ES2335109T3 - PROCEDURE FOR THE MANUFACTURE OF CALIBRATED STEEL BARS FREE OF DEFECTS. - Google Patents
PROCEDURE FOR THE MANUFACTURE OF CALIBRATED STEEL BARS FREE OF DEFECTS. Download PDFInfo
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- ES2335109T3 ES2335109T3 ES05701668T ES05701668T ES2335109T3 ES 2335109 T3 ES2335109 T3 ES 2335109T3 ES 05701668 T ES05701668 T ES 05701668T ES 05701668 T ES05701668 T ES 05701668T ES 2335109 T3 ES2335109 T3 ES 2335109T3
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- bars
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/04—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of bars or wire
- B21C37/045—Manufacture of wire or bars with particular section or properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C43/00—Devices for cleaning metal products combined with or specially adapted for use with machines or apparatus provided for in this subclass
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Extraction Processes (AREA)
- Wire Processing (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
- Metal Rolling (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- General Factory Administration (AREA)
- Forging (AREA)
Abstract
Description
Procedimiento para la fabricación de barras de acero calibradas libres de defectos.Procedure for the manufacture of bars calibrated steel free of defects.
La presente invención está destinada a dar a conocer un procedimiento para la fabricación de barras de acero calibradas libres de defectos, así como la instalación industrial que permite llevar a cabo el mencionado procedimiento.The present invention is intended to give know a procedure for the manufacture of steel bars calibrated free of defects, as well as industrial installation which allows to carry out the aforementioned procedure.
En la actualidad se conocen procedimientos para la fabricación de barras de acero calibrado que permiten conseguir barras calibradas destinadas a la fabricación de piezas mecánicas que cumplen con unas determinadas características de dimensiones de diámetro y de tolerancias externas y que son sometidas durante su fabricación a comprobación de grietas para evitar en lo posible barras con defectos.Currently, procedures are known for the manufacture of calibrated steel bars that allow to achieve calibrated bars for the manufacture of mechanical parts that meet certain characteristics of dimensions of diameter and external tolerances and which are subjected during crack-proof manufacturing to avoid as much as possible defective bars.
El aumento de las exigencias en las barras calibradas, obligando de manera rigurosa a la eliminación de defectos, especialmente grietas superficiales, ha representado la necesidad, en este sector industrial, de conseguir procedimientos e instalaciones para la fabricación de barras exentas de defectos, simultaneado con unas características satisfactorias de industrialización del procedimiento.The increased demands on the bars calibrated, forcing rigorously the elimination of defects, especially superficial cracks, has represented the need, in this industrial sector, to achieve procedures and facilities for manufacturing defect-free bars, combined with satisfactory characteristics of industrialization of the procedure.
En la actualidad, para transformar el acero laminado en caliente, que es la materia prima utilizada para la fabricación de barras de acero calibrado, se conocen principalmente dos procedimientos, a saber: el estirado en frío y el torneado o descortezado de las barras.At present, to transform steel hot rolled, which is the raw material used for the manufacture of calibrated steel bars, they are mainly known two procedures, namely: cold drawing and turning or barking of the bars.
En el primer caso, se procede a hacer pasar el acero laminado en caliente en rollos, es decir, el llamado alambrón, previamente limpio de la calamina propia del laminado en caliente, a través de una hilera que tiene un cono de reducción y una parte cilíndrica de calibrado, dejando el alambre con mayor redondez y una cierta tolerancia en diámetro del orden de 0,1 mm y una superficie más lisa.In the first case, we proceed to pass the hot rolled steel in rolls, that is, the so-called wire rod, previously clean from the laminate's own calamine in hot, through a row that has a reduction cone and a cylindrical part of calibration, leaving the wire with greater roundness and a certain tolerance in diameter of the order of 0.1 mm and a smoother surface.
Para llevar a cabo el método actualmente conocido de estirado en frío, se utilizan instalaciones que son las llamadas máquinas combinadas de estirar, que habitualmente comprenden las siguientes partes:To carry out the method currently known as cold drawn, facilities are used which are the called combined stretching machines, which usually They comprise the following parts:
- Una devanadora.- A winder.
- Un enderezador previo.- A previous straightener.
- Una máquina de limpiar la calamina, mediante chorros de granalla o cepillos.- A machine to clean the calamine, by shot jets or brushes.
- Un grupo de estirado mediante carros, donde está situada la hilera y se produce la reducción de la sección.- A group of stretched by cars, where the row is located and section reduction occurs.
