EP1028823B1 - Roll or cylinder with a metallic foam core - Google Patents

Roll or cylinder with a metallic foam core Download PDF

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Publication number
EP1028823B1
EP1028823B1 EP98962200A EP98962200A EP1028823B1 EP 1028823 B1 EP1028823 B1 EP 1028823B1 EP 98962200 A EP98962200 A EP 98962200A EP 98962200 A EP98962200 A EP 98962200A EP 1028823 B1 EP1028823 B1 EP 1028823B1
Authority
EP
European Patent Office
Prior art keywords
foam core
metal
shell
roll
hollow shell
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP98962200A
Other languages
German (de)
French (fr)
Other versions
EP1028823A1 (en
Inventor
Erhard Herbert GLÖCKNER
Willi Albert Peter Kutzner
Wolfgang Günter RUCKMANN
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Koenig and Bauer AG
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Koenig and Bauer AG
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Publication of EP1028823A1 publication Critical patent/EP1028823A1/en
Application granted granted Critical
Publication of EP1028823B1 publication Critical patent/EP1028823B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
    • B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
    • B22F7/062—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools involving the connection or repairing of preformed parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
    • B22F7/002—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of porous nature
    • B22F7/004—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of porous nature comprising at least one non-porous part
    • B22F7/006—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of porous nature comprising at least one non-porous part the porous part being obtained by foaming
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/08—Cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49544—Roller making
    • Y10T29/49547—Assembling preformed components
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49544—Roller making
    • Y10T29/49547—Assembling preformed components
    • Y10T29/49549—Work contacting surface element assembled to core
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49544—Roller making
    • Y10T29/49547—Assembling preformed components
    • Y10T29/49549—Work contacting surface element assembled to core
    • Y10T29/49552—Work contacting surface element assembled to core with prestressing of component by heat differential, e.g., shrink, fit
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49544—Roller making
    • Y10T29/49547—Assembling preformed components
    • Y10T29/49558—Includes securing removable cover on roller
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49863—Assembling or joining with prestressing of part
    • Y10T29/49865—Assembling or joining with prestressing of part by temperature differential [e.g., shrink fit]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49885—Assembling or joining with coating before or during assembling
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49908—Joining by deforming
    • Y10T29/49936—Surface interlocking

Definitions

  • the invention relates to semi-finished products with a metal foam core and to processes for their production.
  • US 30 87 807 A and DE 40 18 360 C1 for producing a metal foam body.
  • US 30 87 807 A shows that a hollow body can be filled with a metal foam by producing the metal foam inside the hollow body.
  • DE 44 43 840 C2 shows impact protection for a motor vehicle trim part.
  • a cushion made of light metal foam is completely enclosed in a coat.
  • the publication does not indicate whether and how the light metal foam is attached to the inside of the jacket.
  • rotating rollers are e.g. B. in the form of paper guide rollers or z. B. hollow cylinders known as form or blanket cylinders.
  • paper guide rollers are driven by the web to be guided by it itself. This can lead to an undesired influencing of the print carrier web, ie for example a paper web or film web, since, as said, the energy for acceleration or braking must be applied to the rollers themselves via the print carrier web.
  • the paper web widths are getting larger (e.g. 3.80 m) and on the other hand the printing medium web speeds are also getting bigger and meanwhile 18 m / sec. achieved.
  • the invention has for its object to provide semi-finished products for rollers and cylinders intended for rotating operation with a metal foam core and methods for their production.
  • rollers, cylinders and the like can be created with a metal foam core for rotary operation at high speeds, which can have a jacket that is dependent on the high temperatures (e.g. 500 ° C), which are necessary for the production of metal foam, is not burdened.
  • Metal pairs e.g. B. Rollers made of steel can be filled with an aluminum foam, without causing a relative movement between the inner surface of the roller and during rotation of the rollers / cylinders when accelerating and braking Metal foam surface comes. All the advantages that metal foaming of the rollers / cylinders brings without having to overuse them thermally can therefore be used. For example, on an individual electric motor drive. B. the paper guide rollers can be dispensed with.
  • All of the methods according to the invention have in common that they are open at one end or on both ends tubular body with any cross-section, z.
  • roller or cylinder is inserted a metal foam core.
  • the tubular body - called coat below - can be made of any material, for. B. of metal (steel, aluminum, brass, etc.), plastic, for. B. consist of polyamide, ceramic or paper. Its interior cross-section can have any geometrical shape: circular, square, single, multiple, longitudinally grooved, as a counterpart to a spline shaft (single spline, multiple spline), serrated shaft, K-profile shaft, etc.
  • the interior cross section of the jacket can therefore be any. However, it must be designed so that one or more metal foam core (s) can be introduced from one of the openings on the end faces of the rollers / cylinders or, in the case of multi-part metal foam cores, from both end faces.
  • the metal foam core is made spatially separate from the jacket and later introduced into the interior of the jacket.
  • the metal foam core can be manufactured in various ways known per se, e.g. B. according to the methods as described in DE 40 18 360 C1. However, the foaming in the method according to the invention takes place outside the jacket to be filled.
  • the metal foam core is introduced into the interior of the jacket in a quasi finished state and is fastened to the inside wall of all or only parts of the inside surface of the jacket.
  • the connection between the outer surface of the metal foam core and the inner surface of the jacket must be designed in such a way that it at least partially enables a force transmission between the jacket inside and the metal foam core via its outer surface.
  • This connection can be designed as a detachable connection or non-detachable connection.
  • the detachable connections can be positive connections, e.g. B. are profile connections, spring connections, but screw connections are also suitable.
  • the inner surfaces of the shell of the semi-finished product and the surface of the metal foam core must be adapted to one another, for. B. internal thread in the jacket, external thread on the metal foam core, metal foam core surface provided with a longitudinal wedge or as a "spline shaft” and the inner surface of the jacket with a corresponding groove (s).
  • Non-positive connections in the form of a cone connection would also be possible (outer cone for the metal foam core, inner cone for the jacket).
  • These releasable connections can also be made non-positively by additionally using a shrink connection.
  • the sheath is heated and the metal foam core is introduced into the inside of the sheath.
  • the metal foam core can also be cooled. After the temperature equalization between them, a very stable, form-fitting, force-fitting connection is created.
  • connection between the jacket and the metal foam core can also be an integral connection, for. B. adhesive connection or as a non-positive connection, z. B. shrink connection or as a combined material / non-positive connection.
  • the coat is z. B. made of steel, the metal foam z. B. an aluminum foam.
  • Anaerobic adhesives are particularly suitable for this, as they allow a simple connection of different metals.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Powder Metallurgy (AREA)
  • Laminated Bodies (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)

Abstract

Processes are disclosed for manufacturing semifinished products made of tubular elements with a metallic foam core.

Description

Die Erfindung betrifft Halbzeuge mit Metallschaum-Kern und Verfahren zu deren Herstellung.The invention relates to semi-finished products with a metal foam core and to processes for their production.

Durch die US 30 87 807 A und die DE 40 18 360 C1 sind Verfahren bekannt geworden, um einen Metallschaum-Körper zu erzeugen. Die US 30 87 807 A zeigt, daß ein Hohlkörper mit einem Metallschaum ausgefüllt werden kann, indem der Metallschaum im Inneren des Hohlkörpers erzeugt wird.Methods have become known from US 30 87 807 A and DE 40 18 360 C1 for producing a metal foam body. US 30 87 807 A shows that a hollow body can be filled with a metal foam by producing the metal foam inside the hollow body.

Die DE 44 43 840 C2 zeigt einen Aufprallschutz für ein Kraftfahrzeugverkleidungsteil. Hierbei ist ein Kissen aus Leichtmetallschaum vollständig in einem Mantel eingeschlossen. Ob und wie der Leichtmetallschaum im Inneren des Mantels befestigt ist, geht aus der Druckschrift nicht hervor.DE 44 43 840 C2 shows impact protection for a motor vehicle trim part. Here, a cushion made of light metal foam is completely enclosed in a coat. The publication does not indicate whether and how the light metal foam is attached to the inside of the jacket.

