DE4435856C1 - Compound pipe structure with inner fibre cpd. and outer metal pipes - Google Patents

Compound pipe structure with inner fibre cpd. and outer metal pipes

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Publication number
DE4435856C1
DE4435856C1 DE4435856A DE4435856A DE4435856C1 DE 4435856 C1 DE4435856 C1 DE 4435856C1 DE 4435856 A DE4435856 A DE 4435856A DE 4435856 A DE4435856 A DE 4435856A DE 4435856 C1 DE4435856 C1 DE 4435856C1
Authority
DE
Germany
Prior art keywords
tube
fiber composite
adhesive
gap
pipe
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 - Fee Related
Application number
DE4435856A
Other languages
German (de)
Inventor
Thomas Dr Baeumer
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.)
Urenco Deutschland GmbH
Original Assignee
Urenco Deutschland GmbH
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Filing date
Publication date
Application filed by Urenco Deutschland GmbH filed Critical Urenco Deutschland GmbH
Priority to DE4435856A priority Critical patent/DE4435856C1/en
Application granted granted Critical
Publication of DE4435856C1 publication Critical patent/DE4435856C1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00—Rigid pipes
    • F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/26—Lining or sheathing of internal surfaces
    • B29C63/34—Lining or sheathing of internal surfaces using tubular layers or sheathings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/52—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive
    • B29C65/54—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive between pre-assembled parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5227—Joining tubular articles for forming multi-tubular articles by longitudinally joining elementary tubular articles wall-to-wall (e.g. joining the wall of a first tubular article to the wall of a second tubular article) or for forming multilayer tubular articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • B29C66/5344—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially annular, i.e. of finite length, e.g. joining flanges to tube ends
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/61—Joining from or joining on the inside
    • B29C66/612—Making circumferential joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/721—Fibre-reinforced materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/74—Joining plastics material to non-plastics material
    • B29C66/742—Joining plastics material to non-plastics material to metals or their alloys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B1/00—Layered products having a non-planar shape
    • B32B1/08—Tubular products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J5/00—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers
    • C09J5/08—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers using foamed adhesives
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
    • F16L55/168—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe
    • F16L55/175—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe by using materials which fill a space around the pipe before hardening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/52—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive
    • B29C65/54—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive between pre-assembled parts
    • B29C65/542—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive between pre-assembled parts by injection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/721—Fibre-reinforced materials
    • B29C66/7212—Fibre-reinforced materials characterised by the composition of the fibres

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Laminated Bodies (AREA)

Abstract

In the prodn. of a compound fibre pipe, inserted into a metal pipe to give an outer metal surface, a gap (3) is left between the fibre pipe (1) and the metal pipe (2) for a viscous adhesive to be pressed in. The adhesive expands on setting.

Description

Die Erfindung betrifft ein Verfahren und eine Vorrichtung zum Herstellen eines Faserverbundrohres mit äußerer, metallischer Oberfläche nach dem Oberbegriff von Anspruch 1 bzw. Anspruch 4.The invention relates to a method and an apparatus for Manufacture of a fiber composite tube with an outer, metallic Surface according to the preamble of claim 1 or claim 4.

Verfahren zur Herstellung derartiger Rohre und ihre Vorteile gegenüber reinen Metallrohren, z. B. beim Einsatz als schnell­ drehende Walzen für Papier- und Druckmaschinen, sind in der EP 0 514 641 A1 beschrieben. Gattungsgemäße Verfahren sind in der EP 0 290 798 B1 beschrieben. Dabei wird ein Faserverbundrohr, dessen äußere Oberfläche klebfähig ist oder mit einem geson­ derten Kleber versehen wurde, in ein Metallrohr eingelegt oder eingeschoben, worauf das Faserverbundrohr in radialer Richtung gedehnt wird, um es gegen die Innenwand des Metallrohrs zu pressen. Während der Pressung, z. B. mittels eines in radialer Richtung dehnbaren Dorns, wird die klebfähige Oberfläche des Faserverbundrohrs gehärtet. Diese Methode setzt u. a. voraus, daß das Faserverbundrohr ohne Beeinträchtigung seiner mechani­ schen Eigenschaften radial aufgeweitet werden kann. Bei hoch­ festen, formstabilen Faserverbundrohren, die neben Helixwick­ lungen eine oder mehrere Schichten aus Umfangswicklungen auf­ weisen, ist diese Voraussetzung im allgemeinen nicht erfüllt.Process for the production of such pipes and their advantages compared to pure metal pipes, e.g. B. when used as fast rotating rollers for paper and printing machines are in the EP 0 514 641 A1. Generic methods are in the EP 0 290 798 B1. A fiber composite pipe, whose outer surface is adhesive or with a geson was provided in a metal tube or inserted, whereupon the fiber composite tube in the radial direction is stretched to it against the inner wall of the metal pipe press. During the pressing, e.g. B. by means of a radial Towards the stretchable mandrel, the adhesive surface of the Composite tube hardened. This method uses a. ahead, that the fiber composite pipe without affecting its mechani properties can be expanded radially. At high solid, dimensionally stable fiber composite tubes, which in addition to Helixwick lungs on one or more layers of peripheral windings point, this requirement is generally not met.

