ES2637824T3 - Method and apparatus for producing steel intermediate products - Google Patents
Method and apparatus for producing steel intermediate products Download PDFInfo
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- ES2637824T3 ES2637824T3 ES15189247.8T ES15189247T ES2637824T3 ES 2637824 T3 ES2637824 T3 ES 2637824T3 ES 15189247 T ES15189247 T ES 15189247T ES 2637824 T3 ES2637824 T3 ES 2637824T3
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 40
- 239000010959 steel Substances 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 31
- 239000013067 intermediate product Substances 0.000 title description 2
- 238000005096 rolling process Methods 0.000 claims abstract description 90
- 238000004519 manufacturing process Methods 0.000 claims abstract description 23
- 239000007788 liquid Substances 0.000 claims abstract description 11
- 238000003475 lamination Methods 0.000 claims abstract description 5
- 238000002844 melting Methods 0.000 claims abstract description 3
- 230000008018 melting Effects 0.000 claims abstract description 3
- 238000009749 continuous casting Methods 0.000 claims description 24
- 230000007246 mechanism Effects 0.000 claims description 15
- 229910001018 Cast iron Inorganic materials 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 7
- 238000010030 laminating Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 4
- 238000005098 hot rolling Methods 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims description 3
- 238000003303 reheating Methods 0.000 claims description 3
- 239000012943 hotmelt Substances 0.000 abstract 1
- 238000005266 casting Methods 0.000 description 16
- 239000000047 product Substances 0.000 description 11
- 230000008859 change Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910000760 Hardened steel Inorganic materials 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/1206—Accessories for subsequent treating or working cast stock in situ for plastic shaping of strands
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/46—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
- B21B1/463—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting in a continuous process, i.e. the cast not being cut before rolling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
- B21B13/08—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with differently-directed roll axes, e.g. for the so-called "universal" rolling process
- B21B13/12—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with differently-directed roll axes, e.g. for the so-called "universal" rolling process axes being arranged in different planes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
- B21B13/22—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories for rolling metal immediately subsequent to continuous casting, i.e. in-line rolling of steel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/46—Roll speed or drive motor control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/001—Continuous casting of metals, i.e. casting in indefinite lengths of specific alloys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/1226—Accessories for subsequent treating or working cast stock in situ for straightening strands
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/14—Plants for continuous casting
- B22D11/142—Plants for continuous casting for curved casting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/02—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling heavy work, e.g. ingots, slabs, blooms, or billets, in which the cross-sectional form is unimportant ; Rolling combined with forging or pressing
- B21B1/04—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling heavy work, e.g. ingots, slabs, blooms, or billets, in which the cross-sectional form is unimportant ; Rolling combined with forging or pressing in a continuous process
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/16—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section
- B21B1/18—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section in a continuous process
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
- B21B13/005—Cantilevered roll stands
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/02—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling heavy work, e.g. ingots, slabs, blooms, or billets, in which the cross-sectional form is unimportant ; Rolling combined with forging or pressing
- B21B2001/022—Blooms or billets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
- B21B2013/006—Multiple strand rolling mills; Mill stands with multiple caliber rolls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2203/00—Auxiliary arrangements, devices or methods in combination with rolling mills or rolling methods
- B21B2203/06—Cassettes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2261/00—Product parameters
- B21B2261/02—Transverse dimensions
- B21B2261/10—Cross-sectional area
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
- B21B31/07—Adaptation of roll neck bearings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B35/00—Drives for metal-rolling mills, e.g. hydraulic drives
- B21B35/02—Drives for metal-rolling mills, e.g. hydraulic drives for continuously-operating mills
- B21B35/04—Drives for metal-rolling mills, e.g. hydraulic drives for continuously-operating mills each stand having its own motor or motors
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
- Continuous Casting (AREA)
Abstract
Un método para producir productos intermedios de acero en forma continúa, que comprende: fundir acero líquido en una pluralidad de moldes (116) para producir una pluralidad (118) de cordones de palancones continuamente; y cargar uno o más de los cordones de palancones en línea a trenes (150) de laminación respectivos configuradas para que se puedan enganchar selectivamente para laminar en caliente los cordones de palancones de entrada fundidas en caliente para producir palanquillas laminadas, caracterizado porque: los trenes (150) de laminación comprenden dos o más soportes (152) de tren de laminación en voladizo en el que los soportes de rodamiento para los rodillos (154) de cada soporte soportan los rodillos en solo un extremo, el método se caracteriza adicionalmente porque el ángulo de los ejes de los rodillos del primer soporte de tren de laminación en voladizo para un palancón dado se fija a 45 grados hacia la superficie superior del palancón y en el que el ángulo de los ejes del posterior soporte (152) de tren de laminación se fija a 90 grados uno del otroA method for producing intermediate steel products in a continuous manner, comprising: melting liquid steel in a plurality of molds (116) to produce a plurality (118) of palancon cords continuously; and loading one or more of the lanes of in-line longliners to respective rolling mills (150) configured so that they can be selectively hooked to hot-laminate the hot-melt inlet billows to produce laminated billets, characterized in that: the trains (150) of lamination comprise two or more supports (152) of cantilever lamination train in which the bearing supports for the rollers (154) of each support support the rollers at only one end, the method is further characterized in that the Angle of the axes of the rollers of the first cantilever rolling mill support for a given billet is set at 45 degrees towards the upper surface of the billet and at which the angle of the axles of the subsequent rolling rail support (152) it is set at 90 degrees from each other
Description
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DESCRIPCIONDESCRIPTION
Metodo y aparato para producir productos intermedios de acero Campo de la tecnologfaMethod and apparatus for producing intermediate steel products Technology field
La presente invencion se refiere en general metodos y aparatos para producir productos intermedios de acero. En particular, la presente invencion se refiere a metodos y aparatos para laminacion en lmea de palanquillas de palancones colados continuamente. Un metodo y aparato de acuerdo con los preambulos de la reivindicacion 1 y reivindicacion 13 respectivamente se conocen por ejemplo del documento US 2002/189075 A1.The present invention generally relates to methods and apparatus for producing intermediate steel products. In particular, the present invention relates to methods and apparatus for continuous rolling of billet from billet of billet. A method and apparatus according to the preambles of claim 1 and claim 13 respectively are known for example from US 2002/189075 A1.
