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EP1041198B2 - Rouleau élastique et procédé de fabrication d' un tel rouleau - Google Patents
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EP1041198B2 - Rouleau élastique et procédé de fabrication d' un tel rouleau - Google Patents

Rouleau élastique et procédé de fabrication d' un tel rouleau Download PDF

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Publication number
EP1041198B2
EP1041198B2 EP00105583A EP00105583A EP1041198B2 EP 1041198 B2 EP1041198 B2 EP 1041198B2 EP 00105583 A EP00105583 A EP 00105583A EP 00105583 A EP00105583 A EP 00105583A EP 1041198 B2 EP1041198 B2 EP 1041198B2
Authority
EP
European Patent Office
Prior art keywords
roll
matrix material
roller
elastic
fibres
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
EP00105583A
Other languages
German (de)
English (en)
Other versions
EP1041198A1 (fr
EP1041198B1 (fr
Inventor
Carsten Sohl
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.)
Voith Patent GmbH
Original Assignee
Voith Patent GmbH
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7903146&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1041198(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Voith Patent GmbH filed Critical Voith Patent GmbH
Publication of EP1041198A1 publication Critical patent/EP1041198A1/fr
Application granted granted Critical
Publication of EP1041198B1 publication Critical patent/EP1041198B1/fr
Publication of EP1041198B2 publication Critical patent/EP1041198B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • D21G1/0233—Soft rolls

