WO2006066805A1 - Method and device for descaling surfaces - Google Patents
Method and device for descaling surfaces Download PDFInfo
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- WO2006066805A1 WO2006066805A1 PCT/EP2005/013545 EP2005013545W WO2006066805A1 WO 2006066805 A1 WO2006066805 A1 WO 2006066805A1 EP 2005013545 W EP2005013545 W EP 2005013545W WO 2006066805 A1 WO2006066805 A1 WO 2006066805A1
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- Prior art keywords
- rolling stock
- descaling
- entzunderungsbalken
- cleaned
- nozzles
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/04—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing
- B21B45/08—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing hydraulically
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0269—Cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/04—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing
- B21B45/06—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing of strip material
Definitions
- the invention relates to a method and a device for removing particles and / or adhesions, in particular non - metallic and / or metal oxide particles, from the surface of a rolling stock such as pre - rolled profiles, sheets, strips or the like and from continuously cast billets, billets, slabs, thin slabs or the like, in which liquid jets exert under pressure from nozzles disposed on one or more descaling bars.
- the rolling stock passes through aggregates or devices whose task is to liberate them from particles / adhesions of any type and / or adhesions, in particular non-metallic and / or metal oxide particles.
- a method for descaling a workpiece, in particular a rolling stock, has become known from EP 0 879 101 B1. Thereafter, the workpiece is moved past a rotor descaling device and in this case at least one liquid jet, which rotates about an axis of rotation of the workpiece to be descaled, is sprayed onto the surface to be descaled. At this time, the liquid jet becomes intermittent, i. temporarily suspended. The suspension of the formation of a liquid jet takes place two or more times in succession, but only for a short time, i. maximum over a liquid jet - rotation of 10 °, preferably 5 °.
- DE 198 05 377 A1 discloses a spray bar of a hydraulic descaling system with a group of spray nozzles arranged in a row, wherein the spray nozzles can be switched individually by actuating a common adjusting element.
- a scale scrubber for the descaling of rolling stock, in particular of profiles is described in DE 198 02 425 A1.
- the scale scrubber consists of a distributor element with a plurality of nozzles, the scale scrubber should be quickly and easily adapted to different geometries and sizes of profiles when changing the rolling program.
- the distributor element is rotatably mounted and locked in working rotational positions, so that the nozzles form a plurality of radially spaced apart from the distributor element nozzle assemblies extending along the axis of rotation of the distributor element, and that each one of the nozzle assemblies adapted to the cross-sectional contour of a continuous profile is and is rotatably adjustable.
- a device for descaling warm, past the device rolling in which by irradiation by means of high pressure fluid, in particular high pressure water, with at least one workpiece width covering nozzle row with a plurality of nozzle heads, each nozzle head is rotationally driven by a motor to the workpiece surface substantially vertical axis of rotation. Furthermore, the nozzle row has two off-center nozzles arranged with respect to the axis of rotation. In the device, the nozzles of each nozzle head are arranged with different angles to the axis of rotation so that the spray pattern of each nozzle in operation, based on the axis of rotation, covers a different radial area.
- EP 0 586 823 B1 discloses a descaling device which uses water and which belongs to a casting and rolling train and is assigned to at least one surface of the product to be descaled, the device having a plurality of nozzles which discharge water under pressure.
- the nozzles are arranged on arms that are movable with respect to the surface of the product to be descaled.
- the movable arms have at least one rotatable arm which corresponds to the surface of the associated with scaling product and carries substantially at its free end at least one nozzle.
- EP 1 077 095 A2 describes a device for the hydromechanical descaling of continuously cast slabs and / or hot-rolled metal strip, in particular of steel.
- the device comprises in each case a band side associated, in the belt running direction behind each other and laterally offset from one another arranged water spray nozzles for spraying high pressure - water jets on the two-sided tape surfaces.
- the rows of nozzles associated with the upper side of the band can be pivoted together with collecting channels by one axle each and are height-adjustable in accordance with the signal of a measuring device relative to the upper side of the band.
