EP2651577A1 - Method and apparatus for applying a lubricant while rolling metallic rolled stock - Google Patents

Method and apparatus for applying a lubricant while rolling metallic rolled stock

Info

Publication number
EP2651577A1
EP2651577A1 EP11749856.8A EP11749856A EP2651577A1 EP 2651577 A1 EP2651577 A1 EP 2651577A1 EP 11749856 A EP11749856 A EP 11749856A EP 2651577 A1 EP2651577 A1 EP 2651577A1
Authority
EP
European Patent Office
Prior art keywords
spray
lubricant
rolling
outlet openings
rolling oil
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.)
Granted
Application number
EP11749856.8A
Other languages
German (de)
French (fr)
Other versions
EP2651577B1 (en
Inventor
Valentin Atalla
Jian Chen
Gernot Dirisamer
Manfred Eder
Kurt Haller
Konrad Krimpelstätter
Krzysztof Mazurowski
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.)
Primetals Technologies Austria GmbH
Original Assignee
SIEMENS VAI METALS TECHNOLOGIES GmbH
Siemens VAI Metals Technologies GmbH Austria
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 SIEMENS VAI METALS TECHNOLOGIES GmbH, Siemens VAI Metals Technologies GmbH Austria filed Critical SIEMENS VAI METALS TECHNOLOGIES GmbH
Priority to EP11749856.8A priority Critical patent/EP2651577B1/en
Publication of EP2651577A1 publication Critical patent/EP2651577A1/en
Application granted granted Critical
Publication of EP2651577B1 publication Critical patent/EP2651577B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
    • B05B1/04—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape in flat form, e.g. fan-like, sheet-like
    • B05B1/046—Outlets formed, e.g. cut, in the circumference of tubular or spherical elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
    • B05B1/20—Arrangements of several outlets along elongated bodies, e.g. perforated pipes or troughs, e.g. spray booms; Outlet elements therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/08—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point
    • B05B7/0884—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point the outlet orifices for jets constituted by a liquid or a mixture containing a liquid being aligned
    • 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
    • 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
    • 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
    • B21B45/0239—Lubricating
    • B21B45/0245—Lubricating devices
    • B21B45/0248—Lubricating devices using liquid lubricants, e.g. for sections, for tubes
    • B21B45/0251—Lubricating devices using liquid lubricants, e.g. for sections, for tubes for strips, sheets, or plates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
    • B05B7/0416—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid
    • B05B7/0483—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid with gas and liquid jets intersecting in the mixing chamber
    • 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
    • B21B45/0239—Lubricating
    • B21B45/0245—Lubricating devices
    • B21B45/0248—Lubricating devices using liquid lubricants, e.g. for sections, for tubes

Definitions

  • the invention generally relates to the technical field of rolling a metallic material to be rolled, in particular one in a nip between two work rolls
  • a lubricant is used.
  • liquid or gaseous treatment media are used in the rolling of metallic rolling stock, for example a metal strip, for the purpose of lubrication and cooling.
  • These treatment media vary depending on the type of rolling process: during hot rolling, where the rolling stock is heated to several 100 ° C
  • Cold rolling in which the temperature of the rolling stock before the rolling process is usually below 100 ° C, the lubrication in the nip is usually done by a cold rolling oil, in addition, a cooling liquid is used.
  • the invention is based on the object to provide a method and apparatus for applying a lubricant when rolling a metallic rolling stock, in which the lubricant consumption is minimized.
  • the medium used for roller gap lubrication is not a rolling fluid but a spray, that is to say a mixture of rolling oil and a carrier gas.
  • the lubricant is divided in an atomizer into finely distributed liquid drops and by means of the
  • Carrier gas entered into the nip can either by spraying on the surface of the work rolls, and / or on the surface of the incoming into the roll gap
  • Lubricant as a spray the lubricant consumption can be kept relatively low.
  • the droplet-form lubricant wets very selectively only ene
  • the decisive factor is merely that a sufficient amount of oil for lubrication reaches the nip; This can basically be done by spraying on the surface of the work rolls or on the surface of the incoming
  • the concentration of the lubricant in the nip is significantly higher. This increases the efficiency of the lubricant used, because just as much rolling oil passes into the rolling gap as required depending on the type of rolling stock to reduce friction in the nip is. Seen in the width direction of the rolled strip, the invention enables a uniform application of the lubricant. This reduces the risk that in the nip in the width direction different friction conditions
  • the desired final thickness of the metal is comparatively low and it can easily lead to a local breakage of the lubricating film.
  • a good surface quality of the metal strip is sought, which requires adequate lubrication in the nip.
  • Another advantage is the fact that the lubricant is used in pure form, that is not in the form of an emulsion, so that an emulsifier in the lubricant is not required. This results in the advantage that the oil is relatively easy from
  • Coolant e.g. Water
  • Coolant e.g. Water
  • Circulation can be performed.
  • Cross sections can overlap in the edge area. In this way, viewed over the width of the rolled strip, a fan-shaped overall spray can be generated, with which the lubricant homogeneous and targeted in the nip
  • spray nozzles which have at least two outlet openings. Depending on the shape of these at least two
  • Outlets can be very well a uniform surface concentration of the lubricant during the order
  • nozzles that are spherical have curved mouthpiece. On this curved
  • Mouthpiece are two with respect to an axis of symmetry
  • a spray can be formed with a comparatively small number of nozzles, which applies the lubricant evenly.
  • the cross section of these sprays
  • the spray is formed from a juxtaposition of individual spray jets, each of these spray jets in its
  • Seen width direction is approximately parallel to the axis of the two work rolls.
  • a carrier medium for the lubricant droplets can be used in a simple embodiment of the process air.
  • Figure 1 is a schematic vertical section through a
  • Roll stand the arrangement of the invention Apparatus for introducing a lubricant into the roll gap
  • Figure 2 shows a spray bar with lined up
  • Figure 3 is a sectional view of a
  • Atomizing device including spray nozzle
  • Figure 4 shows an embodiment of the mouthpiece of a spray nozzle in a spatial and in a sectional view
  • Figure 5 is a detailed view of the rolling gap lubrication in a comparative representation between lubrication with emulsion and lubrication with rolling oil.
  • FIG. 1 shows in a highly simplified representation a vertical section through a rolling stand.
  • the rolling stand consists essentially of the two work rolls 2 'and 2' ', and the respective support rollers 3' and 3 ''. in the
  • Rolling gap 8 is between the two work rolls 2 'and 2' 'a rolled strip 28 in the direction indicated by the arrow from left to right passed.
  • the device 1 according to the invention is sketched in each case on the upper side and the underside of the rolled strip 28, which sprays an atomised rolling oil in the direction of the roll gap 8. The atomization of the rolling oil takes place in one
  • Atomizing device 4 which is supplied via lines 6 and 7 rolling oil or air. As will be explained in more detail below, in the atomizing device 4 is a mixture of air and
  • Spray nozzles 5 is applied as a spray. This spray is deposited on the surface 21 of the work rolls 2 'and 2' 'and / or on the surface 23 of the rolled strip 28, whereby the desired reduction of the
  • Friction conditions in the nip 8 is effected.
  • rolling oil is collected together with the coolant and recycled by means of a conveying and reprocessing plant.
  • Each spray nozzle 5 is in each case via a first line 6 rolling oil and via a second line 7 air
  • Each spray nozzle 5 generates a spray jet 9, which is formed flat in cross section 15 seen.
  • FIG. 3 shows a sectional drawing of FIG
  • Atomizing device 4 As already stated, this atomizing device 4 in each case via a connecting line 6 rolling oil and via another connecting line 7 air
  • Apertures can be adjusted in a wide range. These orifices in the inlet of air and oil are in the
  • Atomizer 4 interchangeable. That's it possible to produce a suitable mixture of air and liquid particles as required.
  • This mixture is fed via a short connector of a spray nozzle 5.
  • the spray nozzle 5 is spherically curved in the region of an orifice 18. In the area of the spherical curvature 12, two outlet openings 10 are formed. Each of these
  • Outlet openings 10 is formed by a slot in the region of the mouth 18.
  • the preparation of this slot in the spherical curvature 10 can be easily done by a cut with a saw blade.
  • FIG. 4 shows two views of the mouthpiece 18: in the upper illustration, the mouthpiece 18 is in one
  • the mouthpiece 18 is convexly curved outwards.
  • the curvature 12 is a circular arc.
  • a corresponding curvature is also formed on the inner wall of the mouthpiece 18. At the zenith of curvature 12 are two through cuts
  • the planes of the incisions 10 are at an angle 30 to each other.
  • the slot width 14 of these cuts is advantageously between about 0.6 to 0.7 mm.
  • a spray 9 is formed, which has a flat cross-sectional area and a substantially homogeneous
  • Distribution of the lubricant concentration has.
  • Figure 5 illustrates in a highly simplified representation of the lubrication in the nip, the upper diagram shows the lubrication with emulsion according to the state of Technique, the lower illustration, the invention
  • Cost advantage Another advantage results from the greatly reduced friction in the nip, whereby the rolling forces and rolling moments for the rolling process can be reduced. Especially during cold rolling, a very good surface quality of the rolled strip can be achieved.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Nozzles (AREA)

