARS EXITING FROM A CUTTING SHEAR, CUTTING MACHINE AND CUTTING PROCESS THEREOF - A conveying device ( | 12-03-2015 |
20150308746 | APPARATUS FOR CONVEYING AND PRE-HEATING A METAL CHARGE FOR A MELTING PLANT AND CONNECTED METHOD - Apparatus for continuously conveying and pre-heating a metal charge inside a container of a melting plant, comprising at least a conveyor channel, having walls to convey the metal charge, and at least a hood defining a conveyor tunnel and/or an expansion chamber. The hood is disposed above the conveyor channel for the transit of at least part of the fumes exiting from the container, and the conveyor channel cooperates with apertures to discharge the fumes. The apertures cooperate with at least a fume diverting channel defining at least a first expansion compartment, located substantially vertical or sub-vertical, connected both to the apertures and also to at least a channel to take in the fumes. | 10-29-2015 |
20150276327 | APPARATUS AND METHOD TO TRANSFER HEAT ENERGY BY MEANS OF PHASE CHANGE MATERIALS - An apparatus for the extraction of heat energy from hot off-gases ( | 10-01-2015 |
20150240915 | PLANETARY GEARING - A planetary gearing comprising a predetermined number of planet gears and a planet gear carrier with two walls on which the planet gears are mounted, supported by supporting pins defining a respective axis and the ends of which are fixed to a respective wall of the planet gear carrier, wherein each supporting pin is provided with, at an end thereof, an annular groove obtained in the thickness thereof, and wherein said groove has an extension along the axis lower than the extension of the meshing band of the planet gear along the axis. A ring may be provided partly inserted in the groove and having a profile equal to that of the portion of groove in which it is inserted. Such a ring acts as a mechanical stop for the yielding part of the pin which yields, under a predetermined load, up to a contact with the ring. | 08-27-2015 |
20150240877 | ELASTIC JUNCTION FOR SLIDING BLOCK ADAPTER - The elastic junction for the dynamic connection between the motor side and the head of a sliding block adapter, or between adapter and rolls of a rolling plant, comprises a central pin ( | 08-27-2015 |
20150184264 | METHOD AND APPARATUS FOR PRODUCTION OF DIRECT REDUCED IRON (DRI) UTILIZING COKE OVEN GAS - Direct reduction process and plant for producing DRI comprising a reduction reactor and at least one reducing gas heater typically comprising a convective heating section and a radiant heating section for raising the reducing gas temperature to a level adequate for iron oxides reduction to metallic iron, typically above 850° C., wherein the reducing gas fed to the reduction reactor comprises a stream of reducing gas recycled from the reduction reactor and a make-up stream of coke oven gas containing carbon compounds which may form carbon deposits in the heating path of said heater, namely BTX and other complex carbon compounds. The heater is provided with means for feeding oxidizing agents, for example steam, steam and air and/or oxygen at predetermined heating tubes successively for eliminating the carbon deposits which may form inside the heating tubes of said heater without interrupting the operation of the plant. The make-up stream of cold COG can be combined with the recycled gas at a point in the gas heating path of the heater where the tubes have a skin wall temperature of at least 700° C., or when the mixture of recycled gas and COG is at a temperature above 700° C. for minimizing clogging or fouling of heating equipment. | 07-02-2015 |
20150158077 | METHOD FOR DETERMINING A STRETCH OF CASTING LINE INCLUDING THE CLOSING POSITION OF THE LIQUID CONE OF A CONTINUOUSLY CAST METAL PRODUCT - A method for determining if a stretch of castin line includes the closing position of the liquid cone of a continuously cast metal product, where there is provided a casting line comprising: —an ingot mold containing the liquid metal and in which a meniscus is defined, —one or more soft reduction roll devices, —cylinders for actuating said one or more soft reduction devices, —at least two oscillation application areas, said oscillation application areas being arranged in said one or more soft reduction roll devices, said oscillation being achieved by the rolls of said one or more soft reduction devices by means of the actuating cylinders, the method comprising the following stages: a) applying an oscillation along the casting line to said cast product by means of said at least two application areas in sequence; b) detecting the oscillating frequency of the meniscus level in the ingot mold; c) comparing the oscillating frequency of the meniscus level in the ingot mold with the oscillating frequency of said at least two areas of application. | 06-11-2015 |