AntecedenteAntecedent
Se instalan trenes de laminacion para producir productos de acero acabados, por ejemplo, para mercados locales en pafses en desarrollo y mercados cercanos para productos de acero terminados, tal como barras de acero suave para uso en construcciones civiles. En pafses en donde no existe produccion significativa de productos de acero semiterminados (colada), estos trenes de laminacion normalmente se basaran en importar palanquillas de acero de otros pafses que tienen una mayor capacidad de fabricacion siderurgica, para terminar sus mercados locales. Esto es frecuente en muchos pafses en desarrollo porque incluso la produccion local de productos intermedios de acero, a partir de acero reciclado, no es posible debido a la escasez de chatarra de acero generada localmente, y las dificultades para proporcionar un suministro confiable y rentable de energfa electrica para operar un horno de arco electrico. Por lo tanto, las palanquillas importadas son “nuevamente laminadas” para producir los productos de acero acabados. Estos “trenes de laminacion” normalmente tienen un tamano de palanquilla inicial de hasta 150 mm por 150 mm cuadrado (225 centfmetros cuadrados) y normalmente son muchos mas pequenos y tienen menores capacidades de produccion en terminos de variedad de productos de entrada y salida, y velocidad de produccion, en comparacion con los trenes de laminacion mas grandes y dedicados.Rolling mills are installed to produce finished steel products, for example, for local markets in developing countries and nearby markets for finished steel products, such as mild steel bars for use in civil constructions. In countries where there is no significant production of semi-finished steel products (casting), these rolling mills will normally be based on importing steel billets from other countries that have a greater capacity for steel manufacturing, to finish their local markets. This is common in many developing countries because even the local production of intermediate steel products, from recycled steel, is not possible due to the shortage of locally generated scrap steel, and the difficulties in providing a reliable and cost-effective supply of electric energy to operate an electric arc furnace. Therefore, imported billets are "newly rolled" to produce finished steel products. These "rolling mills" normally have an initial billet size of up to 150 mm per 150 mm square (225 square centimeters) and are usually much smaller and have lower production capacities in terms of a variety of input and output products, and production speed, compared to the largest and most dedicated rolling mills.
En la decada del 60, la produccion de palanquillas se alcanzo mediante laminacion de lingotes, cada uno pesa 10 toneladas o mas y dichos lingotes se laminan en palanquillas en un tren de laminacion de palanquilla separado. Este metodo anticuado no tiene problema con la laminacion de los lingotes en los 150 mm necesarios para los trenes de laminacion descritos anteriormente. Sin embargo, dicho metodo de produccion de palanquilla resulta en altas perdidas finales y tiene costes de laminacion adicionales, y de esta manera no es particularmente efectivo o eficiente.In the 60s, billet production was achieved by ingot rolling, each weighing 10 tons or more and said ingots are rolled into billet in a separate billet rolling train. This outdated method has no problem with the rolling of the ingots in the 150 mm necessary for the rolling mills described above. However, said billet production method results in high final losses and has additional rolling costs, and thus is not particularly effective or efficient.
Desde la decada del 70, los procesos de “Colada continua” ha reemplazado completamente la practica de fundir lingotes viejos para producir productos de acero intermedios, por lo tanto, ahora las palanquillas redondas se funden normalmente directamente de acero lfquido utilizando una “Maquina de Fundicion Continua”, a diferencia de ser laminado a partir de lingotes fundidos.Since the 1970s, the “Continuous Casting” processes have completely replaced the practice of melting old ingots to produce intermediate steel products, therefore, now the round billets are normally melted directly from liquid steel using a “Casting Machine Continue ”, unlike being rolled from molten ingots.
Con las actuales laminadoras de acero de gran capacidad, que producen, digamos, mas de 2 millones de toneladas de productos de acero anualmente, las palanquillas continuamente moldeadas tienen una seccion transversal mucho mas grande que es capaz de ser laminadas nuevamente por un “tren de laminacion”. Por ejemplo, las maquinas de fundicion continua que producen cordones de “palanquillas” que tienen una seccion transversal mayor que 150 mm por 150 mm cuadrado y hasta 400 mm por 400 mm cuadrado (normalmente 240 mm por 240 mm cuadrado o en el caso de un tubo de maquina de fundicion continua, 250 mm redondo) ahora son comunes en las instalaciones siderurgicas mas grandes. Estos palancones son mas grandes que la palanquilla de tamano maximo normal de 150 mm por 150 mm cuadrado que se puede laminar en los trenes de laminacion descritos anteriormente. El documento U.S. 2002/189075 A1 proporciona determinadas divulgaciones en el campo de la produccion de productos de acero.With today's high-capacity steel mills, which produce, say, more than 2 million tons of steel products annually, continuously molded billets have a much larger cross section that is capable of being rolled again by a “train of lamination". For example, continuous casting machines that produce “billet” cords that have a cross section greater than 150 mm by 150 mm square and up to 400 mm by 400 mm square (usually 240 mm by 240 mm square or in the case of a continuous casting machine tube, 250 mm round) are now common in larger steel installations. These billets are larger than the normal maximum size billet of 150 mm by 150 mm square that can be laminated in the rolling mills described above. The U.S. document 2002/189075 A1 provides certain disclosures in the field of steel products production.
Es en este contexto que se concibe la presente invencion.It is in this context that the present invention is conceived.
Resumen de la invencionSummary of the invention
En vista de un aspecto, la presente invencion proporciona un metodo para producir continuamente productos intermedios de acero como se reivindica en la reivindicacion 1.In view of one aspect, the present invention provides a method for continuously producing steel intermediate products as claimed in claim 1.