- the water collecting channels are counter to the tape running direction independent of the water spray nozzles pivotable about a pivot point and adjustable in height relative to the metal strip and are designed automatically evasive.
- the nozzle rows receiving spray bars of the tape top are pivotable with a lever arm to the center of gravity of the water collection channels and are therefore vertically adjustable within limits and arranged automatically evasive.
- the liquid jet is directed at a fixed angle to the surface of the rolling stock to be descaled, the nozzles being arranged rigidly.
- An improvement is achieved in that the nozzles change their angular position within a narrow pivoting range.
- the invention has for its object to simplify the known, mechanically complex, constructions and to avoid the above-mentioned process-related disadvantages.
- the descaling bar rotates or rotates about its or its longitudinal axis during the cleaning process and the axis of rotation is substantially parallel to the surface of the rolling stock to be cleaned, wherein the relative angle between descaling and rolling stock is variable.
- the invention also relates to a device for carrying out the method according to the invention.
- the decisive advantage of the method according to the invention is that the angle at which the liquid jet strikes the surface of the rolling stock changes continuously. During the passage of the rolling stock, an angle range of, for example, 120 ° occurs in the area of descaling. Depending on the rotation speed of the descaling bar, the same surface area of the rolling stock can be descaled several times. That the nozzles sweep the surface several times.
- an intermittent discharge is preferably provided. Due to the rotation of the Entzu mattersbalkens about its longitudinal axis, which is ideally arranged parallel to the surface of the rolling stock, the Surface under changing angles with the pressurized liquid applied.
- the cooling is additionally influenced. It makes sense, for example, that when descaling a slab or thin slab, the head and foot are moved at a different distance from the descaling bar than the body.
- the device for removing the particles and / or adhesions from the surface of the rolling stock can take place before and / or after a heating furnace.
- Fig. 1 in a three-dimensional schematic representation of a rolling stock with a descaling bar arranged above the rolling stock according to the invention
- a rolling stock 1 is shown above the rolling stock 1 .
- a descaling bar 2 is arranged such that on one side the supply of the Enzu mattersbalkens 2 takes place with a liquid via a flexible conduit 3 and on the other side of a motor 6 is arranged.
- the motor 6 rotates the descaling bar 2 in the directions indicated by an arrow 5.
- the liquid jet emerging from the nozzles 4 strikes the rolling stock 1 in a clockwise direction during a rotation of the descaling bar 2 in such a way that the liquid jet counteracts the rolling direction 7. If the descaling bar 2 is rotated in the counterclockwise direction, the liquid jet or the liquid jets in the rolling direction 7 emerge from the nozzles 4.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
Description
Verfahren und Vorrichtung zum Entzundern von OberflächenMethod and device for descaling surfaces
Die Erfindung betrifft ein Verfahren und eine Vorrichtung zum Entfernen von Partikeln und / oder Anhaftungen, insbesondere nichtmetallischen und / oder Metalloxid - Partikeln, von der Oberfläche eines Walzgutes wie vorgewalzte Profile, Bleche, Bänder oder dergleichen und von stranggegossenen Knüppeln, Vorblöcken, Brammen, Dünnbrammen oder dergleichen, bei dem Flüssigkeitsstrahlen unter Druck aus Düsen austreten, welche an einem oder mehreren Entzunderungsbalken angeordnet sind.The invention relates to a method and a device for removing particles and / or adhesions, in particular non - metallic and / or metal oxide particles, from the surface of a rolling stock such as pre - rolled profiles, sheets, strips or the like and from continuously cast billets, billets, slabs, thin slabs or the like, in which liquid jets exert under pressure from nozzles disposed on one or more descaling bars.
Das Walzgut durchläuft als Teil der Prozesslinie Aggregate bzw. Vorrichtungen, deren Aufgabe es ist, diese von Partikeln / Anhaftungen jeglicher Art und / oder Anhaftungen, insbesondere nichtmetallische und / oder Metalloxid - Partikel, zu befreien.As part of the process line, the rolling stock passes through aggregates or devices whose task is to liberate them from particles / adhesions of any type and / or adhesions, in particular non-metallic and / or metal oxide particles.