20150060238 | Vibration Device for an Apparatus for Conveying a Metal Charge to a Melting Plant - Vibration device for a conveying apparatus ( | 03-05-2015 |
20140318202 | STRAIGHTENING DEVICE WITH HYPERBOLIC ROLLS FOR METAL PRODUCTS AND CORRESPONDING METHOD - Straightening device for long or rod-shaped metal products, comprising an upper roll unit and a lower roll unit, wherein the upper roll unit is mobile and can be positioned vertically at least in the step where a passage gap of said products is set to a desired value, wherein a hydraulic safety/control device is associated with the lower roll unit and comprises a single-effect hydraulic actuator of the selectively yielding type when an overload condition higher than a predetermined value is detected on said lower roll unit. | 10-30-2014 |
20140283883 | DEVICE AND METHOD FOR THE REMOVAL OF SCALE FROM A METAL PRODUCT - Device for the removal of scale from the surface of a metal product ( | 09-25-2014 |
20140260803 | PROCESS FOR PRODUCING DIRECT REDUCED IRON (DRI) UTILIZING GASES DERIVED FROM COAL - A process for producing direct reduced iron (DRI) from iron ores, utilizing a gas produced from fossil fuels, particularly coal, containing sulfur compounds and BTX, wherein said gas is heated in a gas heater, preferably of the regenerative type, wherein heat is transferred from a previously-heated solid material to the gas produced from coal. The hot gas is caused to flow through a bed of DRI particles, iron oxides or other equivalent material, outside of the reduction reactor, where said material adsorbs sulfur compounds and the BTX are destroyed. The gas resulting from this treatment, free from sulfur compounds and BTX, is combined with a reducing gas stream withdrawn from the reduction reactor after H | 09-18-2014 |
20140238098 | ROLLING UNIT - Rolling unit including at least two adjacent rolling stands, each having a pair of rolling rolls mounted on respective motorized shafts. The rolls of one rolling stand are disposed orthogonal and close to those of the adjacent rolling stand. The shafts are eccentrically supported in respective support elements, which are selectively rotatable around their axis and are each provided with rotation means to cooperate mechanically with an adjustment member suitable to make the support elements selectively rotate to determine an adjustment of the gap between the rolls. The rotation means of one pair of the support elements are directly connected kinematically to each other. The adjustment member is disposed, with respect to the rolling stands, so that the center of its gear lies very close to the line joining the centers of the support elements, so that a substantial part is contained in the bulk defined by the rolling stand. | 08-28-2014 |
20140197584 | TILTING CONVERTER - A tilting converter comprising a container ( | 07-17-2014 |
20140193586 | PLANT FOR COATING FLAT METAL PRODUCTS BY MEANS OF CONTINUOUS HOT DIPPING AND RELATIVE COATING PROCESS - A plant for coating a strip ( | 07-10-2014 |
20140159288 | TILTING OXYGEN CONVERTER - A converter comprising a container ( | 06-12-2014 |
20140138927 | TIE ROD WITH LOCKING SYSTEM AT THE ENDS - A tie rod comprising locking elements to lock the tie rod to respective end supports ( | 05-22-2014 |
20140137617 | PINCH ROLL DEVICE FOR ROLLED METALLURGIC PRODUCTS - A pinch roll device ( | 05-22-2014 |
20140096580 | ROLLING STAND WITH THREE WORKING ROLLS - A rolling stand ( | 04-10-2014 |
20140076020 | PRESS FOR UPSETTING AN END OF A METALLIC MATERIAL PIPE - The present invention relates to an upsetting press ( | 03-20-2014 |
20140072923 | APPARATUS FOR IN-LINE THERMALLY TREATING SEMI-FINISHED PRODUCTS - An apparatus ( | 03-13-2014 |
