EP0852981A1 - Apparatus for reducing the roughness and the wear of multilayer belts - Google Patents

Apparatus for reducing the roughness and the wear of multilayer belts Download PDF

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Publication number
EP0852981A1
EP0852981A1 EP98100183A EP98100183A EP0852981A1 EP 0852981 A1 EP0852981 A1 EP 0852981A1 EP 98100183 A EP98100183 A EP 98100183A EP 98100183 A EP98100183 A EP 98100183A EP 0852981 A1 EP0852981 A1 EP 0852981A1
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Prior art keywords
grooves
cylinder
approximately
circumference
roughness
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EP98100183A
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German (de)
French (fr)
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EP0852981B1 (en
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Manfred Dr. Schlatter
Manfred Dipl.-Ing. Schultheiss (Fh)
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Emtec Magnetics GmbH
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Emtec Magnetics GmbH
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D13/00—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor
    • B24D13/02—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by their periphery
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
    • B24B19/22—Single-purpose machines or devices for particular grinding operations not covered by any other main group characterised by a special design with respect to properties of the material of non-metallic articles to be ground

Definitions

  • the invention relates to a device for reducing the Roughness and the abrasion of layered tapes by means of a rotating polishing device with structural peripheral surface.
  • a layer with a binder e.g. from a softer Plastic is made of PVC.
  • Such layers are used in abrasion-sensitive devices operated, these tapes in contact with surfaces of stationary or moving parts of the device can occur Deposits or deposits of abrasion malfunctions occur.
  • the object of the invention is thus such abrasion remove from layer tapes for use in the above characterized devices are determined.
  • the object is achieved with a device for Reduce roughness and abrasion of laminated tapes by means of a rotating polishing element with a structural peripheral surface, by means of a provided on the circumference of the polishing member thread-like structure.
  • the polishing member is a cylinder, whose height corresponds at least to the width of the layer tape and in particular is twice as large.
  • the circumferential structure of the cylinder can expediently consist essentially of coaxially arranged grooves exist, which are also thread-like Can have shapes and also with a minimum increase of 0.16 mm can be arranged.
  • polishing member also axially arranged grooves on the cylinder circumference.
  • the axial grooves can have a V-shape, in particular a Includes angles of 112 °, but they can also have a sawtooth shape, in particular an angle of 63 °.
  • the number of coaxial grooves can be between about 1 and 20 and should be around 10 for best results.
  • the coaxial grooves can have a substantially V-shape and the webs in between can have a flank width of 0.1 mm on the Have cylinder peripheral surface.
  • the material of the cylinder circumference expediently consists of hardened Stole. However, it can also be advantageously made of oxide ceramic or a hard metal alloy.
  • the material of the cylinder circumference should have a hardness of at least 60 Rockwell.
  • embodiments of the device according to the invention are shown and described below with reference to this.
  • a polishing member is shown in Figures 1 and 2 as a polishing cylinder 5 and 5A with a central bore 6 or 6A for receiving a not shown axis of a rotary organ.
  • either coaxial grooves 8 in the form of a ring or as coaxial, thread-like, helically arranged grooves are provided on the circumference 7 of the polishing cylinder 5, 5A.
  • the cylinder 5 has the diameter 2r, the cylinder 5A the diameter 2R up to the outer circumferential surface, in which the tips of the webs 9 also lie between the grooves 8.
  • the grooves 8 are applied to the cylinder circumference 7, for example in a known manner, by turning or grinding.
  • the grooves 8 can have a V-shape, for example with an angle ⁇ of approximately 40 °.
  • other groove shapes can also be used.
  • the tips of the webs 9 are ground off with suitable grinding devices after the grooves 8 have been produced, so that they still have a defined one Flank width "of about 0.1 mm and thus also have two polishing edges instead of just one.
  • axial grooves 10 can also be provided from the circumference of the cylinder 5 or 5A.
  • the groove shapes are as follows: V-shape for grooves 10A with an angle ⁇ of approximately 112 °, sawtooth shape for grooves 10B with an angle ⁇ of approximately 63 ° and rectangular shape for grooves 10C with an angle ⁇ of approximately 3.6 °.
  • Other groove shapes within the meaning of the invention are also suitable for detaching and absorbing the abrasion from the layer tape.
  • the grooves 10 are produced by sawing, milling, grinding or also by spark erosion processes or EDM (Electrical Discharge Milling) processes.
  • the surface of the layered tape is in a thickness range of a few molecular layers so strongly heated that the roughness tips melt and in doughy condition in the valleys are smeared in, the surface being smooth and becomes shiny.
  • This enamel layer is referred to as the "Beilby layer”. It is essential that no material is obtained by polishing is removed, neither in the form of chips or other Particles, in another form. This will surprisingly an occurrence and deposition of abrasion with its above-mentioned Disadvantages consciously avoidable.
  • the abrasion of layer tapes could be increased by a factor of 10 using the device according to the invention can be reduced with a small device, Manufacturing and maintenance expenses.
  • a polisher to reduce roughness and Abrasion from layered strips consists of a cylinder with coaxial Grooves or grooves of various shapes, which are advantageously thread-like are. Axial grooves can also be provided be.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Laminated Bodies (AREA)

