EP0664843B1 - Verfahren zur herstellung einer presswalzenbekleidung - Google Patents

Verfahren zur herstellung einer presswalzenbekleidung Download PDF

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Publication number
EP0664843B1
EP0664843B1 EP93921473A EP93921473A EP0664843B1 EP 0664843 B1 EP0664843 B1 EP 0664843B1 EP 93921473 A EP93921473 A EP 93921473A EP 93921473 A EP93921473 A EP 93921473A EP 0664843 B1 EP0664843 B1 EP 0664843B1
Authority
EP
European Patent Office
Prior art keywords
matrix
cover
manufacturing
set forth
filler
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
EP93921473A
Other languages
English (en)
French (fr)
Other versions
EP0664843A1 (de
Inventor
James Bonander
Eugene L. Slagowski
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.)
Beloit Technologies Inc
Original Assignee
Beloit Technologies Inc
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 Beloit Technologies Inc filed Critical Beloit Technologies Inc
Publication of EP0664843A1 publication Critical patent/EP0664843A1/de
Application granted granted Critical
Publication of EP0664843B1 publication Critical patent/EP0664843B1/de
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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B3/00—Presses characterised by the use of rotary pressing members, e.g. rollers, rings, discs
    • B30B3/005—Roll constructions
    • 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

Definitions

  • the present invention relates to a method of manufacturing a cover for a press roll. More specifically, the present invention relates to a method of manufacturing a cover for a press roll which includes spirally winding reinforcing material around the press roll.
  • a formed web is guided through a press section for removing water from the web.
  • Steel press rolls have been covered with rubber or synthetic material in order to enhance the water removing capability of the press.
  • fillers have been added to urethane in order to increase the hardness of the cover.
  • the present invention overcomes the problem of adding filler to the spirally wound reinforcing material by applying the filler to an epoxy matrix prior to the application of the mixture to the reinforcing material.
  • the present invention provides a method of manufacturing a cover for a press roll that overcomes the aforementioned inadequacies of the prior art arrangements and which makes a considerable contribution to the art of manufacturing a cover for a press roll.
  • the present invention relates to a method of manufacturing a cover for a press roll.
  • the method includes the steps of feeding an epoxy matrix into a container and agitating the matrix. Filler material is added to the matrix while the matrix is being agitated, and the matrix and filler are then conveyed to an application zone. Reinforcing material is unwound from a roll such that the material extends past the application zone. The agitated matrix and filler are applied to the unwound material during passage of the material past the application zone. The reinforcing material, together with the matrix and filler, are then spirally wound around the press roll such that the press roll is covered with the reinforcing material impregnated with the matrix and filler. The arrangement is such that the surface characteristics of the resultant cover are dependent on the amount and type of filler material added to the matrix.
  • the epoxy matrix is a polymeric thermo-plastic matrix.
  • the matrix is a polymeric thermo-set matrix.
  • the filler material is composed of either mineral particles, synthetic particles or refractory particles.
  • the particles in one embodiment of the invention have a diameter less than one (1) millimeter, and in another embodiment of the present invention, the particles have a diameter of at least one (1) millimeter.
  • the filler material includes PTFE powder, together with glass fibers. In yet another embodiment of the present invention, the filler material includes PTFE powder, together with ceramic fibers.
  • the filler material includes PTFE powder, together with quartz fibers and feldspar particles.
  • the reinforcing material is either a woven material, a knitted material, a braided material or a non-woven material.
  • the step of spirally winding the reinforcing material is carried out during the cross-linking of the matrix.
  • Figure 1 is a schematic view illustrating a method of manufacturing a cover for a press roll shell according to the present invention.
  • Figure 1 shows an epoxy matrix 10 disposed within a container 12 .
  • the epoxy matrix 10 is being agitated by an agitator 14 .
  • Figure 2 is a similar view to that shown in Figure 1, but shows filler material 16 being added to the matrix 10 while the matrix 10 is being agitated within the container 12 .
  • Figure 3 is a similar view to that shown in Figure 2, but shows the agitated matrix 10 and filler 16 being conveyed and pumped via pump P to an application zone, generally designated 18 .
  • a roll 20 of reinforcing material 22 is unwound, as indicated by the arrow 26 , such that the reinforcing material 22 extends past the application zone 18 .
  • the agitated matrix and filler 10 and 16 are applied, as indicated by the arrow 26 , to the unwound material 22 during passage of the unwound material 22 past the application zone 18 .
  • Figure 4 is a perspective view of a press roll 28 and shows the roll 28 being spirally wound with the reinforcing material 22 , the matrix 10 and filler 16 having been previously applied to the reinforcing material 22 .
  • the arrangement is such that the press roll 28 is covered with the reinforcing material 22 , which is impregnated with the matrix 10 and filler 16 .
  • the surface characteristics of the resultant cover are consequently dependent on the amount and type of filler material 16 added to the matrix.
  • the matrix 10 is either a polymeric thermo-plastic matrix or a polymeric thermo-set matrix.
  • the filler material 16 is either composed of mineral particles, synthetic particles or refractory particles.
  • the filler material 16 includes particles having a diameter of less than one (1) millimeter, and in another embodiment of the present invention, the filler material 16 includes particles having a diameter of at least one (1) millimeter.
  • the filler material 16 includes either PTFE powder together with glass fibers, PTFE powder together with ceramic fibers, or PTFE powder together with quartz fibers and feldspar particles.
  • the reinforcing material 22 is either a woven material, a knitted material, a braided material or a non-woven material.
  • the step of spirally winding the reinforcing material 22 is carried out during the cross-linking of the matrix.
  • the present invention provides a method of manufacturing a roll cover which exhibits the required durometer hardness for the particular type of paper being pressed.
  • Such hardness of the cover is not only a requirement according to the type of paper being manufactured, but also a requirement according to the type of coating that will be applied thereto for subsequent calendering.
  • roll covers of varying durometer hardness will be required dependent upon the type of furnish being used.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reinforced Plastic Materials (AREA)
  • Moulding By Coating Moulds (AREA)
  • Paper (AREA)