20140042676 | DEVICE TO INJECT SOLID MATERIAL INTO A BATH OF LIQUID METAL, AND CORRESPONDING METHOD - Device and method for injecting solid material in particles, powder or granulated form, of varying grain size. The device comprises a tubular pipe which can be applied on a lateral wall of a melting furnace so as to dispose its exit end inside the volume of the melting furnace and above the meniscus of the liquid metal. The device also comprises a chamber or tank to contain the solid material and emitter means comprising valve means which can be selectively opened for an opening time in the range of tenths of a second, to introduce an impulsive jet of pre-compressed gas or air which, in coordination with the opening of an exit valve which can be selectively opened, disposed at one end of said pipe, determines the emission of an impulsive flow of the solid material contained in said chamber or tank, with high kinetic energy and quantity of motion. | 02-13-2014 |
20140034264 | ROLLING METHOD FOR STRIP AND CORRESPONDING ROLLING LINE - Rolling method for the production of flat products with low productivity, which comprises a continuous casting step at a speed comprised between 3.5 m/min and 6 m/min of a thin slab with a thickness comprised between 25 and 50 mm. It also comprises a roughing step to reduce the thickness in at least one roughing stand to a value comprised between 6 mm and 40 mm, and suitable for winding, a rapid heating step by means of induction in order to at least restore the temperature lost in the segment downstream of casting and in the roughing step, a winding/unwinding step in a winding/unwinding device with two mandrels. The method also comprises a rolling step in a rolling unit that consists of a single reversing stand of the Steckel type to roll the product unwound by the winding/unwinding device, which comprises at most five rolling passes, or four inversions, in order to obtain a final product with a thickness comprised between about 1.4 mm and 10 mm, preferably between about 1.4 mm and 8 mm, a cooling step and a step of winding the final product. | 02-06-2014 |
20140026631 | ROLLING METHOD FOR STRIP AND CORRESPONDING ROLLING LINE - Rolling method for the production of flat products with low productivity, comprising a continuous casting step at a speed comprised between 3.5 m/min and 6 m/min of a thin slab with a thickness comprised between 25 mm and 50 mm, a roughing step to reduce the thickness in at least one forming stand or roughing stand, to a value comprised between 10 mm and 40 mm, preferably between 10 mm and 30 mm, even more preferably between 10 mm and 20 mm and suitable for winding, a rapid heating step using induction in order to at least restore the temperature lost in the segment downstream of casting and in the roughing step, a winding/unwinding step in a winding/unwinding device with two mandrels, a rolling step in a Steckel type rolling unit with two reversing type stands of the product unwound by the winding/unwinding device comprising not more than three double rolling passes, or two inversions, in order to obtain a final product comprised between 1-1.2 mm and 16 mm, a cooling step and a winding step of the final product. | 01-30-2014 |
20140010255 | APPARATUS FOR CONVEYING AND PRE-HEATING A METAL CHARGE FOR A MELTING PLANT AND CONNECTED METHOD - Apparatus for continuously conveying and pre-heating a metal charge inside a container of a melting plant, comprising at least a channel for conveying the metal charge, at least a hood disposed above the conveyor channel defining a tunnel and/or an expansion chamber, inside which at least part of the fumes exiting from said container advance, and apertures made in cooperation with lateral walls of said conveyor channel to discharge the fumes. The conveyor channel comprises activator means that divert the fumes and/or delimit the zone occupied by the metal charge of the conveyor channel, and that cooperate longitudinally with at least part of the conveyor channel. | 01-09-2014 |
20130340221 | OSCILLATING DESCALER AND METHOD FOR DESCALING A SEMI-FINISHED METALLURGICAL PRODUCT - An oscillating descaler ( | 12-26-2013 |
20130334745 | TILTABLE OXYGEN CONVERTER - A converter comprising a container ( | 12-19-2013 |
