EP0313516B1 - Device and method for cooling of rolls - Google Patents

Device and method for cooling of rolls Download PDF

Info

Publication number
EP0313516B1
EP0313516B1 EP88810680A EP88810680A EP0313516B1 EP 0313516 B1 EP0313516 B1 EP 0313516B1 EP 88810680 A EP88810680 A EP 88810680A EP 88810680 A EP88810680 A EP 88810680A EP 0313516 B1 EP0313516 B1 EP 0313516B1
Authority
EP
European Patent Office
Prior art keywords
roll
cooling medium
rolls
hood
roll surface
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP88810680A
Other languages
German (de)
French (fr)
Other versions
EP0313516A1 (en
Inventor
Bruno Frischknecht
Rudolf Roder
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LAUENER ENGINEERING AG
Original Assignee
Lauener Engineering AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lauener Engineering AG filed Critical Lauener Engineering AG
Priority to AT88810680T priority Critical patent/ATE74807T1/en
Publication of EP0313516A1 publication Critical patent/EP0313516A1/en
Application granted granted Critical
Publication of EP0313516B1 publication Critical patent/EP0313516B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
    • B21B27/06—Lubricating, cooling or heating rolls
    • B21B27/10—Lubricating, cooling or heating rolls externally
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
    • B21B27/06—Lubricating, cooling or heating rolls
    • B21B27/08—Lubricating, cooling or heating rolls internally
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B28/00—Maintaining rolls or rolling equipment in effective condition
    • B21B28/02—Maintaining rolls in effective condition, e.g. reconditioning
    • B21B28/04—Maintaining rolls in effective condition, e.g. reconditioning while in use, e.g. polishing or grinding while the rolls are in their stands
    • 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
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0637—Accessories therefor
    • B22D11/068—Accessories therefor for cooling the cast product during its passage through the mould surfaces
    • B22D11/0682—Accessories therefor for cooling the cast product during its passage through the mould surfaces by cooling the casting wheel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
    • B21B27/06—Lubricating, cooling or heating rolls
    • B21B27/08—Lubricating, cooling or heating rolls internally
    • B21B2027/083—Lubricating, cooling or heating rolls internally cooling internally
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
    • B21B27/02—Shape or construction of rolls
    • B21B27/03—Sleeved rolls

Definitions

  • the invention relates to a device and a method for cooling rolls according to the preamble of patent claims 1 and 7.
  • the casting mold is essentially formed by the casting gap between the rolls and by side end walls.
  • the action time of the rollers is relatively short, a large amount of heat has to be dissipated over a short distance, in particular the heat of solidification, friction and / or deformation.
  • the rolls are cooled using special devices or processes, namely by injection from the outside or by internal cooling.
  • the specialist in strip casting systems prefers the internal cooling of the rolls, in which cooling channels are generally arranged between a roll core and a roll jacket, through which a cooling medium flows.
  • This cooling medium usually water
  • This cooling medium extracts the heat absorbed from the roll shell.
  • Great attention must be paid to the arrangement of the cooling ducts, since they are not only responsible for the amount of heat that is extracted from the material to be cooled, but can also determine the shape or dimensions of the roller itself during operation.
  • Will a roller along its length or cooled to different extents stresses arise due to different thermal expansion. Among other things, this leads to a different deflection of the roll, which has a negative effect on the quality of the rolling stock.
  • the uniform or pre-programmed cooling of the casting material lengthways and crossways must be given the greatest attention.
  • An advantage of all known embodiments of the internal cooling is that the contact of water with the rolling stock is ruled out beforehand, which can be particularly important in the case of roll casting. For example, when aluminum is cast, contact with water leads to a violent reaction which leaves marks on the surface of the rolling stock or can even lead to accidents.
  • a roll with a cooling or heating device for the roll surface is known.
  • This apparatus has one or more chambers which are open against the roll surface.
  • the chambers have a substantially square cross section.
  • a fluid is introduced through the inlet channels.
  • Turbulence forms in the chambers during the actuation of the roller in question. This turbulence causes the fluid to remain in the chambers for a longer period of time and thus to achieve a greater cooling or heating effect. Although this turbulence increases efficiency, this system is sufficient, among other things. not for efficient casting rolls. New materials and high production rates also require increased heat dissipation with low material stress.
  • JP-A 57-177863 describes a device for cooling the outside of a roll of a roll caster for vertically cast known thin bands.
  • Spray nozzles for water and air supply nozzles are arranged in a hood arranged along the circumferential surface of the roller after the roll gap.
  • Scraper devices and compressed air prevent water residues from escaping from the hood and thus prevent water from coming into contact with the molten metal.
  • a suction device for the cooling medium is not provided.
  • separating plates arranged adjacent to the side walls of the hood are pressed onto the roller by means of spring force to prevent leakage.
  • the inventors have set themselves the task of creating a device and a method of the type described in JP-A 57-177863, which can apply the advantages of effective external cooling with higher efficiency, but it should be worked with simple means and - how for internal cooling - there is no impairment of the cast or rolled strip.
  • the terminal means for removing the cooling medium ensure that no liquid cooling medium reaches the cast or rolled strip. This is of fundamental importance, in particular when strip casting, with or without plating strips.
  • the end of the hood facing away from the roll gap is preferably designed as a drying chamber, with e.g. warm or cold drying air can be used.
  • the hoods can be followed by a cleaning device, in particular a brush or a bar, which acts on the roller surface.
  • a spray device for applying a separating and / or lubricant preferably a size or a rolling oil
  • the size can e.g. a graphite suspension.
  • the roll geometry and the strip profile transverse to the rolling direction can be influenced by the zone cooling by dividing the hoods by radial partitions.
  • the chambers formed in this way can contain different amounts of cooling medium, cooling media with different heat capacity and / or cooling media are supplied at different temperatures.
  • the method according to the invention for operating a device is characterized in that the roll surface is cooled with increasing intensity in the direction pointing away from the roll gap.
  • the externally cooled rollers can additionally be internally cooled, with the process being carried out in a closed circuit in a known manner.
  • the release agent can be added to the coolant and applied together with it.
  • the plant for casting aluminum shown in FIG. 1 comprises two rollers 10, 12 which rotate in the direction of the arrows 14, 16.
  • the liquid metal 18 is fed into a casting trough 20 and flows into the roll gap 26 via a casting nozzle 24 carried by a nozzle holder 22.
  • each roller 10, 12 is partially covered with a device for cooling the rollers extending from the area of the roller gap 26.
  • This device essentially consists of a hood 30 with a combination of spray nozzles 32 for the cooling medium 56 and suction elements 34 and a drying chamber 36, all of which extend at least over the entire length of the rollers.
  • the suction elements 34 are designed as strips which are U-shaped in cross section and open towards the roller surface 28 and which are closed laterally.
  • the suction connection 38 opens into a peripheral jacket space 42, which is separated by an intermediate wall 40, in which the suction negative pressure is generated and in which the cooling medium, in particular water, which is drawn off collects and through drain pipe, not shown, is discharged.
  • the supply lines 44 to the spray nozzles 32 pass through the jacket space 42.
  • the supply of cooling medium to these supply lines takes place individually through one or common lines (not shown).
  • the device for cooling rolls shown in FIG. 1 with alternating spray nozzles and suction elements draws a lot of energy from the roll surface 28.
  • the effective sealing also ensures that no cooling medium, in particular water, comes into contact with the metal strip 52, which in the present case is made of aluminum.
  • the cooling medium for example water, a rolling oil, an emulsion or a suspension
  • the cooling medium can be fed through all nozzles 32 in the same composition, the same amount and at the same temperature.
  • the parameters can also be freely combined with one another in such a way that the intensity of the cooling increases in the direction of the arrows 14, 16.
  • the cleaning brush 54 does not remove or only partially removes the release agent applied with the cooling medium 56; rather, it is distributed regularly.
  • the device for cooling rolls shown in FIG. 3 comprises a hood 30 with negative pressure and a jacket space 42 separated by an intermediate wall 40, in which the suction nozzle 38 of the suction elements 34 open.
  • a mixture of water and air is fed as cooling medium 56 into the two lower feed lines 44, and only water into the two upper feed lines 44.
  • the roller surface 28 thus becomes more distant from the nip Towards first gently, then cooled more abruptly.
  • the water supplied by the upper spray nozzles 32 is removed by the suction elements 34, the water in the lowermost spray nozzle 32 by a scraper 58 from the roller surface 28 and fed into the jacket space 42, from where it flows through an outlet 60.
  • Compressed air is supplied through terminal compressed air pipes 65 with nozzles 63 and the roller surface 28 is completely dried.
  • the roller 10, 12 shown in Fig. 4 for strip casting of metals is formed in two parts. It consists of a roller core 66 and a roller jacket 68.
  • the cooling medium is supplied or removed via the roller neck 70, through bores 72. In a closed circuit, the cooling medium is brought radially into the surface area, where it is guided into circumferential cooling grooves 74 in the roller core 66, which are delimited by the roller jacket 68.
  • the cast tape is labeled 76.
  • cooling grooves 78 run in the axial direction according to FIG. 5 and work in the counterflow principle.
  • the cooling medium is brought into the roll neck 70 in a pipe 80 and flows off in an annular space 82 delimited by this pipe 80 and a coaxial bore in the roll neck 70.
  • FIGS. 4 and 5 are known per se; they document, for example, usable exemplary embodiments of internally cooled rollers with the external cooling according to the invention.
  • the hoods 30 shown in FIG. 6 are designed as zone coolers, they subdivide the hood in the axial direction into the chambers 1-16.
  • the cooling medium can be fed separately to each of the 16 chambers. This allows the temperature profile to be influenced in the axial direction. Because a temperature profile the roll diameter changed accordingly, the strip profile can be influenced transversely to the rolling or casting direction with the zone cooling shown. This type of strip influencing is known per se in rolling mills, but it corresponds to external cooling without sealing.
  • the effect of the cooling medium is varied by regulating the amount, the temperature and / or at most the heat capacity of the coolant. 6 also shows that the cleaning brush 54 can also be arranged in front of the drying chamber 36.
  • the device according to the invention and the method for cooling rolls are primarily used for roll casting, for dissipating the heat of solidification, and for rolling metals, for dissipating the heat of deformation and friction.
  • the device and the method can also be used in similar systems for processing non-metallic materials, e.g. Plastics, paper, rubber, etc. are used.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Continuous Casting (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Abstract