Claims (16)

  1. Verfahren zum Herstellen einer Umhüllung für eine Preßwalze (28), wobei das Verfahren die Schritte beinhaltet:
    Einbringen einer Epoxymatrix (10) in einen Behälter (12);
    Umrühren der Epoxymatrix (10);
    Zusetzen von Füllmaterial (16) zu der Matrix (10), während die Matrix umgerührt wird; und
    spiralförmiges Wickeln von Verstärkungsmaterial (22), auf das die Matrix (10) und der Füllstoff (16) aufgetragen worden sind, um die Preßwalze (28) derart, daß die Preßwalze (28) mit dem mit der Matrix (10) und dem Füllstoff (16) getränkten Verstärkungsmaterial (22) umhüllt wird, wobei die Anordnung so getroffen wird, daß die Oberflächeneigenschaften der sich ergebenden Umhüllung von der Menge und dem Typ des Füllmaterials, das der Matrix (10) zugesetzt wird, abhängig sind,
    gekennzeichnet durch die Schritte:
    Fördern der umgerührten Matrix (10) und des Füllstoffes (16) zu einer Auftragszone (18);
    Abwickeln einer Rolle (20) des Verstärkungsmaterials (22) derart, daß sich das abgewickelte Verstärkungsmaterial (22) durch die Auftragszone (18) erstreckt; und
    Auftragen der umgerührten Matrix (10) mit dem Füllstoff (16) auf das abgewickelte Material (22) während des Vorbeigangs des abgewickelten Materials an der Auftragszone (18).
  2. Verfahren zum Herstellen einer Umhüllung nach Anspruch 1, dadurch gekennzeichnet, daß der Schritt des Einbringens beinhaltet:
    Einbringen einer polymeren thermoplastischen Matrix (10) in den Behälter (12).
  3. Verfahren zum Herstellen einer Umhüllung nach Anspruch 1, dadurch gekennzeichnet, daß der Schritt des Einbringens beinhaltet:
    Einbringen einer polymeren duroplastischen Matrix (10) in den Behälter (12).
  4. Verfahren zum Herstellen einer Umhüllung nach Anspruch 1, dadurch gekennzeichnet, daß der Schritt des Zusetzens von Füllmaterial (16) beinhaltet:
    Zusetzen von mineralischen Partikeln zu der Matrix (10).
  5. Verfahren zum Herstellen einer Umhüllung nach Anspruch 1, dadurch gekennzeichnet, daß der Schritt des Zusetzens von Füllmaterial (16) beinhaltet:
    Zusetzen von synthetischen Partikeln zu der Matrix (10).
  6. Verfahren zum Herstellen einer Umhüllung nach Anspruch 1, dadurch gekennzeichnet, daß der Schritt des Zusetzens von Füllmaterial (16) beinhaltet:
    Zusetzen von feuerfesten Partikeln zu der Matrix (10).
  7. Verfahren zum Herstellen einer Umhüllung nach Anspruch 1, dadurch gekennzeichnet, daß der Schritt des Zusetzens von Füllmaterial (16) beinhaltet:
    Zusetzen von Material, das eine Partikelgröße hat, die weniger als einen (1) Millimeter im Durchmesser beträgt.
  8. Verfahren zum Herstellen einer Umhüllung nach Anspruch 1, dadurch gekennzeichnet, daß der Schritt des Zusetzens von Füllmaterial (16) beinhaltet:
    Zusetzen von Material, das eine Partikelgröße hat, die wenigstens einen (1) Millimeter im Durchmesser beträgt.
  9. Verfahren zum Herstellen einer Umhüllung nach Anspruch 1, dadurch gekennzeichnet, daß der Schritt des Zusetzens von Füllmaterial (16) beinhaltet:
    Zusetzen von PTFE-Pulver zusammen mit Glasfasern.
  10. Verfahren zum Herstellen einer Umhüllung nach Anspruch 1, dadurch gekennzeichnet, daß der Schritt des Zusetzens von Füllmaterial (16) beinhaltet:
    Zusetzen von PTFE-Pulver zusammen mit keramischen Fasern.
  11. Verfahren zum Herstellen einer Umhüllung nach Anspruch 1, dadurch gekennzeichnet, daß der Schritt des Zusetzens von Füllmaterial (16) beinhaltet:
    Zusetzen von PTFE-Pulver zusammen mit Quarzfasern, zusammen mit Feldspatpartikeln.
  12. Verfahren zum Herstellen einer Umhüllung nach Anspruch 1, dadurch gekennzeichnet, daß das Verstärkungsmaterial (22) ein gewebtes Material ist.
  13. Verfahren zum Herstellen einer Umhüllung nach Anspruch 1, dadurch gekennzeichnet, daß das Verstärkungsmaterial (22) ein gestricktes Material ist.
  14. Verfahren zum Herstellen einer Umhüllung nach Anspruch 1, dadurch gekennzeichnet, daß das Verstärkungsmaterial (22) ein geflochtenes Material ist.
  15. Verfahren zum Herstellen einer Umhüllung nach Anspruch 1, dadurch gekennzeichnet, daß das Verstärkungsmaterial (22) ein ungewebtes Material ist.
  16. Verfahren zum Herstellen einer Umhüllung nach Anspruch 1, dadurch gekennzeichnet, daß der Schritt des spiralförmigen Wickelns des Verstärkungsmaterials (22) während der Vernetzung der Matrix (10) ausgeführt wird.
EP93921473A 1992-10-16 1993-09-09 Verfahren zur herstellung einer presswalzenbekleidung Expired - Lifetime EP0664843B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US96263692A 1992-10-16 1992-10-16
US962636 1992-10-16
PCT/US1993/008537 WO1994009208A1 (en) 1992-10-16 1993-09-09 A method of manufacturing a cover for a press roll

Publications (2)

Publication Number Publication Date
EP0664843A1 EP0664843A1 (de) 1995-08-02
EP0664843B1 true EP0664843B1 (de) 1997-10-29

Family

ID=25506169

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93921473A Expired - Lifetime EP0664843B1 (de) 1992-10-16 1993-09-09 Verfahren zur herstellung einer presswalzenbekleidung

Country Status (5)