Abstract

The invention relates to a method for applying a lubricant while rolling metallic rolled stock, in particular a rolled strip (24) guided through a roll gap (8) between two work rolls (2', 2''), characterized by the following method steps: producing a mixture of lubricant and a carrier gas in an atomization device (4); supplying the mixture to individual spray nozzles (5) of an arrangement of spray nozzles, in order to produce a continuous overall spray jet (19) in the direction of the width of the rolled strip; applying the mixture by means of the overall spray jet (19) to the surface (21) of at least one of the work rolls and/or to the surface (23) of the rolled strip (24).

Description

Beschreibung description
Verfahren und Vorrichtung zum Aufbringen eines Schmiermittels beim Walzen eines metallischen Walzgutes Method and device for applying a lubricant when rolling a metallic rolling stock
Technisches Gebiet Technical area
Die Erfindung betrifft allgemein das technische Gebiet des Walzens eines metallischen Walzgutes, insbesondere eines in einem Walzspalt zwischen zwei Arbeitswalzen hindurch The invention generally relates to the technical field of rolling a metallic material to be rolled, in particular one in a nip between two work rolls
geführten Walzbandes, wobei zum Zwecke der Schmierung ein Schmiermittel verwendet wird. guided rolling belt, wherein for the purpose of lubrication, a lubricant is used.
Stand der Technik State of the art
Es ist bekannt, dass beim Walzen von metallischem Walzgut, beispielsweise eines Metallbandes, zum Zwecke der Schmierung und der Kühlung flüssige oder gasförmige Behandlungsmedien verwendet werden. Diese Behandlungsmedien sind je nach Typ des Walzprozesses unterschiedlich: beim Warmwalzen, bei dem das Walzgut auf mehrere 100°C erhitzt wird, wird It is known that liquid or gaseous treatment media are used in the rolling of metallic rolling stock, for example a metal strip, for the purpose of lubrication and cooling. These treatment media vary depending on the type of rolling process: during hot rolling, where the rolling stock is heated to several 100 ° C
üblicherweise eine Wasser-Öl-Emulsion verwendet; beim commonly used a water-oil emulsion; at the
Kaltwalzen, bei dem die Temperatur des Walzgutes vor dem Walzvorgang üblicherweise unterhalb von 100° C liegt, erfolgt die Schmierung im Walzspalt meist durch ein Kaltwalzöl, wobei zusätzlich eine Kühlflüssigkeit verwendet wird. Cold rolling, in which the temperature of the rolling stock before the rolling process is usually below 100 ° C, the lubrication in the nip is usually done by a cold rolling oil, in addition, a cooling liquid is used.
Obwohl die zugeführte Walzflüssigkeit sowohl beim Warmwalzen als auch beim Kaltwalzen am Gerüstboden aufgefangen und nach einer Aufbereitung im Walzprozess prinzipiell wieder Although the supplied rolling fluid collected during both hot rolling and cold rolling on the scaffold floor and after a preparation in the rolling process in principle again
verwendet werden kann, ist man bestrebt, den Verbrauch an Schmier- und Kühlmittel möglichst gering zu halten. Darstellung der Erfindung can be used, one strives to keep the consumption of lubricant and coolant as low as possible. Presentation of the invention
Der Erfindung liegt die Aufgabe zu Grunde, ein Verfahren und eine Vorrichtung zum Aufbringen eines Schmiermittels beim Walzen eines metallischen Walzgutes anzugeben, bei dem der Schmiermittelverbrauch möglichst gering ist. The invention is based on the object to provide a method and apparatus for applying a lubricant when rolling a metallic rolling stock, in which the lubricant consumption is minimized.
Diese Aufgabe wird durch ein Verfahren gemäß den Merkmalen des Anspruchs 1 und durch eine Vorrichtung gemäß den This object is achieved by a method according to the features of claim 1 and by a device according to the
Merkmalen des Anspruchs 10 gelöst. Vorteilhafte Characteristics of claim 10 solved. advantageous
Ausgestaltungen der Erfindung sind in den jeweils abhängigen Ansprüchen definiert.  Embodiments of the invention are defined in the respective dependent claims.
Gemäß einem Grundgedanken der Erfindung wird als Medium zur Walzspaltschmierung nicht eine Walzflüssigkeit, sondern ein Spray, das heißt ein Gemisch aus Walzöl und einem Trägergas verwendet. Das Schmiermittel wird in einem Zerstäuber in fein verteilte Flüssigkeitstropfen zerteilt und mittels des According to a basic idea of the invention, the medium used for roller gap lubrication is not a rolling fluid but a spray, that is to say a mixture of rolling oil and a carrier gas. The lubricant is divided in an atomizer into finely distributed liquid drops and by means of the
Trägergases in den Walzspalt eingetragen. Dies Aufbringen beziehungsweise Einbringen in den Walzspalt kann entweder durch Sprühen auf die Oberfläche der Arbeitswalzen, und/oder auf die Oberfläche des in den Walzspalt einlaufenden Carrier gas entered into the nip. This application or introduction into the roll gap can either by spraying on the surface of the work rolls, and / or on the surface of the incoming into the roll gap
Walzgutes erfolgen. Durch den homogenen Auftrag des Rolled good done. Due to the homogeneous order of the
Schmiermittels als Spray, kann der Schmiermittel-Verbrauch vergleichsweise gering gehalten werden. Das in Tröpfchenform vorliegende Schmiermittel benetzt sehr gezielt nur ene Lubricant as a spray, the lubricant consumption can be kept relatively low. The droplet-form lubricant wets very selectively only ene
Bereiche der Oberfläche von Arbeitswalze und/oder Walzgut, welche für die Reibung beim Walzen maßgeblich sind. Areas of the surface of work roll and / or rolling, which are relevant for the friction during rolling.
Entscheidend ist dabei lediglich, dass eine zur Schmierung ausreichende Ölmenge in den Walzspalt gelangt; dies kann grundsätzlich durch ein Aufsprühen auf die Oberfläche der Arbeitswalzen oder auf die Oberfläche des einlaufenden The decisive factor is merely that a sufficient amount of oil for lubrication reaches the nip; This can basically be done by spraying on the surface of the work rolls or on the surface of the incoming
Walzbandes, oder auf beide Oberflächen erreicht werden. Rolled strip, or can be achieved on both surfaces.