Definitions

  • the present invention relates to a roll, in particular for smoothing paper webs, comprising a hard roll core, in particular made of metal, which is provided on its outside with an elastic covering layer consisting of an elastic matrix material and fibers embedded in the matrix material. Furthermore, the invention is directed to a method for producing such a roller.
  • Elastic rolls of this type are used, for example, in the calendering of paper webs.
  • an elastic roller together with a hard roller forms a press nip through which the paper web to be processed is passed.
  • the hard roller has an existing example of steel or chilled casting very smooth surface and is responsible for the smoothing of their facing side of the paper web, acting on the opposite side of the paper web elastic roller causes a homogenization and densification of the paper web in Preßnip.
  • the elasticity of this second roller thus prevents excessive compaction of the paper web, which would lead to a greasy appearance of the paper web.
  • the order of magnitude of the rolls is in lengths of 6 to 12 m or diameters of 800 to 1500 mm. They withstand line forces of up to 600 N / mm and compressive stresses of up to 50 N / mm 2 .
  • the plastics commonly used for the coating have a significantly higher coefficient of thermal expansion than the steel rollers or chill rolls commonly used, so that a high temperature increase axial stresses between the steel roller or chill roller and the associated plastic coating occur.
  • hot spots may occur at which detachment or even bursting of the plastic layer takes place.
  • the elastic cover layer consists of a plurality of layers, wherein in each case an unreinforced layer alternately follows a fiber-reinforced layer.
  • the elastic covering layer consists of a radially inner, fiber-reinforced layer and a radially outer, unreinforced elastic layer. Also in the US 3,490,119 a roller having such a structure of the reference layer is described.
  • the cover layer consists of a plurality of different, fiber-reinforced layers, wherein the successive, individual fiber layers each include different angles with the longitudinal axis of the roller body.
  • roller of the relevant part of the task is achieved by the features of claim 1.
  • a corresponding method according to the invention is specified in claim 4.
  • the reference layer has a thermal expansion coefficient, which is also different according to the fiber content in the radial direction from the inside out. Since usually the matrix material has a significantly higher coefficient of thermal expansion than the fiber material used, the respective resulting coefficient of thermal expansion of the fiber-interspersed matrix material thus depends both on the thermal expansion coefficient of the matrix material and that of the fibers. The more fibers that are embedded in the matrix material, the more the resulting coefficient of thermal expansion equals the thermal expansion coefficient of the fibers used.
  • the fiber content in the radially outward regions of the cover layer must be chosen to be lower, otherwise the surface of the roller would be too hard and unsuitable for santinage.
  • the fiber content in the radially outer region of the reference layer is substantially equal to zero. This ensures that the surface of the roller is as elastic as possible and after a corresponding Abschleifvorgang has a very smooth surface, since the fibers present in the reference layer do not reach to the surface of the cover layer. Furthermore, it is ensured in this way that the surface of the roller can be reground after a certain period of time, without the fibers present in the matrix material after the grinding process at the surface of the cover layer emerge from this and thereby reduce the smoothness of the surface.
  • the nip width can also be set as required. Since, in a roller with a very elastic coating, the hard counter-roller presses more deeply into the soft covering of the elastic roller, the width of the nip in the direction of travel of the paper web becomes greater the more elastic the outside of the covering layer of the elastic roller is. Thus, by setting a certain fiber content profile and in particular a certain fiber content at the surface of the reference layer, a desired nip width can be generated.
  • Fig. 1 shows a part of a longitudinally cut, for example made of steel roller core 1, which is provided on its outside with an elastic cover layer 2 also shown cut.
  • the cover layer 2 consists of an elastic matrix material 3, in particular a resin / hardener combination, in which a plurality of fibers 4 are embedded.
  • the fibers 4 may be, for example, carbon fibers or glass fibers or a mixture of carbon and glass fibers.
  • the rigidity of the reference layer 2 is increased compared to a reference layer made of pure plastic and at the same time, especially when using carbon fibers, the thermal conductivity is improved.
  • the fiber content in the radially inner region 5 of the reference layer 2 is significantly higher than in its radially outward region 6. This ensures that the reference layer 2 is more elastic in its radially outward region 6 than in its radially inner region. 5 so that, for example, in the interaction of the elastic roller with a hard roller, this hard roller relatively far presses into the elastic outer surface of the reference layer 2, whereby a circumferentially long press nip is formed.
  • the thermal expansion coefficient of the cover layer 2 is also significantly influenced by the fibers 4. Since the metallic roll core 1 usually has a significantly lower coefficient of thermal expansion than the matrix material 3, the matrix material 3 expands significantly more than the roll core 1 with a corresponding heating in the axial direction. By adding the fibers 4, their coefficient of thermal expansion is of the order of magnitude of the thermal expansion coefficient of the roll core 1, it is achieved that in the region 5 of the reference layer 2, which has a high fiber content, the resulting coefficient of thermal expansion is similar to that of the roll core 1. As a result, with a corresponding heating, the region 5 expands in the axial direction by a similar value as the roller core 1, so that axially occurring longitudinal stresses are largely avoided.
  • the substantially continuously radially outwardly decreasing fiber content within the cover layer 2 ensures that even within the cover layer 2 the longitudinal stresses occurring during heating in the course radially outwards each have only low values that can be absorbed by the elasticity of the matrix material 3 ,

Landscapes

  • Rolls And Other Rotary Bodies (AREA)
  • Paper (AREA)

Claims (5)

  1. Rouleau destiné notamment au lissage de bandes de papier, comportant un noyau de rouleau dur (1) constitué notamment de métal, dont la face extérieure est pourvue d'une couche de revêtement élastique (2), qui est constituée d'un matériau de matrice élastique (3, 3') et de fibres (4) enrobées dans le matériau de matrice (3, 3'),
    caractérisé en ce que
    la teneur en fibres de la couche de revêtement (2) diminue radialement en continu de l'intérieur vers l'extérieur.
  2. Rouleau selon la revendication 1,
    caractérisé en ce que
    dans la zone (6) située radialement à l'extérieur de la couche de revêtement (2), la teneur en fibres est sensiblement égale à zéro.
  3. Rouleau selon l'une des revendications précédentes,
    caractérisé en ce que
    les fibres (4) sont des fibres de verre et/ou de carbone, et/ou en ce que le matériau de matrice (3) est une matière plastique, notamment une résine thermodurcissable ou une matière thermoplastique, et/ou en ce que le matériau de matrice (3) est constitué d'une combinaison de résine et de durcisseur.
  4. Procédé destiné à la fabrication d'un rouleau élastique, comportant un noyau de rouleau dur constitué notamment de métal, et une couche de revêtement élastique qui est constituée d'un matériau de matrice élastique et de fibres enrobées dans celui-ci, notamment à la fabrication d'un rouleau selon l'une des revendications précédentes,
    caractérisé en ce que
    la teneur en fibres de la couche de revêtement diminue dans la direction radiale en continu de l'intérieur vers l'extérieur.
  5. Procédé selon la revendication 4,
    caractérisé en ce que
    des fibres de verre et/ou de carbone sont utilisées en tant que fibres.
EP00105583A 1999-03-31 2000-03-16 Rouleau élastique et procédé de fabrication d' un tel rouleau Expired - Lifetime EP1041198B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19914710A DE19914710A1 (de) 1999-03-31 1999-03-31 Elastische Walze und Verfahren zum Herstellen einer solchen
DE19914710 1999-03-31

