WO1999063154A1 - Shell for a nip roll - Google Patents

Shell for a nip roll Download PDF

Info

Publication number
WO1999063154A1
WO1999063154A1 PCT/FI1999/000439 FI9900439W WO9963154A1 WO 1999063154 A1 WO1999063154 A1 WO 1999063154A1 FI 9900439 W FI9900439 W FI 9900439W WO 9963154 A1 WO9963154 A1 WO 9963154A1
Authority
WO
WIPO (PCT)
Prior art keywords
shell
fibers
composite
depthwise
nip roll
Prior art date
Application number
PCT/FI1999/000439
Other languages
French (fr)
Inventor
Juha ISOMETSÄ
Original Assignee
Valmet Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Valmet Corporation filed Critical Valmet Corporation
Priority to DE29923926U priority Critical patent/DE29923926U1/en
Priority to AU42684/99A priority patent/AU4268499A/en
Publication of WO1999063154A1 publication Critical patent/WO1999063154A1/en

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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C13/00—Rolls, drums, discs, or the like; Bearings or mountings therefor
    • F16C13/02—Bearings
    • F16C13/022—Bearings supporting a hollow roll mantle rotating with respect to a yoke or axle
    • F16C13/024—Bearings supporting a hollow roll mantle rotating with respect to a yoke or axle adjustable for positioning, e.g. radial movable bearings for controlling the deflection along the length of the roll mantle
    • F16C13/026—Bearings supporting a hollow roll mantle rotating with respect to a yoke or axle adjustable for positioning, e.g. radial movable bearings for controlling the deflection along the length of the roll mantle by fluid pressure
    • F16C13/028—Bearings supporting a hollow roll mantle rotating with respect to a yoke or axle adjustable for positioning, e.g. radial movable bearings for controlling the deflection along the length of the roll mantle by fluid pressure with a plurality of supports along the length of the roll mantle, e.g. hydraulic jacks
    • 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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/06—Fibrous reinforcements only
    • B29C70/08—Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, and with or without non-reinforced layers
    • B29C70/081—Combinations of fibres of continuous or substantial length and short fibres
    • 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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/06—Fibrous reinforcements only
    • B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
    • B29C70/16—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length
    • B29C70/24—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length oriented in at least three directions forming a three dimensional structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/20—Corrugating; Corrugating combined with laminating to other layers
    • B31F1/24—Making webs in which the channel of each corrugation is transverse to the web feed
    • B31F1/26—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions
    • B31F1/28—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions combined with uniting the corrugated webs to flat webs ; Making double-faced corrugated cardboard
    • B31F1/2845—Details, e.g. provisions for drying, moistening, pressing
    • B31F1/2877—Pressing means for bringing facer sheet and corrugated webs into contact or keeping them in contact, e.g. rolls, belts
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F3/00—Press section of machines for making continuous webs of paper
    • D21F3/02—Wet presses
    • D21F3/08—Pressure rolls
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00—Calenders; Smoothing apparatus
    • D21G1/02—Rolls; Their bearings
    • D21G1/0206—Controlled deflection rolls
    • D21G1/0213—Controlled deflection rolls with deflection compensation means acting between the roller shell and its supporting member
    • D21G1/022—Controlled deflection rolls with deflection compensation means acting between the roller shell and its supporting member the means using fluid pressure
    • 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