Verglichen mit einer Emulsion, ist die Konzentration des Schmiermittels im Walzspalt deutlich höher. Damit erhöht sich die Effizienz des eingesetzten Schmierstoffs, denn in den Walzspalt gelangt gerade so viel Walzöl, wie je nach Art des Walzgutes zur Verringerung der Reibung im Walzspalt gefordert ist. In Breitenrichtung des Walzbandes gesehen ermöglicht die Erfindung einen gleichmäßigen Auftrag des Schmiermittels. Dadurch verringert sich die Gefahr, dass sich im Walzspalt in Breitenrichtung unterschiedliche Reibungsverhältnisse Compared with an emulsion, the concentration of the lubricant in the nip is significantly higher. This increases the efficiency of the lubricant used, because just as much rolling oil passes into the rolling gap as required depending on the type of rolling stock to reduce friction in the nip is. Seen in the width direction of the rolled strip, the invention enables a uniform application of the lubricant. This reduces the risk that in the nip in the width direction different friction conditions
einstellen. Dies ist insbesondere beim Kaltwalzen von to adjust. This is especially true during cold rolling of
besonderem Vorteil, da die gewünschte Enddicke des Metalls vergleichsweise gering ist und es leicht zu einem lokalen Brechen des Schmierfilms kommen kann. Außerdem wird beim Kaltwalzen in der Regel eine gute Oberflächenqualität des Metallbandes angestrebt, was eine ausreichende Schmierung im Walzspalt voraussetzt. Ein weiterer Vorteil ist darin zu sehen, dass der Schmierstoff in reiner Form, dass heißt nicht in Form einer Emulsion, verwendet wird, so dass ein Emulgator im Schmierstoff nicht erforderlich ist. Dadurch ergibt sich der Vorteil, dass das Öl verhältnismäßig leicht vom particular advantage, since the desired final thickness of the metal is comparatively low and it can easily lead to a local breakage of the lubricating film. In addition, in cold rolling usually a good surface quality of the metal strip is sought, which requires adequate lubrication in the nip. Another advantage is the fact that the lubricant is used in pure form, that is not in the form of an emulsion, so that an emulsifier in the lubricant is not required. This results in the advantage that the oil is relatively easy from
Kühlmittel, z.B. Wasser, getrennt und gegebenenfalls nach einer Aufbereitung wieder verwendet, das heißt in einem Coolant, e.g. Water, separated and optionally reused after treatment, that is in one
Umlauf geführt werden kann. Circulation can be performed.
Günstig ist, wenn das Auftragen des Schmiermittels durch einzelne Sprühdüsen erfolgt, welche in einer Reihe angeordnet sind und jeweils einen im Querschnitt gesehen im Wesentlichen flach ausgebildeten Sprühstrahl erzeugen. Die einzelnen It is favorable if the application of the lubricant takes place by means of individual spray nozzles, which are arranged in a row and in each case produce a spray jet which is essentially flat when viewed in cross-section. The single ones
Querschnitte können sich dabei im Randbereich überlagern. Auf diese Weise kann über die Breite des Walzbandes gesehen ein fächerförmiger Gesamt-Sprühstrahl erzeugt werden, mit dem das Schmiermittel homogen und gezielt in den Walzspalt Cross sections can overlap in the edge area. In this way, viewed over the width of the rolled strip, a fan-shaped overall spray can be generated, with which the lubricant homogeneous and targeted in the nip
eingebracht werden kann. Um eine über die Querschnittsfläche des Sprühstrahls gesehen möglichst homogene Verteilung des Schmiermittels zu erreichen, ist es günstig, wenn Sprühdüsen verwendet werden, die zumindest zwei Austrittsöffnungen aufweisen. Je nach Form dieser zumindest zwei can be introduced. In order to achieve a distribution of the lubricant which is as homogeneous as possible, viewed over the cross-sectional area of the spray jet, it is expedient to use spray nozzles which have at least two outlet openings. Depending on the shape of these at least two
Austrittsöffnungen lässt sich sehr gut eine gleichmäßige Flächenkonzentration des Schmiermittels beim Auftrag Outlets can be very well a uniform surface concentration of the lubricant during the order
erreichen . to reach .
Für einen gleichmäßigen Schmiermittel-Auftrag kann es günstig sein, wenn Düsen verwendet werden, die ein sphärisch gekrümmtes Mundstück aufweisen. Auf diesem gekrümmten For a uniform lubricant application, it may be beneficial to use nozzles that are spherical have curved mouthpiece. On this curved
Mundstück sind zwei bezüglich einer Symmetrieachse Mouthpiece are two with respect to an axis of symmetry
symmetrisch ausgebildete C-förmige Schlitze vorgesehen. symmetrically formed C-shaped slots provided.
Dadurch kann mit einer vergleichsweise geringen Anzahl von Düsen ein Spray gebildet werden, der das Schmiermittel gleichmäßig aufträgt. Je nach Tiefe und Winkellage dieser Schlitze kann der Querschnitt dieser Sprühstrahlen As a result, a spray can be formed with a comparatively small number of nozzles, which applies the lubricant evenly. Depending on the depth and angular position of these slots, the cross section of these sprays
beeinflusst werden. to be influenced.
Um das Schmiermittel möglichst effizient in den Walzspalt einzubringen kann es vorteilhaft sein, wenn der Spray aus einer Aneinanderreihung von einzelnen Sprühstrahlen gebildet wird, wobei jeder dieser Sprühstrahlen in seiner In order to introduce the lubricant as efficiently as possible into the roll gap, it may be advantageous if the spray is formed from a juxtaposition of individual spray jets, each of these spray jets in its
Breitenrichtung gesehen etwa parallel zur Achse der beiden Arbeitswalzen gerichtet wird. Seen width direction is approximately parallel to the axis of the two work rolls.
Als Trägermedium für die Schmierstofftröpfchen kann in einfacher Ausgestaltung des Verfahrens Luft verwendet werden. As a carrier medium for the lubricant droplets can be used in a simple embodiment of the process air.
Hinsichtlich des Energieeinsatzes kann es von besonderem Vorteil sein, wenn Walzöl verwendet wird, welches nicht erhitzt, sondern im Wesentlichen mit einer Temperatur With regard to the use of energy, it may be of particular advantage when rolling oil is used which does not heat but substantially at a temperature
verwendet wird, welche der Umgebungstemperatur entspricht is used, which corresponds to the ambient temperature
Kurzbeschreibung der Zeichnung Brief description of the drawing
Zur weiteren Erläuterung der Erfindung wird im nachfolgenden Teil der Beschreibung auf die Zeichnungen Bezug genommen, aus denen weitere vorteilhafte Ausgestaltungen, Einzelheiten und Weiterbildungen der Erfindung anhand eines nicht To further explain the invention, reference is made in the following part of the description to the drawings, from which further advantageous embodiments, details and further developments of the invention with reference to a non
einschränkenden Ausführungsbeispiels zu entnehmen sind. restrictive embodiment can be seen.
Es zeigen: Show it:
Figur 1 einen schematischen Vertikalschnitt durch ein Figure 1 is a schematic vertical section through a
Walzgerüst, der Anordnung der erfindungsgemäße Vorrichtung zur Einbringung eines Schmiermittels in den Walzspalt; Roll stand, the arrangement of the invention Apparatus for introducing a lubricant into the roll gap;
Figur 2 einen Sprühbalken mit aneinander gereihten Figure 2 shows a spray bar with lined up
Sprühdüsen in einer räumlichen Darstellung, wobei der aus einzelnen Sprühstrahlen zusammengesetzte Gesamt-Sprühstrahl skizziert ist;  Spray nozzles in a spatial representation, wherein the composite of individual spray jets total spray is sketched;
Figur 3 eine Schnittdarstellung einer Figure 3 is a sectional view of a
Zerstäubungseinrichtung samt Sprühdüse;  Atomizing device including spray nozzle;
Figur 4 eine Aus führungs form des Mundstücks einer Sprühdüse in einer räumlichen und in einer geschnittenen Darstellung; Figure 4 shows an embodiment of the mouthpiece of a spray nozzle in a spatial and in a sectional view;
Figur 5 eine Detaildarstellung der Walzspaltschmierung in einer vergleichenden Darstellung zwischen einer Schmierung mit Emulsion und einer Schmierung mit Walzöl . Figure 5 is a detailed view of the rolling gap lubrication in a comparative representation between lubrication with emulsion and lubrication with rolling oil.
Ausführung der Erfindung Embodiment of the invention
Die Figur 1 zeigt in einer stark vereinfachten Darstellung einen vertikalen Schnitt durch ein Walzgerüst. Das Walzgerüst besteht im Wesentlichen aus den beiden Arbeitswalzen 2' und 2'', sowie den jeweiligen Stützwalzen 3' und 3''. Im FIG. 1 shows in a highly simplified representation a vertical section through a rolling stand. The rolling stand consists essentially of the two work rolls 2 'and 2' ', and the respective support rollers 3' and 3 ''. in the
Walzspalt 8 wird zwischen den beiden Arbeitswalzen 2' und 2'' ein Walzband 28 in der durch den Pfeil angegebenen Richtung von links nach rechts hindurchgeführt. Einlaufseitig ist jeweils an der Oberseite und der Unterseite des Walzbandes 28 die erfindungsgemäße Vorrichtung 1 skizziert, welche ein verdüstes Walzöl in Richtung des Walzspaltes 8 sprüht. Die Zerstäubung des Walzöls erfolgt jeweils in einer Rolling gap 8 is between the two work rolls 2 'and 2' 'a rolled strip 28 in the direction indicated by the arrow from left to right passed. On the inlet side, the device 1 according to the invention is sketched in each case on the upper side and the underside of the rolled strip 28, which sprays an atomised rolling oil in the direction of the roll gap 8. The atomization of the rolling oil takes place in one
Zerstäubungseinrichtung 4, welcher über Leitungen 6 bzw. 7 Walzöl bzw. Luft zugeführt wird. Wie unten stehend noch näher erläutert, wird in der Zerstäubungseinrichtung 4 ein Gemisch aus Luft und Atomizing device 4, which is supplied via lines 6 and 7 rolling oil or air. As will be explained in more detail below, in the atomizing device 4 is a mixture of air and
Schmiermittelteilchen gebildet, welches mittels einer Formed lubricant particles, which by means of a
Anordnung von Sprühdüsen 5 als Spray aufgetragen wird. Dieser Spray schlägt sich auf der Oberfläche 21 der Arbeitswalzen 2' und 2'' und/oder an der Oberfläche 23 des Walzbandes 28 nieder, wodurch die angestrebte Herabsetzung der Arrangement of spray nozzles 5 is applied as a spray. This spray is deposited on the surface 21 of the work rolls 2 'and 2' 'and / or on the surface 23 of the rolled strip 28, whereby the desired reduction of the
Reibungsverhältnisse im Walzspalt 8 bewirkt wird. In der Wanne 17 wird Walzöl zusammen mit dem Kühlmittel aufgefangen und mittels einer Förder- und Wiederaufbereitungsanlage recycelt . Friction conditions in the nip 8 is effected. In the tub 17 rolling oil is collected together with the coolant and recycled by means of a conveying and reprocessing plant.
Die Figur 2 zeigt eine Anordnung von Sprühdüsen 5 auf einem Sprühbalken 13. Jeder Sprühdüse 5 ist jeweils über eine erste Leitung 6 Walzöl und über eine zweite Leitung 7 Luft 2 shows an arrangement of spray nozzles 5 on a spray bar 13. Each spray nozzle 5 is in each case via a first line 6 rolling oil and via a second line 7 air
zugeführt. Jede Sprühdüse 5 erzeugt einen Sprühstrahl 9, der im Querschnitt 15 gesehen flach ausgebildet ist. Die fed. Each spray nozzle 5 generates a spray jet 9, which is formed flat in cross section 15 seen. The
Aneinanderreihung dieser einzelnen flachen Sprühstrahlen 9 bildet einen hinsichtlich der Ölkonzentration homogenen Stringing these individual flat spray jets 9 forms a homogeneous in terms of oil concentration
Gesamt-Sprühstrahl 19. Total spray 19.
Die Figur 3 zeigt eine SchnittZeichnung der FIG. 3 shows a sectional drawing of FIG
Zerstäubungseinrichtung 4. Wie bereits gesagt wird dieser Zerstäubungseinrichtung 4 jeweils über eine Anschlussleitung 6 Walzöl und über eine andere Anschlussleitung 7 Luft Atomizing device 4. As already stated, this atomizing device 4 in each case via a connecting line 6 rolling oil and via another connecting line 7 air
zugeführt. Die Erzeugung des Öl-Luft-Gemischs erfolgt in an sich bekannter Weise: In einer Verwirbelungskammer 31 treffen die beiden Medien Luft 27 und Öl 26 aufeinander. Die mit hoher Geschwindigkeit an einer Blende des Walzöl-Zulaufs 6 vorbei strömende Luft 27 reißt dabei Öl-Partikel 26 mit, so dass sich in der Verwirbelungskammer 31 ein Gemisch aus Luft und fein verteilten Öl-Flüssigkeitströpfchen bildet. Größe und Ausbildung dieser Flüssigkeitströpfchen können dabei jeweils durch die Menge der zugeführten Medien und durchfed. The generation of the oil-air mixture takes place in a manner known per se: In a swirling chamber 31, the two media air 27 and oil 26 meet. The air 27, which flows at high speed past an orifice of the rolling oil feed 6, entrains oil particles 26, so that a mixture of air and finely distributed oil-liquid droplets forms in the swirling chamber 31. Size and training of these liquid droplets can each case by the amount of media supplied and by
Blenden in einem breiten Bereich eingestellt werden. Diese Blenden im Zulauf von Luft und Öl sind in der Apertures can be adjusted in a wide range. These orifices in the inlet of air and oil are in the
Zerstäubungseinrichtung 4 auswechselbar. Dadurch ist es möglich, je nach Anforderung ein geeignetes Gemisch aus Luft und Flüssigkeitsteilchen herzustellen. Dieses Gemisch wird über ein kurzes Verbindungsstück einer Sprühdüse 5 zugeführt. Die Sprühdüse 5 ist im Bereich einer Mündung 18 sphärisch gekrümmt. Im Bereich der sphärischen Krümmung 12 sind zwei Austrittsöffnungen 10 ausgebildet. Jede dieser Atomizer 4 interchangeable. That's it possible to produce a suitable mixture of air and liquid particles as required. This mixture is fed via a short connector of a spray nozzle 5. The spray nozzle 5 is spherically curved in the region of an orifice 18. In the area of the spherical curvature 12, two outlet openings 10 are formed. Each of these
Austrittsöffnungen 10 wird durch einen Schlitz im Bereich der Mündung 18 gebildet. Die Herstellung dieses Schlitzes in der sphärischen Krümmung 10 kann einfach durch einen Einschnitt mit einem Sägeblatt erfolgen.  Outlet openings 10 is formed by a slot in the region of the mouth 18. The preparation of this slot in the spherical curvature 10 can be easily done by a cut with a saw blade.
Die Figur 4 zeigt zwei Ansichten des Mundstücks 18: in der oberen Darstellung ist das Mundstück 18 in einer FIG. 4 shows two views of the mouthpiece 18: in the upper illustration, the mouthpiece 18 is in one
geschnittenen Ansicht, in der unteren Darstellung in einer räumlichen Ansicht zu sehen. Das Mundstück 18 ist nach außen konvex gekrümmt. In der vorliegenden Aus führungs form ist die Krümmung 12 ein Kreisbogen. Eine korrespondierende Krümmung ist auch an der inneren Wand des Mundstücks 18 ausgebildet. Am Zenit der Krümmung 12 sind zwei durch Einschnitte cut view, seen in the bottom view in a spatial view. The mouthpiece 18 is convexly curved outwards. In the present embodiment, the curvature 12 is a circular arc. A corresponding curvature is also formed on the inner wall of the mouthpiece 18. At the zenith of curvature 12 are two through cuts
gebildete Austrittsöffnungen 10 für das Gemisch zu sehen, die - in einer der Ausströmrichtung entgegengesetzten Richtung gesehen - jeweils die Form eines "C " aufweisen. Die formed outlet openings 10 for the mixture, which - seen in a direction opposite to the outflow direction - each having the shape of a "C". The
Anordnung dieser beiden C-förmigen Austrittsöffnungen 10 ist dabei so gewählt, dass die Schenkel 25 der beiden "C" von einer Symmetrieachse 11 weg weisen. Anders ausgedrückt, die beiden Einschnitte "C" liegen Rücken-an-Rücken . Die Arrangement of these two C-shaped outlet openings 10 is chosen so that the legs 25 of the two "C" from an axis of symmetry 11 point away. In other words, the two incisions "C" are back-to-back. The
Herstellung dieser Austrittsöffnungen 10 erfolgt durch Production of these outlet openings 10 is carried out by
Einschnitte. Die Ebenen der Einschnitte 10 stehen in einem Winkel 30 zueinander. Die Schlitzbreite 14 dieser Einschnitte liegt vorteilhaft etwa zwischen 0,6 bis 0,7 mm. Durch diese Ausbildung des Mündungsbereichs der Sprühdüse 5 wird Incisions. The planes of the incisions 10 are at an angle 30 to each other. The slot width 14 of these cuts is advantageously between about 0.6 to 0.7 mm. Through this design of the mouth region of the spray nozzle 5 is
erreicht, dass ein Sprühstrahl 9 gebildet wird, der eine flache Querschnittsfläche und eine weitgehend homogene achieved that a spray 9 is formed, which has a flat cross-sectional area and a substantially homogeneous
Verteilung der Schmiermittelkonzentration aufweist. Distribution of the lubricant concentration has.
Die Figur 5 veranschaulicht in einer stark vereinfachten Darstellung die Schmierung im Walzspalt, wobei die obere Darstellung die Schmierung mit Emulsion gemäß Stand der Technik, die untere Darstellung, die erfindungsgemäße Figure 5 illustrates in a highly simplified representation of the lubrication in the nip, the upper diagram shows the lubrication with emulsion according to the state of Technique, the lower illustration, the invention
Aufbringung des Walzöls mittels eines Sprays darstellt. Represent application of the rolling oil by means of a spray.
Obwohl es auch bei der Emulsionsschmierung zu einer Anlage von Schmierstoff 26 an der Oberfläche 21 der Arbeitswalze 2', 2'' und an der Oberfläche 23 des Walzbandes 8 kommt, ist aufgrund der Emulsion 20 die Schmiermittelkonzentration im Walzspalt 8 geringer als bei der Einbringung des Although it comes in the emulsion lubrication to a system of lubricant 26 on the surface 21 of the work roll 2 ', 2' 'and on the surface 23 of the rolled strip 8, due to the emulsion 20, the lubricant concentration in the nip 8 is lower than in the introduction of the
Schmiermittels in Form eines Sprays, was in der unteren Lubricant in the form of a spray, resulting in the bottom
Darstellung der Figur 5 veranschaulicht ist. Representation of Figure 5 is illustrated.
Dank der Erfindung bildet sich im Walzspalt 8 eine verglichen mit Emulsions-Schmierung höhere Konzentration von Thanks to the invention forms in the nip 8 a compared with emulsion lubrication higher concentration of
Schmiermittel aus. Abhängig von der Walzgeschwindigkeit, der Walzenrauheit und anderen Prozessgrößen kann ein Lubricant off. Depending on the rolling speed, the roller roughness and other process variables may be
vergleichsweise niedriger Ölverbrauch von 50 ml pro Minute bis 200 ml pro Minute pro Walzgerüst erreicht werden. Bei der Herstellung von Walzband ist dies ein erheblicher comparatively low oil consumption of 50 ml per minute to 200 ml per minute per rolling mill can be achieved. In the production of rolled strip, this is a considerable
Kostenvorteil. Ein weiterer Vorteil ergibt sich durch die sehr stark verringerte Reibung im Walzspalt, wodurch die Walzkräfte und Walzmomente für den Walzprozess verringert werden können. Insbesondere beim Kaltwalzen kann eine sehr gute Oberflächenqualität des Walzbandes erzielt werden. Cost advantage. Another advantage results from the greatly reduced friction in the nip, whereby the rolling forces and rolling moments for the rolling process can be reduced. Especially during cold rolling, a very good surface quality of the rolled strip can be achieved.
Zusammenstellung der verwendeten Bezugszeichen Compilation of the reference numbers used
1 Vorrichtung zum Aufbringen eines Schmiermittels 2', 2'' Arbeitswalze 1 Device for applying a lubricant 2 ', 2' 'work roll
3 ' , 3 ' ' Stützwalze 3 ', 3' 'support roller
4 Zerstäubungseinrichtung  4 atomizing device
5 Sprühdüse  5 spray nozzle
6 Leitung (Schmiermittel) 6 line (lubricant)
7 Leitung (Trägergas)  7 line (carrier gas)
8 Walzspalt  8 nip
9 Sprühstrahl  9 spray
10 Austrittsöffnung  10 outlet opening
11 Symmetrieachse 11 symmetry axis
12 Krümmung  12 curvature
13 Sprühbalken  13 spray bars
14 Schlitzbreite  14 slot width
15 Querschnitt  15 cross section
16 Förder- und Aufbereitungsanlage 16 conveying and processing plant
17 Wanne  17 tub
18 Mundstück  18 mouthpiece
19 Gesamt-Sprühstrahl  19 total spray
20 Emulsion  20 emulsion
21 Oberfläche der Arbeitswalzen 21 Surface of the work rolls
22 Kühlmittel  22 Coolant
23 Oberfläche des Walzbandes  23 Surface of the rolled strip
24', 24'' Achse der Arbeitswalze 2', 2'' 24 ', 24' 'axis of the work roll 2', 2 ''
25 Schenkel 25 thighs
26 Schmiermittel, Walzöl 26 lubricants, rolling oil
27 Trägergas, Luft  27 carrier gas, air
28 Walzband  28 rolled strip
29 Dosierpumpe  29 dosing pump
30 Winkel  30 angles
31 Verwirbelungskammer 31 swirl chamber

Claims

Patentansprüche claims
1. Verfahren zum Aufbringen eines Schmiermittels beim 1. A method for applying a lubricant in
Walzen von metallischem Walzgut, insbesondere eines in einem Walzspalt (8) zwischen zwei Arbeitswalzen (2', Rolling of metallic rolling stock, in particular one in a roll gap (8) between two work rolls (2 ',
2'') hindurch geführten Walzbandes (28), gekennzeichnet durch die Verfahrensschritte: 2 '') guided through rolled strip (28), characterized by the method steps:
Erzeugen eines Gemischs aus Schmiermittel und einem Trägergas in einer Zerstäubungseinrichtung (4);  Generating a mixture of lubricant and a carrier gas in a sputtering device (4);
Zuführen des Gemischs zu einzelne Sprühdüsen (5) einer Anordnung von Sprühdüsen (5), um einen in Richtung der Breite des Walzbandes zusammenhängenden Gesamt- Sprühstrahl (19) zu erzeugen, wobei der Gesamt- Sprühstrahl (19) aus im Querschnitt im wesentlichen flache ausgebildeten Sprühstrahlen (9) zusammengesetzt wird;  Feeding the mixture to individual spray nozzles (5) of an array of spray nozzles (5) to produce a total spray jet (19) contiguous with the width of the rolled strip, the total spray jet (19) formed of substantially flat cross-section Spray jets (9) is assembled;
Auftragen des Gesamt-Sprühstrahls (19) auf die Oberfläche (21) zumindest einer der Arbeitswalzen und/oder auf die Oberfläche (23) des Walzbandes (28) .  Applying the total spray jet (19) on the surface (21) of at least one of the work rolls and / or on the surface (23) of the rolled strip (28).
2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass jeder Sprühstrahl (9) mittels einer Sprühdüse (5) gebildet wird, welche ein Mundstück (18) mit zumindest zwei Austrittsöffnungen (10) aufweist. 2. The method according to claim 1, characterized in that each spray jet (9) by means of a spray nozzle (5) is formed, which has a mouthpiece (18) with at least two outlet openings (10).
3. Verfahren nach Anspruch 2, dadurch gekennzeichnet, dass ein sphärisch gekrümmtes Mundstück (18) mit zumindest zwei bezüglich einer Symmetrieachse (11) symmetrisch angeordneten Austrittsöffnungen (10) verwendet wird. 3. The method according to claim 2, characterized in that a spherically curved mouthpiece (18) with at least two with respect to an axis of symmetry (11) symmetrically arranged outlet openings (10) is used.
4. Verfahren nach Anspruch 3, dadurch gekennzeichnet, dass beim Auftragen des Gesamt-Sprühstrahls (19) eine 4. The method according to claim 3, characterized in that during application of the total spray jet (19) a
Anordnung von Sprühdüsen (5) verwendet wird, welche in einer Reihe auf einem Sprühbalken (13) angeordnet sind, und wobei jede der Sprühdüsen (9) einen im Querschnitt gesehen im wesentlichen flache ausgebildeten Sprühstrahl (9) erzeugt und wobei jeder der Sprühstrahlen (9) in seiner Breitenrichtung gesehen etwa parallel zur Achse (24', 24'') einer Arbeitswalze (2',2'') gerichtet wird. Arrangement of spray nozzles (5) are arranged, which are arranged in a row on a spray bar (13), and wherein each of the spray nozzles (9) produces a cross-sectionally substantially flat formed spray jet (9) and wherein each of the spray jets (9 ) in Seen in its width direction approximately parallel to the axis (24 ', 24'') of a work roll (2', 2 '') is directed.
5. Verfahren nach einem der Ansprüche 1 bis 4, dadurch 5. The method according to any one of claims 1 to 4, characterized
gekennzeichnet, dass Luft als Trägergas verwendet wird.  characterized in that air is used as a carrier gas.
Verfahren nach einem der Ansprüche 1 bis 4, dadur gekennzeichnet, dass als Schmiermittel ein Walzöl verwendet wird. Method according to one of claims 1 to 4, dadur characterized in that a rolling oil is used as the lubricant.
7. Verfahren nach Anspruch 5 und 6, dadurch gekennzeichnet, dass beim Erzeugen des Gemischs der 7. The method according to claim 5 and 6, characterized in that when generating the mixture of
Zerstäubungseinrichtung Walzöl und Luft mit einer  Atomizing device rolling oil and air with a
Temperatur zugeführt werden, welche der  Temperature to be supplied, which is the
Umgebungstemperatur entspricht.  Ambient temperature corresponds.
8. Verfahren nach Anspruch 7, dadurch gekennzeichnet, dass das Walzöl der Zerstäubungseinrichtung mittels einer Dossierpumpe (29) zugeführt wird. 8. The method according to claim 7, characterized in that the rolling oil of the atomizing device by means of a Dossierpumpe (29) is supplied.
9. Verfahren nach Anspruch 8, dadurch gekennzeichnet, dass das Walzöl in einer Menge von kleiner als 200 ml pro Minute zugeführt wird. 9. The method according to claim 8, characterized in that the rolling oil is supplied in an amount of less than 200 ml per minute.
10. Vorrichtung zum Aufbringen eines Schmiermittels in den Walzspalt eines Walzgerüstes, wobei durch den 10. A device for applying a lubricant in the nip of a roll stand, wherein by the
Walzspalt ein metallisches Walzband (28) hindurchgeführt wird, umfassend:  Rolling a metallic rolled strip (28) is passed, comprising:
eine Zerstäubungseinrichtung (4), welcher das Schmiermittel und ein Trägergas zugeführt ist, um ein Gemisch aus Schmiermittel und Trägergas zu erzeugen;  a sputtering device (4) to which the lubricant and a carrier gas are supplied to produce a mixture of lubricant and carrier gas;
eine Anordnung von Sprühdüsen (5), die mit der Zerstäubungseinrichtung (4) verbunden sind und denen jeweils das Gemisch über Verbindungsleitungen an arrangement of spray nozzles (5), which are connected to the atomizing device (4) and each of which the mixture via connecting lines