- Dos grupos de rodillos de enderezar, horizontal y vertical, entre los cuales se acostumbra a situar el equipo de detección de grietas.- Two groups of straightening rollers, horizontal and vertical, among which it is customary to place the crack detection equipment.
- Un sistema de corte sincronizado.- A synchronized cutting system.
- Un sistema de enderezado por rodillos o toberas, que incluye un sistema de alimentación, descarga y clasificación.- A system of straightening by rollers or nozzles, which includes a feeding, discharge and classification.
Los sistemas de detección de grietas por corrientes inducidas que se utilizan en estas máquinas combinadas, permiten detectar defectos con profundidades mínimas aproximadamente de 0,15 mm, por lo que las barras transformadas por este procedimiento pueden tener defectos de dicha profundidad.The crack detection systems by Induced currents that are used in these combined machines, allow to detect defects with minimum depths approximately 0.15 mm, so the bars transformed by this procedure may have defects of such depth.
El proceso de torneado de las barras consiste en hacer pasar el alambrón a través de cabezales de cuchillas múltiples estáticas o rotativas que por arranque de viruta reducen el diámetro del alambrón dejando éste con mayor redondez, menor tolerancia y eliminando con la viruta la mayor parte de los defectos superficiales típicos del alambrón laminado en caliente.The process of turning the bars consists of Pass the wire rod through blade heads multiple static or rotary that by chip removal reduce the diameter of the wire rod leaving it with greater roundness, smaller tolerance and eliminating most of the defects with the chip Typical surfaces of hot rolled wire rod.
Para la realización de los métodos de fabricación por torneado, se disponen instalaciones que comprenden habitualmente los siguientes elementos:For the realization of the methods of turning manufacturing, facilities comprising usually the following elements:
- Devanadora- Winder
- Enderezador previo- Previous straightener
- Laminador previo (opcional) o enderezador rotativo- Previous laminator (optional) or straightener rotary
- Sistema de corte- Cutting system
- Sistema enderezado (opcional)- Straightened system (optional)
En las líneas de torneado de barras, dada la rugosidad del alambrón y/o la falta de redondez del mismo, una vez efectuada la operación de laminado, no llevan equipos de detección previos al torneado, pudiéndose utilizar estos al final del proceso con una profundidad de detección máxima aproximadamente de 0,15 mm, si incluye un sistema de enderezado pulido.On the bar turning lines, given the roughness of the wire rod and / or its lack of roundness, once Laminate operation performed, do not carry detection equipment prior to turning, being able to use these at the end of the process with a maximum detection depth of approximately 0.15 mm, if it includes a polished straightening system.
La Patente US 4 545 227 describe un aparato para el estirado en continuo y en seco de alambres en el que las grietas superficiales del alambre son eliminadas después de cada detección individual o alternativamente, son marcadas en el caso de que no sea posible su eliminación. No obstante, no hay realimentación a efectos de cambiar eventualmente el diámetro de la varilla entrante.US Patent 4 545 227 describes an apparatus for the continuous and dry stretching of wires in which the cracks Superficial wire are removed after each detection individually or alternatively, they are marked in the event that no its elimination is possible. However, there is no feedback to effects of eventually changing the rod diameter incoming.
La Patente US 4 037 446 da a conocer un método para la fabricación de varilla calibrada de acero a partir de varilla de acero laminada, que proporciona una primera etapa de reducción del diámetro de la varilla de acero mediante calibrado, enderezando la varilla e impartiendo al alambre una fuerza de curvado radial que se desplaza en un círculo por encima del alambre.US 4 037 446 discloses a method for the manufacture of calibrated steel rod from rolled steel rod, which provides a first stage of reduction of the diameter of the steel rod by means of calibration, straightening the rod and imparting to the wire a force of radial curving that moves in a circle above the wire.
El resumen de Patente japonesa 57 171 515 da a conocer un método para la eliminación de grietas superficiales combinando un aparato detector automático de grietas con un dispositivo automático de corte, que efectúa el corte de la superficie de la varilla solamente en la posición de la grieta antes del arrollado final del alambre.The Japanese Patent Summary 57 171 515 gives a know a method for removing surface cracks combining an automatic crack detection device with a automatic cutting device, which performs the cutting of the rod surface only in the crack position before of the final winding of the wire.
El resumen de Patente de Japón 59 142 054 da a conocer un método y dispositivo para eliminar defectos superficiales sobre varillas de alambre combinando un detector de grietas con un dispositivo de pulido para eliminar las grietas superficiales del alambre.Japan Patent Summary 59 142 054 gives a know a method and device to eliminate surface defects on wire rods combining a crack detector with a polishing device to remove surface cracks from the wire.