Ein Verfahren zum Entzundern eines Werkstückes, insbesondere eines Walzgutes, ist durch die EP 0 879 101 B1 bekannt geworden. Danach wird das Werkstück an einer Rotor - Entzunderungseinrichtung vorbeibewegt und bei dieser mindestens ein Flüssigkeitsstrahl, der um einer die zu entzundernde O- berfläche des Werkstückes schneidende Rotationsachse rotiert, auf die zu entzundernde Oberfläche gespritzt wird. Dabei wird der Flüssigkeitsstrahl intermittierend, d.h. zeitweilig aussetzend, gebildet. Das Aussetzen der Bildung eines Flüssigkeitsstrahles erfolgt zwei - oder mehrmals hintereinander, jedoch nur kurzzeitig, d.h. maximal über eine Flüssigkeitsstrahl - Rotation von 10°, vorzugsweise von 5°.A method for descaling a workpiece, in particular a rolling stock, has become known from EP 0 879 101 B1. Thereafter, the workpiece is moved past a rotor descaling device and in this case at least one liquid jet, which rotates about an axis of rotation of the workpiece to be descaled, is sprayed onto the surface to be descaled. At this time, the liquid jet becomes intermittent, i. temporarily suspended. The suspension of the formation of a liquid jet takes place two or more times in succession, but only for a short time, i. maximum over a liquid jet - rotation of 10 °, preferably 5 °.
Aus der DE 198 05 377 A1 ist ein Spritzbalken einer hydraulischen Entzunde- rungsanlage mit einer in einer Reihe angeordneten Gruppe von Spritzdüsen bekannt, wobei die Spritzdüsen durch Betätigen eines gemeinsamen Verstellorgans einzeln schaltbar sind. Ein Zunderwäscher für das Entzundern von Walzgut, insbesondere von Profilen wird in der DE 198 02 425 A1 beschrieben. Der Zunderwäscher besteht aus einem Verteilerelement mit einer Vielzahl von Düsen, wobei der Zunderwäscher schnell und einfach an verschiedene Geometrien und Größen von Profilen bei Änderung des Walzprogramms anpassbar sein soll. Hierzu wird das Verteilerelement drehbar gelagert und in Arbeitsdrehstellungen arretiert, so dass die Düsen mehrere, voneinander beabstandet radial zum Verteilerelement angeordnete Düsenverbunde bilden, die sich entlang der Drehachse des Verteilerelementes erstrecken, und dass jeweils einer der Düsenverbunde an die Quer- schnittskontur eines durchlaufenden Profils angepasst ist und drehbar einstellbar ist.DE 198 05 377 A1 discloses a spray bar of a hydraulic descaling system with a group of spray nozzles arranged in a row, wherein the spray nozzles can be switched individually by actuating a common adjusting element. A scale scrubber for the descaling of rolling stock, in particular of profiles is described in DE 198 02 425 A1. The scale scrubber consists of a distributor element with a plurality of nozzles, the scale scrubber should be quickly and easily adapted to different geometries and sizes of profiles when changing the rolling program. For this purpose, the distributor element is rotatably mounted and locked in working rotational positions, so that the nozzles form a plurality of radially spaced apart from the distributor element nozzle assemblies extending along the axis of rotation of the distributor element, and that each one of the nozzle assemblies adapted to the cross-sectional contour of a continuous profile is and is rotatably adjustable.