Die Art der Herstellung von Platten in Sandwich-Bauweise ist aus der DE-OS 21 19 490 zu entnehmen. Es finden zwischen Deckplatten angeordnete Metallschaumplatten Verwendung. Die Deckplatten sind an der Metallschaumplatte befestigt.The type of production of sandwich panels can be found in DE-OS 21 19 490. Metal foam plates arranged between cover plates are used. The cover plates are attached to the metal foam plate.

Z. B. in Rotationsdruckmaschinen sind rotierende Walzen z. B. in Form von Papierleitwalzen oder z. B. hohle Zylinder als Form- oder Gummituchzylinder bekannt. Bei z. B. Papierleitwalzen erfolgt ihr Antrieb über die durch sie zu führende Bahn selbst. Dieses kann zu einer ungewollten Beeinflussung der Druckträgerbahn, d. h. z. B. einer Papierbahn oder Folienbahn führen, da ja wie gesagt, die Energie zur Beschleunigung oder zum Abbremsen über die Druckträgerbahn auf die Walzen selbst aufgebracht werden muß. Hierzu kommen die Erschwernisse, daß einerseits die Papierbahnbreiten immer größer werden (z. B. 3,80 m) und andererseits die Druckträgerbahngeschwindigkeiten ebenfalls immer größer werden und inzwischen 18 m/sec. erreicht haben.For example, in rotary printing machines, rotating rollers are e.g. B. in the form of paper guide rollers or z. B. hollow cylinders known as form or blanket cylinders. At z. B. paper guide rollers are driven by the web to be guided by it itself. This can lead to an undesired influencing of the print carrier web, ie for example a paper web or film web, since, as said, the energy for acceleration or braking must be applied to the rollers themselves via the print carrier web. In addition, there are the difficulties that on the one hand the paper web widths are getting larger (e.g. 3.80 m) and on the other hand the printing medium web speeds are also getting bigger and meanwhile 18 m / sec. achieved.

Der Erfindung liegt die Aufgabe zugrunde, Halbzeuge für, für rotierenden Betrieb vorgesehene Walzen und Zylinder mit Metallschaum-Kern und Verfahren zu deren Herstellung zu schaffen.The invention has for its object to provide semi-finished products for rollers and cylinders intended for rotating operation with a metal foam core and methods for their production.

Diese Aufgabe wird erfindungsgemäß durch die Merkmale der Ansprüche 1 und 8 gelöst.This object is achieved by the features of claims 1 and 8.

Die mit der Erfindung erzielbaren Vorteile liegen insbesondere darin, daß zum Rotationsbetrieb mit hohen Drehzahlen geeignete Walzen, Zylinder und dgl. mit einem Metallschaum-Kern geschaffen werden können, die einen Mantel haben können, der von den hohen Temperaturen (z. B. 500° C), die zur Erzeugung von Metallschaum notwendig sind, nicht belastet wird. Es können Metallpaarungen, z. B. Walzen aus Stahl mit einem Aluminium-Schaum gefüllt werden, ohne daß es beim Rotationsbetrieb der Walzen / Zylinder beim Beschleunigen und Abbremsen zu einer Relativbewegung zwischen Walzen-Innenfläche und
Metallschaum-Mantelfläche kommt. Es können also alle Vorteile genutzt werden, die eine Metall-Ausschäumung der Walzen / Zylinder bringt, ohne sie thermisch überstrapazieren zu müssen.
So kann beispielsweise auf einen individuellen elektromotorischen Antrieb z. B. der Papierleitwalzen verzichtet werden.The advantages that can be achieved with the invention are, in particular, that suitable rollers, cylinders and the like can be created with a metal foam core for rotary operation at high speeds, which can have a jacket that is dependent on the high temperatures (e.g. 500 ° C), which are necessary for the production of metal foam, is not burdened. Metal pairs, e.g. B. Rollers made of steel can be filled with an aluminum foam, without causing a relative movement between the inner surface of the roller and during rotation of the rollers / cylinders when accelerating and braking
Metal foam surface comes. All the advantages that metal foaming of the rollers / cylinders brings without having to overuse them thermally can therefore be used.
For example, on an individual electric motor drive. B. the paper guide rollers can be dispensed with.