Die Erfindung hat zur Aufgabe, das gattungsgemäße Verfahren so zu verbessern, daß damit auch solche Faserverbundrohre, die sich nicht oder nicht ausreichend radial aufweiten lassen, fest und dauerhaft mit einem metallischen Hüllrohr verbunden werden können sowie eine zur Durchführung des Verfahrens geeignete Vorrichtung bereitzustellen.The invention has for its object the generic method so to improve that so that such fiber composite pipes cannot be expanded or cannot be expanded radially sufficiently, firmly and permanently connected with a metallic cladding tube can be as well as a suitable for performing the method To provide device.

Diese Aufgabe wird verfahrensmäßig mit den im Kennzeichen von Anspruch 1 ge­ nannten Maßnahmen gelöst. Die hierauf bezogenen Unteransprüche beinhalten vorteilhafte Ausgestaltungen dieser Lösung. Eine zur Durch­ führung des Verfahrens geeignete Vorrichtung ist im Anspruch 4 angegeben.This task is procedurally with the ge in the characterizing part of claim 1 mentioned measures solved. The related claims contain advantageous embodiments of this solution. One for through Implementation of the method suitable device is specified in claim 4.

Durch die erfindungsgemäße Vorgehensweise wird zwischen Faser­ verbundrohr und metallischem Hüllrohr eine gleichförmige Druckspannung aufgebaut, die eine dichte, unlösbare und form­ stabile Verbindung zwischen den beiden Rohren bewirkt.The procedure according to the invention distinguishes between fibers composite tube and metallic cladding tube a uniform  Compressive stress built up that is a dense, insoluble and form stable connection between the two pipes.

Ein Ausführungsbeispiel der Erfindung wird im folgenden anhand einer Zeichnung näher erläutert.An embodiment of the invention is described below a drawing explained in more detail.

