EP0385097A2 - Method for producing a protective microlayer - Google Patents

Method for producing a protective microlayer Download PDF

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Publication number
EP0385097A2
EP0385097A2 EP90101343A EP90101343A EP0385097A2 EP 0385097 A2 EP0385097 A2 EP 0385097A2 EP 90101343 A EP90101343 A EP 90101343A EP 90101343 A EP90101343 A EP 90101343A EP 0385097 A2 EP0385097 A2 EP 0385097A2
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EP
European Patent Office
Prior art keywords
spray
rollers
coated
zinc
hot
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EP90101343A
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German (de)
French (fr)
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EP0385097A3 (en
Inventor
Renè Dipl.-Ing. Theillout
Rudolf Dipl.-Ing Zwingmann
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Hoesch Stahl AG
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Hoesch Stahl AG
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Publication of EP0385097A2 publication Critical patent/EP0385097A2/en
Publication of EP0385097A3 publication Critical patent/EP0385097A3/en
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    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
    • B21B2001/228—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length skin pass rolling or temper rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B2015/0071—Levelling the rolled product

Definitions

  • the cold-rolled flat material used is heat-treated in a continuous furnace by annealing. Then it goes through a bath with a molten alloy. After the coating has solidified, the strips must be re-rolled. This is done in so-called skin pass rollers.
  • wet dressing is known in rolling mill technology, where a sliding film is built up between the work rolls and the backup rolls with water or water-like additives. At the same time, the rollers should also be kept clean. With the water as a lubricant, the deformation work also increases with constant pressure. It gets bigger due to the build-up on the rollers.
  • Cleaning devices with mesh emery which remove the abrasion which is transferred from the galvanized belts to the rollers from the rollers.
  • the cleaning device moves along the roller and presses a head with emery on the roller. Through the rota tion movement of the roller, the surface is cleaned with it. The resulting zinc dust is removed via an extraction system. Nevertheless, it happens again and again, especially with matted rollers, that so-called "zinc stoves" build up at certain points. This pad is often not removed directly from the cleaning device. However, this quickly builds up additional zinc at this point and the cleaning device can no longer remove the zinc, it sticks to the roller.
  • the invention is therefore based on the object of producing a high-quality, hot-dip coated strip material in a continuously operating strip galvanizing system, the failure of the skin pass rollers being reduced and thus increasing their operating time, with a constant degree of deformation.
  • a micro protective film which prevents the zinc from adhering to the skin pass rollers, maintains surface protection on the rollers and thus extends the operating time of the rollers, while at the same time increasing the surface quality of the hot-dip coated strip material, without residues on the strip surface that would interfere with subsequent coating or other processing.
  • spray nozzles (3) or spray bars that are equipped with several identical spray nozzles (3) at a defined distance and angle from the skin pass rollers. The distance depends on the spray angle used for the spray nozzles as well as the pressure and the spray medium.
  • a micro-protective film must be left on the skin pass rollers to prevent the zinc or aluminum-zinc alloys from sticking.
  • the spray agent must volatilize quickly and without residue from the hot-dip coated strip material, because the strip material must be available for the surface coating without additional treatment.
  • the micro protection film on the skin pass rollers must not produce a smear effect. It only prevents the zinc from coming into direct contact with the roller and thus prevents the build-up of Zinc particles or alloy components of the surface refinement too.
  • the micro protection film acts as a kind of separating layer.
  • the spray is atomized through a two-substance nozzle, which is adjusted to the viscosity of the spray.
  • Compressed air of high purity is used as the driving medium.
  • the compressed air entrains the spray, the pressure and the amount of compressed air determining the amount of spray. It is astonishing how little spraying agent per nozzle and hour is necessary to maintain an effective micro-protective film on the skin pass rollers (2).
  • the spray medium pressure set is below 5 ml / h and nozzle. In addition to the safe surface protection against deposits, this small amount of spraying agent also prevents a higher deformation because the application on the skin pass roller is microscopic.
  • the quality of the surface-coated sheet is also enormously improved by the above-described process. It is no longer necessary to re-address the tapes. This also applies to the surface-coated sheets that do not have a pure zinc coating.
  • duo rollers represent a particular problem. These rollers cannot be washed because otherwise the detergent would run onto the belt and cause contamination.
  • the subject of the application is particularly suitable for this type of roller.
  • the degree of deformation can also be increased in the case of a skin pass mill with a sufficiently good surface, i. H. the degree of deformation is increased with larger quantities of spray.
  • the spray angle can be changed using the swiveling nozzle holder. The spray can be sprayed directly into the roller mill, which results in an increase in the degree of deformation.