20130328251 | APPARATUS FOR PRE-HEATING A METAL CHARGE FOR A MELTING PLANT AND CONNECTED METHOD - Apparatus for pre-heating and conveying a metal charge to a container of a melting plant, comprising at least a conveyor channel along which said metal charge is able to advance so as to be delivered to the container, and in which above said conveyor channel at least a hood is disposed which defines a tunnel inside which at least part of the fumes exiting from said container are able to advance. At least a zone of the hood comprises an expansion chamber located above at least a portion of said metal charge, and able to expand and keep said fumes inside it for a minimum desired time of at least 1.5 seconds before they go into contact with the metal charge. | 12-12-2013 |
20130327492 | CRYSTALLIZER FOR CONTINUOUS CASTING - Crystallizer for continuous casting, having a monolithic tubular structure defined by lateral walls ( | 12-12-2013 |
20130319629 | CRYSTALLIZER FOR CONTINUOUS CASTING - Crystallizer for continuous casting, having a monolithic structure defined by lateral walls in the thickness of which channels ( | 12-05-2013 |
20130305883 | METHOD AND APPARATUS FOR PRODUCING DIRECT REDUCED IRON UTILIZING A SOURCE OF REDUCING GAS COMPRISING HYDROGEN AND CARBON MONOXIDE - The present invention concerns a method and an apparatus for producing DRI (Direct Reduced Iron) utilizing a high-oxidation reducing gas containing carbon monoxide and hydrogen, derived directly or indirectly from the gasification of hydrocarbons or coal, with a high content of oxidants (H | 11-21-2013 |
20130255343 | DRIVE SHAFT FOR TRANSMITTING MOTION TO A ROLL - A drive shaft for transmitting motion to a roll of a tube rolling stand comprising a telescopic body, a slide and a support base. The telescopic body is fixed by one end with a cardan joint to the drive shaft of the gearbox, and on the other end has a fitting for attaching the roll. The slide is hinged to the support base and may rotate under the bias of a jack to either engage or release the telescopic body. A snap-action locking device, contained within the telescopic body, comprises a cylinder, on which two rocker arms are hinged, and a spring which spreads the rocker arms making the two teeth fit into two holes in the wall of the cylinder, when the drive shaft is at its maximum working length. The carriage has two pistons to work on the two rocker arms thus freeing the locking device and allowing the telescopic sliding of the cylinder in the cylinder and the downward rotation of the drive shaft. | 10-03-2013 |
20130192324 | VIBRATION DAMPING SYSTEM FOR A ROLLING MILL WITH FIRST AND SECOND PASSIVE HYDRAULIC ELEMENTS - The present application relates to a vibration damping system for a rolling mill comprising a rolling cage and a bending adjustment system ( | 08-01-2013 |
20130186271 | DE-POWDERING PLANT FOR A SCRAP SHREDDING MACHINE AND RELATIVE METHOD - A de-powdering plant is able to be used downstream of a shredding machine and comprises a first section for processing a primary stream of powder and air arriving from a first exit line from the shredding machine, which comprises a unit for damping powders using humidity connected to an air intake downstream of the shredding machine. The first processing section also comprises a processing unit using active carbons filtration, downstream of the unit for damping powders using humidity, suitable for the adsorption of the volatile organic substances present in a stream of air exiting from the unit for damping powders using humidity. The plant comprises heating means to heat, directly or indirectly, the stream of air saturated with humidity exiting from the unit for damping powders using humidity, before it enters into the processing unit using active carbons filtration. | 07-25-2013 |
20130186159 | SHEAR FOR SHEARING PRODUCTS AND ASSOCIATED PRODUCTION PROCESS - Rolling mill shear provided with at least one blade having characteristics of toughness and resistance to thermal shock typical of the family of tool steels for hot shearing and at the same time having sufficiently high characteristics of surface hardness and wear resistance, typical of tool steels for cold shearing. This shear is particularly suitable for carrying out, with greater efficiency and for a longer time, relative to the known shears, the shearing of sections or bars at a temperature between 150 and 800° C., downstream of the Quenching & Tempering heat treatment thereof. | 07-25-2013 |