La Patente US 5 582 051 da a conocer un método automático para el corte de las grietas y un aparato para un material en forma de alambre para impedir el fallo en la detección de las grietas rectificando la torsión del metal en forma de alambre estirado desde un soporte de suministro de alambre de forma tubular, aplicando un proceso automático de corte de las grietas y eliminando a mano las grietas no cortadas.US 5 582 051 discloses a method automatic for cutting cracks and an apparatus for a wire-shaped material to prevent detection failure of the cracks rectifying the torsion of the metal in the form of wire stretched from a shape wire supply bracket tubular, applying an automatic process of cutting the cracks and removing uncut cracks by hand.
El resumen de Patente de Japón 04 238 621 da a conocer un dispositivo y su método para la fabricación de varilla, en el que la varilla es enderezada y descalaminada antes de su estirado y de la detección de grietas, eliminando las grietas mediante un dispositivo de reparación de grietas de tipo automático antes de la esferoidización y revenido de la varilla en un horno de tratamiento.The Japanese Patent Summary 04 238 621 gives a know a device and its method for manufacturing rod, in which the rod is straightened and descaled before its Stretched and crack detection, eliminating cracks by an automatic type crack repair device before spheroidization and tempering of the rod in an oven treatment.
Para conseguir la fabricación de barras
calibradas sin defectos de forma debidamente industrializada, la
presente invención prevé un procedimiento en el que se procede
desde la bobina del alambrón laminado en caliente a una operación
de pre-enderezado y posterior decalaminado,
procediendo después a la combinación de una fase de calibrado por
estirado y un proceso de control intermedio de grietas para que
detecte la profundidad de defectos de la barra según una
profundidad tarada, cuyos defectos se eliminan a continuación en una
operación de pelado, con una profundidad de arranque de virutas
superior al tarado del equipo de detección. Por lo tanto, se
procede al tarado del equipo de detección a una profundidad
correspondiente a los defectos experimentalmente detectados en las
barras, y se procederá al pelado de las barras con la eliminación de
una parte de material que corresponderá a la profundidad de
detección más un excedente determinado, de manera que se conseguirá
una mayor seguridad en la limpieza total de la barra, detectando
dicha zona de detección eventualmente zonas en las que los defectos
son superiores al tarado del equipo de detección, dando lugar a
barras que serán separadas automáticamente al final del proceso de
acuerdo con los métodos universalmente conocidos de referenciado de
los defectos de las barras de tipo continuo, para localizar al final
las barras que presentan defectos y permitir su eliminación. Sin
embargo, todos los defectos comprendidos dentro del valor de tarado
del aparato de detección, quedarán eliminados automáticamente por
la fase de torneado de las barras que eliminará una cantidad de
material correspondiente al tarado más un pequeño margen de
seguridad.In order to achieve the manufacture of defect-free calibrated bars in a duly industrialized manner, the present invention provides a procedure in which the hot rolled wire rod coil is pre-straightened and then re-laminated, then proceeding to the combination of a stretch calibration phase and an intermediate crack control process to detect the depth of bar defects according to a tared depth, whose defects are then eliminated in a stripping operation, with a chip removal depth greater than detection equipment setting. Therefore, the detection equipment is set at a depth corresponding to the experimentally detected defects in the bars, and the bars are stripped with the removal of a part of material that will correspond to the detection depth plus a determined surplus, so that greater security will be achieved in the total cleaning of the bar, detecting said detection zone, eventually areas where defects are greater than the detection equipment setting, resulting in bars that will be automatically separated at the end of the process according to the universally known methods of referencing the defects of the continuous type bars, to finally locate the bars that exhibit defects and allow their elimination. However, all defects within the setting value of the detection apparatus will be automatically eliminated by the turning phase of the bars that will eliminate a quantity of material corresponding to the tare plus a small margin of
security.
El procedimiento permitirá, por lo tanto, garantizar la ausencia de defectos superficiales detectables por los equipos actuales de control.The procedure will therefore allow guarantee the absence of surface defects detectable by Current control equipment.