Country Link
EP (1) EP0664843B1 (de)
JP (1) JP2881663B2 (de)
CA (1) CA2146770A1 (de)
DE (1) DE69314966T2 (de)
WO (1) WO1994009208A1 (de)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5601920A (en) * 1995-04-06 1997-02-11 Stowe Woodward Licensco, Inc. Covered roll and a method for making the same
DE19758443A1 (de) † 1997-03-14 1998-09-24 Voith Sulzer Finishing Gmbh Glättwerk
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
US6409645B1 (en) 1997-06-13 2002-06-25 Sw Paper Inc. Roll cover
DE19729189A1 (de) * 1997-07-08 1999-01-14 Voith Sulzer Papiermasch Gmbh Preßwalze
FI103740B1 (fi) * 1998-06-02 1999-08-31 Valmet Corp Nippitelan vaippa
DE19925419A1 (de) * 1999-06-02 2000-12-07 Voith Sulzer Papiertech Patent Elastische Walze und Verfahren zum Herstellen einer solchen
US6776744B1 (en) 1999-07-28 2004-08-17 Advanced Materials Corporation Method for and devices used in covering a roll core with a resin infused fiber reinforced adhesive under layer and a polymeric top layer, the method including the use of an improved mold tape
US6793754B1 (en) 1999-07-28 2004-09-21 Advanced Materials Corporation Covered roll having an under-layer formed of resin infused densely packed fibers that provides increased strength and adhesion properties
US6206994B1 (en) 1999-07-28 2001-03-27 Advanced Materials Corporation Method and apparatus for covering a metal roll core with a polymeric material preferable a high performance thermoplastic material
EP1422341B1 (de) * 1999-07-28 2009-11-11 Advanced Materials Corporation Verfahren zum Herstellen einer Rolle
DE10001409A1 (de) * 2000-01-14 2001-09-06 Voith Paper Patent Gmbh Elastische Walze und Verfahren zum Herstellen einer solchen
DE10339443A1 (de) * 2003-04-11 2004-10-21 Dirk Richter Walzenbeschichtungsverfahren und Walzenbeschichtung
US6874232B2 (en) 2003-05-21 2005-04-05 Stowe Woodward, Llc Method for forming cover for industrial roll
DE102004025116A1 (de) 2004-05-21 2005-12-08 Voith Paper Patent Gmbh Faserverbund Walzenbezug
US10287731B2 (en) 2005-11-08 2019-05-14 Stowe Woodward Licensco Llc Abrasion-resistant rubber roll cover with polyurethane coating
DE102007006821A1 (de) * 2007-02-07 2008-08-14 Voith Patent Gmbh Walzenbezug mit reibungsverminderendem Füllstoff
JP5651847B2 (ja) * 2011-04-06 2015-01-14 西武ポリマ化成株式会社 カレンダー用コットンロール芯金を利用した樹脂ロールの製造方法
DE102011075810A1 (de) * 2011-05-13 2012-11-15 Voith Patent Gmbh Korrosionsbeständige walzenbeschichtung
FI20115952L (fi) 2011-09-29 2013-03-30 Metso Paper Inc Telapinnoite
DE102012205227B3 (de) * 2012-03-30 2013-04-11 Voith Patent Gmbh Verfahren zur Herstellung eines Walzenbezugs und Walzenbezug

Family Cites Families (5)

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Publication number Priority date Publication date Assignee Title
US3069304A (en) * 1959-11-16 1962-12-18 Freudenberg Carl Fa Method of providing a mandrel with a compact uniform covering
US3800381A (en) * 1972-06-19 1974-04-02 Beloit Corp Covered roll for paper making
JPS5936133B2 (ja) * 1979-08-10 1984-09-01 山内ゴム工業株式会社 ポリウレタン・ゴム・ロ−ル及びその製造方法
US4576845A (en) * 1983-12-15 1986-03-18 Krc Inc. Thermally conductive base layers for cast polyurethane roll covers
FI92419C (fi) * 1990-11-19 1994-11-10 Valmet Paper Machinery Inc Menetelmä telan pinnoittamiseksi ja telapinnoite

Also Published As

Publication number Publication date
WO1994009208A1 (en) 1994-04-28
CA2146770A1 (en) 1994-04-28
DE69314966D1 (de) 1997-12-04
JP2881663B2 (ja) 1999-04-12
JPH07508566A (ja) 1995-09-21
DE69314966T2 (de) 1998-03-26
EP0664843A1 (de) 1995-08-02

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