De acuerdo con la presente invencion, el exceso de produccion de palancones de acero por una maquina fundicion acero continuo de gran capacidad se puede convertir directamente a palanquillas por un proceso de laminacion en caliente en lmea, sin la necesidad de calentamiento adicional o recalentamiento de los palancones antes de laminacion. En esta forma, no hay necesidad de laminar una palanquilla separada para producir palanquillas nuevamente laminadas de los palancones fundidos continuamente, y como resultado, esta inversion adicional, manejo doble, dotacion extra, perdidas por laminado y calefaccion que resultanan de laminacion de longitudes de palancones recalentados y que podnan hacer que dicha produccion de palanquillas se evite. De esta forma, se permite que las maquinas de fundicion continua de multiples cordones de gran capacidad produzcan directamente y eficientemente palanquillas producidas por relaminacion mediante un proceso de laminacion en lmea al mismo tiempo que producen mayores palancones. Al permitir, preferiblemente la produccion seleccionable de palanquillasIn accordance with the present invention, the excess production of steel billets by a large capacity continuous steel casting machine can be converted directly to billets by a hot rolling process in line, without the need for additional heating or reheating of the longliners before rolling. In this way, there is no need to laminate a separate billet to produce newly laminated billets from the continuously molten billets, and as a result, this additional investment, double handling, extra endowment, rolling losses and heating resulting from rolling of billet lengths overheated and that could cause such billet production to be avoided. In this way, it is allowed that the machines of continuous casting of multiple cords of great capacity produce directly and efficiently billets produced by relamination through a process of rolling in line at the same time that they produce larger billets. By allowing, preferably the selectable billet production
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facilmente exportables directamente de cordones de palancones fundidas continuamente, las instalaciones de produccion intermedias de acero de gran capacidad pueden exportar los excedentes de produccion para uso en trenes de laminacion en pa^ses que dependen de la importacion de palanquillas de acero.Easily exportable directly from continuously cast billet cords, intermediate large-capacity steel production facilities can export surplus production for use in rolling mills in countries that depend on the importation of steel billets.
En realizaciones, los cordones de palancones fundidas se cargan en lmea en los trenes de laminacion aun calientes provenientes de la fundicion continua, y en el que se realiza entre la fundicion y la laminacion en caliente.In embodiments, the castings of molten billets are loaded into the hot rolling mills from the continuous casting, and in which it is made between the casting and the hot rolling.
Preferiblemente, los cordones de palancones tienen un area de seccional transversal por encima de 230 centimetros cuadrados, y preferiblemente las palanquillas laminadas tienen un area de seccional transversal por debajo de 230 centimetros cuadrados. Los palancones normalmente tienen dimensiones por encima de 150 mm cuadrado (y hasta 400 mm cuadrados), las palanquillas laminadas tienen una dimension por debajo de 150 mm cuadrado.Preferably, the billet cords have a cross-sectional area above 230 square centimeters, and preferably the laminated billets have a cross-sectional area below 230 square centimeters. The billets normally have dimensions above 150 mm square (and up to 400 mm square), the rolled billets have a dimension below 150 mm square.
En realizaciones el metodo comprende adicionalmente:In embodiments the method further comprises:
Cargar los cordones de palancones a traves de laminadores de enderezamiento respectivos; operar cada tren de laminacion a una velocidad basado en una velocidad de referencia de los laminadores de enderezamiento del cordon de palanquilla particular cargada en ese tren de laminacion. Utilizando la velocidad de los laminadores de enderezamiento individuales para cada cordon de colada continua como una velocidad de referencia para la velocidad de laminacion del tren de laminacion para ese cordon en esta forma permite que las palanquillas se laminen en caliente confiablemente y se conserva el equilibrio de flujo material en una base de cordon a cordon.Load the laces of longliners through respective straightening mills; operate each rolling mill at a speed based on a reference speed of the straightening laminators of the particular billet cord loaded in that rolling mill. Using the speed of the individual straightening mills for each continuous casting cord as a reference speed for the rolling speed of the rolling mill for that cord in this way allows the billets to be reliably hot rolled and the balance of material flow in a cord-to-cord base.
El uso de soportes del tren de laminacion en voladizo permite la laminacion de cada cordon de palancones que no interfieren con el cordon adyacente de la maquina de fundicion de palancones de multiples cordones, y permite que la longitud del tren de laminacion a traves de todos los soportes se mantenga baja y se posicione lo mas cerca como sea posible a la salida de los cordones de la maquina de fundicion continua, permitiendo que los palancones se laminen mientras que aun estan calientes del proceso de fundicion, y por lo tanto se tienen que enfriar. Los trenes de laminacion convencionales, en los que los rodillos estan “simplemente soportados” con soportes de rodamientos en ambos extremos de los ejes de rodillos, sena muy grande para ajustarse entre los cordones adyacentes en la salida de la maquina de fundicion continua y de esta manera no se podna utilizar para laminar los palancones fundidos si los cordones se separan en la salida de la maquina de fundicion continua o se mueven mas lejos de alguna manera por los rodillos. Esto simplemente no es practico.The use of cantilever laminating train supports allows the lamination of each cord of longliners that do not interfere with the adjacent cord of the multi-strand longliner casting machine, and allows the length of the rolling mill across all The supports are kept low and positioned as close as possible to the exit of the cords of the continuous casting machine, allowing the billets to be laminated while they are still hot from the casting process, and therefore have to cool . Conventional rolling mills, in which the rollers are "simply supported" with bearing supports at both ends of the roller shafts, will be too large to fit between the adjacent cords at the exit of the continuous casting machine and of this This way, it cannot be used to laminate cast iron levers if the cords are separated at the exit of the continuous casting machine or moved further in some way by the rollers. This is simply not practical.
En realizaciones el mecanismo de accionamiento y el motor para cada soporte de tren de laminacion de voladizo se disponen en el exterior de los cordones mas externas producidas por la fundicion continua. De esta manera, el mecanismo de accionamiento voluminoso y los componentes de motor no ocuparan el espacio inmediatamente por encima o por debajo de los cordones de palancones, de tal manera que no se interfieren con los palancones fundidos.In embodiments, the drive mechanism and the motor for each cantilever laminating train support are arranged outside the outermost cords produced by continuous casting. In this way, the bulky drive mechanism and the engine components will not occupy the space immediately above or below the billet cords, such that they do not interfere with the castings.