Aus der DE 43 28 303 C2 ist eine Einrichtung zum Entzundern von warmen, an der Einrichtung vorbeibewegtem Walzgut bekannt, bei der durch Bestrahlen mittels unter hohem Druck stehenden Fluidss, insbesondere Hochdruckwasser, mit mindestens einer die Werkstückbreite überdeckenden Düsenreihe mit mehreren Düsenköpfen, wobei jeder Düsenkopf um eine zur Werkstückoberfläche im wesentlichen senkrechten Drehachse motorisch drehangetrieben ist. Weiterhin weist die Düsenreihe zwei außermittig bezüglich der Drehachse ange- ordnete Düsen auf. Bei der Einrichtung sind die Düsen jedes Düsenkopfes mit zur Drehachse unterschiedlichen Winkeln so angeordnet, dass das Spritzbild jeder Düse im Betrieb, bezogen auf die Drehachse, einen unterschiedlichen radialen Bereich überdeckt.From DE 43 28 303 C2 a device for descaling warm, past the device rolling is known in which by irradiation by means of high pressure fluid, in particular high pressure water, with at least one workpiece width covering nozzle row with a plurality of nozzle heads, each nozzle head is rotationally driven by a motor to the workpiece surface substantially vertical axis of rotation. Furthermore, the nozzle row has two off-center nozzles arranged with respect to the axis of rotation. In the device, the nozzles of each nozzle head are arranged with different angles to the axis of rotation so that the spray pattern of each nozzle in operation, based on the axis of rotation, covers a different radial area.
Bekannt ist aus der EP 0 586 823 B1 eine Wasser verwendende Entzunde- rungsvorrichtung, welche zu einer Gieß - und Walzstraße gehört und mindestens einer Fläche des zu entzundernden Produktes zugeordnet ist, wobei die Vorrichtung eine Mehrzahl von Düsen aufweist, die unter Druck Wasser ausstoßen. Die Düsen sind an Armen angeordnet, die in Bezug auf die Oberfläche des zu entzundernden Produktes bewegbar sind. Weiterhin weisen die bewegbaren Arme mindestens einen drehbaren Arm auf, der der Fläche des zu ent- zundernden Produktes zugeordnet ist und im wesentlichen an seinem freien Ende mindestens eine Düse trägt. Bei dieser Entzunderungsvorrichtung wird eine Zurückhalte -, Schutz - und Rückgewinnungsplatte berücksichtigt, die zwischen der Fläche des zu entzundernden Produktes und den Düsen angeordnet ist, wobei die Zurückhalte -, Schutz - und Rückgewinnungsplatte einen Teil des während der Drehung des drehbaren Armes von den Düsen durchlaufenen vollen Kreises überdeckt.EP 0 586 823 B1 discloses a descaling device which uses water and which belongs to a casting and rolling train and is assigned to at least one surface of the product to be descaled, the device having a plurality of nozzles which discharge water under pressure. The nozzles are arranged on arms that are movable with respect to the surface of the product to be descaled. Furthermore, the movable arms have at least one rotatable arm which corresponds to the surface of the associated with scaling product and carries substantially at its free end at least one nozzle. In this descaling device, account is taken of a retaining, protection and recovery plate disposed between the surface of the product to be descaled and the nozzles, the retention, protection and recovery plate forming part of the part passed through the nozzles during rotation of the rotatable arm full circle covered.
Die EP 1 077 095 A2 beschreibt eine Vorrichtung zum hydromechanischen Entzundern von stranggegossenen Brammen und / oder warmgewalztem Metall- band, insbesondere aus Stahl. Die Vorrichtung umfasst jeweils einer Bandseite zugeordnete, in Bandlaufrichtung hintereinander sowie seitlich zueinander versetzt angeordnete Wasserspritzdüsen zum Aufspritzen von Hochdruck - Wasserstrahlen auf die beidseitigen Bandoberflächen. Die der Bandoberseite zugeordneten Düsenreihen sind zusammen mit Auffangrinnen jeweils um eine Ach- se verschwenkbar und sind nach Maßgabe des Signals einer Messeinrichtung gegenüber der Bandoberseite höhenverstellbar. Die Wasserauffangrinnen sind entgegen der Bandlaufrichtung unabhängig von den Wasserspritzdüsen um einen Schwenkpunkt verschwenkbar und gegenüber dem Metallband höhenverstellbar und sind selbsttätig ausweichbar ausgebildet. Die die Düsenreihen aufnehmenden Spritzbalken der Bandoberseite sind mit einem Hebelarm um den Schwerpunkt der Wasserauffangrinnen verschwenkbar und sind damit in Grenzen höhenverstellbar sowie selbsttätig ausweichbar angeordnet.EP 1 077 095 A2 describes a device for the hydromechanical descaling of continuously cast slabs and / or hot-rolled metal strip, in particular of steel. The device comprises in each case a band side associated, in the belt running direction behind each other and laterally offset from one another arranged water spray nozzles for spraying high pressure - water jets on the two-sided tape surfaces. The rows of nozzles associated with the upper side of the band can be pivoted together with collecting channels by one axle each and are height-adjustable in accordance with the signal of a measuring device relative to the upper side of the band. The water collecting channels are counter to the tape running direction independent of the water spray nozzles pivotable about a pivot point and adjustable in height relative to the metal strip and are designed automatically evasive. The nozzle rows receiving spray bars of the tape top are pivotable with a lever arm to the center of gravity of the water collection channels and are therefore vertically adjustable within limits and arranged automatically evasive.