(6, 7) zugeführt ist, wobei die Anordnung so gewählt ist, dass jede Sprühdüse (5) einen im Querschnitt gesehen im wesentlichen flach ausgebildeten Sprühstrahl (9) erzeugt, welcher auf die Oberfläche einer Arbeitswalze (2', 2'') und/oder auf die Oberfläche (23) des Walzbandes (28) gerichtet ist. (6, 7), the arrangement being such that each spray nozzle (5) has a substantially flat cross section formed spray jet (9) which is directed to the surface of a work roll (2 ', 2'') and / or on the surface (23) of the rolled strip (28).
11. Vorrichtung nach Anspruch 10, dadurch 11. The device according to claim 10, characterized
gekennzeichnet, dass jede Sprühdüse (5) eine Mundstück (18) mit zumindest zwei Austrittsöffnungen (10)  in that each spray nozzle (5) has a mouthpiece (18) with at least two outlet openings (10).
aufweist, die dazu eingerichtet sind, einen im  which are adapted to have an im
Querschnitt im Wesentlichen flach ausgebildeten  Cross section substantially flat
Sprühstrahl (9) zu erzeugen.  To produce spray jet (9).
12. Vorrichtung nach Anspruch 11, dadurch 12. The device according to claim 11, characterized
gekennzeichnet, dass das Mundstück im Bereich der  characterized in that the mouthpiece in the area of
Ausbildung der zumindest zwei Austrittsöffnungen  Forming the at least two outlet openings
sphärisch gekrümmt ist.  is spherically curved.
13. Vorrichtung nach Anspruch 12, dadurch 13. The apparatus according to claim 12, characterized
gekennzeichnet, dass im Bereich der sphärisch in  characterized in that in the sphere of spherical in
Krümmung (12) des Mundstücks (18) zwei  Curvature (12) of the mouthpiece (18) two
Austrittsöffnungen (10) ausgebildet sind, welche  Outlet openings (10) are formed, which
bezüglich einer Symmetrieachse (11) symmetrisch sind.  with respect to an axis of symmetry (11) are symmetrical.
14. Vorrichtung nach Anspruch 13, dadurch 14. The apparatus according to claim 13, characterized
gekennzeichnet, dass die beiden Austrittsöffnungen (10 C-förmig mit einer von der Symmetrieachse (11)  characterized in that the two outlet openings (10 C-shaped with one of the axis of symmetry (11)
wegweisenden Schenkeln (25) ausgebildet sind.  pioneering legs (25) are formed.
15. Vorrichtung nach einem der Ansprüche 11 bis 13, 15. Device according to one of claims 11 to 13,
dadurch gekennzeichnet, dass die Austrittsöffnungen (10) jeweils eine Breite (14) aufweisen, wobei in diese  characterized in that the outlet openings (10) each have a width (14), wherein in this
Breite (14) kleiner als ein Millimeter, bevorzugt 0,6 bis 0,7 mm ist .  Width (14) is less than one millimeter, preferably 0.6 to 0.7 mm.
16. Vorrichtung nach einem der Ansprüche 10 bis 15, 16. Device according to one of claims 10 to 15,
dadurch gekennzeichnet, dass die Anordnung der  characterized in that the arrangement of
Sprühdüsen (5) so gewählt ist, dass durch die einzelnen Sprühstrahlen (9) der Sprühdüsen (5) ein Spray nozzles (5) is chosen so that by the individual Spray jets (9) of the spray nozzles (5)
zusammenhängender Gesamt-Sprühstrahl (19) gebildet wird, welcher auf die Oberfläche einer Arbeitswalze (2', 2'') gerichtet ist und eine Breitseite aufweist, die etwa parallel zur Achse (24', 24'') der Arbeitswalze (2', 2'') ausgerichtet ist.  continuous overall spray (19) is directed, which is directed onto the surface of a work roll (2 ', 2' ') and has a broad side which is approximately parallel to the axis (24', 24 '') of the work roll (2 ', 2 '') is aligned.
17. Vorrichtung nach einem der Ansprüche 10 bis 15, 17. Device according to one of claims 10 to 15,
dadurch gekennzeichnet, dass das Schmiermittel ein  characterized in that the lubricant is a
Walzöl und das Trägergas Luft ist.  Rolling oil and the carrier gas is air.
18. Vorrichtung nach Anspruch 17, dadurch 18. The apparatus according to claim 17, characterized
gekennzeichnet, dass das Walzöl mittels einer  characterized in that the rolling oil by means of a
Dossierpumpe (29) der Zerstäubungseinrichtung (4) zugeführt ist.  Dossierpumpe (29) of the atomizing device (4) is supplied.
19. Vorrichtung nach Anspruch 18, dadurch 19. The apparatus according to claim 18, characterized
gekennzeichnet, dass die Dossierpumpe (29) der  in that the dossier pump (29) of the
Zerstäubungseinrichtung (4) das Walzöl in einem  Atomizing device (4) the rolling oil in one
Volumenstrom von kleiner als 200 ml pro Minute zuführt.  Volume flow of less than 200 ml per minute feeds.
20. Vorrichtung nach Anspruch 18, dadurch 20. The apparatus according to claim 18, characterized
gekennzeichnet, dass das Walzöl eine Temperatur  characterized in that the rolling oil has a temperature
aufweist, welche in etwa der Umgebungstemperatur des Walzgerüstes entspricht.  which corresponds approximately to the ambient temperature of the roll stand.
21. Vorrichtung nach Anspruch 13, dadurch 21. The apparatus according to claim 13, characterized
gekennzeichnet, dass die beiden Austrittsöffnungen (10) durch jeweils in einer Ebene liegende Einschnitte im Mundstück (18) gebildet sind, wobei die Ebenen  characterized in that the two outlet openings (10) are formed by in each case lying in a plane incisions in the mouthpiece (18), wherein the planes
zueinander einen Winkel (30) einschließen.  to each other include an angle (30).
EP11749856.8A 2010-12-16 2011-09-02 Method and apparatus for applying a lubricant while rolling metallic rolled stock Active EP2651577B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP11749856.8A EP2651577B1 (en) 2010-12-16 2011-09-02 Method and apparatus for applying a lubricant while rolling metallic rolled stock