The device serves to cool rolls (10, 12), especially in continuous strip casting and in rolling metals. The rolls are covered by hoods, each of which extends from the vicinity of roll nip (26) over a portion of roll surface (28). Spray devices are also provided for supplying a cooling medium (56) to parts of the roll surface. Liquid cooling medium (56) is collected and carried away in the lower part of hood (30). Hoods (30) are sealed off from the corresponding rolls (10, 12). A plurality of spray devices (32) in hood (30) serves to supply an at least partly liquid cooling medium (56) and extends axially over the entire length of the roll. Devices for removing liquid cooling medium (56) from roll surface (28) conduct the latter into a drain or suction device. Spray devices (32) and devices for removing cooling medium (56) are arranged individually or alternately in groups, with removal devices provided at both ends to remove cooling medium (56). Roll surface ( 28) is preferably cooled with increasing intensity in the direction away from roll nip (26).

Description

Die Erfindung betrifft eine Vorrichtung und ein Verfahren zum Kühlen von Walzen nach dem Oberbegriff von Patentanspruch 1 und 7.The invention relates to a device and a method for cooling rolls according to the preamble of patent claims 1 and 7.

Beim kontinuierlichen Bandgiessen von Metallen zwischen zwei Walzen beispielsweise wird die Giessform im wesentlichen durch den Giesspalt zwischen den Walzen und durch seitliche Abschlusswände gebildet. Die Einwirkzeit der Walzen ist verhältnismässug kurz, auf einer kleinen Strecke muss eine grosse Wärmemenge abgeführt werden, insbesondere die Erstarrungs-, Reibungs- und/oder Verformungswärme. Hierzu werden die Walzen mit speziellen Einrichtungen bzw. Verfahren gekühlt, nämlich durch Anspritzen von aussen oder durch eine Innenkühlung.In the case of continuous strip casting of metals between two rolls, for example, the casting mold is essentially formed by the casting gap between the rolls and by side end walls. The action time of the rollers is relatively short, a large amount of heat has to be dissipated over a short distance, in particular the heat of solidification, friction and / or deformation. For this purpose, the rolls are cooled using special devices or processes, namely by injection from the outside or by internal cooling.

Aus betrieblichen Gründen zieht der Fachmann bei Bandgiessanlagen die Innenkühlung der Walzen vor, bei welcher in der Regel zwischen einem Walzenkern und einem Walzenmantel Kühlkanäle angeordnet sind, durch welche ein Kühlmedium strömt. Dieses Kühlmedium, in der Regel Wasser, entzieht dem Walzenmantel die aufgenommene Wärme. Der Anordung der Kühlkanäle muss grosse Aufmerksamkeit geschenkt werden, da sie nicht nur für die Wärmemenge, welche dem zu kühlenden Gut entzogen wird, verantwortlich sind, sondern während des Betriebs auch die Form bzw. die Abmessungen der Walze selbst bestimmen können. Wird eine Walze entlang ihrer Länge oder ihres Umfangs unterschiedlich abgekühlt, so entstehen infolge unterschiedlicher Wärmeausdehnung Spannungen. Diese führen unter anderem zu einer unterschiedlichen Durchbiegung der Walze, welche sich negativ auf die Qualität des Walzguts auswirkt. Im speziellen ist aber auch der gleichmässigen oder vorprogrammierten Abkühlung des Giessmaterials längs und quer grösste Beachtung zu schenken.For operational reasons, the specialist in strip casting systems prefers the internal cooling of the rolls, in which cooling channels are generally arranged between a roll core and a roll jacket, through which a cooling medium flows. This cooling medium, usually water, extracts the heat absorbed from the roll shell. Great attention must be paid to the arrangement of the cooling ducts, since they are not only responsible for the amount of heat that is extracted from the material to be cooled, but can also determine the shape or dimensions of the roller itself during operation. Will a roller along its length or cooled to different extents, stresses arise due to different thermal expansion. Among other things, this leads to a different deflection of the roll, which has a negative effect on the quality of the rolling stock. In particular, however, the uniform or pre-programmed cooling of the casting material lengthways and crossways must be given the greatest attention.

Ein Vorteil aller bekannten Ausführungsformen der Innenkühlung besteht darin, dass der Kontakt von Wasser mit dem Walzgut zum vornherein ausgeschlossen ist, was insbesondere beim Walzgiessen wesentlich sein kann. So führt z.B. beim Bandgiessen von Aluminium der Kontakt mit Wasser zu einer heftigen Reaktion, die im Oberflächenbereich des Walzgutes Spuren hinterlässt oder sogar zu Unfällen führen kann.An advantage of all known embodiments of the internal cooling is that the contact of water with the rolling stock is ruled out beforehand, which can be particularly important in the case of roll casting. For example, when aluminum is cast, contact with water leads to a violent reaction which leaves marks on the surface of the rolling stock or can even lead to accidents.

Die Leistung durch Innenkühlung ist jedoch dadurch beschränkt, dass der Wärmedurchgang von der Walzenoberfläche zum Kühlmedium durch den Walzenmantel erfolgen muss.However, the performance due to internal cooling is limited by the fact that the heat transfer from the roll surface to the cooling medium must take place through the roll jacket.

Aus der US-PS 4 422 318 ist eine Walze mit einem Kühl- oder Heizapparat für die Walzenoberfläche bekannt. Dieser Apparat hat eine oder mehrere Kammern, welche gegen die Walzenoberfläche offen sind. Die Kammern haben einen im wesentlichen quadratischen Querschnitt. Durch die Einlasskanäle wird ein Fluid eingeführt. Während der Betätigung der betreffenden Walze bilden sich in den Kammern Turbulenzen. Diese Turbulenzen bewirken, dass das Fluid länger in den Kammern zurückbleiben und so einen grösseren Kühlungs- oder Heizeffekt erzielen können. Obwohl diese Turbulenzen den Wirkungsgrad erhöhen, genügt dieses System u.a. nicht für leistungsfähige Giesswalzen. Neue Materialien und hohe Produktionsraten erfordern zudem eine erhöhte Wärmeabfuhr bei geringer Materialbeanspruchung.From US-PS 4 422 318 a roll with a cooling or heating device for the roll surface is known. This apparatus has one or more chambers which are open against the roll surface. The chambers have a substantially square cross section. A fluid is introduced through the inlet channels. Turbulence forms in the chambers during the actuation of the roller in question. This turbulence causes the fluid to remain in the chambers for a longer period of time and thus to achieve a greater cooling or heating effect. Although this turbulence increases efficiency, this system is sufficient, among other things. not for efficient casting rolls. New materials and high production rates also require increased heat dissipation with low material stress.

Aus der JP-A 57-177863 ist eine Vorrichtung zum Aussenkühlen einer Walze einer Walzgiessanlage für vertikal gegossene dünne Bänder bekannt. In einer nach dem Walzspalt entlang der Mantelfläche der Walze angeordneten Haube sind Spritzdüsen für Wasser und Luftzufuhrdüsen angeordnet. Abstreifvorrichtungen und Druckluft verhindern den Austritt von Wasserrückständen aus der Haube und damit den Kontakt von Wasser mit dem geschmolzenen Metall. Eine Absaugvorrichtung für das Kühlmedium ist nicht vorgesehen. Dagegen werden benachbart der Seitenwände der Haube angeordnete Trennplatten zur Leckverhinderung mittels Federkraft auf die Walze gedrückt.JP-A 57-177863 describes a device for cooling the outside of a roll of a roll caster for vertically cast known thin bands. Spray nozzles for water and air supply nozzles are arranged in a hood arranged along the circumferential surface of the roller after the roll gap. Scraper devices and compressed air prevent water residues from escaping from the hood and thus prevent water from coming into contact with the molten metal. A suction device for the cooling medium is not provided. In contrast, separating plates arranged adjacent to the side walls of the hood are pressed onto the roller by means of spring force to prevent leakage.

Die Erfinder haben sich die Aufgabe gestellt, eine Vorrichtung und ein Verfahren der in der JP-A 57-177863 beschriebenen Art zu schaffen, welche die Vorteile einer wirksamen Aussenkühlung mit höherem Wirkungsgrad anwenden lassen, dabei soll jedoch mit einfachen Mitteln gearbeitet werden und - wie bei der Innenkühlung - keinerlei Beeinträchtigung des gegossenen oder gewalzten Bandes erfolgen.The inventors have set themselves the task of creating a device and a method of the type described in JP-A 57-177863, which can apply the advantages of effective external cooling with higher efficiency, but it should be worked with simple means and - how for internal cooling - there is no impairment of the cast or rolled strip.

In bezug auf die Vorrichtung wird die Aufgabe erfindungsgemäss nach dem Kennzeichen von Patentanspruch 1 gelöst.With regard to the device, the object is achieved according to the invention according to the characterizing part of patent claim 1.

Im wesentlichen werden zur Entfernung des flüssigen Kühlmediums von der Walzenoberfläche drei an sich bekannte, sich über die ganze Längsrichtung der Walzen erstreckende Mittel verwendet, wobei diese einzeln oder beliebig miteinander kombiniert sein können.

  • In Querschnitt U-förmig ausgebildete, seitlich geschlossene Absaugelemente mit gegen die Walze gerichteter Oeffnung,
  • Abstreifer bzw. Dichtleisten, welche auf der Walze aufliegen oder - in Verbindung mit einem in der Haube erzeugten Unterdruck - in einem Abstand von beispielsweise 0,1 mm angeordnet sind,
  • auf Leisten angeordnete Druckluftdüsen oder Druckluftschlitze.
Essentially three means known per se, which extend over the entire longitudinal direction of the rollers, are used to remove the liquid cooling medium from the roller surface, and these can be combined individually or in any combination.
  • Suction elements with a U-shaped cross section and laterally closed with an opening directed towards the roller,
  • Scrapers or sealing strips, which rest on the roller or - in connection with a negative pressure generated in the hood - are arranged at a distance of, for example, 0.1 mm,
  • compressed air nozzles or compressed air slots arranged on strips.

Die endständigen Mittel zum Entfernen des Kühlmediums gewährleisten, dass kein flüssiges Kühlmedium zum gegossenen bzw. gewalzten Band gelangt. Dies ist insbesondere beim Bandgiessen, mit oder ohne Plattierstreifen, von grundlegender Bedeutung.The terminal means for removing the cooling medium ensure that no liquid cooling medium reaches the cast or rolled strip. This is of fundamental importance, in particular when strip casting, with or without plating strips.

Zur weiteren Sicherstellung des kühlmediumfreien Kontakts der Walzen mit dem Walzgut ist das vom Walzspalt abgewandte Ende der Haube vorzugsweise als Trocknungskammer ausgebildet, wobei z.B. warme oder kalte Trocknungsluft eingesetzt werden kann.To further ensure the coolant-free contact of the rolls with the rolling stock, the end of the hood facing away from the roll gap is preferably designed as a drying chamber, with e.g. warm or cold drying air can be used.

In Drehrichtung der Walzen kann den Hauben eine Reinigungs- vorrichtung insbesondere eine Bürste oder ein Balken nachgeordnet sein, welche/r auf die Walzenoberfläche einwirkt.In the direction of rotation of the rollers, the hoods can be followed by a cleaning device, in particular a brush or a bar, which acts on the roller surface.

Weiter kann, in Drehrichtung der Walzen nach den Hauben bzw. nach der Reinigungsbürste oder nach dem Reinigungsbalken, eine Sprühvorrichtung zum Auftrag eines Trenn- und/oder Schmiermittels, vorzugsweise einer Schlichte oder eines Walzöls, angeordnet sein. Die Schlichte kann z.B. eine Graphitsuspension sein.Furthermore, in the direction of rotation of the rollers after the hoods or after the cleaning brush or after the cleaning bar, a spray device for applying a separating and / or lubricant, preferably a size or a rolling oil, can be arranged. The size can e.g. a graphite suspension.

Die Walzengeometrie und das Bandprofil quer zur Walzrichtung können durch die Zonenkühlung beeinflusst werden, indem die Hauben durch radiale Trennwände aufgeteilt sind. Den dadurch gebildeten Kammern können unterschiedliche Mengen Kühlmedium, Kühlmedien mit unterschiedlicher Wärmekapazität und/oder Kühlmedien mit unterschiedlicher Temperatur zugeführt werden.The roll geometry and the strip profile transverse to the rolling direction can be influenced by the zone cooling by dividing the hoods by radial partitions. The chambers formed in this way can contain different amounts of cooling medium, cooling media with different heat capacity and / or cooling media are supplied at different temperatures.

Das erfindungsgemässe Verfahren zum Betrieb einer Vorrichtung zeichnet sich dadurch aus, dass die Walzenoberfläche in vom Walzspalt wegweisender Richtung mit zunehmender Intensität gekühlt wird.The method according to the invention for operating a device is characterized in that the roll surface is cooled with increasing intensity in the direction pointing away from the roll gap.

Die Kühlung der Walzenoberfläche beider Walzen mit in vom Walzspalt wegweisender Richtung zunehmender Intensität erfolgt, im wesentlichen analog zur Zonenkühlung, vorzugsweise durch folgende Massnahmen, die auch in Kombination angewendet werden können:

  • Die Aufbringung einer zunehmenden Menge von Kühlmedium.
  • Die Aufbringung von Kühlmedien mit zunehmender Wärmekapazität.
  • Die Aufbringung von Kühlmedien mit abnehmender Temperatur.
The cooling of the roll surface of both rolls with increasing intensity in the direction pointing away from the roll gap takes place, essentially analogously to the zone cooling, preferably by the following measures, which can also be used in combination:
  • The application of an increasing amount of cooling medium.
  • The application of cooling media with increasing heat capacity.
  • The application of cooling media with decreasing temperature.

Als besonders günstig hat es sich erwiesen, in vom Walzspalt wegweisender Richtung folgende Medien auf die Walzenoberfläche aufzutragen: Ein Luft - Wassersprühgemisch, Wasser und abschliessend Trocknungsluft, wobei zusätzlich zu Beginn trockene oder feuchte Luft aufgebracht werden kann.It has proven to be particularly favorable to apply the following media to the roll surface in a direction pointing away from the roll gap: an air / water spray mixture, water and finally drying air, it being possible to apply dry or moist air at the beginning.

Die aussengekühlten Walzen können zusätzlich innengekühlt werden, wobei in bekannter Weise in geschlossenem Kreislauf gearbeitet wird.The externally cooled rollers can additionally be internally cooled, with the process being carried out in a closed circuit in a known manner.

Das Trennmittel kann dem Kühlmittel beigegeben und zusammen mit diesem aufgetragen werden.The release agent can be added to the coolant and applied together with it.

Die Erfindung wird anhand der folgenden Ausführungsbeispiele näher erläutert. Es zeigen schematisch:

  • Fig. 1 eine Anlage zum Bandgiessen von Aluminium mit einer Haube,
  • Fig. 2 eine Anlage zum Walzen von Stahl mit einer Haube,
  • Fig. 3 eine Vorrichtung zum Kühlen von Walzen, bei welcher die Walzenoberfläche in vom Walzspalt wegweisender Richtung mit zunehmender Intensität gekühlt wird,
  • Fig. 4 eine Walze mit radialer Innenkühlung,
  • Fig. 5 eine Walze mit axialer Innenkühlung, und
  • Fig. 6 in radialer Richtung in je 16 Kammern unterteilte Hauben von Vorrichtungen zum Kühlen von Walzen.
The invention is explained in more detail using the following exemplary embodiments. They show schematically:
  • 1 is a system for strip casting aluminum with a hood,
  • 2 a system for rolling steel with a hood,
  • 3 shows a device for cooling rolls, in which the roll surface is cooled with increasing intensity in the direction pointing away from the roll gap,
  • 4 shows a roller with radial internal cooling,
  • Fig. 5 is a roller with axial internal cooling, and
  • Fig. 6 in the radial direction divided into 16 chambers hoods of devices for cooling rollers.

Die in Fig. 1 dargestellte Anlage zum Giessen von Aluminium umfasst zwei Walzen 10, 12, welche sich in Richtung der Pfeile 14, 16 drehen. Das flüssige Metall 18 wird in einer Giessrinne 20 zugeführt und fliesst über eine von einem Düsenhalter 22 getragene Giessdüse 24 in den Walzspalt 26.The plant for casting aluminum shown in FIG. 1 comprises two rollers 10, 12 which rotate in the direction of the arrows 14, 16. The liquid metal 18 is fed into a casting trough 20 and flows into the roll gap 26 via a casting nozzle 24 carried by a nozzle holder 22.

Die Oberfläche 28 jeder Walze 10, 12 ist teilweise mit einer sich vom Bereich des Walzspalts 26 erstreckenden Vorrichtung zum Kühlen der Walzen bedeckt. Diese Vorrichtung besteht im wesentlichen aus einer Haube 30 mit einer Kombination von Spritzdüsen 32 für das Kühlmedium 56 und Absaugelementen 34 sowie einer Trocknungskammer 36, welche sich alle mindestens über die ganze Länge der Walzen erstrecken.The surface 28 of each roller 10, 12 is partially covered with a device for cooling the rollers extending from the area of the roller gap 26. This device essentially consists of a hood 30 with a combination of spray nozzles 32 for the cooling medium 56 and suction elements 34 and a drying chamber 36, all of which extend at least over the entire length of the rollers.

Die Absaugelemente 34 sind als im Querschnitt U-förmige, gegen die Walzenoberfläche 28 offene Leisten ausgebildet, welche seitlich verschlossen sind. Die Absaugstutzen 38 münden in einen durch eine Zwischenwand 40 abgetrennten, peripheren Mantelraum 42, in welchem der absaugende Unterdruck erzeugt wird, und in welchem sich das abgezogene Kühlmedium, insbesondere Wasser, sammelt und durch ein nicht dargestelltes Abflussrohr abgeführt wird.The suction elements 34 are designed as strips which are U-shaped in cross section and open towards the roller surface 28 and which are closed laterally. The suction connection 38 opens into a peripheral jacket space 42, which is separated by an intermediate wall 40, in which the suction negative pressure is generated and in which the cooling medium, in particular water, which is drawn off collects and through drain pipe, not shown, is discharged.

Die Zufuhrleitungen 44 zu den Spritzdüsen 32 durchgreifen den Mantelraum 42. Die Zufuhr von Kühlmedium zu diesen Zufuhrleitungen erfolgt einzeln durch eine oder gemeinsame, nicht dargestellte Leitung/en.The supply lines 44 to the spray nozzles 32 pass through the jacket space 42. The supply of cooling medium to these supply lines takes place individually through one or common lines (not shown).

Die in Fig. 1 gezeigte Vorrichtung zum Kühlen von Walzen mit alternierend angeordneten Spritzdüsen und Absaugelementen entzieht der Walzenoberfläche 28 viel Energie. Durch die wirksame Abdichtung ist zudem gewährleistet, dass kein Kühlmedium, insbesondere Wasser, mit der im vorliegenden Fall aus Aluminium bestehenden Metallband 52 in Kontakt treten.The device for cooling rolls shown in FIG. 1 with alternating spray nozzles and suction elements draws a lot of energy from the roll surface 28. The effective sealing also ensures that no cooling medium, in particular water, comes into contact with the metal strip 52, which in the present case is made of aluminum.

Ein schwenkbar an der Trocknungskammer 36, mit andern Worten am vom Walzspalt 26 abgewandten Ende der Haube 30, verbundener Reinigungsbalken 46 trägt einen Filz 48. Anstelle des Filzes kann auch ein anderer Werkstoff auf dem Reinigungsbalken 46 aufgebracht sein. Der Reinigungsbalken erfüllt neben seiner Funktion, der Reinigung der Walze von Ruckständen, noch die Aufgabe, ggf. vorgängig aufgetragene spezielle Trennmittel regelmässig zu verteilen.A cleaning bar 46 pivotally connected to the drying chamber 36, in other words at the end of the hood 30 facing away from the roll gap 26, carries a felt 48. Instead of the felt, another material can also be applied to the cleaning bar 46. In addition to its function of cleaning residues from the roller, the cleaning bar also fulfills the task of regularly distributing any previously applied special release agents.

Im vorliegenden Beispiel werden spezielle Trenn- und/oder Schmiermittel nach dem Reinigungsbalken 46 mit Düsen 50 aufgetragen.In the present example, special release agents and / or lubricants are applied after the cleaning bar 46 with nozzles 50.

Das Kühlmedium, beispielsweise Wasser, ein Walzöl eine Emulsion oder eine Suspension, kann durch alle Düsen 32 in gleicher Zusammensetzung, gleicher Menge und mit gleicher Temperatur zugeführt werden. Wie oben gezeigt, können die Parameter auch frei derart miteinander kombiniert werden, dass die Intensität der Kühlung in Richtung der Pfeile 14, 16, zunimmt.The cooling medium, for example water, a rolling oil, an emulsion or a suspension, can be fed through all nozzles 32 in the same composition, the same amount and at the same temperature. As shown above, the parameters can also be freely combined with one another in such a way that the intensity of the cooling increases in the direction of the arrows 14, 16.

Die in Fig. 2 dargestellte Anlage zum Walzen eines Metallbands 52, im vorliegenden Fall eines Stahlbands, unterscheidet sich, abgesehen von der Metallzufuhr, von der Anlage gemäss Fig. 1 dadurch, dass

  • nach der Trocknungskammer 36 eine Reinigungsbürste 54 zum Entfernen von Walzgutpartikeln auf der Walze angeordnet ist, und
  • das Trennmittel zusammen mit dem Kühlmedium 56 auf die Walzenoberfläche 28 gespritzt wird.
The plant shown in Fig. 2 for rolling a metal strip 52, in the present case a steel strip, differs from the system according to FIG. 1, apart from the metal feed, in that
  • after the drying chamber 36 there is a cleaning brush 54 for removing rolling stock particles on the roller, and
  • the release agent is sprayed onto the roller surface 28 together with the cooling medium 56.

Die Reinigungsbürste 54 entfernt mit dem Kühlmedium 56 aufgetragenes Trennmittel nicht oder nur zu einem geringen Teil, vielmehr wird es regelmässig verteilt.The cleaning brush 54 does not remove or only partially removes the release agent applied with the cooling medium 56; rather, it is distributed regularly.

Die in Fig. 3 dargestellte Vorrichtung zum Kühlen von Walzen umfasst eine Haube 30 mit Unterdruck und einem durch eine Zwischenwand 40 abgetrennten Mantelraum 42, in welchen die Absaugstutzen 38 der Absaugelemente 34 münden.The device for cooling rolls shown in FIG. 3 comprises a hood 30 with negative pressure and a jacket space 42 separated by an intermediate wall 40, in which the suction nozzle 38 of the suction elements 34 open.

In die beiden unteren Zufuhrleitungen 44 wird als Kühlmedium 56 ein Gemisch aus Wasser und Luft zugeführt, in die beiden oberen Zufuhrleitungen 44 ausschliesslich Wasser. Damit wird die Walzenoberfläche 28 in vom Walzspalt wegführender Richtung vorerst sanfter, dann schroffer abgekühlt. Das von den oberen Spritzdüsen 32 zugeführte Wasser wird von den Absaugelementen 34, das Wasser der untersten Spritzdüse 32 von einem Abstreifer 58 von der Walzenoberflache 28 entfernt und in den Mantelraum 42 geführt, von wo es durch einen Abfluss 60 abfliesst. Durch endständige Druckluftrohre 65 mit Düsen 63 wird Druckluft zugeführt und die Walzenoberfläche 28 vollständig getrocknet.A mixture of water and air is fed as cooling medium 56 into the two lower feed lines 44, and only water into the two upper feed lines 44. The roller surface 28 thus becomes more distant from the nip Towards first gently, then cooled more abruptly. The water supplied by the upper spray nozzles 32 is removed by the suction elements 34, the water in the lowermost spray nozzle 32 by a scraper 58 from the roller surface 28 and fed into the jacket space 42, from where it flows through an outlet 60. Compressed air is supplied through terminal compressed air pipes 65 with nozzles 63 and the roller surface 28 is completely dried.

Die in Fig. 4 dargestellte Walze 10, 12 zum Bandgiessen von Metallen ist zweiteilig ausgebildet. Sie besteht aus einem Walzenkern 66 und einem Walzenmantel 68. Das Kühlmedium wird über den Walzenzapfen 70, durch Bohrungen 72, zu- bzw. abgeführt. In einem geschlossenen Kreislauf wird das Kühlmedium radial in den Oberflächenbereich gebracht, wo es in umlaufende Kühlnuten 74 im Walzenkern 66, welche durch den Walzenmantel 68 begrenzt sind, geführt wird. Das gegossene Band ist mit 76 bezeichnet.The roller 10, 12 shown in Fig. 4 for strip casting of metals is formed in two parts. It consists of a roller core 66 and a roller jacket 68. The cooling medium is supplied or removed via the roller neck 70, through bores 72. In a closed circuit, the cooling medium is brought radially into the surface area, where it is guided into circumferential cooling grooves 74 in the roller core 66, which are delimited by the roller jacket 68. The cast tape is labeled 76.

Im Gegensatz zu Fig. 4 verlaufen gemäss Fig. 5 die Kühlnuten 78 in axialer Richtung und arbeiten im Gegenstromprinzip. Das Kühlmedium wird in einem Rohr 80 in den Walzenstutzen 70 gebracht und fliesst in einem durch dieses Rohr 80 und eine koaxiale Bohrung im Walzenzapfen 70 berenzten Ringraum 82 ab.In contrast to FIG. 4, the cooling grooves 78 run in the axial direction according to FIG. 5 and work in the counterflow principle. The cooling medium is brought into the roll neck 70 in a pipe 80 and flows off in an annular space 82 delimited by this pipe 80 and a coaxial bore in the roll neck 70.

Die in Fig. 4 und 5 dargestellten Varianten für eine Innenkühlung sind an sich bekannt, sie dokumentieren mit der erfindungsgemässen Aussenkühlung beispielsweise verwendbare Ausführungsbeispiele von innengekühlten Walzen.The variants for internal cooling shown in FIGS. 4 and 5 are known per se; they document, for example, usable exemplary embodiments of internally cooled rollers with the external cooling according to the invention.

Die in Fig. 6 dargestellten Hauben 30 sind als Zonenkühler ausgebildet, sie unterteilen die Haube in axialer Richtung in die Kammern 1 - 16. Das Kühlmedium kann zu jeder einzelnen der 16 Kammern separat zugeführt werden. Dadurch kann eine Beeinflussung des Temperaturprofils in Axialrichtung erreicht werden. Da ein Temperaturprofil den Walzendurchmesser entsprechend verändert, kann mit der gezeigten Zonenkühlung das Bandprofil quer zur Walz- bzw. Giessrichtung beeinflusst werden. Diese Art der Bandbeeinflussung ist bei Walzwerken an sich bekannt, sie entspricht jedoch einer Aussenkühlung ohne Abdichtung. Die Variation der Wirkung des Kühlmediums erfolgt durch Regulierung der Menge, der Temperatur und/oder allenfalls der Wärmekapazität des Kühlmittels. Weiter zeigt Fig. 6, dass die Reinigungsbürste 54 auch vor der Trocknungskammer 36 angeordnet sein kann.The hoods 30 shown in FIG. 6 are designed as zone coolers, they subdivide the hood in the axial direction into the chambers 1-16. The cooling medium can be fed separately to each of the 16 chambers. This allows the temperature profile to be influenced in the axial direction. Because a temperature profile the roll diameter changed accordingly, the strip profile can be influenced transversely to the rolling or casting direction with the zone cooling shown. This type of strip influencing is known per se in rolling mills, but it corresponds to external cooling without sealing. The effect of the cooling medium is varied by regulating the amount, the temperature and / or at most the heat capacity of the coolant. 6 also shows that the cleaning brush 54 can also be arranged in front of the drying chamber 36.

Die erfindungsgemässe Vorrichtung und das Verfahren zum Kühlen von Walzen werden in erster Linie für das Walzgiessen, zum Abführen der Erstarrungswärme, und zum Walzen von Metallen, zum Abführen der Deformations- und Reibungswärme, verwendet. Die Vorrichtung und das Verfahren können jedoch auch bei ähnlichen Anlagen zur Verarbeitung von nichtmetallischen Werkstoffen, z.B. Kunststoffe, Papier, Gummi usw., angewendet werden.The device according to the invention and the method for cooling rolls are primarily used for roll casting, for dissipating the heat of solidification, and for rolling metals, for dissipating the heat of deformation and friction. However, the device and the method can also be used in similar systems for processing non-metallic materials, e.g. Plastics, paper, rubber, etc. are used.

Claims (10)

1. Device for cooling rolls (10, 12) especially in continuous strip casting and in rolling metals, said rolls (10, 12) each being covered by a hood extending from the region of the roll nip (26) over part of the roll surface (28) and sealed off from the roll, the said hoods being provided with means (32, 44) for supplying a cooling medium (56) to parts of the roll surface in the form of spray devices (32) extending several times in the axial direction along the entire length of the roll in the region of the hoods (30), and means for removing the cooling medium (56) and a drainage or suction device for liquid cooling medium (56) collecting in the lower part of the hood (30), characterised in that the means (34, 58, 63) for removing this cooling medium (56) from the roll surface (28) are disposed individually or in groups alternately with spray devices (32), with means (34, 58, 63) for removing the cooling medium (56) being disposed at either end in the circumferential direction.
2. Device according to claim 1, characterised in that the means for removing the liquid cooling medium (56) from the roll surface (28) are suction elements (34) of U-shaped cross section and closed at the sides extending from the roll surface (28) in the longitudinal direction of the rolls (10, 12), wipers (58), compressed air nozzles and/or at least one compressed-air slot (63).
3. Device according to claim 1 or claim 2, characterised in that the end of the hood (30) remote from the roll nip (26) is designed as a drying chamber (36) open towards the roll (10, 12).
4. Device according to one of claims 1 - 3, characterised in that the hood (30) has a cleaning device, preferably a brush (54) or a bar (46), acting on the roll surface (28), disposed downstream of the hood (30) in the direction of rotation (14, 16) of the rolls (10, 12).
5. Device according to one of claims 1 - 4, characterised in that a spray device (50) for applying a parting agent and/or a lubricant, preferably a dressing or a rolling oil, is disposed downstream of the hood (30) or brush (54) or bar (46) in the direction of rotation (14, 16) of the rolls (10, 12).
6. Device according to one of claims 1 - 5, characterised in that the hoods (30) are divided preferably into at least three chambers in the radial direction.
7. Method for operating a device for cooling rolls (10, 12) especially in continuous strip casting and in rolling metals, said rolls (10, 12) each being covered by a hood extending from the region of the roll nip (26) over part of the roll surface (28) and sealed off from the roll, the said hoods being provided with means (32, 44) for supplying a cooling medium (56) to parts of the roll surface in the form of spray devices (32) extending several times in the axial direction along the entire length of the roll in the region of the hoods (30) and means for removing the cooling medium (56) and a drainage or suction device for liquid cooling medium (56) collecting in the lower part of the hood (30), characterised in that the roll surface (28) is cooled with an intensity increasing in the direction away from the roll nip (26).
8. Method according to claim 7, characterised in that an increasing quantity of cooling medium (56) and/or cooling medium with an increasing thermal capacity and/or cooling medium with a decreasing temperature is sprayed in the direction away from the roll nip (26).
9. Method according to claim 7 or claim 8, characterised in that air, an air/water mixture, water and drying air are applied in the direction away from the roll nip (26).
10. Method according to one of claims 7 - 9, characterised in that the rolls (10, 12) are also cooled internally.
EP88810680A 1987-10-23 1988-10-03 Device and method for cooling of rolls Expired - Lifetime EP0313516B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88810680T ATE74807T1 (en) 1987-10-23 1988-10-03 DEVICE AND METHOD FOR COOLING ROLLS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH4167/87 1987-10-23
CH4167/87A CH675974A5 (en) 1987-10-23 1987-10-23

Publications (2)

Publication Number Publication Date
EP0313516A1 EP0313516A1 (en) 1989-04-26
EP0313516B1 true EP0313516B1 (en) 1992-04-15

Family

ID=4271056

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88810680A Expired - Lifetime EP0313516B1 (en) 1987-10-23 1988-10-03 Device and method for cooling of rolls

Country Status (6)

Country Link
US (1) US4934444A (en)
EP (1) EP0313516B1 (en)
AT (1) ATE74807T1 (en)
BR (1) BR8801801A (en)
CH (1) CH675974A5 (en)
DE (1) DE3870145D1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101912881A (en) * 2010-07-27 2010-12-15 大连华锐股份有限公司 Rolling mill roll box type stage cooling device
DE102012101474A1 (en) * 2012-02-23 2013-08-29 Benteler Automobiltechnik Gmbh Method for manufacturing door impact absorber of motor car, involves conveying strip into embossing tool, and isolating manufactured component, where strip passes in embossing tool up to length of component during rotation of rollers

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5046347A (en) * 1989-10-10 1991-09-10 Alcan International Limited Coolant containment apparatus for rolling mills
KR920019450A (en) * 1991-04-10 1992-11-19 라우에너 엔지니어링 악티엔게젤샤프트 Roll casting method
US6354364B1 (en) 1994-03-30 2002-03-12 Nichols Aluminum-Golden, Inc. Apparatus for cooling and coating a mold in a continuous caster
US6125915A (en) * 1994-03-30 2000-10-03 Golden Aluminum Company Method of and apparatus for cleaning a continuous caster
US5697423A (en) * 1994-03-30 1997-12-16 Lauener Engineering, Ltd. Apparatus for continuously casting
DE20006508U1 (en) * 2000-04-08 2000-08-31 Achenbach Buschhütten GmbH, 57223 Kreuztal Roller cooling and / or lubricating device for cold strip rolling mills, in particular fine strip and foil rolling mills
IT1315084B1 (en) * 2000-04-20 2003-02-03 Danieli Off Mecc COOLING DEVICE FOR ROLLING RINGS AND RELATED PROCEDURE.
US6892793B2 (en) * 2003-01-08 2005-05-17 Alcoa Inc. Caster roll
CN100335203C (en) * 2003-01-08 2007-09-05 阿尔科公司 Caster roll
ES2292330B1 (en) * 2003-12-10 2008-12-01 Alcoa Inc. COLADA ROLLER.
DE102004048619A1 (en) † 2004-10-06 2006-04-13 Sms Demag Ag Method and device for cleaning rollers
EP2014379A1 (en) * 2007-06-04 2009-01-14 ArcelorMittal France Rolling mill with cooling device and rolling process
JP5428173B2 (en) * 2008-03-21 2014-02-26 株式会社Ｉｈｉ Rolling mill and rolling method
DE102009053073A1 (en) * 2009-03-03 2010-09-09 Sms Siemag Aktiengesellschaft Method and cooling device for cooling the rolls of a roll stand
CN102310175B (en) * 2010-06-30 2013-06-19 宝山钢铁股份有限公司 Drive roller of continuous casting machine provided with annular cooling slot
EP2489446A1 (en) * 2011-02-17 2012-08-22 Linde Aktiengesellschaft Nozzle header
GB2495512B (en) * 2011-10-12 2013-12-11 Siemens Plc Rolling apparatus
EP2581150A1 (en) 2011-10-12 2013-04-17 Siemens Aktiengesellschaft Casting wheel device with cryogenic cooling of the casting wheels
DE102014004487A1 (en) * 2014-03-28 2015-10-15 Thyssenkrupp Ag Non-contact roller cleaning device and method therefor
DE102014213401A1 (en) * 2014-03-28 2015-10-01 Sms Group Gmbh Apparatus for applying and extracting operating fluids in the inlet of cold rolling mills
JP6194874B2 (en) * 2014-12-08 2017-09-13 スターライト工業株式会社 Maintenance wiper for steelmaking
GB2537162B (en) * 2015-04-10 2017-04-19 Primetals Technologies Austria GmbH Work roll cooling apparatus and method
BE1025125B1 (en) * 2017-09-04 2018-10-31 Centre de Recherches Métallurgiques asbl-Centrum voor Research in de Metallurgie vzw CONTACTLESS TUMBLER AND INDUSTRIAL INSTALLATION COMPRISING SUCH A TUMBLER
CN108421828A (en) * 2018-05-16 2018-08-21 嘉兴市乍浦杭湾重型机械有限公司 One kind rolling rod cooling device forging
RU2761304C1 (en) 2018-06-13 2021-12-07 Новелис Инк. Systems and methods for removing viscous materials during processing of metal products
RU2730826C1 (en) 2018-06-13 2020-08-26 Новелис Инк. Devices and methods for retention of viscous materials in rolling production
BR112020001891A2 (en) 2018-06-13 2020-08-04 Novelis Inc. systems and methods for cooling a roll in metal processing
DE102018212168A1 (en) 2018-07-23 2020-01-23 Sms Group Gmbh Roll stand and method for cooling the upper work roll of a roll stand
CN110026436A (en) * 2019-05-20 2019-07-19 安徽协同创新设计研究院有限公司 A kind of band and strip rolling mill roll clast processing method

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD55925A (en) *
US49053A (en) * 1865-07-25 Improvement in the manufacture of iron and steel
US21261A (en) * 1858-08-24 Washing-machine
GB429005A (en) * 1934-01-11 1935-05-22 Finspongs Metallverks Aktiebol Method of and means for manufacturing sheet metal, strips, tubes, section bars and the like directly from a molten material
US2075394A (en) * 1934-12-21 1937-03-30 Clarence W Hazelett Method of surfacing metallic rolls for rolling metals and apparatus therefor
GB645305A (en) * 1947-07-07 1950-10-25 Robertshaw Fulton Controls Co Continuous casting of metal
US3670400A (en) * 1969-05-09 1972-06-20 Nat Res Dev Process and apparatus for fabricating a hot worked metal layer from atomized metal particles
CH536151A (en) * 1971-10-04 1973-04-30 Vni I Pk I Metallurgischeskogo Continuous roll metal casting mould - for metal strip
US3757847A (en) * 1971-10-07 1973-09-11 P Sofinsky Roll mould with cooling system
GB1511247A (en) * 1974-06-11 1978-05-17 Alcan Res & Dev Method and apparatus for cooling the rolls of rolling mills
IT1135049B (en) * 1980-01-25 1986-08-20 Escher Wyss Sa CYLINDER WITH A CYLINDRICAL SURFACE TO BE HEATED OR COOLED
DE3005526A1 (en) * 1980-02-12 1981-10-01 Escher Wyss AG, Zürich Heating-cooling roller - uses fluid eddy developed by internal chambers for heat exchange
JPS57177863A (en) * 1981-04-28 1982-11-01 Kawasaki Steel Corp Cooler for outside circumferential surface of roll for production of quickly cooled thin metallic strip
JPS58176009A (en) * 1982-04-07 1983-10-15 Kawasaki Steel Corp Roll cooling device
GB2156255A (en) * 1984-03-23 1985-10-09 Davy Mckee Rolling mill
JPS60231511A (en) * 1984-04-27 1985-11-18 Kawasaki Steel Corp Cooling method of rolling roll
FR2568495B1 (en) * 1984-08-02 1986-10-24 Cegedur DEVICE FOR BRUSHING AND CONTINUOUS LUBRICATION OF ROLLER ROLLS FOR FLAT ROLLER PRODUCTS.
US4614220A (en) * 1984-11-16 1986-09-30 The United States Of America As Represented By The Secretary Of The Air Force Method for continuously casting thin sheet

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101912881A (en) * 2010-07-27 2010-12-15 大连华锐股份有限公司 Rolling mill roll box type stage cooling device
DE102012101474A1 (en) * 2012-02-23 2013-08-29 Benteler Automobiltechnik Gmbh Method for manufacturing door impact absorber of motor car, involves conveying strip into embossing tool, and isolating manufactured component, where strip passes in embossing tool up to length of component during rotation of rollers

Also Published As

Publication number Publication date
DE3870145D1 (en) 1992-05-21
ATE74807T1 (en) 1992-05-15
BR8801801A (en) 1989-05-23
CH675974A5 (en) 1990-11-30
EP0313516A1 (en) 1989-04-26
US4934444A (en) 1990-06-19

Similar Documents

Publication Publication Date Title
EP0313516B1 (en) Device and method for cooling of rolls
EP2403663B1 (en) Method and cooling device for cooling the rollers of a roll stand
EP0294407B1 (en) Process and device for cooling rollers
DE3616070C2 (en)
DE68912671T2 (en) Double-strip continuous casting machine with guide and cooling for the casting product for high-speed casting of products with a liquid core.
EP0899030A2 (en) Device and method for cooling the working rolls on the outlet side of a roll stand
DE4111911A1 (en) ROLLER
EP0233147B1 (en) Method and apparatus for continuous twin-roll casting
DE2154675C3 (en) Plant for the production of metal strips
EP0998993B1 (en) Method and device for cooling rolling stock at rolling-temperature, in particular hot wide strip
WO1996023081A1 (en) Method and device for cooling hot briquetted spongy iron
DE3801085C2 (en)
DE102010016038B4 (en) Apparatus and method for cleaning and cooling workpieces
EP0875304B1 (en) Method and cooling aggregate for cooling rolling stock at rolling-temperature, especially hot wide strip
DE3935190C2 (en)
DE2629440B2 (en) Internally cooled roller table roller for a sheet metal rolling mill
DE2024108C3 (en) Guide device for incompletely continuously cooled cast rods made of metal, in particular made of steel
DE2558832C2 (en) Device for the treatment of rolled steel products
EP0475940B1 (en) Process and device for manufacturing metal strips composed of two or more layers by cold-rolling plating
DE102022204686A1 (en) Two-roller casting device for producing a cast metal strip, and method for cooling and/or cleaning an outer surface of a casting roll of a two-roller casting device
DE10295852B4 (en) Device for controllable cooling of rolling stock
DE3141577A1 (en) Steam preheating of endless flexible casting strands in continuously operating casting machines
DE2725375A1 (en) METHOD AND DEVICE FOR COOLING ROLLERS
WO2001017711A1 (en) Continuous casting mould that is protected against wear and tear
CH668721A5 (en) Method and device for casting metallbaendern directly from the melt.

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT CH DE ES FR GB IT LI LU

17P Request for examination filed

Effective date: 19891009

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: LAUENER ENGINEERING AG

17Q First examination report despatched

Effective date: 19910121

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT CH DE ES FR GB IT LI LU

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19920415

REF Corresponds to:

Ref document number: 74807

Country of ref document: AT

Date of ref document: 19920515

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3870145

Country of ref document: DE

Date of ref document: 19920521

ITF It: translation for a ep patent filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
EPTA Lu: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19950829

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19950925

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19950929

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Effective date: 19961003

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19961031

Ref country code: CH

Effective date: 19961031

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19970701

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 20020912

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20020918

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20021014

Year of fee payment: 15

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20031003

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20031003

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20031003

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040630

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20051003