Bei den bekannten Vorrichtungen ist der Flüssigkeitsstrahl unter einem festen Winkel auf die Oberfläche des zu entzundernden Walzgutes gerichtet, wobei die Düsen starr angeordnet sind. Eine Verbesserung erfolgt dadurch, dass die Düsen innerhalb eines engen Schwenkbereiches ihre Winkelanstellung verändern. Der Erfindung liegt die Aufgabe zugrunde, die bekannten, mechanisch aufwendigen, Konstruktionen zu vereinfachen und die oben genannten verfahrensbedingten Nachteile zu vermeiden.In the known devices, the liquid jet is directed at a fixed angle to the surface of the rolling stock to be descaled, the nozzles being arranged rigidly. An improvement is achieved in that the nozzles change their angular position within a narrow pivoting range. The invention has for its object to simplify the known, mechanically complex, constructions and to avoid the above-mentioned process-related disadvantages.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass bei einem Verfah- ren gemäß dem Oberbegriff von Anspruch 1 der oder die Entzunderungsbalken während des Reinigungsvorganges um seine oder ihre Längsachse rotiert oder rotieren und die Rotationsachse im wesentlichen parallel zur Oberfläche des zu reinigenden Walzguts liegt, wobei der relative Winkel zwischen Entzunderungsbalken und Walzgut variabel ist.This object is achieved according to the invention in that, in a method according to the preamble of claim 1, the descaling bar rotates or rotates about its or its longitudinal axis during the cleaning process and the axis of rotation is substantially parallel to the surface of the rolling stock to be cleaned, wherein the relative angle between descaling and rolling stock is variable.
Weitere Ausgestaltungen des Verfahrens ergeben sich aus den diesbezüglichen Unteransprüchen.Further embodiments of the method will become apparent from the relevant subclaims.
Die Erfindung betrifft außerdem eine Vorrichtung zur Durchführung des erfin- dungsgemäßen Verfahrens.The invention also relates to a device for carrying out the method according to the invention.
Weitere Ausgestaltungen der Vorrichtung ergeben sich aus den diesbezüglichen Unteransprüchen.Further embodiments of the device will become apparent from the relevant subclaims.
Der entscheidende Vorteil der erfindungsgemäßen Verfahrens liegt darin, dass der Winkel, unter dem der Flüssigkeitsstrahl auf die Oberfläche des Walzgutes auftrifft, sich fortlaufend ändert. Bei Durchlauf des Walzgutes kommt es im Bereich der Entzunderung zu einem Winkelbereich von beispielsweise 120°. Abhängig von der Rotationsgeschwindigkeit des Entzunderungsbalkens kann der- selbe Oberflächenbereich des Walzgutes mehrfach entzundert werden. D.h. die Düsen überstreichen die Oberfläche mehrmals.The decisive advantage of the method according to the invention is that the angle at which the liquid jet strikes the surface of the rolling stock changes continuously. During the passage of the rolling stock, an angle range of, for example, 120 ° occurs in the area of descaling. Depending on the rotation speed of the descaling bar, the same surface area of the rolling stock can be descaled several times. That the nozzles sweep the surface several times.