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP10195330A EP2465619A1 (en) 2010-12-16 2010-12-16 Method and device for applying a lubricant when milling a metallic milling product
PCT/EP2011/065165 WO2012079785A1 (en) 2010-12-16 2011-09-02 Method and apparatus for applying a lubricant while rolling metallic rolled stock
EP11749856.8A EP2651577B1 (en) 2010-12-16 2011-09-02 Method and apparatus for applying a lubricant while rolling metallic rolled stock

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EP2651577A1 true EP2651577A1 (en) 2013-10-23
EP2651577B1 EP2651577B1 (en) 2015-01-28

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EP11749856.8A Active EP2651577B1 (en) 2010-12-16 2011-09-02 Method and apparatus for applying a lubricant while rolling metallic rolled stock

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EP (2) EP2465619A1 (en)
KR (1) KR101807527B1 (en)
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WO2012079785A1 (en) 2012-06-21
KR20130124354A (en) 2013-11-13
US20130298627A1 (en) 2013-11-14
US9314827B2 (en) 2016-04-19
CN103249504B (en) 2015-05-06
KR101807527B1 (en) 2017-12-11
EP2651577B1 (en) 2015-01-28
EP2465619A1 (en) 2012-06-20
CN103249504A (en) 2013-08-14
RU2013132745A (en) 2015-01-27
RU2570257C2 (en) 2015-12-10

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