Abstract

The invention relates to a method for producing a protective microlayer on rotating rolls, the said layer preventing adhesion of alloy components of a surface-refined metal sheet when passing through the rolls. <IMAGE>

Description

Schmelztauchveredelte Bleche werden heute auf kontinuierlich arbeitenden Bandverzinkungsanlagen hergestellt.Today hot-dip coated sheets are produced on continuously working strip galvanizing plants.

Dabei wird das eingesetzte kaltgewalzte Flachzeug in einem Durchlaufofen durch Glühen wärmebehandelt. Anschließend durchläuft es ein Bad mit einer schmelzflüssigen Legierung. Nach der Erstarrung des Überzuges müssen die Bänder nachge­walzt werden. Dieses geschieht in sogenannten Dressierwal­zen.The cold-rolled flat material used is heat-treated in a continuous furnace by annealing. Then it goes through a bath with a molten alloy. After the coating has solidified, the strips must be re-rolled. This is done in so-called skin pass rollers.

In der Walzwerktechnik ist das sogenannte Naßdressieren be­kannt, wo mit Wasser oder wasserähnlichen Zusätzen ein Gleit­film zwischen den Arbeitswalzen und den Stützwalzen aufgebaut wird. Gleichzeitig sollen damit auch die Walzen sauber gehal­ten werden. Mit dem Wasser als Gleitmittel steigt aber auch bei gleichbleibendem Druck die Verformungsarbeit. Sie wird durch den Aufbau auf den Walzen größer.So-called wet dressing is known in rolling mill technology, where a sliding film is built up between the work rolls and the backup rolls with water or water-like additives. At the same time, the rollers should also be kept clean. With the water as a lubricant, the deformation work also increases with constant pressure. It gets bigger due to the build-up on the rollers.

Dieses Verfahren ist aber gerade bei schmelztauchveredelten Blechen nicht anwendbar. Es werden sehr hohe Drücke benötigt, um eine gut verdichtete, gleichmäßige Oberfläche für die an­schließende Beschichtung zu erreichen, im anderen Falle sind die Bänder dann nicht ausreichend beschichtungsfähig.However, this method cannot be used with hot-dip coated sheets. Very high pressures are required to achieve a well-compacted, uniform surface for the subsequent coating, otherwise the tapes cannot be coated sufficiently.

Es sind Putzvorrichtungen mit Gitterschmirgel bekannt, die den Abrieb, der von den verzinkten Bändern auf die Walzen übertragen wird, von den Walzen entfernen. Dabei fährt die Putzvorrichtung an der Walze entlang und drückt einen Kopf, der mit Schmirgel besetzt ist, an die Walze. Durch die Rota­ tionsbewegung der Walze wird deren Oberfläche damit gerei­nigt. Der dabei anfallende Zinkstaub wird über eine Absaugan­lage entfernt. Trotzdem kommt es immer wieder vor, insbeson­dere bei mattierten Walzen, daß sich an bestimmten Stellen sogenannte "Zinkherde" aufbauen. Diese Auflage wird oft nicht direkt von der Putzvorrichtung entfernt. Daraus baut sich je­doch schnell an dieser Stelle weiteres Zink auf und die Putz­vorrichtung kann das Zink nicht mehr entfernen, es backt an der Walze fest.Cleaning devices with mesh emery are known which remove the abrasion which is transferred from the galvanized belts to the rollers from the rollers. The cleaning device moves along the roller and presses a head with emery on the roller. Through the rota tion movement of the roller, the surface is cleaned with it. The resulting zinc dust is removed via an extraction system. Nevertheless, it happens again and again, especially with matted rollers, that so-called "zinc stoves" build up at certain points. This pad is often not removed directly from the cleaning device. However, this quickly builds up additional zinc at this point and the cleaning device can no longer remove the zinc, it sticks to the roller.

Dieser Effekt verstärkt sich ganz besonders bei Zinklegie­rungen oder Aluminium-Zink-Legierungen. Hier ist in verstärk­tem Maße ein Abrieb von dem Bandmaterial zu beobachten, der sich schnell an den Walzen aufbaut und mit der normalen Putz­vorrichtung nicht mehr entfernt werden kann. Dieses führt da­zu, daß oft schon nach kurzer Zeit die Arbeitswalzen gewech­selt werden müssen, weil der dressierte Bandstahl den gefor­derten Qualitätserfordernissen nicht entspricht.This effect is particularly pronounced with zinc alloys or aluminum-zinc alloys. Here there is an increased amount of abrasion from the strip material that builds up quickly on the rollers and can no longer be removed with the normal cleaning device. This means that the work rolls often have to be changed after a short time, because the trained steel strip does not meet the required quality requirements.