Abstract

Eine Poliervorrichtung (5,5A) zum Verringern der Rauhigkeit und des Abriebs von Schichtbändern besteht aus einem Zylinder mit koaxialen Riefen bzw. Nuten (8) verschiedener Form, die vorteilhaft gewindeähnlich sind. Es können zusätzlich axiale Nuten (8) vorgesehen sein. <IMAGE>A polishing device (5.5 A) for reducing the roughness and the abrasion of laminated strips consists of a cylinder with coaxial grooves or grooves (8) of different shapes, which are advantageously thread-like. Axial grooves (8) can also be provided. <IMAGE>

Description

Die Erfindung betrifft eine Vorrichtung zum Verringern der Rauhigkeit und des Abriebs von Schichtbändern mittels eines sich drehenden Polierorgans mit Strukturumfangsfläche.The invention relates to a device for reducing the Roughness and the abrasion of layered tapes by means of a rotating polishing device with structural peripheral surface.

Schichtbänder der "rauhen" und abriebsverursachenden Art besitzen eine Schicht mit einem Bindemittel, das z.B. aus einem weicheren Kunststoff als PVC besteht.Have layers of the "rough" and abrasion-causing type a layer with a binder, e.g. from a softer Plastic is made of PVC.

Werden derartige Schichtbänder in abriebsempfindlichen Geräten betrieben, wobei diese Bänder in Kontakt mit Oberflächen von feststehenden oder bewegten Geräteteilen treten, so können durch Ab- oder Anlagerung von Abrieb Funktionsstörungen auftreten.Such layers are used in abrasion-sensitive devices operated, these tapes in contact with surfaces of stationary or moving parts of the device can occur Deposits or deposits of abrasion malfunctions occur.

Der Erfindung stellt sich somit die Aufgabe, derartigen Abrieb von Schichtbändern zu entfernen, die zur Benutzung in vorstehend charakterisierten Geräten bestimmt sind.The object of the invention is thus such abrasion remove from layer tapes for use in the above characterized devices are determined.

Die Aufgabe wird erfindungsgemäß gelöst mit einer Vorrichtung zum Verringern der Rauhigkeit und des Abriebs von Schichtbändern mittels eines sich drehenden Polierorgans mit Struktur-Umfangsfläche, mittels einer am Umfang des Polierorgans vorgesehenen gewindeähnlichen Struktur.The object is achieved with a device for Reduce roughness and abrasion of laminated tapes by means of a rotating polishing element with a structural peripheral surface, by means of a provided on the circumference of the polishing member thread-like structure.

Damit wird beim Vorbeiführen der Schichtoberfläche an der erwähnten Umfangs-Struktur deren Rauhigkeit durch Abschleifen der Spitzen der Oberflächenrauhheit reduziert und überraschenderweise gleichzeitig der Abrieb von der Oberfläche entfernt, was durch eine alleinige Reinigung nicht erreichbar war.Thus, when the layer surface is guided past the surface Circumferential structure whose roughness by grinding the Surface roughness peaks reduced and surprisingly at the same time the abrasion is removed from the surface by what sole cleaning was not possible.

In praktischer Ausgestaltung ist das Polierorgan ein Zylinder, dessen Höhe wenigstens der Breite des Schichtbandes entspricht und insbesondere doppelt so groß ist.In a practical embodiment, the polishing member is a cylinder, whose height corresponds at least to the width of the layer tape and in particular is twice as large.

Damit wird eine einfache Herstellung des Polierorgans sichergestellt und eine ausreichende Kontaktfläche für das Schichtband bereitgestellt. This ensures simple manufacture of the polishing member and a sufficient contact area for the layer tape provided.

Die Umfangsstruktur des Zylinders kann zweckmäßig aus im wesentlichen koaxial angeordneten Nuten bestehen, die auch gewindeähnliche Formen haben können und auch mit einer Mindest-Steigerung von 0,16 mm angeordnet sein können.The circumferential structure of the cylinder can expediently consist essentially of coaxially arranged grooves exist, which are also thread-like Can have shapes and also with a minimum increase of 0.16 mm can be arranged.

Vorteilhaft zur Erhöhung der Wirksamkeit des Polierorgans sind auch axial angeordnete Nuten am Zylinderumfang.Are advantageous for increasing the effectiveness of the polishing member also axially arranged grooves on the cylinder circumference.

Die Axial-Nuten können mit einer V-Form, die insbesondere einen Winkel von 112° einschließt, ausgebildet sein, sie können jedoch auch eine Sägezahn-Form aufweisen, die insbesondere einen Winkel von 63° einschließen können.The axial grooves can have a V-shape, in particular a Includes angles of 112 °, but they can also have a sawtooth shape, in particular an angle of 63 °.

Die Zahl der koaxialen Nuten kann zwischen etwa 1 und 20 und sollte etwa bei 10 liegen, um optimale Ergebnisse zu erzielen.The number of coaxial grooves can be between about 1 and 20 and should be around 10 for best results.

Die koaxialen Nuten können im wesentlichen V-Form aufweisen und die Stege dazwischen können eine Flankenbreite von 0,1 mm an der Zylinder-Umfangsfläche aufweisen.The coaxial grooves can have a substantially V-shape and the webs in between can have a flank width of 0.1 mm on the Have cylinder peripheral surface.

Zweckmäßig besteht das Material des Zylinderumfangs aus gehärtetem Stahl. Es kann jedoch auch vorteilhaft aus Oxid-Keramik oder eine Hartmetall-Legierung bestehen.The material of the cylinder circumference expediently consists of hardened Stole. However, it can also be advantageously made of oxide ceramic or a hard metal alloy.

Das Material des Zylinderumfangs sollte eine Härte von wenigsten 60 Rockwell aufweisen.
In der Zeichnung sind Ausführungsformen der erfindungsgemäßen Vorrichtung dargestellt und anhand davon nachfolgend beschrieben.The material of the cylinder circumference should have a hardness of at least 60 Rockwell.
In the drawing, embodiments of the device according to the invention are shown and described below with reference to this.

In der Zeichnung ist dargestellt in

Figur 1

ein Polierzylinder kleineren Durchmessers mit koaxialen oder gewindeähnlichen Nuten sowie Axialnuten
Figur 2

ein Polierzylinder größeren Durchmessers mit koaxialen oder gewindeähnlichen Nuten sowie Axialnuten.
In the drawing is shown in
Figure 1

a small diameter polishing cylinder with coaxial or thread-like grooves and axial grooves
Figure 2

a larger diameter polishing cylinder with coaxial or thread-like grooves and axial grooves.

Ein Polierorgan ist in Figur 1 und 2 als Polierzylinder 5 bzw. 5A mit einer zentralen Bohrung 6 bzw. 6A zur Aufnahme einer nicht dargestellten Achse eines Drehorgans dargestellt. A polishing member is shown in Figures 1 and 2 as a polishing cylinder 5 and 5A with a central bore 6 or 6A for receiving a not shown axis of a rotary organ.

Am Umfang 7 des Polierzylinders 5, 5A sind entweder koaxiale Nuten 8 in Ringform oder als koaxiale, gewindeähnlich schraubenförmig angeordnete Nuten vorgesehen. Der Zylinder 5 hat den Durchmesser 2r, der Zylinder 5A den Durchmesser 2R bis zur Außenumfangsfläche, in der auch die Spitzen der Stege 9 zwischen den Nuten 8 liegen. Die Nuten 8 werden z.B. in bekannter Weise durch Drehen oder Schleifen auf dem Zylinderumfang 7 aufgebracht. Die Nuten 8 können wie in Einzelheit X vergrößert dargestellt, V-Form aufweisen, z.B. mit einem Winkel β von etwa 40°. Es sind aber auch andere Nutenformen einsetzbar. Die Spitzen der Stege 9 werden nach Herstellung der Nuten 8 mit geeigneten Schleifvorrichtungen abgeschliffen, so daß sie noch eine definierte

Figure 00030001
Flankerbreite" von etwa 0,1 mm aufweisen und damit auch zwei Polierkanten, statt vorher nur einer, besitzen.On the circumference 7 of the polishing cylinder 5, 5A, either coaxial grooves 8 in the form of a ring or as coaxial, thread-like, helically arranged grooves are provided. The cylinder 5 has the diameter 2r, the cylinder 5A the diameter 2R up to the outer circumferential surface, in which the tips of the webs 9 also lie between the grooves 8. The grooves 8 are applied to the cylinder circumference 7, for example in a known manner, by turning or grinding. As shown in detail X, the grooves 8 can have a V-shape, for example with an angle β of approximately 40 °. However, other groove shapes can also be used. The tips of the webs 9 are ground off with suitable grinding devices after the grooves 8 have been produced, so that they still have a defined one
Figure 00030001
Flank width "of about 0.1 mm and thus also have two polishing edges instead of just one.

Wie in der Draufsicht Figur 1B bzw. 2B gezeigt, können auch Axialnuten 10 aus Umfang des Zylinders 5 bzw. 5A vorgesehen sein. Die Mindestzahl liegt bei einer oder zwei Axialnuten pro Zylinderumfang. Dargestellt sind Ausführungen mit ϕ = 10°, was 36 Nuten 10 entspricht (Einzelheit Y, Fig. 1) oder ε = 8°, was 45 Nuten 10 entspricht in Einzelheiten Y1 und Y2 in Figur 2. Die Nutenformen sind folgende: V-Form bei Nuten 10A mit einem Winkel α von etwa 112°, Sägezahnform bei Nuten 10B mit Winkel δ von etwa 63° und Rechteckform bei Nuten 10C mit Winkel γ von etwa 3,6°. Es sind auch andere Nutenformen im Sinne der Erfindung geeignet, den Abrieb vom Schichtband abzulösen und aufzunehmen. Die Nuten 10 werden durch Sägen, Fräsen, Schleifen oder auch durch Funkenerosionsverfahren oder EDM (Electrical Discharge Milling)-Verfahren hergestellt.As shown in the top view in FIG. 1B or 2B, axial grooves 10 can also be provided from the circumference of the cylinder 5 or 5A. The minimum number is one or two axial grooves per cylinder circumference. Shown are designs with ϕ = 10 ° , which corresponds to 36 grooves 10 (detail Y, Fig. 1) or ε = 8 °, which corresponds to 45 grooves 10 in detail Y1 and Y2 in Figure 2. The groove shapes are as follows: V-shape for grooves 10A with an angle α of approximately 112 °, sawtooth shape for grooves 10B with an angle δ of approximately 63 ° and rectangular shape for grooves 10C with an angle γ of approximately 3.6 °. Other groove shapes within the meaning of the invention are also suitable for detaching and absorbing the abrasion from the layer tape. The grooves 10 are produced by sawing, milling, grinding or also by spark erosion processes or EDM (Electrical Discharge Milling) processes.

Als Werkstoff für den Zylinderumfang kommen außer gehärtetem Stahl (Härte etwa 60 Rockwell) auch Oxidkeramik oder Hartmetall-Legierungen, etwa auf Basis Titankarbid, Wolframkarbid usw. in Frage, insbesondere, wenn die Schicht des Schichtbandes harte Teilchen enthält.As a material for the cylinder circumference come hardened Steel (hardness about 60 Rockwell) also oxide ceramics or hard metal alloys, about based on titanium carbide, tungsten carbide etc. in Question, especially if the layer of the layer tape is hard Contains particles.

Mittels des Polierorgans wird die Oberfläche des Schichtbandes in einem Dickenbereich von wenigen Molekül-Lagen so stark erhitzt, daß die Rauheitsspitzen abschmelzen und in teigigem Zustand in die Täler hineingeschmiert werden, wobei die Oberfläche glatt und glänzend wird. Diese Schmelzschicht wird als "Beilby-Schicht" bezeichnet. Wesentlich ist dabei, daß durch das Polieren kein Werkstoff abgetragen wird, weder in Form von Spänen oder anderen Teilchen, noch in anderer Form. Damit wird überraschenderweise ein Auftreten und eine Ablagerung von Abrieb mit seinen oben erwähnten Nachteilen bewußt vermeidbar. The surface of the layered tape is in a thickness range of a few molecular layers so strongly heated that the roughness tips melt and in doughy condition in the valleys are smeared in, the surface being smooth and becomes shiny. This enamel layer is referred to as the "Beilby layer". It is essential that no material is obtained by polishing is removed, neither in the form of chips or other Particles, in another form. This will surprisingly an occurrence and deposition of abrasion with its above-mentioned Disadvantages consciously avoidable.

Um gute Polierergebnisse zu erhalten, hat sich herausgestellt, daß eine Relativgeschwindigkeit zwischen dem Zylinderumfang und dem Schichtband im Bereich von -10 und +10 m/s vorteilhaft ist, wobei das negative Vorzeichen für eine langsamere Umfangsgeschwindigkeit als die Geschwindigkeit des Schichtbands steht, das positive Vorzeichen für eine schnellere.To get good polishing results, it turned out that a relative speed between the cylinder circumference and the layer belt in the range of -10 and +10 m / s is advantageous, with the negative sign for a slower peripheral speed than the speed of the layer tape stands, the positive sign for faster.

Je nach Schichtbandmaterial kann der Kontaktwinkel zwischen Band und Zylinderumfang und der Bandzug bei der Bandbewegung optimiert werden.Depending on the layered tape material, the contact angle between the tape and cylinder circumference and the belt tension optimized during belt movement will.

Der Abrieb von Schichtbändern konnte um den Faktor 10 mittels der erfindungsgemäßen Vorrichtung reduziert werden bei geringem Vorrichtungs-, Herstellungs- und Wartungsaufwand.The abrasion of layer tapes could be increased by a factor of 10 using the device according to the invention can be reduced with a small device, Manufacturing and maintenance expenses.

Eine Poliervorrichtung zum Verringern der Rauhigkeit und des Abriebs von Schichtbändern besteht aus einem Zylinder mit koaxialen Riefen bzw. Nuten verschiedener Form, die vorteilhaft gewindeähnlich sind. Es können zusätzlich axiale Nuten vorgesehen sein.A polisher to reduce roughness and Abrasion from layered strips consists of a cylinder with coaxial Grooves or grooves of various shapes, which are advantageously thread-like are. Axial grooves can also be provided be.

Claims (13)

Vorrichtung zum Verringern der Rauhigkeit und des Abriebs von Schichtbändern mittels eines sich drehenden Polierorgans mit Struktur-Umfangfläche, gekennzeichnet durch eine am Umfang (7) des Polierorgans (5, 5A) vorgesehene gewindeähnliche Struktur (8).Device for reducing the roughness and abrasion of With a rotating polishing device Structure circumferential area, characterized by an am Thread-like circumference (7) of the polishing member (5, 5A) is provided Structure (8). Vorrichtung nach Anspruch 1, gekennzeichnet durch einen Zylinder als Polierorgan (5, 5A) dessen Höhe wenigstens etwa der Breite des Schichtbandes entspricht und insbesondere etwa das Doppelte beträgt.Device according to claim 1, characterized by a Cylinder as a polishing member (5, 5A) whose height is at least approximately corresponds to the width of the layer tape and in particular approximately is double. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Struktur aus im wesentlichen koaxial angeordneten Nuten (8) besteht.Device according to claim 1 or 2, characterized in that that the structure is essentially coaxially arranged Grooves (8). Vorrichtung nach Anspruch 1 oder 2, daß die Struktur aus gewindeähnlichen Nuten (8) mit einer Mindest-Steigung von 0,16 mm besteht.Device according to claim 1 or 2, that the structure of thread-like grooves (8) with a minimum pitch of 0.16 mm. Vorrichtung nach Anspruch 3 oder 4, dadurch gekennzeichnet, daß außerdem axial angeordnete Nuten (10) am Zylinderumfang (7) vorgesehen sind.Device according to claim 3 or 4, characterized in that that also axially arranged grooves (10) on the cylinder circumference (7) are provided. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß die Axial-Nuten (10) eine V-Form aufweisen, die insbesondere einen Winkel (α) von etwa 112° einschließt.Apparatus according to claim 5, characterized in that the Axial grooves (10) have a V-shape, which in particular encloses an angle (α) of approximately 112 °. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß die Axial-Nuten eine Sägezahnform aufweisen, die insbesondere einen Winkel (δ) von etwa 63° einschließt.Apparatus according to claim 5, characterized in that the Axial grooves have a sawtooth shape, which in particular encloses an angle (δ) of approximately 63 °. Vorrichtung nach Anspruch 3 oder 4, dadurch gekennzeichnet, daß die Zahl der koaxialen Nuten (8) etwa 1 bis 20, insbesondere 10 beträgt.Device according to claim 3 or 4, characterized in that that the number of coaxial grooves (8) about 1 to 20, in particular Is 10. Vorrichtung nach Anspruch 3 oder 4, dadurch gekennzeichnet, daß die Koaxial-Nuten (8) im wesentlichen V-Form aufweisen und die Flankenbreite der Stege (9) an der Umfangsfläche (7) des Zylinders (5, 5A) zwischen den Koaxial-Nuten (8) etwa 0,1 mm beträgt. Device according to claim 3 or 4, characterized in that that the coaxial grooves (8) have a substantially V-shape and the flank width of the webs (9) on the peripheral surface (7) of the cylinder (5, 5A) between the coaxial grooves (8) approximately Is 0.1 mm. Vorrichtung nach Anspruch 1 und einem oder mehreren der Ansprüche 2 bis 10, dadurch gekennzeichnet, daß das Material des Zylinderumfangs (7) aus gehärtetem Stahl besteht.Apparatus according to claim 1 and one or more of the Claims 2 to 10, characterized in that the material the cylinder circumference (7) consists of hardened steel. Vorrichtung nach Anspruch 1 und einem oder mehreren der Ansprüche 2 bis 10, dadurch gekennzeichnet, daß das Material des Zylinderumfangs (7) aus Oxid-Keramik besteht.Apparatus according to claim 1 and one or more of the Claims 2 to 10, characterized in that the material the cylinder circumference (7) consists of oxide ceramic. Vorrichtung nach Anspruch 1 und einem oder mehreren der Ansprüche 2 bis 10, dadurch gekennzeichnet, daß das Material des Zylinderumfangs (7) aus einer Hartmetall-Legierung besteht.Apparatus according to claim 1 and one or more of the Claims 2 to 10, characterized in that the material of the cylinder circumference (7) made of a hard metal alloy consists. Vorrichtung nach Ansprüchen 10 bis 12, dadurch gekennzeichnet, daß das Material des Zylinderumfangs (7) eine Härte von mindestens 60 Rockwell aufweist.Device according to claims 10 to 12, characterized in that the material of the cylinder circumference (7) has a hardness of has at least 60 Rockwell.
EP98100183A 1997-01-13 1998-01-08 Apparatus for reducing the roughness and the wear of multilayer belts Expired - Lifetime EP0852981B1 (en)

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DE29700458U 1997-01-13
DE29700458U DE29700458U1 (en) 1997-01-13 1997-01-13 Device for reducing the roughness and abrasion of laminated strips

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EP0852981B1 EP0852981B1 (en) 2004-11-17

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CN113579363B (en) * 2021-09-01 2022-05-03 福建省闽铝轻量化汽车制造有限公司 Method and system for processing multilayer web

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FR492132A (en) * 1918-08-19 1919-06-28 Joseph Henry Woodington Improvements in the manufacture of abrasive wheels
GB445512A (en) * 1934-08-20 1936-04-14 Degussa Improvements in and relating to grinding or abrading tools
US3629918A (en) * 1969-09-22 1971-12-28 Wallace Murray Corp File
US3715787A (en) * 1970-11-25 1973-02-13 A Hudson Kinetic energy device for forming work pieces
GB2092474A (en) * 1981-02-09 1982-08-18 Norton Co Segmental pulpstone and abrasive segments
DE3332085A1 (en) * 1983-09-06 1985-03-21 Festo KG, 7300 Esslingen Tool for roughening, or removing material by abrasion or cutting

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US6416400B1 (en) 2002-07-09
KR19980070380A (en) 1998-10-26
DE29700458U1 (en) 1997-08-14
DE59812255D1 (en) 2004-12-23
SG55450A1 (en) 1998-12-21
JPH10296519A (en) 1998-11-10
EP0852981B1 (en) 2004-11-17

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