20130174765 | LOW NOx-EMISSION SELF-REGENERATIVE COMBUSTION SYSTEM - A self-regenerative combustion system comprising a single burner, capable of operating both during the combustion step and the waste gas aspiration step, and a valve with four ways and three positions, capable of switching the regeneration and the on/off control (oxydizing agent end and waste gas end). The system is provided for obtaining the maximum efficiency, flexibility, minimum fuel consumption and minimum environmental impact with reduced NOx emissions. | 07-11-2013 |
20130160277 | Rolling line and relative method - A rolling line ( | 06-27-2013 |
20130145807 | ROLLING METHOD FOR FLAT PRODUCTS AND RELATIVE ROLLING LINE - Rolling method for the production of flat products, such as metal strip, which provides a production step of a thin slab with a thickness comprised between 30 and 90 mm, preferably between 35 and 70 mm, a temperature maintenance and/or possible heating step of the slab to be sent for rolling, and a rolling step with multiple passes performed in a reversing rolling mill ( | 06-13-2013 |
20130133852 | PROCESS AND APPARATUS FOR CONTROLLING THE FLOWS OF LIQUID METAL IN A CRYSTALLIZER FOR THE CONTINUOUS CASTING OF THIN FLAT SLABS - The present invention relates to a process for controlling the distribution of liquid metal flows of in a crystallizer for the continuous casting of thin slabs. In particular, the process applies to a crystallizer comprising perimetral walls which define a containment volume for a liquid metal bath insertable through a discharger placed in the middle of the bath. The process includes arranging a plurality of electromagnetic brakes, each for generating a braking zone within said bath, and activating these electro-magnetic brakes either independently or in groups according to characteristic parameters of the fluid-dynamic conditions of the liquid metal within the bath. | 05-30-2013 |
20130133392 | ROLLING MILL STAND AND RELATED ROLLING MILL FOR LONGITUDINALLY ROLLING ROD-SHAPED BODIES - A rolling mill stand and related rolling mill for rolling rod-shaped bodies, even large in size, which meets the requirement of stiffness uniformity of the rolling mill stands in the transversal direction, all the hydraulic capsules being firmly fixed to the external structure of the rolling mill and providing for the side change of the rolls of each stand. The arrangement of rolling rolls and related extensions of each rolling mill stand is such to avoid problems of corrosion and damaging to the extensions themselves and to the reducers due to the drainage of the cooling waters. | 05-30-2013 |
20130125602 | INTEGRATED BENDING AND SHIFTING SYSTEM UNDER LOAD FOR LARGE OPENING STANDS BETWEEN THE WORKING ROLLS - A rolling stand with a bending and shifting device for rolling rolls with two lower blocks ( | 05-23-2013 |
20130112796 | PERFECTED LAYING HEAD - A laying head for the production of coils in hot rolling mills comprises a central body provided with a central cylinder and at least a shaped feed pipe, attached to the central body by means of clamping elements and bolts, and at least a circumferential guide disposed on the periphery of the cylindrical element. The circumferential guide consists of a plurality of elementary segments. | 05-09-2013 |
20130104705 | Machine and method for the threading of sleeves | 05-02-2013 |
20130086963 | HIGH-SPEED WIRE ROD ROLLING APPARATUS AND METHOD - A wire rod rolling plant constituted by three distinct, independent rolling units ( | 04-11-2013 |
20130068871 | WINDING/UNWINDING DEVICE AND METHOD FOR WINDING/ UNWINDING A METAL PRODUCT IN A ROLLING LINE | 03-21-2013 |
20120234649 | DEVICE AND METHOD FOR FEEDING METAL MATERIAL INTO A MELTING PLANT - Device for feeding metal into melting plant, in particular into melting furnace including hearth and lateral aperture. Device includes means to feed metal terminally associated with a connection conveyor including a loading plane and cooperating with translation and positioning means. Connection conveyor able to assume first position during continuous loading step, wherein its front terminal end is located substantially flush with the furnace internal wall through the aperture, to introduce metal inside the furnace; a second position distanced from the furnace wall during the step of tapping liquid metal from the furnace; and a third position while first loading the furnace, with the furnace switched off, wherein its loading plane front end is inside the furnace volume to be disposed in proximity to the distal internal wall opposite the furnace proximal internal wall, to unload and distribute a charge to cover at least part of the furnace bottom surface. | 09-20-2012 |