Definitions

  • the present invention relates to a composite shell for a nip roll in a paper/board or finishing or converting machine, comprising a plurality of fiber layers extending lengthwise and/or circumferentially of the shell.
  • the invention relates also to a method for manufacturing a composite shell for a nip roll in a paper/board or finishing or converting machine, comprising a polymeric matrix material and a plurality of fiber layers extending lengthwise and/or circumferentially of the shell.
  • the invention relates further to a method for manufacturing a composite shell (1 ) for a nip roll in a paper/board or finishing or converting machine, comprising reinforcing fibers and a matrix material of ceramics.
  • the term composite refers to a structure which comprises reinforcing fibers, e.g. carbon, boric or glass fibers or mixtures thereof, and a matrix material which can be polymeric, ceramic or metallic.
  • the ceramic material comprises various oxides and carbides, such as e.g. AI-, B-, Cr-, Ti-, Si-, Sn-, W-, Zn-, Zr-oxides and - carbides and mixtures thereof, as well as various nitrides, such as e.g. BN and Si 3 N 4 .
  • a composite shell for a nip roll comprising a plurality of divergent fiber layers, is prior known in the field, e.g. from the patent publication FI 100264.
  • the strength thereof has been attempted to be enhanced by different orientations of fibers constituting the fiber layers in the axial direction of the roll or in divergent directions along the circumference.
  • One problem in conventional composite shells in connection with nip rolls is the exposure thereof to local bending stresses, resulting in problems in terms of strength. Such a local bending stress may lead e.g. to the peeling of fiber layers which constitute the composite shell.
  • an object of the present invention is to provide such a nip roll shell which has an increased strength in the depthwise direction in addition to an axial and circumferential strength.
  • a nip roll composite shell of the invention is characterized in that the shell is provided with means, extending at least partially in its depthwise direction and existing within the shell material and providing a depthwise reinforcement for the shell.
  • a method of the invention for manufacturing a composite shell for a nip roll, comprising a polymeric matrix material and a plurality of fiber layers extending essentially lengthwise and/or circumferentially of the shell, is characterized in that the fibers used in the method for building the fiber layers are dipped in a resin admixed with short fibers, which in a finished shell provide the shell with an increased depthwise strength.
  • a method according to another aspect of the invention for manufacturing a composite shell for a nip roll in a paper/board or finishing machine, comprising reinforcing fibers and a substantially integral matrix material of ceramics is in turn characterized in that the method involves first the manufacturing of a three-dimensional fiber structure affording an added depthwise strength and the matrix material is introduced by thermal processes, such as a thermal injection, as a plasma vapour into the fiber structure for producing an integral matrix.
  • fig. 1 shows a nip roll in a schematic sectional view
  • figs. 2-5 show a few exemplary embodiments for a nip roll shell of the invention in cross-sectionally taken schematic partial views.
  • Fig. 1 depicts one embodiment for a nip roll 10, wherein a stationary central axle 12 is provided with loading shoes 11 loading a shell 1 in the nip direction.
  • the shell is made of a composite material.
  • Fig. 2 shows in a cross-sectionally taken enlarged partial view a composite shell 1 constructed in a normal fashion from continuous-strand reinforcing fibers 3, e.g. carbon fibers, and a polymeric matrix material, in the manufacture of which the resin used for bonding the reinforcing fibers 3 is admixed with short fibers 2, at least some of which extend, as far as a finished shell is concerned, depthwise of the shell providing an added depthwise strength for the shell wall.
  • the fibers 3 used for fabricating the fiber layers are dipped in a resin, e.g. epoxy resin, which is admixed with short fibers, e.g. carbon fibers, whereby, after the resin is set, said short fibers provide an increased depthwise strength for the finished shell.
  • a resin e.g. epoxy resin
  • Fig. 3 shows a cross-sectionally taken enlarged partial view of a nip roll composite shell 1 , including lengthwise fibers 5, transverse fibers 3, and rectangularly waving fibers 4, bonding the discussed lengthwise and transverse fibers and building a three-dimensional fiber structure and extending at least principally in the depthwise direction of the wall of the shell 1 (an arrow S).
  • Figs. 4-5 show a cross-sectionally taken enlarged partial view of a nip roll composite shell 1 , including lengthwise fibers 5 and fibers 4, constituting together with the discussed lengthwise fibers a three-dimensional fiber structure and extending in a wavelike or serrated pattern and being placed at least partially in the depthwise direction of the shell 1.
  • the wavelike or serrated fibers 4 provide a finished shell with a strength depthwise of the shell after the setting of a resin or a ceramic material used for bonding the fibers.
  • the reinforced fiber structure is first formed e.g. on top of a mould and the matrix is introduced by thermal processes, such as a thermal injection, as a plasma vapour into the fiber structure for producing an integral matrix and resulting in a so-called ceramic composite.
  • the term "at least partially depthwise of the shell” refers to the direction which extends through the wall of a shell in the radial direction of a roll, the arrow S in figs. 3-5, or diagonally relative thereto.
  • a composite structure described above in reference to figs. 2-5 are also conceivable to be implemented as various combinations thereof, wherein the depthwise dimension of a shell comprises layers of various composite structures.
  • One such combination can be for example a base layer wound from continuous-strand reinforcing fibers, having its inner and/or outer surface provided with a three-dimensional fiber structure.
  • various matrix materials in various depthwise locations of a shell, whereby, for example, the layer constituting the inner surface can be provided with a polymeric matrix material and the layer constituting the outer surface with a ceramic material.