Ausführungsbeispiele des erfindungsgemäßen Halbzeugs und Verfahren zu deren Herstellung werden nachfolgend beschrieben:Exemplary embodiments of the semi-finished product according to the invention and methods for their production are described below:

Allen erfindungsgemäßen Verfahren ist gemein, daß in einen einseitig oder beidseitig stirnseitig offenen rohrförmigen Körper mit beliebigem Querschnitt, z. B. Walze oder Zylinder ein Metallschaum-Kern eingebracht wird.All of the methods according to the invention have in common that they are open at one end or on both ends tubular body with any cross-section, z. B. roller or cylinder is inserted a metal foam core.

Der rohrförmige Körper - im folgenden Mantel genannt - kann aus beliebigem Material bestehen, z. B. aus Metall (Stahl, Aluminium, Messing usw.), Kunststoff, z. B. Polyamid, Keramik oder Papier bestehen. Sein Innenraum-Querschnitt kann beliebige geometrische Form aufweisen: kreisförmig, quadratisch, einfach-, mehrfach-Längsgenutet, als Gegenstück zu einer Keilwelle (Einfach-Keil, Vielkeil), Kerbzahnwelle, K-Profilwelle usw.The tubular body - called coat below - can be made of any material, for. B. of metal (steel, aluminum, brass, etc.), plastic, for. B. consist of polyamide, ceramic or paper. Its interior cross-section can have any geometrical shape: circular, square, single, multiple, longitudinally grooved, as a counterpart to a spline shaft (single spline, multiple spline), serrated shaft, K-profile shaft, etc.

Der Innenraum-Querschnitt des Mantels kann also beliebig sein. Er muß jedoch so gestaltet sein, daß ein oder mehrere Metallschaum-Kern(e) von einer der öffnungen an den Stirnseiten der Walzen / Zylinder oder bei mehrteiligen Metallschaum-Kernen von beiden Stirnseiten eingebracht werden kann.The interior cross section of the jacket can therefore be any. However, it must be designed so that one or more metal foam core (s) can be introduced from one of the openings on the end faces of the rollers / cylinders or, in the case of multi-part metal foam cores, from both end faces.

Der Metallschaum-Kern wird räumlich getrennt vom Mantel hergestellt und später in das Innere des Mantels eingebracht.The metal foam core is made spatially separate from the jacket and later introduced into the interior of the jacket.

Der Metallschaum-Kern kann auf verschiedene an sich bekannte Arten hergestellt werden, z. B. nach den Verfahren, wie sie in der DE 40 18 360 C1 beschrieben sind. Jedoch findet das Aufschäumen bei den erfindungsgemäßen Verfahren außerhalb des zu füllenden Mantels statt.The metal foam core can be manufactured in various ways known per se, e.g. B. according to the methods as described in DE 40 18 360 C1. However, the foaming in the method according to the invention takes place outside the jacket to be filled.

Der Metallschaum-Kern wird erfindungsgemäß in das Innere des Mantels in quasi fertigem Zustand eingebracht und an dessen Innenwand an seiner gesamten oder nur Teilen der Innenfläche des Mantels befestigt. Die Verbindung zwischen der Außenfläche des Metallschaum-Kerns und der Innenfläche des Mantels muß so gestaltet sein, daß sie zumindest, partiell eine Kraftübertragung zwischen Mantel-Innenseite und Metallschaum-Kern über seine Außenfläche ermöglicht.
Diese Verbindung kann als lösbare Verbindung oder nichtlösbare Verbindung ausgeführt werden.According to the invention, the metal foam core is introduced into the interior of the jacket in a quasi finished state and is fastened to the inside wall of all or only parts of the inside surface of the jacket. The connection between the outer surface of the metal foam core and the inner surface of the jacket must be designed in such a way that it at least partially enables a force transmission between the jacket inside and the metal foam core via its outer surface.
This connection can be designed as a detachable connection or non-detachable connection.

Die lösbaren Verbindungen können formschLüssige Verbindungen sein, z. B. sind Profilverbindungen, Federverbindungen, aber auch Schraubverbindungen sind geeignet. In diesen eben genannten Fällen müssen die Innenflächen des Mantels des Halbzeuges und die Oberfläche des Metallschaum-Kernes aufeinander angepaßt sein, z. B. Innengewinde im Mantel, Außengewinde am Metallschaum-Kern, Metallschaum-Kernoberfläche versehen mit einem Längskeil oder als "Vielkeilwelle" und die Innenfläche des Mantels mit korrespondierender Nut(en). Auch wären kraftschlüssige Verbindungen in Form einer Kegelverbindung möglich (Außenkonus beim Metallschaum-Kern, Innenkonus beim Mantel).The detachable connections can be positive connections, e.g. B. are profile connections, spring connections, but screw connections are also suitable. In these cases just mentioned, the inner surfaces of the shell of the semi-finished product and the surface of the metal foam core must be adapted to one another, for. B. internal thread in the jacket, external thread on the metal foam core, metal foam core surface provided with a longitudinal wedge or as a "spline shaft" and the inner surface of the jacket with a corresponding groove (s). Non-positive connections in the form of a cone connection would also be possible (outer cone for the metal foam core, inner cone for the jacket).

Diese lösbaren Verbindungen können zusätzlich noch kraftschlüssig ausgeführt werden, in dem zusätzlich noch eine Schrumpfverbindung angewendet wird. Zu diesem Zweck wird bei Verwendung von metallischen Mänteln der Mantel erwärmt und der Metallschaum-Kern in das Innere des Mantels eingebracht. Der Metallschaum-Kern kann zusätzlich abgekühlt sein. Nach dem Temperaturausgleich zwischen ihnen wird so eine sehr stabile formschlüssig kraftschlüssige Verbindung erzeugt.These releasable connections can also be made non-positively by additionally using a shrink connection. To this end when using metallic sheaths, the sheath is heated and the metal foam core is introduced into the inside of the sheath. The metal foam core can also be cooled. After the temperature equalization between them, a very stable, form-fitting, force-fitting connection is created.

Die Verbindung zwischen Mantel und Metallschaum-Kern kann aber auch als stoffschlüssige Verbindung, z. B. Klebeverbindung oder aber auch als kraftschlüssige Verbindung, z. B. Schrumpfverbindung oder als kombinierte stoff-/kraftschlüssige Verbindung ausgeführt werden. Im letzteren Fall wird auf einen mit einem Kleber - z. B. Metallkleber auf der chemischen Basis von Dimethacrylatester [z. B. LOCTITE 574 (Handelsname der Fa. LOCTITE)] - bestrichenen Metallschaum-Kern ein z. B. erwärmter Mantel aufgeschoben. Der Mantel ist dabei z. B. aus Stahl, der Metallschaum z. B. ein Aluminium-Schaum. Nach Abkühlen und Aushärten des Klebers kommt eine sehr stabile
Schrumpf-/Klebeverbindung zustande. Hierbei eignen sich besonders anaerobe Klebstoffe, die eine Verbindung unterschiedlicher Metalle auf einfache Weise ermöglichen.The connection between the jacket and the metal foam core can also be an integral connection, for. B. adhesive connection or as a non-positive connection, z. B. shrink connection or as a combined material / non-positive connection. In the latter case, a glue - e.g. B. metal adhesive on the chemical basis of dimethacrylate ester [z. B. LOCTITE 574 (trade name of LOCTITE)] - coated metal foam core a z. B. heated coat put on. The coat is z. B. made of steel, the metal foam z. B. an aluminum foam. After the adhesive has cooled and hardened, it is very stable
Shrink / glue connection. Anaerobic adhesives are particularly suitable for this, as they allow a simple connection of different metals.