Die Figur zeigt im Längsschnitt ein Faserverbundrohr 1 (FVK- Rohr) aus Kohlenstoffasern, die in ein Epoxidharz als Matrix­ material eingebettet sind. Die mit dem Epoxidharz getränkten Kohlenstoffasern werden in mehreren Schichten übereinanderge­ wickelt, wobei sich Schichten mit Helixwicklungen und Schich­ ten mit Umfangswicklungen abwechseln (nicht dargestellt). Das FVK-Rohr 1 wird auf einen Außendurchmesser mit einer Toleranz von wenigen zehntel Millimeter gewickelt und sodann mit einem Abreißgewebe versehen. Nach dem Aushärten des Matrixmaterials und unmittelbar vor dem Klebprozeß wird das Abreißgewebe ent­ fernt, so daß eine saubere und aktive äußere Oberfläche des FVK-Rohres 1 vorliegt. Sodann wird das FVK-Rohr 1 in ein Me­ tallrohr 2, z. B. aus rostfreiem Stahl, geschoben, dessen In­ nendurchmesser etwas größer ist als der Außendurchmesser des FVK-Rohres 1, so daß ein definierter Spalt 3 zwischen den bei­ den Rohren 1, 2 verbleibt. Anschließend werden die beiden Rohre zueinander zentriert und gegenseitig fixiert. Hierzu werden an den stirnseitigen Öffnungen der Rohre Zentrierstücke 4, 5 so eingepaßt, daß im Anschluß an den Spalt 3 Ringspalte 4a, 5a verbleiben. Die Zentrierstücke 4 und 5 sind in dem dar­ gestellten Beispiel gleichzeitig als Lagerschalen ausgebildet. Sie weisen drei in axialer Richtung abgestufte Außenmäntel 4c/5c, 4d/5d, 4e/5e auf. Mit den Mänteln 4c/5c sind sie von der Stirnseite her in das FVK-Rohr 1 eingeklebt. Die Zwischen­ mäntel 4d/5d sind dichtend in das Metallrohr 2 eingepaßt, das länger ist als das FVK-Rohr 1, so daß von den Zentrierstücken 4, 5 und den beiden Rohren 1, 2 je einer der beiden Ringspalte 4a bzw. 5a gebildet werden kann. Die Mäntel 4e/5e schließen bündig mit dem Außenmantel des Metallrohrs 2 ab. Ferner weist das Zentrierstück 4 mehrere, axiale Einspritzbohrungen 4b auf, die in den Ringspalt 4a ausmünden. Das Zentrierstück 5 ist in entsprechender Weise mit axialen Kontrollbohrungen 5b verse­ hen, die mit dem Ringspalt 5a in Verbindung stehen.The figure shows in longitudinal section a fiber composite pipe 1 (FRP pipe) made of carbon fibers, which are embedded in an epoxy resin as a matrix material. The carbon fibers impregnated with the epoxy resin are wound one above the other in several layers, layers with helical windings and layers with peripheral windings alternating (not shown). The FRP pipe 1 is wound to an outer diameter with a tolerance of a few tenths of a millimeter and then provided with a tear-off fabric. After the matrix material has hardened and immediately before the adhesive process, the tear-off fabric is removed, so that a clean and active outer surface of the FRP pipe 1 is present. Then the FRP pipe 1 in a tall pipe Me 2 , z. B. made of stainless steel, whose inner diameter is slightly larger than the outer diameter of the FRP pipe 1 , so that a defined gap 3 remains between the pipes 1 , 2 . Then the two pipes are centered and fixed to each other. For this purpose, centering pieces 4 , 5 are fitted at the end openings of the tubes so that 3 annular gaps 4 a, 5 a remain in connection with the gap. The centering pieces 4 and 5 are formed in the example presented at the same time as bearing shells. They have three outer shells 4 c / 5 c, 4 d / 5 d, 4 e / 5 e, graduated in the axial direction. With the coats 4 c / 5 c they are glued into the FRP pipe 1 from the front. The intermediate sheaths 4 d / 5 d are sealingly fitted into the metal tube 2 , which is longer than the FRP tube 1 , so that one of the two annular gaps 4 a or of the centering pieces 4 , 5 and the two tubes 1 , 2 each 5 a can be formed. The jackets 4 e / 5 e are flush with the outer jacket of the metal tube 2 . 4 also has the centering a plurality of axial injection holes 4 b, which open into the annular gap 4a. The centering piece 5 is hen in a corresponding manner with axial control holes 5 b, which are connected to the annular gap 5 a.

Durch die Einspritzbohrungen 4b wird von einer Seite (Pfeil A) her über den radialen Ringspalt 4a ein expandierender Kleb­ stoff in den Spalt 3 injiziert. Der Klebstoff, z. B. Expansi­ onsklebstoff oder Schaumharz, füllt den Spalt 3 zwischen den beiden Rohren 1, 2 vollständig und ohne Lufteinschlüsse aus, da durch die erwähnte Art des Klebstoff-Einpressens eine gleichmäßig fortschreitende Fließfront erzielt wird. Über die Kontrollbohrungen 5b im Zentrierstück 5 an der anderen Seite wird das Füllen des Spaltes 3 mit Klebstoff kontrolliert (Pfeil B). Bei der anschließenden Temperung versucht der Kleb­ stoff zu expandieren, wodurch über die Klebwirkung hinaus eine die beiden Rohre 1, 2 fest miteinander verbindende Druckspan­ nung entsteht, vergleichbar mit einem Preßsitz, der auch me­ chanischen und thermischen Belastungen widersteht.Through the injection bores 4 b, an expanding adhesive is injected into the gap 3 from one side (arrow A) via the radial annular gap 4 a. The adhesive, e.g. B. Expansi onsklebstoff or foam resin, fills the gap 3 between the two tubes 1 , 2 completely and without air pockets, since a uniformly progressive flow front is achieved by the aforementioned type of adhesive pressing. The filling of the gap 3 with adhesive is checked via the control bores 5 b in the centering piece 5 on the other side (arrow B). In the subsequent tempering, the adhesive tries to expand, which in addition to the adhesive effect creates a tight connection of the two pipes 1 , 2 pressure voltage, comparable to a press fit that also withstands mechanical and thermal loads.