Abstract

The invention relates to a composite shell (1) for a nip roll in a paper/roll or finishing machine and to a method for manufacturing a composite shell. The shell (1) is provided with means (2, 4), extending at least partially in its depthwise direction and existing within the shell material and providing a depthwise reinforcement for the shell. The means are constituted by partial fiber lengths (4) and/or short fibers (2), extending at least partially depthwise of the shell.

Description

Shell for a nip roll
The present invention relates to a composite shell for a nip roll in a paper/board or finishing or converting machine, comprising a plurality of fiber layers extending lengthwise and/or circumferentially of the shell. The invention relates also to a method for manufacturing a composite shell for a nip roll in a paper/board or finishing or converting machine, comprising a polymeric matrix material and a plurality of fiber layers extending lengthwise and/or circumferentially of the shell. The invention relates further to a method for manufacturing a composite shell (1 ) for a nip roll in a paper/board or finishing or converting machine, comprising reinforcing fibers and a matrix material of ceramics.
The term composite refers to a structure which comprises reinforcing fibers, e.g. carbon, boric or glass fibers or mixtures thereof, and a matrix material which can be polymeric, ceramic or metallic. The ceramic material comprises various oxides and carbides, such as e.g. AI-, B-, Cr-, Ti-, Si-, Sn-, W-, Zn-, Zr-oxides and - carbides and mixtures thereof, as well as various nitrides, such as e.g. BN and Si3N4.
A composite shell for a nip roll, comprising a plurality of divergent fiber layers, is prior known in the field, e.g. from the patent publication FI 100264. Regarding the prior art composite shells for nip rolls, the strength thereof has been attempted to be enhanced by different orientations of fibers constituting the fiber layers in the axial direction of the roll or in divergent directions along the circumference. One problem in conventional composite shells in connection with nip rolls is the exposure thereof to local bending stresses, resulting in problems in terms of strength. Such a local bending stress may lead e.g. to the peeling of fiber layers which constitute the composite shell. Thus, an object of the present invention is to provide such a nip roll shell which has an increased strength in the depthwise direction in addition to an axial and circumferential strength. In order to achieve this object, a nip roll composite shell of the invention is characterized in that the shell is provided with means, extending at least partially in its depthwise direction and existing within the shell material and providing a depthwise reinforcement for the shell.
A method of the invention for manufacturing a composite shell for a nip roll, comprising a polymeric matrix material and a plurality of fiber layers extending essentially lengthwise and/or circumferentially of the shell, is characterized in that the fibers used in the method for building the fiber layers are dipped in a resin admixed with short fibers, which in a finished shell provide the shell with an increased depthwise strength. A method according to another aspect of the invention for manufacturing a composite shell for a nip roll in a paper/board or finishing machine, comprising reinforcing fibers and a substantially integral matrix material of ceramics, is in turn characterized in that the method involves first the manufacturing of a three-dimensional fiber structure affording an added depthwise strength and the matrix material is introduced by thermal processes, such as a thermal injection, as a plasma vapour into the fiber structure for producing an integral matrix.
The invention will now be described in more detail with reference to the accompanying drawings, in which:
fig. 1 shows a nip roll in a schematic sectional view, and
figs. 2-5 show a few exemplary embodiments for a nip roll shell of the invention in cross-sectionally taken schematic partial views.
Fig. 1 depicts one embodiment for a nip roll 10, wherein a stationary central axle 12 is provided with loading shoes 11 loading a shell 1 in the nip direction. The shell is made of a composite material.
Fig. 2 shows in a cross-sectionally taken enlarged partial view a composite shell 1 constructed in a normal fashion from continuous-strand reinforcing fibers 3, e.g. carbon fibers, and a polymeric matrix material, in the manufacture of which the resin used for bonding the reinforcing fibers 3 is admixed with short fibers 2, at least some of which extend, as far as a finished shell is concerned, depthwise of the shell providing an added depthwise strength for the shell wall. In the manufacture of a composite shell as shown in fig. 2, the fibers 3 used for fabricating the fiber layers are dipped in a resin, e.g. epoxy resin, which is admixed with short fibers, e.g. carbon fibers, whereby, after the resin is set, said short fibers provide an increased depthwise strength for the finished shell.
Fig. 3 shows a cross-sectionally taken enlarged partial view of a nip roll composite shell 1 , including lengthwise fibers 5, transverse fibers 3, and rectangularly waving fibers 4, bonding the discussed lengthwise and transverse fibers and building a three-dimensional fiber structure and extending at least principally in the depthwise direction of the wall of the shell 1 (an arrow S).
Figs. 4-5 show a cross-sectionally taken enlarged partial view of a nip roll composite shell 1 , including lengthwise fibers 5 and fibers 4, constituting together with the discussed lengthwise fibers a three-dimensional fiber structure and extending in a wavelike or serrated pattern and being placed at least partially in the depthwise direction of the shell 1. The wavelike or serrated fibers 4 provide a finished shell with a strength depthwise of the shell after the setting of a resin or a ceramic material used for bonding the fibers. When using a ceramic matrix, the reinforced fiber structure is first formed e.g. on top of a mould and the matrix is introduced by thermal processes, such as a thermal injection, as a plasma vapour into the fiber structure for producing an integral matrix and resulting in a so-called ceramic composite.
In this application, the term "at least partially depthwise of the shell" refers to the direction which extends through the wall of a shell in the radial direction of a roll, the arrow S in figs. 3-5, or diagonally relative thereto.
The various embodiments for a composite structure described above in reference to figs. 2-5 are also conceivable to be implemented as various combinations thereof, wherein the depthwise dimension of a shell comprises layers of various composite structures. One such combination can be for example a base layer wound from continuous-strand reinforcing fibers, having its inner and/or outer surface provided with a three-dimensional fiber structure. In addition to the fiber structure, it is also possible to employ various matrix materials in various depthwise locations of a shell, whereby, for example, the layer constituting the inner surface can be provided with a polymeric matrix material and the layer constituting the outer surface with a ceramic material.