El procedimiento objeto de la presente invención comportará la posibilidad de realimentación de resultados a la fase de calibración en frío de la instalación, puesto que en el caso de que el número de barras desechadas en la etapa final como resultado de la clasificación intermedia es muy elevado, se aumentará la profundidad de pelado, cambiando simultáneamente la hilera de calibrado a un diámetro superior, para permitir que el material tenga el excedente suficiente para la eliminación de las grietas y permitir conseguir el diámetro nominal de la barra calibrada. Evidentemente, en el caso en que no se produzcan rechazos en absoluto, ello significará que el calibrado del aparato se debe hacer a un valor más reducido, evitando pérdidas excesivas de material por el arranque de viruta.The process object of the present invention it will involve the possibility of feedback of results to the phase cold calibration of the installation, since in the case of that the number of bars discarded in the final stage as a result of the intermediate classification is very high, the peeling depth, simultaneously changing the row of calibrated to a larger diameter, to allow the material have enough surplus for the elimination of cracks and allow to achieve the nominal diameter of the calibrated bar. Obviously, in the case where there are no rejections in absolute, this will mean that the calibration of the device is due make at a lower value, avoiding excessive losses of material by chip removal.
Por lo tanto, mediante la aplicación del presente proceso e instalación correspondiente, se consigue la ausencia de defectos superficiales y reducir al mínimo las pérdidas por viruta o material rechazado por la profundidad de defectos detectados.Therefore, by applying the present process and corresponding installation, the absence of surface defects and minimize losses by chip or material rejected by the depth of defects detected.
Para su mejor comprensión se adjuntan, a título de ejemplo explicativo pero no limitativo, unos dibujos representativos de la presente invención.For your better understanding they are attached, by title Explanatory example but not limiting, some drawings representative of the present invention.
La figura 1 muestra un esquema del conjunto de elementos interesados en la presente invención.Figure 1 shows an outline of the set of Elements interested in the present invention.
La figura 2 muestra esquemáticamente la interrelación de diámetros de barra desde el alambrón de partida hasta la barra calibrada final con los excedentes correspondientes.Figure 2 schematically shows the interrelationship of bar diameters from the starting wire rod up to the final calibrated bar with the surpluses corresponding.
Tal como se aprecia en la figura 1, el procedimiento se inicia en la bobina (1) de alambrón laminado en caliente desde la cual se extrae el alambrón pasando a una fase de pre-enderezado (2), y posteriormente a la fase (3) de eliminación de residuos superficiales o calamina, mediante sistemas de granallado o de cepillos, con lo que se consigue el alambrón (4) enderezado y decalaminado que pasa a continuación a una fase de calibrado por estirado que comprende una hilera y un grupo de tracción, que se han representado con el numeral (5). A continuación, el alambrón calibrado (6) pasará al sistema de control (7) que estará tarado para la detección de grietas a una determinada profundidad, referenciando los lugares de la barra continua en la que se localizan zonas con defectos superiores al tarado de la máquina. A continuación, el alambrón calibrado pasa al sistema de mecanización (8) en el que se procederá de forma mecánica a eliminar una parte superficial de la barra algo mayor que el tarado del sistema de control, con lo que se habrán eliminado los defectos superficiales de modo sistemático. El alambrón pasará a continuación a la fase de corte (9), después de lo cual será enviado al conjunto de enderezado (10) pasando finalmente por la zona de selección de barras (11) donde las barras que cumplen las condiciones previstas (12) serán consideradas como barras comercializables y las barras defectuosas (12') en las que previamente se ha detectado profundidad de defecto superior al tarado de la máquina serán eliminadas.As seen in Figure 1, the procedure starts on the coil (1) of rolled wire rod in hot from which the wire rod is removed to a phase of pre-straightened (2), and then to phase (3) of elimination of superficial residues or calamine, by blasting or brushing systems, which achieves the wire rod (4) straightened and decaminated which then passes to a stretch calibration phase comprising a row and a group of traction, which have been represented with the numeral (5). TO then the calibrated wire rod (6) will pass to the control system (7) that will be set for the detection of cracks at a certain depth, referencing the places of the bar Continues where areas with defects greater than machine setting. Then, the calibrated wire rod goes to the mechanization system (8) in which it will proceed in a way mechanics to remove a slightly larger surface part of the bar that the control system setting, which will have been eliminated surface defects systematically. The wire rod will pass then to the cutting phase (9), after which it will be sent to the straightening assembly (10) finally passing through the bar selection area (11) where the bars that meet the planned conditions (12) will be considered as bars marketable and defective bars (12 ') in which previously detected defect depth greater than Machine setting will be removed.