Die Oberfläche des auf diese Weise mit dem FVK-Rohr 1 verbun­ denen Metallrohres 2 kann anschließend im Bedarfsfalle in kon­ ventioneller Weise bearbeitet, z. B. mit Rauten oder Rillen versehen werden, wie sie bei Walzen für Papiermaschinen ge­ bräuchlich sind. Die Bearbeitung der Oberfläche des Metallroh­ res 2 kann dabei so erfolgen, daß nur wenige zehntel Millime­ ter an Restwandstärke übrigbleiben. Man erhält dadurch ein Hy­ brid-Rohr, dessen Oberflächeneigenschaften denen eines reinen Metallrohres entsprechen, dessen mechanische Eigenschaften wie Formstabilität, Massenträgheitsmoment und Gewicht aber im we­ sentlichen durch das gegenüber einem reinen Metallrohr erheb­ lich leichtere FVK-Rohr bestimmt werden. Auch ist es möglich, auf die metallische Oberfläche einen Schutzbelag oder eine Reibschicht aufzubringen.The surface of the in this way with the FRP pipe 1 verbun which metal pipe 2 can then be processed in a conventional manner if necessary, for. B. be provided with diamonds or grooves, as are common in rollers for paper machines ge. The processing of the surface of the Metallroh res 2 can be done so that only a few tenths of a millimeter ter of residual wall thickness remain. This gives a hybrid tube, the surface properties of which correspond to those of a pure metal tube, but whose mechanical properties such as dimensional stability, moment of inertia and weight are essentially determined by the FRP tube, which is considerably lighter than a pure metal tube. It is also possible to apply a protective covering or a friction layer to the metallic surface.

BezugszeichenlisteReference list

1 Faserverbundrohr
2 Metallrohr
3 Spalt zwischen 1 und 2
4 Zentrierstück
4a Ringspalt
4b Einspritzbohrungen
4c, 4d, 4e in axialer Richtung abgestufte, zylindrische äußere Mantelflächen von 4
5 Zentrierstück
5a Ringspalt
5b Kontrollbohrungen
5c, 5d, 5e in axialer Richtung abgestufte, zylindrische äußere Mantelflächen von 5 1 fiber composite pipe
2 metal tube
3 gap between 1 and 2
4 centering piece
4 a annular gap
4 b injection holes
4 c, 4 d, 4 e axially stepped cylindrical outer surfaces of 4
5 centering piece
5 a annular gap
5 b control holes
5 c, 5 d, 5 e stepped cylindrical outer lateral surfaces of 5 in the axial direction

Claims (4)

1. Verfahren zum Herstellen eines Faserverbundrohres mit äuße­ rer, metallischer Oberfläche, bei dem das Faserverbundrohr in ein Metallrohr eingeschoben und mit letzterem verklebt wird,
dadurch gekennzeichnet, daß
  • a) zwischen Faserverbundrohr (1) und Metallrohr (2) ein Spalt (3) belassen wird, und daß
  • b) in den Spalt (3) ein fließfähiger Klebstoff eingepreßt wird, der beim Aushärten expandiert.
1. A method for producing a fiber composite tube with an outer metallic surface, in which the fiber composite tube is inserted into a metal tube and glued to the latter,
characterized in that
  • a) between the fiber composite pipe ( 1 ) and metal pipe ( 2 ) a gap ( 3 ) is left, and that
  • b) a flowable adhesive is pressed into the gap ( 3 ) and expands during curing.
2. Verfahren nach Anspruch 1, gekennzeichnet durch die Verwen­ dung eines Klebstoffs, der unter der Bezeichnung "Expansi­ onsklebstoff" oder "Schaumharz" erhältlich ist.2. The method according to claim 1, characterized by the use an adhesive that is sold under the name "Expansi on adhesive "or" foam resin "is available. 3. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß das Faserverbundrohr (1) und das Metallrohr (2) vor dem Ein­ pressen des Klebstoffes zueinander zentriert werden.3. The method according to claim 1, characterized in that the fiber composite tube ( 1 ) and the metal tube ( 2 ) are centered on each other before pressing the adhesive. 4. Vorrichtung zur Durchführung des Verfahrens nach Anspruch 1 bis 3, gekennzeichnet durch zwei Zentrierstücke (4, 5), die jeweils mit abgestuften Mantelflächen (4c, 4d bzw. 5c, 5d) in die stirnseitigen Enden der beiden Rohre (1, 2) einge­ paßt sind, wobei das Metallrohr (2) etwas länger bemessen ist als das Faserverbundrohr (1) und wobei die in das Me­ tallrohr (2) eingepaßten Mantelflächen (4d bzw. 5d) je an einen von den Zentrierstücken (4, 5) und den beiden Rohren (1, 2) gebildeten Ringspalt (4a bzw. 5a) angrenzen, der auf einer Stirnseite mit dem Spalt (3) und auf der anderen Stirnseite mit axialen Einspritzbohrungen (4b) bzw. Kon­ trollbohrungen (5b) in den Zentrierstücken (4, 5) in Ver­ bindung steht.4. An apparatus for performing the method according to claim 1 to 3, characterized by two centering pieces ( 4 , 5 ), each with stepped lateral surfaces ( 4 c, 4 d and 5 c, 5 d) in the front ends of the two tubes ( 1 , 2 ) are fitted, the metal tube ( 2 ) being dimensioned somewhat longer than the fiber composite tube ( 1 ) and the in the tall tube Me ( 2 ) fitted jacket surfaces ( 4 d and 5 d) each on one of the centering pieces ( 4 , 5 ) and the two tubes ( 1 , 2 ) formed by the annular gap ( 4 a or 5 a), which on one end face with the gap ( 3 ) and on the other end face with axial injection bores ( 4 b) or Control bores ( 5 b) in the centering pieces ( 4 , 5 ) is in connection.
DE4435856A 1994-10-07 1994-10-07 Compound pipe structure with inner fibre cpd. and outer metal pipes Expired - Fee Related DE4435856C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE4435856A DE4435856C1 (en) 1994-10-07 1994-10-07 Compound pipe structure with inner fibre cpd. and outer metal pipes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4435856A DE4435856C1 (en) 1994-10-07 1994-10-07 Compound pipe structure with inner fibre cpd. and outer metal pipes