Claims

Claims
1. A composite shell (1 ) for a nip roll in a paper/board or finishing or converting machine, comprising a plurality of fiber layers (3) extending lengthwise and/or circumferentially of the shell, characterized in that the shell (1 ) is provided with means (2, 4), extending at least partially in its depthwise direction and existing within the shell material and providing a depthwise reinforcement for the shell.
2. A composite shell as set forth in claim 1 , characterized in that said means are constituted by partial fiber lengths (4) and/or short fibers (2), extending at least partially depthwise of the shell.
3. A composite shell as set forth in claim 2, characterized in that the fibers of a composite structure provide a three-dimensional fiber structure at over a part of the shell depth, and that said partial lengths are constituted by the fibers (4), included in said fiber structure and extending at least partially depthwise of the shell.
4. A composite shell as set forth in claim 2, characterized in that said short fibers are admixed in a resin used for bonding the long fibers which constitute the fiber layers.
5. A composite shell as set forth in any of claims 1-4, characterized in that the matrix material bonding the fibers of a composite structure is constituted in the depthwise direction of the shell by at least two layers bonded integrally to each other and consisting of materials different from each other.
6. A method for manufacturing a composite shell (1) for a nip roll in a paper/board or finishing or converting machine, comprising a polymeric matrix material and a plurality of fiber layers (3) extending lengthwise and/or circumferentially of the shell, characterized in that the fibers (3) used in the method for building the fiber layers are dipped in a resin admixed with short fibers, which in a finished shell provide the shell with an increased depthwise strength.
7. A method for manufacturing a composite shell (1 ) for a nip roll in a paper/board or finishing machine, comprising reinforcing fibers and an essentially integral matrix material of ceramics or a metal, characterized in that the method involves first the manufacturing of a three-dimensional reinforced fiber structure and the matrix material is introduced by thermal processes, such as a thermal injection, as a plasma vapour into the fiber structure for producing an integral matrix.
PCT/FI1999/000439 1998-06-02 1999-05-21 Shell for a nip roll WO1999063154A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE29923926U DE29923926U1 (en) 1998-06-02 1999-05-21 Jacket for a squeeze roller
AU42684/99A AU4268499A (en) 1998-06-02 1999-05-21 Shell for a nip roll

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI981240 1998-06-02
FI981240A FI103740B1 (en) 1998-06-02 1998-06-02 Nipple roll diaper

Publications (1)

Publication Number Publication Date
WO1999063154A1 true WO1999063154A1 (en) 1999-12-09

Family

ID=8551876

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI1999/000439 WO1999063154A1 (en) 1998-06-02 1999-05-21 Shell for a nip roll

Country Status (4)

Country Link
AU (1) AU4268499A (en)
DE (1) DE29923926U1 (en)
FI (1) FI103740B1 (en)
WO (1) WO1999063154A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1057929A2 (en) * 1999-06-02 2000-12-06 Voith Sulzer Papiertechnik Patent GmbH Soft roll and process for making such a roll
WO2001016424A1 (en) * 1999-08-27 2001-03-08 Metso Paper, Inc. Shoe roll