Ein Walzenwechsel bedeutet in einer kontinuierlich arbeiten­den Bandverzinkungsanlage jedoch einen enormen Produktionsan­fall von nichtdressierten Bändern, die nachgearbeitet werden müssen.In a continuously operating strip galvanizing plant, however, a roll change means an enormous amount of production of undressed strips, which have to be reworked.

Der Erfindung liegt deshalb die Aufgabe zugrunde, ein quali­tativ hochwertiges, schmelztauchveredeltes Bandmaterial in einer kontinuierlich arbeitenden Bandverzinkungsanlage herzu­stellen, wobei der Ausfall der Dressierwalzen herabgesetzt und damit ihre Einsatzzeit erhöht werden soll, bei einem gleichbleibendem Verformungsgrad.The invention is therefore based on the object of producing a high-quality, hot-dip coated strip material in a continuously operating strip galvanizing system, the failure of the skin pass rollers being reduced and thus increasing their operating time, with a constant degree of deformation.

Die Aufgabe wird dadurch gelöst, daß kontinuierlich ein Mik­roschutzfilm, der ein Anhaften des Zinkes an die Dressierwal­zen verhindert, einen Oberflächenschutz auf den Walzen auf­recht erhält und damit die Einsatzzeit der Walzen verlängert, bei gleichzeitiger Qualitätssteigerung der Oberfläche des schmelztauchveredelten Bandmaterials, ohne auf der Bandober­fläche Rückstände zu hinterlassen, die eine anschließende Be­schichtung oder eine andere Bearbeitung stören würden.The object is achieved in that a micro protective film, which prevents the zinc from adhering to the skin pass rollers, maintains surface protection on the rollers and thus extends the operating time of the rollers, while at the same time increasing the surface quality of the hot-dip coated strip material, without residues on the strip surface that would interfere with subsequent coating or other processing.

Das Verfahren soll anhand einer schematischen in Figur 1 dar­gestellten Anlage näher erläutert werden.The method will be explained in more detail using a schematic system shown in FIG. 1.

In einem definierten Abstand und Winkel von den Dressierwal­zen befinden sich, je nach Breite der Walze (2), Sprühdü­sen (3) oder Sprühleisten, die mit mehreren gleichen Sprüh­düsen (3) ausgerüstet sind. Der Abstand richtet sich nach dem verwendeten Sprühwinkel der Sprühdüsen sowie dem Druck und dem Sprühmittel.Depending on the width of the roller (2), there are spray nozzles (3) or spray bars that are equipped with several identical spray nozzles (3) at a defined distance and angle from the skin pass rollers. The distance depends on the spray angle used for the spray nozzles as well as the pressure and the spray medium.

An das Sprühmittel (4) werden mehrere Anforderungen gestellt. Es muß einen Mikroschutzfilm auf den Dressierwalzen hinter­lassen, der ein Anhaften des Zinkes oder der Aluminium-Zink-­Legierungen unterbindet. Gleichzeitig muß sich das Sprühmit­tel rückstandslos und schnell von dem schmelztauchveredelten Bandmaterial verflüchtigen, weil das Bandmaterial ohne zu­sätzliche Behandlung für die Oberflächenbeschichtung zur Ver­fügung stehen muß.Several requirements are placed on the spray medium (4). A micro-protective film must be left on the skin pass rollers to prevent the zinc or aluminum-zinc alloys from sticking. At the same time, the spray agent must volatilize quickly and without residue from the hot-dip coated strip material, because the strip material must be available for the surface coating without additional treatment.

Als Sprühmittel können z. B. Gemische aus aromatenarmen bzw. aromatenreichen, aliphatischen Kohlenwasserstoffen mit speziellen Netzmitteln eingesetzt werden. Bei diesen Sprüh­mitteln handelt es sich um oberflächenaktive Gemische, deren verwendete Lösungsmittel keine gesundheitsschädlichen Dämpfe entwickeln.As a spray can, for. B. Mixtures of low-aromatic or aromatic-rich, aliphatic hydrocarbons with special wetting agents. These sprays are surface-active mixtures, the solvents used do not produce any harmful vapors.