En realizaciones, el mecanismo de accionamiento o el motor para el o cada soporte de tren de laminacion en voladizo se conecta al soporte de tren de laminacion en voladizo respectivo mediante ejes largos respectivos dispuestos para separar el mecanismo de accionamiento y/o el motor de los palancones calientes. Esto permite que el equipo de accionamiento y los motores se operen lejos del ambiente de alta temperatura y que rodee inmediatamente los palancones fundidos, mejorando su vida util y confiabilidad y permite que se utilicen mecanismos y motores convencionales que no requiere que sean disenados para soportar temperaturas y ambientes extremos.In embodiments, the drive mechanism or motor for the or each cantilever rolling train support is connected to the respective cantilever rolling train support by respective long shafts arranged to separate the drive mechanism and / or the motor from the hot levers. This allows the drive equipment and motors to be operated away from the high temperature environment and immediately surrounds the castings, improving their useful life and reliability and allows conventional mechanisms and motors to be used that do not require them to be designed to withstand temperatures and extreme environments.
En realizaciones cada uno de los rodillos para un soporte de tren de laminacion en voladizo dado se acciona mediante un motor individual.In embodiments each of the rollers for a given cantilever rolling mill support is driven by an individual motor.
En realizaciones el angulo de los ejes de los soportes del tren de laminacion posteriores se fija a 90 grados entre sf. La disposicion de los soportes del tren de laminacion en voladizo permite de esta manera que los rodillos tengan acceso a los cordones de palancones desde lejos hacia los lados del palancon, reduciendo el alcance en el que los rodillos y la carcasa del tren de laminacion interfieren con el espacio que rodea inmediatamente los palancones fundidos. Adicionalmente, al alterar los ejes de los rodillos de esta forma, la carcasas del tren de laminacion y los soportes se pueden desfasar entre sf y/o posicionar alternativamente por encima y por debajo de los palancones fundidos permitiendo que los rodillos se posicionen cerca uno al otro axialmente a lo largo del cordon, permitiendo que el tren de laminacion ocupe una corta longitud a lo largo del cordon de tal manera que el cordon fundida se puede laminar a una temperatura uniforme sin refrigeracion significativa entre los soportes del tren de laminacion. En realizaciones cada tren de laminacion comprende por lo menos dos, o preferiblemente por lo menos cuatro, soportes del tren de laminacion en voladizo en lmea dispuestos para laminar gradualmente tamanos de palanquillas pequenas. En realizaciones, cada soporte de tren de laminacion funcionara en dos caras del palancon (por ejemplo, si el palancon tiene seccion transversal cuadrada de 240 mm por 240 mm) y el siguiente soporte de tren de laminacion funcionara en las dos caras opuestas, laminando los palancones fundidos en palanquillas de menor tamano.In embodiments, the angle of the axes of the rear rolling mill supports is set at 90 degrees between sf. The arrangement of the supports of the cantilever rolling mill thus allows the rollers to have access to the billet cords from far to the sides of the palancon, reducing the extent to which the rollers and the rolling mill housing interfere with the space that immediately surrounds the castings. Additionally, by altering the axes of the rollers in this way, the carcasses of the rolling mill and the supports can be offset between sf and / or alternatively positioned above and below the castings allowing the rollers to be positioned close to each other. another axially along the cord, allowing the rolling mill to occupy a short length along the string so that the molten cord can be laminated at a uniform temperature without significant cooling between the supports of the rolling mill. In embodiments, each rolling mill comprises at least two, or preferably at least four, supports of the rolling overhang rolling mill arranged to gradually laminate small billet sizes. In embodiments, each rolling mill support will operate on two sides of the palancon (for example, if the palancon has a square cross-section of 240 mm by 240 mm) and the next rolling mill support will work on the two opposite faces, rolling the castings in smaller billets.
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En realizaciones, puede no ser deseable laminar adicionalmente los cordones de palancones. Por lo tanto, los soportes en voladizo se pueden quitar de la lmea de fundicion de palancones sin interrumpir el proceso de fundicion. Los rodillos de los soportes en voladizo se separan entre sf por lo menos una distancia suficientemente amplia para que los soportes del tren de laminacion se separen del palancon y se muevan fuera de la lmea de fundicion de palancones.In embodiments, it may not be desirable to additionally laminate the billet cords. Therefore, the cantilever supports can be removed from the cast iron of longliners without interrupting the casting process. The rollers of the cantilever supports are separated from each other at least a sufficiently wide distance so that the supports of the rolling mill are separated from the palancon and moved out of the cast iron of longliners.
En realizaciones la carcasa para los soportes de rodamiento para cada soporte de tren de laminacion en voladizo se configura como un casete reemplazable, por ejemplo, que se encuentra en interfaz con el motor y el mecanismo de accionamiento. Esto facilitara el cambio rapido de los rodillos, por ejemplo, cuando se desgastan los rodillos, reduciendo el tiempo de inactividad.In embodiments, the housing for the bearing supports for each cantilever rolling train support is configured as a replaceable cassette, for example, which is in interface with the motor and the drive mechanism. This will facilitate the rapid change of the rollers, for example, when the rollers wear out, reducing downtime.
En realizaciones, el tren de laminacion y cada soporte de tren de laminacion se puede operar selectivamente para enganchar con los palancones fundidos, permitiendo que los cordones de palancones se laminen en caliente seleccionablemente opcionalmente son tamanos variables. Esto permite la salida de la maquina de fundicion continua tenga selectividad variable en tamano, permitiendo que la produccion se adapte facilmente a la demanda, por ejemplo, fluctuaciones en la demanda domestica y/o mercados de exportacion para palanquillas (laminadas) y palancones fundidos.In embodiments, the rolling mill and each rolling mill support can be selectively operated to engage with molten billets, allowing the billet cords to be hot rolled selectively are optionally variable sizes. This allows the output of the continuous casting machine to have variable selectivity in size, allowing production to adapt easily to demand, for example, fluctuations in domestic demand and / or export markets for billet (laminated) and cast iron billets.
En realizaciones se proporcionan cubiertas de aislamiento o refrigeracion protectoras alrededor de la carcasa para los soportes de rodamiento y/o el motor y/o el mecanismo de accionamiento para cada soporte de tren de laminacion en voladizo.In embodiments protective insulation or cooling covers are provided around the housing for the bearing supports and / or the motor and / or the drive mechanism for each cantilever rolling train support.