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DE4435856C1 true DE4435856C1 (en) 1995-11-23

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19815742A1 (en) * 1998-04-08 1999-10-14 Bayerische Motoren Werke Ag Bearing element, especially a plain bearing bush, is adhesive bonded into a machine element opening especially the bearing eyelet of a connecting rod
EP1031747A3 (en) * 1999-02-23 2000-12-27 Matsui Universal Joint Corporation Driving Shaft and method for producing the same
DE10348820B3 (en) * 2003-10-14 2004-08-26 Ima Materialforschung Und Anwendungstechnik Gmbh Multi-layer pipe, with layers of different characteristics for particle accelerators or cryostats, has an inner pipe at a gap from an outer pipe for an adhesive to be injected into the gap under pressure
DE102007049624A1 (en) * 2007-10-17 2009-04-23 Schütze GmbH & Co. KG Compression test bar has an additional fiber-reinforced rod to increase its bendability

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0514641A1 (en) * 1991-05-22 1992-11-25 SIGRI GREAT LAKES CARBON GmbH Method for coating a fiber-reinforced plastic body
EP0290798B1 (en) * 1987-05-13 1993-06-09 SIGRI GREAT LAKES CARBON GmbH Method of manufacturing a metal-coated fibre-reinforced tube of plastics

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0290798B1 (en) * 1987-05-13 1993-06-09 SIGRI GREAT LAKES CARBON GmbH Method of manufacturing a metal-coated fibre-reinforced tube of plastics
EP0514641A1 (en) * 1991-05-22 1992-11-25 SIGRI GREAT LAKES CARBON GmbH Method for coating a fiber-reinforced plastic body

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19815742A1 (en) * 1998-04-08 1999-10-14 Bayerische Motoren Werke Ag Bearing element, especially a plain bearing bush, is adhesive bonded into a machine element opening especially the bearing eyelet of a connecting rod
DE19815742B4 (en) * 1998-04-08 2005-12-15 Bayerische Motoren Werke Ag Method for glued arrangement of a bearing element in an opening of a machine part, in particular connecting rod
EP1031747A3 (en) * 1999-02-23 2000-12-27 Matsui Universal Joint Corporation Driving Shaft and method for producing the same
DE10348820B3 (en) * 2003-10-14 2004-08-26 Ima Materialforschung Und Anwendungstechnik Gmbh Multi-layer pipe, with layers of different characteristics for particle accelerators or cryostats, has an inner pipe at a gap from an outer pipe for an adhesive to be injected into the gap under pressure
DE102007049624A1 (en) * 2007-10-17 2009-04-23 Schütze GmbH & Co. KG Compression test bar has an additional fiber-reinforced rod to increase its bendability
DE102007049624B4 (en) * 2007-10-17 2017-12-07 Schütze GmbH & Co. KG Light pressure bar with additional stiffening layer

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