En la figura 2 se ha representado esquemáticamente el procedimiento en el que se observa el diámetro (\phib) del alambrón después del estirado en frío, en el que existen múltiples defectos por grietas superficiales, tales como (d1), (d2), (d3) ..., que quedan dentro del valor (A) de tarado de la máquina. Es posible que algún defecto tal como (d4) sea superior al valor de tarado, dando lugar a una anotación de referenciado en la zona de detección que provocará el rechazo automático de la barra al final de la línea. El tarado de la máquina de detección de grietas se realizará con el valor (A) que se ha señalado en el gráfico, y el torneado se realizará eliminando el excedente (B) que comprende el tarado (A) más un pequeño excedente de seguridad (\varepsilon) que se ha señalado en el gráfico, dando lugar en conjunto al diámetro nominal (\phi_{n}) de la barra que se desee obtener.In figure 2 it has been represented schematically the procedure in which the diameter is observed (\ phib) of the wire rod after cold drawing, in which there are multiple defects due to surface cracks, such as (d1), (d2), (d3) ..., which remain within the value (A) of the setting of machine. It is possible that some defect such as (d4) is higher to the setting value, giving rise to a reference annotation in the detection zone that will cause automatic rejection of the bar at the end of the line. The setting of the detection machine cracks will be made with the value (A) indicated in the graph, and turning will be done by eliminating the surplus (B) that includes the setting (A) plus a small safety surplus (\ varepsilon) that has been indicated in the graph, giving rise to set to the nominal diameter (\ phi_ {n}) of the bar to be want to get.
La realimentación de información se podrá realizar, en caso de que el número de barras eliminadas por grietas sea excesivo, laminando la barra a un diámetro (\phi_{b}) algo mayor para que permita aumentar el excedente torneado (B), eliminando los defectos y produciendo al final del proceso barras limpias de defectos. En caso contrario, es decir, en que se pueda disminuir el diámetro en bruto (\phi_{b}), se procedería de modo inverso en la fase de laminación, disminuyendo el excedente de material con respecto al diámetro nominal (\phiB).Information feedback may be perform, in case the number of bars removed by cracks be excessive, rolling the bar to a diameter (\ phi_ {b}) something greater so that it allows to increase the turning surplus (B), eliminating defects and producing bars at the end of the process clean of defects. Otherwise, that is, where you can decrease the raw diameter (\ phi_ {b}), it would proceed so inverse in the lamination phase, reducing the excess of material with respect to the nominal diameter (phB).
En conjunto, mediante la aplicación del procedimiento de instalación objeto de la invención se conseguirá asegurar por completo la ausencia de defectos superficiales de forma debidamente industrializada, consiguiendo la mínima pérdida por virutas o materiales rechazados en la línea.Together, by applying the installation procedure object of the invention will be achieved completely ensure the absence of superficial defects of form duly industrialized, getting the minimum loss for shavings or materials rejected on the line.
Claims (3)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES200400139A ES2222839B1 (en) | 2004-01-23 | 2004-01-23 | PROCEDURE FOR THE MANUFACTURE OF CALIBRATED STEEL BARS FREE OF DEFECTS AND INSTALLATION FOR MANUFACTURING. |
| ES200400139 | 2004-01-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2335109T3 true ES2335109T3 (en) | 2010-03-22 |
Family
ID=34354862
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES200400139A Expired - Fee Related ES2222839B1 (en) | 2004-01-23 | 2004-01-23 | PROCEDURE FOR THE MANUFACTURE OF CALIBRATED STEEL BARS FREE OF DEFECTS AND INSTALLATION FOR MANUFACTURING. |
| ES05701668T Active ES2335109T3 (en) | 2004-01-23 | 2005-01-13 | PROCEDURE FOR THE MANUFACTURE OF CALIBRATED STEEL BARS FREE OF DEFECTS. |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES200400139A Expired - Fee Related ES2222839B1 (en) | 2004-01-23 | 2004-01-23 | PROCEDURE FOR THE MANUFACTURE OF CALIBRATED STEEL BARS FREE OF DEFECTS AND INSTALLATION FOR MANUFACTURING. |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US20060156779A1 (en) |