20120125157 | METHOD FOR PRODUCING DIRECT REDUCED IRON WITH LIMITED CO2 EMISSIONS - A method and apparatus for producing direct reduced iron (DRI), also known as sponge iron, by means of direct contact of iron oxides with a stream of recycled and regenerated hot reducing gases containing hydrogen and carbon monoxide. The invention provides a way for decreasing the uncontained emission of CO | 05-24-2012 |
20120018930 | TEMPERATURE MAINTENANCE AND/OR POSSIBLE HEATING APPARATUS FOR LONG METAL PRODUCTS AND RELATIVE METHOD - A temperature maintenance and/or possible heating apparatus for long products, continuously cast and sheared to size by means of shearing means so as to define segments of bloom, said apparatus being disposed between a casting machine having a first casting line and a second casting line, and a rolling line disposed downstream of the casting machine in order to make long rolled metal products. The apparatus comprises a first furnace, a second furnace and a transit tunnel. The first furnace is provided with a first introduction rollerway to introduce the bloom segments, disposed aligned with said first casting line, a removal rollerway, aligned with said rolling line and suitable to render the bloom segments available to said rolling line, and transverse transfer devices to transfer the bloom segments from the first introduction rollerway to the removal rollerway. The second furnace is disposed upstream with respect to said first furnace, provided with a second introduction rollerway to introduce the bloom segments, disposed aligned with said second casting line, an exit rollerway aligned with the removal rollerway and suitable to convey the bloom segments toward said removal rollerway and transverse transfer devices suitable to transfer the bloom segments from the second introduction rollerway toward the exit rollerway. The transit tunnel is located aligned with said first casting line, adjacent and parallel to the longitudinal extension of the second furnace and upstream of said first furnace, conformed to transport the cast bloom segments from said first casting line toward the first introduction rollerway of the first furnace. | 01-26-2012 |
20120018114 | CASTING AND CONTINUOUS ROLLING METHOD AND PLANT TO MAKE LONG METAL ROLLED PRODUCTS - A method to make long rolled metal products, comprising the following steps: continuous casting, made by a continuous casting machine to two casting lines, each of the two casting lines casting a product with a square, rectangular or equivalent section, with a ratio between the larger side and the shorter side of the section comprised between 1 and 4; shearing to size of the cast product by each casting line so as to define a segment comprised between 16 and 150 m in length and comprised between 10 and 100 tons in weight; direct introduction of each segment, having an average temperature of at least 1000° C.-1150° C., into a maintenance and/or possible heating furnace, comprising a first and a second movement section each disposed in axis respectively with one of the two casting lines in order to receive a respective segment; lateral transfer of each segment inside the furnace in order to dispose each segment in a third movement section disposed parallel and misaligned with respect to the first and the second movement section and aligned to a rolling axis of a rolling line parallel and offset with respect to the two casting lines; reduction of the section in a rolling mill defining said rolling axis. | 01-26-2012 |