En realizaciones uno o ambos de los cordones mas externas de la pluralidad de cordones de palancones fundidos continuamente se laminan en caliente en una palanquilla. Al laminar unicamente el cordon mas externo, se minimiza el grado en el que el tren de laminacion interfiere con el espacio alrededor de los cordones de palancones fundidas, y el grado al que la laminacion de acero necesita reingeniena para acomodar el tren de laminacion. Adicionalmente, los requerimientos para los soportes del tren de laminacion son menos rigurosos que los requerimientos de espacio para laminar solamente los cordones mas externos (debido a la disponibilidad de espacio a los lados de los cordones) son menos que los requeridos para los cordones mas internas. Adicionalmente, el exceso de produccion de palancones fundidos continuamente, por ejemplo, para el mercado domestico, pueden, mediante operacion de los cordones de palancones mas externas, ser facilmente laminados en caliente en lmea en palanquillas en el proceso de fundicion continua para exportacion directa, por ejemplo, a pafses en desarrollo para volver a laminar en un tren de laminacion de palanquillas.In embodiments one or both of the outermost cords of the plurality of molten billet cords are continuously hot rolled in a billet. By only laminating the outermost cord, the degree to which the rolling mill interferes with the space around the strands of molten billets is minimized, and the degree to which steel rolling needs to be re-engineered to accommodate the rolling mill. Additionally, the requirements for rolling mill supports are less stringent than the space requirements for laminating only the outermost cords (due to the availability of space on the sides of the cords) are less than those required for the innermost cords . Additionally, the excess production of continuously molten billets, for example, for the domestic market, can, by operation of the outermost billet cords, be easily hot rolled in billet lines in the continuous casting process for direct export, for example, to developing countries to re-laminate in a billet laminating train.
Visto desde otro aspecto, la presente invencion proporciona unos aparatos como se indica en la reivindicacion 13.Seen from another aspect, the present invention provides apparatus as indicated in claim 13.
En realizaciones el aparato de fundicion continua comprende una artesa dispuesta para recolectar acero lfquido y suministrar dicho acero lfquido a una pluralidad de moldes dispuestos lado a lado para producir una pluralidad de cordones de palancones en forma continua.In embodiments, the continuous casting apparatus comprises a trough arranged to collect liquid steel and supply said liquid steel to a plurality of molds arranged side by side to produce a plurality of billet cords continuously.
En realizaciones, el aparato de fundicion continua se configura para operar en los metodos de acuerdo con las realizaciones descritas anteriormente.In embodiments, the continuous casting apparatus is configured to operate in the methods according to the embodiments described above.
Breve descripcion de los dibujosBrief description of the drawings
La invencion, se puede entender mejor con referencia a la siguiente descripcion de determinadas realizaciones de ejemplo junto con los dibujos acompanantes en los que:The invention can be better understood with reference to the following description of certain example embodiments together with the accompanying drawings in which:
La figura 1 ilustra un aparato y metodo de operacion del mismo para laminacion en lmea de palanquillas de palancones fundidos continuamente de acuerdo con una realizacion de los aspectos de la presente invencion.Figure 1 illustrates an apparatus and method of operation thereof for continuous rolling of billet billet billets in accordance with an embodiment of the aspects of the present invention.
Descripcion detallada de las realizaciones preferidasDetailed description of preferred embodiments
La descripcion detallada establecida adelante en relacion con los dibujos adjuntos esta destinada como una descripcion de las realizaciones preferidas actualmente de la invencion y no pretenden representar las unicas formas en las que se puede practicar la presente invencion. Se debe entender que las mismas funciones o funciones equivalentes se pueden lograr mediante diferentes realizaciones que se pretende esten abarcadas dentro del espmtu y el alcance de la invencion. Adicionalmente, los terminos “comprende”, “que comprende”, o cualquier otra variacion de los mismos, esta destinada a cubrir una inclusion no excluyente, de tal manera que los aparatos y etapas de metodo que comprenden una lista de elementos o etapas no incluyen unicamente aquellos elementos, sino que pueden incluir otros elementos o etapas no enumerados expresamente o inherentes. Un elemento o etapa precedida por “comprende un” no excluye, sin mas limitaciones, la existencia de elementos identicos adicionales o etapas que comprenden el elemento o etapa.The detailed description set forth below in relation to the attached drawings is intended as a description of the presently preferred embodiments of the invention and is not intended to represent the only ways in which the present invention can be practiced. It should be understood that the same functions or equivalent functions can be achieved by different embodiments that are intended to be encompassed within the scope and scope of the invention. Additionally, the terms "comprises", "comprising", or any other variation thereof, is intended to cover a non-exclusive inclusion, such that the apparatus and method steps comprising a list of elements or stages do not include only those elements, but may include other elements or stages not expressly listed or inherent. An element or stage preceded by "comprises a" does not exclude, without further limitation, the existence of additional identical elements or stages comprising the element or stage.
Con referencia ahora a la figura 1, que muestra un aparato 100 para laminacion en lmea de palanquillas de palancones fundidos continuamente de acuerdo con una realizacion de la presente invencion, una maquina 110 deReferring now to Fig. 1, which shows an apparatus 100 for continuous rolling of billet billet billets in accordance with an embodiment of the present invention, a machine 110 of
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fundicion comprende un caldero 112, artesa 114, multiples moldes 116 permanentes para formar cordones 118 y rodillos 120 de enderezamiento para enderezar los cordones.The foundry comprises a cauldron 112, trough 114, multiple permanent molds 116 to form cords 118 and straightening rollers 120 to straighten the cords.