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008035540A1 (en) * 2008-07-30 2010-02-04 Voith Patent Gmbh Press roller arrangement for use during smoothing of fibrous material webs, has supporting elements supplied with pressure fluid by hydraulic pump unit, where large part of elements is subjected with pressure by pump unit
DE102013216437A1 (en) * 2013-08-20 2015-02-26 Voith Patent Gmbh Use of fiber-ceramic composites in the paper machine

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US3707752A (en) * 1970-10-28 1973-01-02 Beloit Corp Roll covering
US3788935A (en) * 1970-05-27 1974-01-29 Gen Technologies Corp High shear-strength fiber-reinforced composite body
US4368568A (en) * 1979-08-10 1983-01-18 Yamauchi Rubber Industry Co., Ltd. Elastomeric material covered rolls and a method of making the same
US4472541A (en) * 1982-10-01 1984-09-18 The Bendix Corporation Secondary matrix reinforcement using carbon microfibers
EP0358804A1 (en) * 1987-02-25 1990-03-21 General Electric Company RF plasma method of forming multilayer reinforced composites
EP0363887A2 (en) * 1988-10-11 1990-04-18 Mitsubishi Rayon Co., Ltd. Roll formed of carbon fiber composite material
EP0433507A1 (en) * 1987-10-29 1991-06-26 Exxon Research And Engineering Company Producing isotropically reinforced net-shape microcomposites
US5153057A (en) * 1989-02-15 1992-10-06 Technical Ceramics Laboratories, Inc. Shaped bodies containing short inorganic fibers or whiskers within a metal matrix
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FR2692829A1 (en) * 1992-06-29 1993-12-31 Aerospatiale Fabrication of a component from a composite material - with an intermetallic matrix possessing a low temperature eutectic or peritectic reaction
WO1994009208A1 (en) * 1992-10-16 1994-04-28 Beloit Technologies, Inc. A method of manufacturing a cover for a press roll

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US3788935A (en) * 1970-05-27 1974-01-29 Gen Technologies Corp High shear-strength fiber-reinforced composite body
US3707752A (en) * 1970-10-28 1973-01-02 Beloit Corp Roll covering
US4368568A (en) * 1979-08-10 1983-01-18 Yamauchi Rubber Industry Co., Ltd. Elastomeric material covered rolls and a method of making the same
US4472541A (en) * 1982-10-01 1984-09-18 The Bendix Corporation Secondary matrix reinforcement using carbon microfibers
EP0358804A1 (en) * 1987-02-25 1990-03-21 General Electric Company RF plasma method of forming multilayer reinforced composites
EP0433507A1 (en) * 1987-10-29 1991-06-26 Exxon Research And Engineering Company Producing isotropically reinforced net-shape microcomposites
US5188776A (en) * 1988-08-15 1993-02-23 Exxon Research And Engineering Company Ceramic microtubular materials and method of making same
EP0363887A2 (en) * 1988-10-11 1990-04-18 Mitsubishi Rayon Co., Ltd. Roll formed of carbon fiber composite material
US5153057A (en) * 1989-02-15 1992-10-06 Technical Ceramics Laboratories, Inc. Shaped bodies containing short inorganic fibers or whiskers within a metal matrix
FR2692829A1 (en) * 1992-06-29 1993-12-31 Aerospatiale Fabrication of a component from a composite material - with an intermetallic matrix possessing a low temperature eutectic or peritectic reaction
WO1994009208A1 (en) * 1992-10-16 1994-04-28 Beloit Technologies, Inc. A method of manufacturing a cover for a press roll

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1057929A2 (en) * 1999-06-02 2000-12-06 Voith Sulzer Papiertechnik Patent GmbH Soft roll and process for making such a roll
EP1057929A3 (en) * 1999-06-02 2001-11-21 Voith Paper Patent GmbH Soft roll and process for making such a roll
US6520897B1 (en) 1999-06-02 2003-02-18 Voith Sulzer Papiertechnik Patent Gmbh Resilient roll and process for producing such a roll
WO2001016424A1 (en) * 1999-08-27 2001-03-08 Metso Paper, Inc. Shoe roll
US6997106B1 (en) 1999-08-27 2006-02-14 Metso Paper, Inc. Shoe roll

Also Published As

Publication number Publication date
AU4268499A (en) 1999-12-20
DE29923926U1 (en) 2001-06-21
FI981240A0 (en) 1998-06-02
FI103740B (en) 1999-08-31
FI103740B1 (en) 1999-08-31
FI981240A (en) 1999-08-31

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