20120018111 | TEMPERATURE MAINTENANCE AND/OR POSSIBLE HEATING APPARATUS FOR LONG METAL PRODUCTS AND RELATIVE METHOD - A temperature maintenance and/or possible heating apparatus for long products continuously cast and sheared to size by means of shearing means so as to define segments of bloom, said apparatus being disposed between a casting machine having a first casting line and a second casting line, and a rolling line disposed downstream of the casting machine in order to make long rolled metal products. The apparatus comprises: a mobile movement section of said bloom segments, disposed downstream of said shearing means and comprising a first mobile line and a second mobile line, said first and second mobile line being suitable to move transversely to the direction of advance of the bloom segments in order to move to a first position in which said mobile line and/or said second mobile line are aligned respectively with the first casting line and with the second casting line and to a second position in which one of either of said first mobile line or said second mobile line is aligned with a conveying axis; and a furnace, disposed downstream of said mobile movement section, comprising an entrance rollerway for the bloom segments aligned with said conveying axis, and an exit rollerway aligned with said rolling line and transverse transfer devices suitable to transfer the bloom segments from the entrance rollerway toward the exit rollerway. | 01-26-2012 |
20110315340 | CASTING AND CONTINUOUS ROLLING METHOD AND PLANT TO MAKE LONG METAL ROLLED PRODUCTS - A method to make long metal rolled products comprising the following steps:
| 12-29-2011 |
20110308757 | CASTING AND CONTINUOUS ROLLING METHOD AND PLANT FOR MAKING LONG METAL ROLLED PRODUCTS - A method and plant for making long metal rolled products, in which a continuous casting is provided made by a single casting machine, defining a casting axis, to cast a product with a quadrangular or equivalent section, a reduction of the section in a rolling mill defining a rolling axis substantially coinciding with the casting axis, and a selective accumulation and maintenance at temperature of a plurality of segments of cast product sheared to size in a misaligned position with respect to the casting axis and/or the rolling axis, inside a maintenance box furnace, for a time correlated to a condition of temporary interruption of the reduction step, so as to allow continuity of the continuous casting step. | 12-22-2011 |
20110272116 | METHOD AND PLANT FOR THE PRODUCTION OF FLAT ROLLED PRODUCTS - A rolling method in a rolling line, to obtain strip with a thickness varying from 0.7 mm to 20 mm, for steel which can be cast in the form of thin slabs with a thickness from 30 mm to 140 mm, the line includes a continuous casting device; a tunnel furnace for maintenance/equalization and possible heating; a rolling train having a roughing train and a finishing train; a rapid heating unit, with elements able to be selectively activated, interposed between the roughing train and the finishing train. For each lay-out of the rolling line, the position of the rapid heating unit which defines the number of stands which form the roughing train, disposed upstream of the unit, and the number of stands which form the finishing train, disposed downstream of the unit, is calculated as a function of the product of the thickness and speed of the thin slab. | 11-10-2011 |
20110259071 | ADJUSTMENT DEVICE FOR GUIDE ROLLERS AND RELATIVE ADJUSTMENT METHOD - An adjustment device and method to guide a metal product along a determinate nominal rolling axis. The device comprises a central body disposed astride the rolling axis, two guide units mounted movable on the central body, opposite each other with respect to the rolling axis and each provided with at least a guide roller for the metal product, and an adjustment mechanism mounted on the central body and operatively connected to both the guide units, in order to actuate the selective movement thereof with respect to the central body at least in an approach toward the rolling axis. The adjustment mechanism comprises a system of pantograph levers having two levers pivoted to each other and to the central body in correspondence to the rolling axis by means of a pin, and first constraint means disposed on each lever on opposite sides to the pin, so as to connect each lever to both the guide units. | 10-27-2011 |
20100326240 | CONTROL METHOD FOR MELTING A METAL CHARGE AND WEIGHING DEVICE USED IN SAID METHOD - A control method for melting a metal charge in a furnace comprising at least a hearth containing the metal charge and a roof. The method provides that the hearth is weighed by means of a plurality of weighing elements distributed along the perimeter of the base of the hearth, and that the values detected by the plurality of weighing elements are sent to a control unit in order to obtain information relating to the distribution of the metal charge inside the hearth. | 12-30-2010 |