Bei all den beschriebenen Verbindungsarten muß gewährleistet sein, daß möglichst kein Spiel zwischen Mantel und Metallschaum-Kern vorhanden ist und entstehen kann.With all the types of connection described, it must be ensured that there is as little play as possible between the jacket and the metal foam core and that this can occur.

Claims (12)

  1. Process for producing rolls or cylinders for rotary operation, having a hollow shell and a core, characterized in that a metal-foam core, which is produced outside the shell and has already been foamed, is introduced into the interior of the shell and is secured to the inner surface of the shell in a force-transmitting manner.
  2. Process according to Claim 1, characterized in that the metal-foam core is secured, via its lateral surface, to the inner surface of the shell by means of a nonpositively locking connection.
  3. Process according to Claim 1, characterized in that the metal-foam core is secured, via its lateral surface, to the inner surface of the shell by means of a positively locking connection.
  4. Process according to Claim 1, characterized in that the metal-foam core is secured, via its lateral surface, to the inner surface of the shell by means of material-to-material bonding.
  5. Process according to claim 1, characterized in that the metal-foam core is secured, via its lateral surface, to the inner surface of the shell by means of combined positively locking connection and material-to-material bonding.
  6. Process according to Claim 4, characterized in that the metal-foam core and the hollow shell are joined by means of an adhesive bond.
  7. Process according to Claim 2, characterized in that the metal-foam core is introduced into the hollow shell by exploiting a temperature difference between the metal-foam core and the hollow shell.
  8. Roll or cylinder having a hollow shell and a core, characterized in that a metal-foam core which is produced outside the hollow shell is secured to the inner surface of the shell in a force-transmitting manner.
  9. Roll or cylinder according to Claim 8, characterized in that an inner surface of the hollow shell is at least partially joined to a lateral surface of the metal-foam core.
  10. Roll or cylinder according to Claim 9, characterized in that the inner surface of the hollow shell is completely joined to the lateral surface of the metal-foam core.
  11. Roll or cylinder according to Claims 8 to 10, characterized in that the metal-foam core fills the entire cross section of the hollow shell.
  12. Roll or cylinder according to Claims 8 to 11, characterized in that the roll or cylinder is used in a printing machine.
EP98962200A 1997-11-07 1998-11-03 Roll or cylinder with a metallic foam core Expired - Lifetime EP1028823B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19749228A DE19749228A1 (en) 1997-11-07 1997-11-07 Semi-finished product with a metal foam core
DE19749228 1997-11-07
PCT/DE1998/003200 WO1999024195A1 (en) 1997-11-07 1998-11-03 Semifinished product with a metallic foam core

Publications (2)

Publication Number Publication Date
EP1028823A1 EP1028823A1 (en) 2000-08-23
EP1028823B1 true EP1028823B1 (en) 2003-01-29

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP98962200A Expired - Lifetime EP1028823B1 (en) 1997-11-07 1998-11-03 Roll or cylinder with a metallic foam core

Country Status (7)

Country Link
US (2) US6484402B2 (en)
EP (1) EP1028823B1 (en)
JP (1) JP2001522978A (en)
CN (1) CN1108213C (en)
DE (2) DE19749228A1 (en)
ES (1) ES2190127T3 (en)
WO (1) WO1999024195A1 (en)

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DE202005021653U1 (en) * 2005-11-16 2009-02-26 Manroland Ag Cylinder of a printing press and storage device for this
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Also Published As

Publication number Publication date
US20030056372A1 (en) 2003-03-27
WO1999024195A1 (en) 1999-05-20
US20020055428A1 (en) 2002-05-09
DE19749228A1 (en) 1999-06-02
DE59807090D1 (en) 2003-03-06
CN1278753A (en) 2001-01-03
ES2190127T3 (en) 2003-07-16
US6484402B2 (en) 2002-11-26
EP1028823A1 (en) 2000-08-23
CN1108213C (en) 2003-05-14
US6827677B2 (en) 2004-12-07
JP2001522978A (en) 2001-11-20

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