El acero fundido es vertido dentro del caldero 112 de uno o mas hornos (no mostrados). La caldera 112 tiene en su parte inferior una abertura de tubo que se dispone por encima y drena acero lfquido en un bano de retencion o artesa 114. La artesa 114 actua como un deposito regulador y tiene buzas o aberturas de tubos en los moldes 116 permanentes. El acero lfquido drena de la artesa 114 dentro de los moldes 116 permanentes que tienen forma y se refrigeran con lfquidos para formar una carcasa externa solidificada para los cordones 118 que se forman mediante acero endurecido que cae por gravedad de la abertura superior de los moldes 116 permanentes. En este caso, se proporcionan cinco moldes 116 permanentes, pero el numero de moldes permanentes puede ser mayor o menor que esto, pero es preferiblemente por lo menos dos, e incluso mas preferiblemente mayor de dos o aun un mayor numero con el fin de dar una alta capacidad de produccion. Cada uno de los cordones 118 fundidas continuamente se pasa luego a traves de secuencias de pares de rodillos de enderezamiento individuales que grnan los cordones para extenderse en una direccion horizontal y enderezan los cordones cuando se mueven a lo largo entre los rodillos y se enfnan y solidifican adicionalmente.The molten steel is poured into the cauldron 112 of one or more furnaces (not shown). The boiler 112 has in its lower part a tube opening that is arranged above and drains liquid steel in a retention bath or trough 114. The trough 114 acts as a regulating tank and has bushes or tube openings in the permanent molds 116 . The liquid steel drains from the trough 114 into the permanent molds 116 that are shaped and cooled with liquids to form a solidified outer shell for the cords 118 that are formed by hardened steel that falls by gravity from the upper opening of the molds 116 permanent In this case, five permanent molds 116 are provided, but the number of permanent molds may be greater or less than this, but it is preferably at least two, and even more preferably greater than two or even a greater number in order to give A high production capacity. Each of the continuously cast cords 118 is then passed through sequences of individual straightening roller pairs that grind the cords to extend in a horizontal direction and straighten the cords when they move along between the rollers and cool and solidify further.
La maquina 110 de fundicion continua, y los moldes 116 permanentes en particular se configuran de tal manera que los cordones 118 se forman como palancones que tienen un area de seccion transversal por encima de 230 centimetros cuadrados, en este caso 240 mm por 240 mm cuadrado.The continuous casting machine 110, and the permanent molds 116 in particular are configured in such a way that the cords 118 are formed as billets having a cross-sectional area above 230 square centimeters, in this case 240 mm by 240 mm square .
La maquina 110 de fundicion continua tiene una alta capacidad de produccion de digamos 2 millones de toneladas al ano, una velocidad de produccion de por lo menos 4 metros por minuto, y puede operar continuamente durante una serie de anos de produccion entre servicios. Cuando esta capacidad de produccion de palancones fundidos continuamente excede la demanda, por ejemplo en el mercado domestico, que conducina a un aumento en los inventarios de palancones fundidos, de acuerdo con la presente invencion, el aparato 100 opera para laminar una o mas de los cordones 118 de palancones en palanquillas 140 mediante la operacion de trenes 150 de laminacion en lmea, que pueden por ejemplo ser exportados a mercados de pafses en desarrollo para uso directo en trenes de laminacion. Las palanquillas laminadas se forman para que tengan un area de seccional transversal por debajo de 230 centimetros cuadrados, en este caso 150 mm por 150 mm cuadrado.The continuous casting machine 110 has a high production capacity of say 2 million tons per year, a production speed of at least 4 meters per minute, and can operate continuously for a series of production years between services. When this production capacity of molten longliners continuously exceeds the demand, for example in the domestic market, which leads to an increase in inventories of molten longliners, in accordance with the present invention, the apparatus 100 operates to laminate one or more of the cords 118 of billet in billet 140 by means of the operation of trains 150 of rolling mill, which can for example be exported to markets of developing countries for direct use in rolling mills. Laminated billets are formed to have a cross-sectional area below 230 square centimeters, in this case 150 mm by 150 mm square.
El aparato 100 se dispone de tal manera que los cordones 118 de palancones fundidos se cargan en lmea a los trenes 140 de laminacion en uso que aun estan calientes provenientes de la fundicion continua. No se proporcionan aparatos dispuestos para realizar recalentamiento adicional de los palancones entre fundicion y laminado en caliente.The apparatus 100 is arranged in such a way that the cords 118 of molten billets are loaded onto the rolling mills 140 in use that are still hot from the continuous casting. Apparatus arranged for additional reheating of the levers between cast iron and hot rolled is not provided.
Los trenes 150 de laminacion en lmea comprenden una pluralidad de soporte 152 de trenes de laminacion en voladizo en el que los soportes de rodamientos para los rodillos 154 de cada soporte soportan los rodillos solamente en un extremo. El mecanismo de accionamiento y el motor 156 para cada soporte 152 de tren de laminacion en voladizo se dispone en el exterior del cordon 118 mas externa producida por la fundicion continua. En diferentes realizaciones a aquellas mostradas en la figura 1, el mecanismo de accionamiento y/o motor 156 para los soportes 152 de tren de laminacion en voladizo se pueden conectar a los soportes 152 tren de laminacion en voladizo respectivos mediante ejes largos respectivos dispuestos con el fin de separar el mecanismo de accionamiento y/o motor 156 de los palancones 118 calientes. Para reducir adicionalmente los efectos, en otras realizaciones se pueden proporcionar recubrimientos aislantes o refrigerantes protectores alrededor de la carcasa 158 para los soportes de rodamiento y/o el motor y/o el mecanismo 156 de accionamiento para cada de soporte 152 de tren de laminacion en voladizo. Los motores se pueden disponer para accionar individualmente cada uno de los rodillos 154 para un soporte 152 de tren de rodamiento en voladizo dado.The rolling mills 150 comprise a plurality of support 152 of cantilever rolling trains in which the bearing supports for the rollers 154 of each support support the rollers only at one end. The drive mechanism and the motor 156 for each cantilever rolling rail support 152 is disposed outside the outermost cord 118 produced by continuous casting. In different embodiments to those shown in Fig. 1, the drive and / or motor mechanism 156 for the cantilever rolling mill supports 152 can be connected to the respective cantilever rolling mill supports 152 by respective long shafts arranged with the in order to separate the drive and / or motor mechanism 156 from the hot levers 118. To further reduce the effects, in other embodiments protective insulating or cooling coats may be provided around the housing 158 for the bearing supports and / or the motor and / or the drive mechanism 156 for each of the rolling mill support 152 in cantilever The motors may be arranged to individually drive each of the rollers 154 for a given cantilever undercarriage support 152.