20100038049 | BEARING STRUCTURE FOR CONTINUOUS CASTING MACHINE - A bearing structure for a curved continuous casting machine includes a monolithic and integrated structure, made of metal sheet, substantially closed and self-bearing, having at the upper part a seating or base suitable for the assembly of an ingot mold and accommodating along the casting curve both the rolls for containing and guiding the cast product, and also at least part of a secondary cooling system. | 02-18-2010 |
20090165517 | Rolling Plant - A hot-rolling plant ( | 07-02-2009 |
20090020258 | PLANT FOR PRODUCING METAL STRIP - Plant for the continuous casting of thick slabs, blooms or other similar steel products comprising an ingot mould and a series of containment and guiding rollers placed in the area below the ingot mould on both sides of the cast product, i.e. on the intrados and extrados, respectively. The rollers are arranged on at least three longitudinal rows and all have an axial length shorter that the width of the cast product. The rollers of a central longitudinal row are advantageously staggered with respect to the lateral longitudinal row rollers in such a way as to reduce the surface of the bulges created due to the ferrostatic pressure existing in the liquid core of the product at ingot mould outlet. Furthermore, the pitch between the adjacent rollers is advantageously always of different values so as to not cause the buckling of the bulges with a single frequency. | 01-22-2009 |
20090013828 | Reduction Process and Plant - Reduction process and relative plant for the production of metallic iron by means of the direct reduction of iron ore, in which a reduction shaft is connected to a source of reducing gas obtained from the gasification of coal. The process advantageously comprises a step in which a portion or all of the synthesis gas entering the plant circuit is processed to separate the methane from the rest of the components of said synthesis gas. The advantageous management of the extracted methane enables the entire reduction process to be optimized, making the efficiency of the process independent of the methane content in the original synthesis gas and making it possible to control the carbon content of the product more accurately and more easily. | 01-15-2009 |
20080295990 | Oscillating Table - Oscillating table in which the oscillation drive, comprising a hydraulic actuator, transmits the oscillating motion to the mould via a spring subject to bending stress, for example a fitted rod. The body of the hydraulic actuator is also anchored to the floor by means of a fitted spring subjected to bending stress. Thus thanks to the absence of any mechanical bearings in the drive mechanism, all disadvantageous movements caused as a result of bearing play, which increases at high oscillation frequencies, are eliminated. Moreover, the use of mould guide elements having a much simpler design and consisting of straightforward bars, also ensures greater guidance precision and enables a reduction in the oscillation marks on the cast product, a reduction that is even more noticeable when working at higher oscillation frequencies. Advantageously, the presence of an anti-roll device, consisting of two or more pairs of bars, for example two pairs, ensures good torsional rigidity of the table. | 12-04-2008 |
20080257524 | Delivery Device and Method for Using the Same - Discharge device for discharging liquid steel into a roller crystallizer for the continuous casting of thin strip capable of reducing turbulence at the meniscus to a minimum so as to eliminate the relative defects on the cast strip by passing the steel between two crystallizer rollers. A relative casting process is also described, said process providing for particular expedients for improving the steel feeding from the tundish to the crystallizer. Advantageously, the feeding of guided steel jet streams inside the nozzle, or delivery nozzle, eliminates the disturbance at the meniscus caused by the air bubbles which form when free-falling jet streams come into contact with the air, as occurs in the known devices and plants. | 10-23-2008 |
20080217456 | Coiling Method and Device for Rolled or Drawn Long Products - Coiling method and device (“R”) for a long product ( | 09-11-2008 |