Damit die Flüssigkeit bei einer Rotation des Entzunderungsbalkens nicht frei im Raum verteilt wird, ist vorzugsweise ein intermittierender Ausstoß vorgesehen. Durch die Rotation des Entzunderungsbalkens um seine Längsachse, welche idealerweise parallel zur Oberfläche des Walzgutes angeordnet ist, wird die Oberfläche unter sich ändernden Winkeln mit der unter Druck stehenden Flüssigkeit beaufschlagt.In order that the liquid is not distributed freely in space during rotation of the descaling bar, an intermittent discharge is preferably provided. Due to the rotation of the Entzunderungsbalkens about its longitudinal axis, which is ideally arranged parallel to the surface of the rolling stock, the Surface under changing angles with the pressurized liquid applied.
Durch eine Veränderung des Abstandes des Entzunderungsbalkens von dem Walzgut wird die Abkühlung zusätzlich beeinflusst. Es ist beispielsweise sinn- voll, dass bei der Entzunderung einer Bramme oder Dünnbramme der Kopf und der Fuß mit einem anderen Abstand des Entzunderungsbalkens als der Body gefahren wird.By changing the distance of the Entzunderungsbalkens of the rolling stock, the cooling is additionally influenced. It makes sense, for example, that when descaling a slab or thin slab, the head and foot are moved at a different distance from the descaling bar than the body.
Die Vorrichtung zum Entfernen der Partikel und / oder Anhaftungen von der Oberfläche des Walzgutes kann vor und / oder nach einem Wärmeofen erfolgen.The device for removing the particles and / or adhesions from the surface of the rolling stock can take place before and / or after a heating furnace.
Ein Ausführungsbeispiel der Erfindung wird anhand einer sehr schematischen Zeichnung näher beschrieben. Es zeigt:An embodiment of the invention will be described with reference to a very schematic drawing. It shows:
Fig. 1 in räumlicher schematischer Darstellung ein Walzgut mit einem oberhalb des Walzguts angeordneten Entzunderungsbalken gemäß der ErfindungFig. 1 in a three-dimensional schematic representation of a rolling stock with a descaling bar arranged above the rolling stock according to the invention
In der einzigen Figur ist ein Walzgut 1 dargestellt. Oberhalb des Walzgutes 1 ist ein Entzunderungsbalken 2 derart angeordnet, dass an einer Seite die Versorgung des Enzunderungsbalkens 2 mit einer Flüssigkeit über eine flexible Leitung 3 erfolgt und auf der anderen Seite ein Motor 6 angeordnet ist. Der Motor 6 dreht den Entzunderungsbalken 2 in die mit einem Pfeil 5 angedeuteten Rich- tungen. Der aus den Düsen 4 austretende Flüssigkeitsstrahl trifft bei einer Rotation des Entzunderungsbalkens 2 im Uhrzeigersinn derart auf das Walzgut 1 , dass der Flüssigkeitsstrahl der Walzrichtung 7 entgegenwirkt. Wird der Entzunderungsbalken 2 entgegen dem Uhrzeigersinn gedreht, so tritt der Flüssigkeitsstrahl bzw. die Flüssigkeitsstrahlen in Walzrichtung 7 aus den Düsen 4. BezugszeichenlisteIn the single figure, a rolling stock 1 is shown. Above the rolling stock 1 a descaling bar 2 is arranged such that on one side the supply of the Enzunderungsbalkens 2 takes place with a liquid via a flexible conduit 3 and on the other side of a motor 6 is arranged. The motor 6 rotates the descaling bar 2 in the directions indicated by an arrow 5. The liquid jet emerging from the nozzles 4 strikes the rolling stock 1 in a clockwise direction during a rotation of the descaling bar 2 in such a way that the liquid jet counteracts the rolling direction 7. If the descaling bar 2 is rotated in the counterclockwise direction, the liquid jet or the liquid jets in the rolling direction 7 emerge from the nozzles 4. LIST OF REFERENCE NUMBERS