| EP (1) | EP1707284B1 (en) |
| JP (1) | JP2007518574A (en) |
| AT (1) | ATE450326T1 (en) |
| BR (1) | BRPI0506145A (en) |
| CA (1) | CA2536001A1 (en) |
| DE (1) | DE602005018018D1 (en) |
| ES (2) | ES2222839B1 (en) |
| WO (1) | WO2005070578A1 (en) |
| ZA (1) | ZA200601901B (en) |
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| DE10339191A1 (en) * | 2003-08-22 | 2005-03-17 | Sms Demag Ag | Extending use of coil box between pre-train and finishing train for rolled material in hot rolling mill comprises applying pressing force to coil in mandrel-less coil box, and placing in roller table sink |
| IT1401449B1 (en) * | 2010-06-10 | 2013-07-26 | Trafilerie Brambilla S P A | METHOD AND PLANT FOR THE PRODUCTION OF STAINLESS STEEL BARS AND / OR OF COLD DRAFTED STAINLESS STEEL ALLOYS. |
| DE102012011509B4 (en) | 2012-06-09 | 2022-12-15 | Volkswagen Aktiengesellschaft | Method of manufacturing a stepped bar and stepped bar |
| JP7081687B2 (en) * | 2018-11-29 | 2022-06-07 | Ｊｆｅスチール株式会社 | Marking detection device and detection method for round steel materials and manufacturing method for steel materials |
| DE102019206878A1 (en) * | 2019-05-13 | 2020-11-19 | Sms Group Gmbh | Drawing plant for the production of metal profiles and methods for the automatic operation of such a drawing plant |
| CN112809030B (en) * | 2020-12-30 | 2022-02-15 | 重庆工业职业技术学院 | Plastic waste collecting device applied to machining equipment and equipment thereof |
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| FR2317023A1 (en) * | 1975-07-19 | 1977-02-04 | Kieserling & Albrecht | PROCESS FOR THE MANUFACTURING OF WHITE STEEL BLANKETS, FROM LAMINATED WIRE OR TRUNKS OF THIS WIRE |
| JPS6028611B2 (en) * | 1981-04-11 | 1985-07-05 | 株式会社神戸製鋼所 | How to remove surface scratches from wire rods on a drawing line |
| JPS58221611A (en) * | 1982-06-18 | 1983-12-23 | Sumitomo Metal Ind Ltd | Dry type continuous wire drawing device for wire rod |
| FR2540246A1 (en) * | 1983-01-28 | 1984-08-03 | Solmer | DEVICE FOR DETECTING CRIQUES ON STEEL BRAMS OBTAINED FROM A CONTINUOUS CASTING |
| JPS59142054A (en) * | 1983-01-28 | 1984-08-15 | Sumitomo Metal Ind Ltd | Removing method and device of surface flaw on wire rod |
| JPH04238621A (en) * | 1991-01-08 | 1992-08-26 | Sumitomo Metal Ind Ltd | Device and method for manufacturing wire rod |
| US5582051A (en) * | 1994-03-03 | 1996-12-10 | Nippon Koshuha Steel Co., Ltd. | Automatic flaw-cutting method and apparatus for wire-shaped metal |
| US6153131A (en) * | 1996-05-13 | 2000-11-28 | Huang; Yean-Jenq | Method for designing an extrusion process and die |
-
2004
- 2004-01-23 ES ES200400139A patent/ES2222839B1/en not_active Expired - Fee Related
-
2005
- 2005-01-13 WO PCT/ES2005/000013 patent/WO2005070578A1/en active Application Filing
- 2005-01-13 EP EP05701668A patent/EP1707284B1/en active Active
- 2005-01-13 ES ES05701668T patent/ES2335109T3/en active Active
- 2005-01-13 JP JP2006550198A patent/JP2007518574A/en not_active Withdrawn
- 2005-01-13 AT AT05701668T patent/ATE450326T1/en not_active IP Right Cessation
- 2005-01-13 ZA ZA200601901A patent/ZA200601901B/en unknown
- 2005-01-13 DE DE602005018018T patent/DE602005018018D1/en active Active
- 2005-01-13 CA CA002536001A patent/CA2536001A1/en not_active Abandoned
- 2005-01-13 BR BRPI0506145-8A patent/BRPI0506145A/en not_active IP Right Cessation
-
2006
- 2006-03-10 US US11/373,043 patent/US20060156779A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| ES2222839A1 (en) | 2005-02-01 |
| ZA200601901B (en) | 2007-07-25 |
| EP1707284A1 (en) | 2006-10-04 |
| ATE450326T1 (en) | 2009-12-15 |
| EP1707284B1 (en) | 2009-12-02 |
| WO2005070578A1 (en) | 2005-08-04 |
| US20060156779A1 (en) | 2006-07-20 |
| ES2222839B1 (en) | 2005-10-01 |
| JP2007518574A (en) | 2007-07-12 |
| CA2536001A1 (en) | 2005-08-04 |
| DE602005018018D1 (en) | 2010-01-14 |
| BRPI0506145A (en) | 2006-10-24 |
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