Publications (3)

Publication Number Publication Date
EP1041198A1 EP1041198A1 (fr) 2000-10-04
EP1041198B1 EP1041198B1 (fr) 2006-06-21
EP1041198B2 true EP1041198B2 (fr) 2010-02-03

Family

ID=7903146

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00105583A Expired - Lifetime EP1041198B2 (fr) 1999-03-31 2000-03-16 Rouleau élastique et procédé de fabrication d' un tel rouleau

Country Status (3)

Country Link
US (1) US6319185B1 (fr)
EP (1) EP1041198B2 (fr)
DE (2) DE19914710A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19951038A1 (de) * 1999-10-22 2001-04-26 Voith Paper Patent Gmbh Elastische Walze
DE19952320A1 (de) * 1999-10-29 2001-05-03 Voith Paper Patent Gmbh Elastische Walze sowie Verfahren zur Herstellung einer solchen Walze
FI116082B (fi) 2001-02-27 2005-09-15 Metso Paper Inc Menetelmä telan tai hihnan polymeeripinnoitteen ominaisuuksien säätämiseksi
DE10129107C2 (de) * 2001-06-16 2003-08-14 Westland Gummiwerke Gmbh & Co Walze für Fluidfilmaufbereitung oder Verarbeitung
DE102004025116A1 (de) 2004-05-21 2005-12-08 Voith Paper Patent Gmbh Faserverbund Walzenbezug
US8156597B2 (en) * 2005-07-14 2012-04-17 Kegel, LLC. Cushion roll for bowling lane cleaning machine
FI20070244A0 (fi) 2007-03-23 2007-03-23 Metso Paper Inc Tela
DE102009029695A1 (de) * 2009-09-23 2011-03-31 Voith Patent Gmbh Walzenbezug
DE102010049457A1 (de) * 2010-10-22 2012-04-26 Paul Sauer Gmbh & Co. Walzenfabrik Kg Walze oder Walzenelement mit verstärktem Walzenmantel

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2128294A1 (de) † 1971-06-07 1973-01-04 Dunbeath Holdings Pty Ltd N D Walze, insbesondere walze mit kunststoffueberzug und verfahren zu deren herstellung
US3852862A (en) † 1972-11-08 1974-12-10 New Hudson Corp Roll and method of manufacture
DE2617741A1 (de) † 1976-04-23 1977-11-03 Heidelberg Portland Zement Verfahren zur herstellung von faserverstaerkten hydraulisch erhaertenden massen vorbestimmbarer formgestalt
DE3029288A1 (de) † 1979-08-10 1981-03-26 Yamauchi Corp., Hirakata, Osaka Mit einem elastomeren material bedeckte walzen und verfahren zu ihrer herstellung
DE19736575A1 (de) † 1997-08-22 1999-03-11 Freudenberg Carl Fa Walze