Por motivos de claridad, en la figura 1, el segundo soporte 152 de tren de laminacion en voladizo de cada tren de laminacion se extrae con el mecanismo de accionamiento y el motor 156 y la carcasa 158 por debajo de los cordones 118 a nivel del piso. Sin embargo, en otras realizaciones, para evitar la acumulacion de incrustaciones en la maquinaria, se pueden disponer trenes de laminacion 150 se de tal manera que el mecanismo de accionamiento y el motor 156 y la carcasa 158 de los soportes 152 de tren de laminacion en voladizos nunca se posicionen por debajo de los cordones 118, por ejemplo, al posicionar determinados componentes por encima del nivel del piso.For the sake of clarity, in Figure 1, the second cantilever mill support 152 of each rolling mill is extracted with the drive mechanism and motor 156 and housing 158 below the cords 118 at ground level . However, in other embodiments, to prevent the build-up of scale in the machinery, rolling mills 150 can be arranged such that the drive mechanism and the motor 156 and the housing 158 of the rolling mill supports 152 in Overhangs are never positioned below cords 118, for example, when positioning certain components above floor level.
La carcasa 158 para los soportes de rodamiento para cada soporte 152 de tren de laminacion en voladizo se configura como un casete reemplazable, para facilitar un rapido cambio de los rodillos, por ejemplo, cuando se desgastan, reduciendo el tiempo de inactividad.The housing 158 for the bearing supports for each cantilever rolling support 152 is configured as a replaceable cassette, to facilitate a rapid change of the rollers, for example, when worn, reducing downtime.
Cada tren 150 de laminacion (para cada cordon) comprende dos soportes 152 de tren de laminacion en voladizo en lmea. En otras realizaciones, se proporcionan mas de dos o preferiblemente por lo menos cuatro, soportes del tren de laminacion en voladizo, dispuesto para laminar gradualmente tamanos de palanquillas pequenas. El angulo de los ejes de los rodillos del primer soporte de tren de laminacion en voladizo para un palancon dado se fija a 45 grados hacia la superficie superior del palancon. El angulo de los ejes de los soportes del tren de laminacion posterior se fija a 90 grados entre srEach rolling mill 150 (for each cord) comprises two brackets 152 of the rolling cantilever rolling mill. In other embodiments, more than two or preferably at least four, cantilever mill supports, provided to gradually laminate small billet sizes are provided. The angle of the axes of the rollers of the first cantilever rolling train support for a given palancon is set at 45 degrees towards the upper surface of the palancon. The angle of the axles of the rear rolling mill supports is set at 90 degrees between sr
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Cada tren 150 de laminacion se configura para operar a una velocidad basado en una velocidad de referencia de los rodillos de enderezamiento del cordon 118 de palancon particular cargada a ese tren de laminacion. Esto asegura un equilibrio del flujo de material a traves de trenes 150 de laminacion.Each rolling mill 150 is configured to operate at a speed based on a reference speed of the straightening rollers of the particular palancon cord 118 loaded to that rolling mill. This ensures a balance of material flow through rolling mills 150.
Como se muestra en la figura 1, tanto los cordones mas externos de la pluralidad de cordones 118 de palancon fundidas continuamente se laminan calientes en una palanquilla. Los trenes 150 de laminacion en lmea estan en posicion y operan continuamente, de tal manera que siempre se producen palanquillas laminadas. El tren 150 de laminacion se puede enganchar selectivamente de tal manera que la produccion de palanquillas puede ser sensible a variacion en la demanda para palanquillas laminadas y palancones fundidos para volver a laminacion. Por lo tanto, los soportes en voladizo se pueden mover fuera de la lmea de la fundicion de palancones sin interrumpir el proceso de fundicion. Los rodillos 154 de los soportes en voladizo se separan entre si por lo menos una distancia suficientemente amplia para que el soporte 150 del tren de rodamiento despeje los palancones y se muevan afuera de la lmea de fundicion de palancones.As shown in Figure 1, both the outermost cords of the plurality of molten palancon cords 118 are continuously laminated hot in a billet. The rolling mills 150 are in position and operate continuously, such that laminated billets are always produced. The rolling mill 150 can be selectively engaged in such a way that the production of billets can be sensitive to variation in demand for rolled billets and cast billets to return to rolling. Therefore, the cantilever supports can move out of the billet casting line without interrupting the casting process. The rollers 154 of the cantilever supports are separated from each other at least a sufficiently wide distance for the support 150 of the undercarriage to clear the levers and move out of the cast iron of the longliners.
La invencion se puede aplicar no solo a palancones cuadrados, sino tambien a palancones redondos para los cuales se necesitan proporcionan moldes permanentes y rodillos de enderezamiento. La seccion de paso de rodillo se necesita ajustar de acuerdo con lo anterior para producir palanquillas de seccion transversal cuadrada deseada (u otras).The invention can be applied not only to square levers, but also to round levers for which they are needed provide permanent molds and straightening rollers. The roller passage section needs to be adjusted in accordance with the foregoing to produce billets of the desired square cross section (or others).
En una realizacion adicional de la presente invencion, los soportes se funden en un proceso de secuencia de fundicion continua. Este proceso permite diferentes temperaturas de acero lfquido que se funden continuamente, es decir, sin interrupcion. Este proceso aumenta la productividad al eliminar la necesidad de prepararse para empezar un nuevo proceso de fundicion individual cada vez. A traves del uso de soportes del tren de laminacion en voladizo ajustables la presente invencion permite que se ajuste el ancho de los palancones y que se pueda fundir continuamente acero lfquido a diferentes temperaturas. El acero de diferentes temperaturas se puede utilizar al reemplazar la artesa que comprende el acero de una diferente temperatura.In a further embodiment of the present invention, the supports are fused in a continuous casting sequence process. This process allows different liquid steel temperatures that melt continuously, that is, without interruption. This process increases productivity by eliminating the need to prepare to start a new individual casting process each time. Through the use of adjustable cantilever train supports the present invention allows the width of the levers to be adjusted and liquid steel to be melted continuously at different temperatures. Steel of different temperatures can be used when replacing the trough that comprises steel of a different temperature.