Nach der Verdunstung der Lösungsmittel verbleibt kein stören­der Rückstand mehr auf dem Blech. Deshalb können die Bleche sofort dem Weiterverarbeitungsprozeß zugeführt werden. Dabei sind keine Fälle bekannt geworden, wo nach dem Abdunsten der Lösungsmittel Lackierfehler oder Lackierschäden aufgetreten sind.After the solvents have evaporated, there is no longer any annoying residue on the sheet. Therefore, the sheets can immediately be sent to the further processing process. No cases have become known in which paint defects or paint damage have occurred after the solvent has evaporated.

Der Mikroschutzfilm auf den Dressierwalzen darf keinen Schmiereffekt erzeugen. Er unterbindet nur den direkten Kon­takt des Zinkes mit der Walze und läßt so den Aufbau von Zinkpartikeln oder Legierungsbestandteilen der Oberflächen­veredelung nicht zu. Der Mikroschutzfilm wirkt quasi als Trennschicht.The micro protection film on the skin pass rollers must not produce a smear effect. It only prevents the zinc from coming into direct contact with the roller and thus prevents the build-up of Zinc particles or alloy components of the surface refinement too. The micro protection film acts as a kind of separating layer.

Bekannt sind diese Sprüh- oder Gleitmittel beim Profilieren von Blechen aller Art.These spray or lubricants are known when profiling sheet metal of all kinds.

Das Sprühmittel wird durch eine Zweistoffdüse zerstäubt, die auf die Viscosität des Sprühmittels eingestellt ist. Als Treibmedium wird Preßluft von hoher Reinheit verwendet. Die Preßluft reißt das Sprühmittel mit, wobei die Höhe des Druckes und die Menge der Preßluft die austretende Sprühmit­telmenge bestimmen. Es ist erstaunlich, welch geringe Menge Sprühmittel pro Düse und Stunde notwendig sind, um einen wirksamen Mikroschutzfilm auf den Dressierwalzen (2) aufrecht zu erhalten. Der Sprühmitteldrucksatz liegt unter 5 ml/h und Düse. Diese geringe Menge Sprühmittel bewirkt neben dem sicheren Oberflächenschutz gegen Ablagerungen auch die Ver­meidung einer höheren Verformung, weil der Auftrag auf der Dressierwalze mikroskopisch dünn ist.The spray is atomized through a two-substance nozzle, which is adjusted to the viscosity of the spray. Compressed air of high purity is used as the driving medium. The compressed air entrains the spray, the pressure and the amount of compressed air determining the amount of spray. It is astonishing how little spraying agent per nozzle and hour is necessary to maintain an effective micro-protective film on the skin pass rollers (2). The spray medium pressure set is below 5 ml / h and nozzle. In addition to the safe surface protection against deposits, this small amount of spraying agent also prevents a higher deformation because the application on the skin pass roller is microscopic.

Der Vorteil dieses Verfahrens liegt darin, daß es auch bei mattierten Walzen eingesetzt werden kann. Gerade bei diesen Walzentypen setzen sich die Walzen sehr schnell zu und werden damit unbrauchbar, was einen Stillstand des Walzengerüstes zur Folge hat. Ein Walzenwechsel ist teuer und das ständige Nacharbeiten der Walzen mindert, die Lebensdauer ernorm.The advantage of this method is that it can also be used with matted rollers. With these types of rollers in particular, the rollers clog up very quickly and are therefore unusable, which results in the roller stand coming to a standstill. A roll change is expensive and the constant reworking of the rolls reduces the service life enormously.

Aber auch die Qualität des oberflächenveredelten Bleches wird durch das vorbeschriebene Verfahren enorm verbessert. Eine Nachdressierung der Bänder ist nicht mehr notwendig. Dieses trifft auch bei den oberflächenveredelten Blechen zu, die keinen reinen Zinküberzug haben.But the quality of the surface-coated sheet is also enormously improved by the above-described process. It is no longer necessary to re-address the tapes. This also applies to the surface-coated sheets that do not have a pure zinc coating.

Ein besonderes Problem stellen die Duowalzen dar. Diese Wal­zen können nicht gewaschen werden, weil sonst das Waschmittel aufs Band laufen würde und Verunreinigungen hervorruft. Gera­de für diesen Walzentyp ist der Anmeldungsgegenstand geeig­net.The duo rollers represent a particular problem. These rollers cannot be washed because otherwise the detergent would run onto the belt and cause contamination. The subject of the application is particularly suitable for this type of roller.