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3467009A (en) * 1965-07-06 1969-09-16 Grace W R & Co Compressible printing roll
US3406248A (en) * 1966-10-27 1968-10-15 Anaconda Wire & Cable Co Cable with extruded covering having fibrous interlayer
US3514312A (en) * 1967-07-12 1970-05-26 Barrier Corp The Process for coating a metal surface
US3490119A (en) * 1968-10-23 1970-01-20 Yamauchi Rubber Ind Co Ltd Polyurethane rubber covered roll
DE1807331A1 (de) * 1968-11-06 1970-06-11 Yamauchi Rubber Ind Co Ltd Mit Polyurethan-Gummi beschichtete Walze und Verfahren zur Herstellung einer solchen Walze
DE2514294C2 (de) * 1975-04-02 1985-01-03 Continental Gummi-Werke Ag, 3000 Hannover Mantel einer Walze für die Druckbehandlung von Warenbahnen
JPS5724216A (en) * 1980-07-21 1982-02-08 Fuji Photo Film Co Ltd Supercalender
US4631793A (en) * 1984-01-27 1986-12-30 Chugai Ro Co., Ltd. Fiber reinforced metal alloy and method for the manufacture thereof
FI72765C (fi) * 1986-02-13 1987-07-10 Valmet Oy Utbredningsvals eller motsvarande foer vaevnaden i en pappersmaskin samt foerfarande foer framstaellning av denna.
US4940445A (en) * 1989-09-27 1990-07-10 Desportes Aubrey S Tire and process for making a tire
FI101556B1 (fi) * 1990-10-08 1998-07-15 Yamauchi Corp Paperikoneen puristustela
DE4339097C1 (de) * 1993-11-16 1994-11-17 Freudenberg Carl Fa Verfahren zur Herstellung eines Walzenkörpers
DE19506301C2 (de) * 1995-02-23 2000-07-13 Voith Sulzer Finishing Gmbh Kalander für Papierbahnen
DE19511153C2 (de) * 1995-03-27 1997-04-30 Voith Sulzer Finishing Gmbh Kalanderwalze, insbesondere für die Papierbehandlung
US5857950A (en) * 1996-11-06 1999-01-12 Pamarco Incorporated Fluid metering roll
CN1105335C (zh) * 1997-02-27 2003-04-09 东海橡胶工业株式会社 电照相成像设备中显影辊所用的低硬度导电辊
FI111025B (fi) * 1997-05-30 2003-05-15 Metso Paper Inc Kestomuovipinnoitteinen tela, menetelmä telan valmistamiseksi, kestomuovipinnoitekoostumus, kalanterointimenetelmä keksinnön mukaisia kestomuovipinnotteisia teloja käyttäen sekä telojen avulla valmistettu paperi/kartonki
US6142203A (en) * 1997-09-03 2000-11-07 Maine Rubber International Resilient wheel with steel-banded press-on solid pneumatic tire
KR100354751B1 (ko) * 1998-12-18 2002-11-18 삼성전자 주식회사 습식인쇄기용정착롤러
US6148170A (en) * 1999-09-21 2000-11-14 Illbruck Gmbh Fuser roller having a thick wearable release layer

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2128294A1 (de) † 1971-06-07 1973-01-04 Dunbeath Holdings Pty Ltd N D Walze, insbesondere walze mit kunststoffueberzug und verfahren zu deren herstellung
US3852862A (en) † 1972-11-08 1974-12-10 New Hudson Corp Roll and method of manufacture
DE2617741A1 (de) † 1976-04-23 1977-11-03 Heidelberg Portland Zement Verfahren zur herstellung von faserverstaerkten hydraulisch erhaertenden massen vorbestimmbarer formgestalt
DE3029288A1 (de) † 1979-08-10 1981-03-26 Yamauchi Corp., Hirakata, Osaka Mit einem elastomeren material bedeckte walzen und verfahren zu ihrer herstellung
DE19736575A1 (de) † 1997-08-22 1999-03-11 Freudenberg Carl Fa Walze

Also Published As

Publication number Publication date
EP1041198A1 (fr) 2000-10-04
DE19914710A1 (de) 2000-10-05
EP1041198B1 (fr) 2006-06-21
US6319185B1 (en) 2001-11-20
DE50013013D1 (de) 2006-08-03

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