La descripcion de las realizaciones preferidas de la presente invencion se ha presentado para propositos de ilustracion y descripcion, pero no pretende ser exhaustiva o limitar la invencion a las formas divulgadas. Se apreciara por aquellos expertos en la tecnica que se pueden hacer cambios en las realizaciones descritas anteriormente sin apartarse del alcance de la presente invencion como se define por las reivindicaciones adjuntas. Se entiende, por lo tanto, que esta invencion no se limita a las realizaciones particulares divulgadas, si no que cubre las modificaciones dentro del alcance de la presente invencion como se define por las reivindicaciones adjuntas.The description of the preferred embodiments of the present invention has been presented for purposes of illustration and description, but is not intended to be exhaustive or limit the invention to the disclosed forms. It will be appreciated by those skilled in the art that changes can be made in the embodiments described above without departing from the scope of the present invention as defined by the appended claims. It is understood, therefore, that this invention is not limited to the particular embodiments disclosed, but that it covers the modifications within the scope of the present invention as defined by the appended claims.
Claims (14)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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GB201417999 | 2014-10-10 | ||
GB1417999.8A GB2531073A (en) | 2014-10-10 | 2014-10-10 | Method and apparatus for producing steel intermediate products |
GB201517278 | 2015-09-30 | ||
GB1517278.6A GB2531164B (en) | 2014-10-10 | 2015-09-30 | Method and apparatus for producing steel intermediate products |
Publications (1)
Publication Number | Publication Date |
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ES2637824T3 true ES2637824T3 (en) | 2017-10-17 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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ES15189247.8T Active ES2637824T3 (en) | 2014-10-10 | 2015-10-09 | Method and apparatus for producing steel intermediate products |
Country Status (9)
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US (1) | US20160101464A1 (en) |
EP (1) | EP3006123B1 (en) |
CN (1) | CN105499271B (en) |
ES (1) | ES2637824T3 (en) |
GB (2) | GB2531073A (en) |
HK (1) | HK1220164A1 (en) |
PL (1) | PL3006123T3 (en) |
PT (1) | PT3006123T (en) |
WO (1) | WO2016055813A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107552750B (en) * | 2017-08-07 | 2023-05-23 | 中冶连铸技术工程有限责任公司 | Multi-stream continuous casting machine capable of producing extra-large section special-shaped blank or plate blank and production method |
CN110039019B (en) * | 2019-04-18 | 2021-06-18 | 河南科技大学 | Multi-path parallel casting and rolling method, casting and rolling system and melt feeding device for casting and rolling |
CN114713631B (en) * | 2022-05-18 | 2024-01-12 | 首钢长治钢铁有限公司 | Rolling production system integration |
Family Cites Families (10)
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GB1288934A (en) * | 1969-05-05 | 1972-09-13 | ||
US3945234A (en) * | 1975-01-02 | 1976-03-23 | Rolf Steinbock | Tandem rolling mill arrangement |
JPS5514134A (en) * | 1978-07-14 | 1980-01-31 | Toshiba Corp | Producing apparatus of steel bar product |
JPS55112105A (en) * | 1979-02-20 | 1980-08-29 | Toshiba Corp | Manufacturing apparatus for steel bar |
DD158312A3 (en) * | 1980-12-11 | 1983-01-12 | Peter Kletzin | INTERNAL AND EXTERNAL TOOLING FOR DRIVING A SPINDLE WHEEL TROLLEY |
ITPN20010012A1 (en) * | 2001-02-15 | 2002-08-16 | Sms Demag Aktiengesellshaft | COMPACT LAMINATION BLOCK FOR TWO PARALLEL LINES. |
ITUD20010098A1 (en) * | 2001-05-25 | 2002-11-25 | Sms Demag Aktiengesellshaft | PERFECTED CONTINUOUS CASTING AND HOT ROLLING PLANT FOR THE DIVERSIFIED PARALLEL PRODUCTION OF BARS OR WIRES |
DE102009050710B4 (en) * | 2009-10-26 | 2016-08-04 | Sms Group Gmbh | Wire rolling stand with single drive |
ES2734851T3 (en) * | 2010-07-26 | 2019-12-12 | Primetals Tech Italy S R L | Apparatus and method for the production of elongated metal products |
CN103480647B (en) * | 2013-09-18 | 2016-03-23 | 陕西钢铁集团有限公司 | A kind of device and production method thereof of producing reinforcing bar without heating low temperature Direct Rolling small billet |
-
2014
- 2014-10-10 GB GB1417999.8A patent/GB2531073A/en not_active Withdrawn
-
2015
- 2015-09-30 GB GB1517278.6A patent/GB2531164B/en not_active Expired - Fee Related
- 2015-10-09 ES ES15189247.8T patent/ES2637824T3/en active Active
- 2015-10-09 US US14/879,443 patent/US20160101464A1/en not_active Abandoned
- 2015-10-09 PT PT151892478T patent/PT3006123T/en unknown
- 2015-10-09 EP EP15189247.8A patent/EP3006123B1/en not_active Not-in-force
- 2015-10-09 PL PL15189247T patent/PL3006123T3/en unknown
- 2015-10-09 WO PCT/GB2015/052975 patent/WO2016055813A1/en active Application Filing
- 2015-10-12 CN CN201510655041.9A patent/CN105499271B/en not_active Expired - Fee Related
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2016
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Also Published As
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GB2531164A (en) | 2016-04-13 |
HK1220164A1 (en) | 2017-04-28 |
EP3006123A1 (en) | 2016-04-13 |
PT3006123T (en) | 2017-08-28 |
WO2016055813A1 (en) | 2016-04-14 |
CN105499271A (en) | 2016-04-20 |
GB201517278D0 (en) | 2015-11-11 |
CN105499271B (en) | 2018-04-20 |
EP3006123B1 (en) | 2017-08-02 |
US20160101464A1 (en) | 2016-04-14 |
GB2531073A (en) | 2016-04-13 |
GB2531164B (en) | 2016-10-12 |
GB201417999D0 (en) | 2014-11-26 |
PL3006123T3 (en) | 2018-01-31 |
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