Mit der Durchsatzmenge des Sprühmittels kann aber auch bei einem Dressiergerüst mit ausreichend guter Oberfläche der Verformungsgrad erhöht werden, d. h. bei größeren Sprühmit­telmengen wird der Verformungsgrad erhöht. Durch den schwenk­baren Düsenhalter kann der Sprühwinkel verändert werden. Es kann das Sprühmittel direkt in den Walzenstock hineingesprüht werden, was eine Erhöhung des Verformungsgrades zur Folge hat.With the flow rate of the spray, the degree of deformation can also be increased in the case of a skin pass mill with a sufficiently good surface, i. H. the degree of deformation is increased with larger quantities of spray. The spray angle can be changed using the swiveling nozzle holder. The spray can be sprayed directly into the roller mill, which results in an increase in the degree of deformation.

Ein weiteres Anwendungsgebiet wären Richtmaschinen für ober­flächenveredelte Stahlbänder. Auch diese Walzen und Rollen bleiben frei von Oberflächenablagerungen, wobei hier eine diskontinuierliche Besprühung ausreichend ist.Another area of application would be straightening machines for surface-coated steel strips. These rollers and rollers also remain free of surface deposits, whereby discontinuous spraying is sufficient here.

Claims (9)

1. Verfahren zur Erzeugung eines Mikroschutzfilmes auf rotie­renden Walzen, insbesondere Dressierwalzen zum Dressieren von oberflächenveredeltem Breitband und Blech aus weichen unlegierten Stählen mittels Sprühdüsen oder Sprühleisten, dadurch gekennzeichnet, daß die Sprühdüsen Zweistoffdüsen sind, die mit reinster Preßluft und einem geeigneten flüchtigen Sprühmittel kontinuierlich beaufschlagt werden, deren Sprühmittelmengendurchsatz pro Düse kleiner als 5 ml/h ist und das für jede mit dem oberflächenveredelten Blech (1) unmittelbar in Berührung kommende Walze (2) eine Sprühdüse (3) oder Sprühleiste vorhanden ist.1. A method for producing a micro-protective film on rotating rollers, in particular skin pass rollers for dressing surface-coated broadband and sheet metal made of soft unalloyed steels by means of spray nozzles or spray strips, characterized in that the spray nozzles are two-substance nozzles which are continuously acted upon with the purest compressed air and a suitable volatile spray whose spray agent flow rate per nozzle is less than 5 ml / h and for each roller (2) which comes into direct contact with the surface-coated sheet (1) there is a spray nozzle (3) or spray bar. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß das Sprühmittel ein oberflächenaktives Mittel ist, daß aus einem Gemisch aromatenarmer bzw. aromatenreicher, alipha­tischer Kohlenwasserstoffe, mit geeigneten Netzmitteln be­steht.2. The method according to claim 1, characterized in that the spray is a surface-active agent that consists of a mixture of low-aromatic or aromatic-rich, aliphatic hydrocarbons, with suitable wetting agents. 3. Verfahren nach Anspruch 1 und 2, dadurch gekennzeichnet, daß das oberflächenveredelte Blech einen schmelztauchver­edelten Überzug aus Zink hat.3. The method according to claim 1 and 2, characterized in that the surface-coated sheet has a hot-dip coated zinc coating. 4. Verfahren nach den Ansprüchen 1 und 2, dadurch gekenn­zeichnet, daß das oberflächenveredelte Blech einen schmelztauchveredelten Überzug aus einer Zink-Aluminium-­Legierung hat.4. The method according to claims 1 and 2, characterized in that the surface-coated sheet has a hot-dip coated coating made of a zinc-aluminum alloy. 5. Verfahren nach den Ansprüchen 1 und 2, dadurch gekenn­zeichnet, daß das oberflächenveredelte Blech einen schmelztauchveredelten Überzug aus einer Aluminium-Zink-­Legierung hat.5. The method according to claims 1 and 2, characterized in that the surface-coated sheet has a hot-dip coated coating made of an aluminum-zinc alloy. 6. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Sprühdüsen (3) oder Sprühleisten in einem Abstand < 250 mm von der Walze (2) schwenkbar angebracht sind.6. The method according to claim 1, characterized in that the spray nozzles (3) or spray bars are pivotally mounted at a distance <250 mm from the roller (2). 7. Verfahren nach den Ansprüchen 1 bis 6, dadurch gekenn­zeichnet, daß das Verfahren bei glatten und mattierten Walzen angewendet werden kann.7. The method according to claims 1 to 6, characterized in that the method can be applied to smooth and matt rollers. 8. Verfahren nach den Ansprüchen 1 bis 7, dadurch gekenn­zeichnet, daß das Verfahren auch an Richtmaschinen mit Rollen und Walzen angewendet werden kann.8. The method according to claims 1 to 7, characterized in that the method can also be applied to straightening machines with rollers and rollers. 9. Verfahren nach Anspruch 8, dadurch gekennzeichnet, daß die Sprühdüsen oder Sprühleisten diskontinuierlich in Inter­vallen von<40 s/h mit Sprühmittel beaufschlagt werden.9. The method according to claim 8, characterized in that the spray nozzles or spray bars are applied discontinuously at intervals of <40 s / h with spray.
EP19900101343 1989-03-03 1990-01-24 Method for producing a protective microlayer Withdrawn EP0385097A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3906746A DE3906746A1 (en) 1989-03-03 1989-03-03 METHOD FOR PRODUCING A MICRO PROTECTIVE FILM
DE3906746 1989-03-03

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EP0385097A2 true EP0385097A2 (en) 1990-09-05
EP0385097A3 EP0385097A3 (en) 1992-01-08

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EP (1) EP0385097A3 (en)
JP (1) JPH02277574A (en)
KR (1) KR900014047A (en)
AU (1) AU5071290A (en)
CA (1) CA2011519A1 (en)
DD (1) DD301670A9 (en)
DE (1) DE3906746A1 (en)
ES (1) ES2017612A4 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997046333A1 (en) * 1996-05-31 1997-12-11 Thyssen Stahl Aktiengesellschaft Process and device for treating thin sheet metal using cylinders pressed against it, in particular rollers
EP3401029A1 (en) 2017-05-12 2018-11-14 Hydro Aluminium Rolled Products GmbH Device and method for embossing rollers with integrated roller cleaning

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DE102006037822A1 (en) * 2006-08-12 2008-02-14 Evonik Degussa Gmbh Method for dispensing a dispersion
DE102019215880A1 (en) * 2019-10-15 2021-04-15 Lindauer Dornier Gesellschaft Mit Beschränkter Haftung PROCESS AND FILM STRETCHER FOR THE PRODUCTION OF SEALABLE BIAXIAL ORIENTED POLYESTER-BASED FILM

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Publication number Priority date Publication date Assignee Title
US1616038A (en) * 1920-08-16 1927-02-01 Matthiessen Hegeler Zinc Co Method of rolling zinc
US3105400A (en) * 1954-05-10 1963-10-01 Aluminum Co Of America Rolling of aluminous metal foil
US3318126A (en) * 1964-04-03 1967-05-09 Allegheny Ludlum Steel Method of rolling steel strip material
US3432434A (en) * 1967-05-19 1969-03-11 Mobil Oil Corp Alkyl aromatic hydrocarbon emulsion lubricant for metal rolling

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1616038A (en) * 1920-08-16 1927-02-01 Matthiessen Hegeler Zinc Co Method of rolling zinc
US3105400A (en) * 1954-05-10 1963-10-01 Aluminum Co Of America Rolling of aluminous metal foil
US3318126A (en) * 1964-04-03 1967-05-09 Allegheny Ludlum Steel Method of rolling steel strip material
US3432434A (en) * 1967-05-19 1969-03-11 Mobil Oil Corp Alkyl aromatic hydrocarbon emulsion lubricant for metal rolling

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997046333A1 (en) * 1996-05-31 1997-12-11 Thyssen Stahl Aktiengesellschaft Process and device for treating thin sheet metal using cylinders pressed against it, in particular rollers
EP3401029A1 (en) 2017-05-12 2018-11-14 Hydro Aluminium Rolled Products GmbH Device and method for embossing rollers with integrated roller cleaning
DE102017110413A1 (en) * 2017-05-12 2018-11-15 Hydro Aluminium Rolled Products Gmbh Device and method for embossing rolling with integrated roller cleaning
DE102017110413B4 (en) 2017-05-12 2018-11-29 Hydro Aluminium Rolled Products Gmbh Device and method for embossing rolling with integrated roller cleaning

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DE3906746C2 (en) 1991-05-23
AU5071290A (en) 1990-09-06
DE3906746A1 (en) 1990-09-13
KR900014047A (en) 1990-10-22
ES2017612A4 (en) 1991-03-01
DD301670A9 (en) 1993-06-03
JPH02277574A (en) 1990-11-14
CA2011519A1 (en) 1990-09-03
EP0385097A3 (en) 1992-01-08

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