1. Walzgut1. rolling stock
2. Entzunderungsbalken2. Descaling beam
3. Zuleitung3. Supply line
4. Düsen4. nozzles
5. Rotationsrichtung 6. Motor5. Rotation direction 6. Motor
7. Walzrichtung 7. rolling direction
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004060825.3 | 2004-12-17 | ||
| DE200410060825 DE102004060825A1 (en) | 2004-12-17 | 2004-12-17 | Method and device for descaling surfaces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2006066805A1 true WO2006066805A1 (en) | 2006-06-29 |
Family
ID=36101473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2005/013545 Ceased WO2006066805A1 (en) | 2004-12-17 | 2005-12-16 | Method and device for descaling surfaces |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE102004060825A1 (en) |
| WO (1) | WO2006066805A1 (en) |
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| DE102006043567A1 (en) * | 2006-09-16 | 2008-03-27 | Sms Demag Ag | Spray bar of a hydraulic Entzunderungsanlage and method for operating such a spray bar |
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| EP0879101A1 (en) * | 1996-02-02 | 1998-11-25 | Voest-Alpine Industrieanlagenbau Gmbh | Workpiece descaling process |
| DE19802425A1 (en) * | 1998-01-23 | 1999-07-29 | Schloemann Siemag Ag | Descaling device for rolling stock |
| EP1077095A2 (en) * | 1999-08-14 | 2001-02-21 | SMS Demag AG | Descaling device for a continuously cast metal strip |
| JP2002172417A (en) * | 1993-05-06 | 2002-06-18 | Kawasaki Steel Corp | Descaling device |
| JP2002172416A (en) * | 1993-05-06 | 2002-06-18 | Kawasaki Steel Corp | Descaling method |
-
2004
- 2004-12-17 DE DE200410060825 patent/DE102004060825A1/en not_active Withdrawn
-
2005
- 2005-12-16 WO PCT/EP2005/013545 patent/WO2006066805A1/en not_active Ceased
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|---|---|---|---|---|
| US5460023A (en) * | 1991-09-13 | 1995-10-24 | International Rolling Mill Consultants Inc. | Roll surface restoration system and method |
| JP2002172417A (en) * | 1993-05-06 | 2002-06-18 | Kawasaki Steel Corp | Descaling device |
| JP2002172416A (en) * | 1993-05-06 | 2002-06-18 | Kawasaki Steel Corp | Descaling method |
| JPH0985329A (en) * | 1995-09-26 | 1997-03-31 | Kawasaki Steel Corp | High pressure water descaling device |
| EP0879101A1 (en) * | 1996-02-02 | 1998-11-25 | Voest-Alpine Industrieanlagenbau Gmbh | Workpiece descaling process |
| DE19802425A1 (en) * | 1998-01-23 | 1999-07-29 | Schloemann Siemag Ag | Descaling device for rolling stock |
| EP1077095A2 (en) * | 1999-08-14 | 2001-02-21 | SMS Demag AG | Descaling device for a continuously cast metal strip |
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| Title |
|---|
| PATENT ABSTRACTS OF JAPAN vol. 1997, no. 07 31 July 1997 (1997-07-31) * |
| PATENT ABSTRACTS OF JAPAN vol. 2002, no. 10 10 October 2002 (2002-10-10) * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102584692A (en) * | 2011-01-14 | 2012-07-18 | 浙江天新药业有限公司 | Preparation method of puridoxine hydrochloride |
| CN102584692B (en) * | 2011-01-14 | 2013-10-09 | 浙江天新药业有限公司 | Preparation method of puridoxine hydrochloride |
| CN110142244A (en) * | 2019-04-26 | 2019-08-20 | 安徽新视野门窗幕墙工程有限公司 | A kind of door and window aluminium alloy section surface processing equipment |
| CN119158911A (en) * | 2024-11-21 | 2024-12-20 | 洛阳盈创极光精密制造有限公司 | A copper foil six-roll mill strip surface cleaning device |
| CN119158911B (en) * | 2024-11-21 | 2025-02-25 | 洛阳盈创极光精密制造有限公司 | A copper foil six-roller rolling mill strip surface cleaning device |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102004060825A1 (en) | 2006-06-29 |
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