ATE161059T1 - METHOD FOR HEATING A ROLLER AND HEATED ROLLER, IN PARTICULAR PRESS ROLLER FOR A PAPER MACHINE - Google Patents

METHOD FOR HEATING A ROLLER AND HEATED ROLLER, IN PARTICULAR PRESS ROLLER FOR A PAPER MACHINE

Info

Publication number
ATE161059T1
ATE161059T1 AT93850196T AT93850196T ATE161059T1 AT E161059 T1 ATE161059 T1 AT E161059T1 AT 93850196 T AT93850196 T AT 93850196T AT 93850196 T AT93850196 T AT 93850196T AT E161059 T1 ATE161059 T1 AT E161059T1
Authority
AT
Austria
Prior art keywords
roll
roller
heating
paper machine
heated
Prior art date
Application number
AT93850196T
Other languages
German (de)
Inventor
Juhani Niskanen
Risto Talja
Juhani Vestola
Original Assignee
Valmet Corp
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
Priority claimed from FI924754A external-priority patent/FI924754L/en
Priority claimed from FI925634A external-priority patent/FI103679B1/en
Application filed by Valmet Corp filed Critical Valmet Corp
Application granted granted Critical
Publication of ATE161059T1 publication Critical patent/ATE161059T1/en

Links

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

Landscapes

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

Abstract

A heatable roll (10), in particular a press roll or equivalent for a paper machine, which roll is in direct contact with the paper web and a method for heating a roll are disclosed. The roll is heated by flowing a heat transfer medium into the roll. The medium is preferably arranged to circulate in bores (16) formed into a roll mantle in proximity to an outer face of the roll. The outer face of the roll is provided with a coating (18) made of a ceramic, metal-ceramic mixture, porous metal or an equivalent material whose thermal conductivity and modulus of elasticity are lower than the corresponding properties of the material of the roll body. The coating is porous, and its thickness is from about 0.03 mm to about 6 mm, preferably from about 0.05 mm to about 2 mm. <IMAGE>
AT93850196T 1992-10-20 1993-10-19 METHOD FOR HEATING A ROLLER AND HEATED ROLLER, IN PARTICULAR PRESS ROLLER FOR A PAPER MACHINE ATE161059T1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI924754A FI924754L (en) 1992-10-20 1992-10-20 Upphettbar vals, i täkker en Vals Foer pappersmaskin
FI925634A FI103679B1 (en) 1992-10-20 1992-12-11 Heatable roller, in particular a paper machine roller
US1774593A 1993-02-16 1993-02-16

Publications (1)

Publication Number Publication Date
ATE161059T1 true ATE161059T1 (en) 1997-12-15

Family

ID=27241532

Family Applications (1)

Application Number Title Priority Date Filing Date
AT93850196T ATE161059T1 (en) 1992-10-20 1993-10-19 METHOD FOR HEATING A ROLLER AND HEATED ROLLER, IN PARTICULAR PRESS ROLLER FOR A PAPER MACHINE

Country Status (4)

Country Link
EP (1) EP0597814B1 (en)
AT (1) ATE161059T1 (en)
CA (1) CA2108624A1 (en)
DE (1) DE69315673T2 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI106054B (en) * 1999-03-29 2000-11-15 Valmet Corp Thermo roll for a paper / cardboard machine or finishing machine and process for making the thermo roll
US5667641A (en) * 1995-10-23 1997-09-16 Pulp And Paper Research Institute Of Canada Application of thermal barrier coatings to paper machine drying cylinders to prevent paper edge overdrying
ATE229591T1 (en) 1997-04-11 2002-12-15 Metso Paper Inc ROLLER FOR A PAPER OR CARDBOARD MACHINE AND METHOD FOR PRODUCING THE ROLLER
FI105115B (en) * 1998-12-02 2000-06-15 Valmet Corp Heated roller
DE10023291A1 (en) * 2000-05-15 2001-11-22 Bhs Corr Masch & Anlagenbau Heated/cooled roller for processing a corrugated cardboard web has inner and outer swivel bearings to support the hollow mantle at the axis end with the medium inflow/outflow and a sealing head
DE102011078759A1 (en) * 2011-07-06 2013-01-10 Voith Patent Gmbh ROLL WITH WEAR-RESISTANT ANTI-THICK SURFACE
DE102012207398A1 (en) * 2012-05-04 2013-09-19 Voith Patent Gmbh Manufacture of roll used in press section of machine used in production and finishing of fibrous web, involves coating roll component with oxide ceramics, mechanically processing resultant component, and carrying out laser engraving

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3662409D1 (en) * 1985-04-30 1989-04-20 Yamauchi Corp Press roll for paper machines
US4738752A (en) * 1986-08-12 1988-04-19 Beloit Corporation Heated extended nip press apparatus
FI86566C (en) * 1989-10-27 1992-09-10 Valmet Paper Machinery Inc VALS FOER ANVAENDNING VID PAPPERSFRAMSTAELLNING OCH FOERFARANDE FOER FRAMSTAELLNING AV VALSEN.
FI92733C (en) * 1990-08-15 1994-12-27 Valmet Paper Machinery Inc Heated roller
US5171404A (en) * 1990-11-30 1992-12-15 S. D. Warren Company Method and apparatus for calendering paper with internally heated roll

Also Published As

Publication number Publication date
DE69315673T2 (en) 1998-04-09
EP0597814B1 (en) 1997-12-10
CA2108624A1 (en) 1994-04-21
EP0597814A1 (en) 1994-05-18
DE69315673D1 (en) 1998-01-22

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification