EP0924337A3 - Press roll - Google Patents

Press roll Download PDF

Info

Publication number
EP0924337A3
EP0924337A3 EP98122860A EP98122860A EP0924337A3 EP 0924337 A3 EP0924337 A3 EP 0924337A3 EP 98122860 A EP98122860 A EP 98122860A EP 98122860 A EP98122860 A EP 98122860A EP 0924337 A3 EP0924337 A3 EP 0924337A3
Authority
EP
European Patent Office
Prior art keywords
cladding
layer
roller
thickness
metal
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.)
Granted
Application number
EP98122860A
Other languages
German (de)
French (fr)
Other versions
EP0924337A2 (en
EP0924337B1 (en
Inventor
Roman Beyerknecht
Heinz Ribar
Herwig Dr. Bangert
Anton Dr. Bergauer
Christoph Dr. Eisenmenger-Sittner
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 Sulzer Papiertechnik 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7852327&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0924337(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Voith Sulzer Papiertechnik Patent GmbH filed Critical Voith Sulzer Papiertechnik Patent GmbH
Publication of EP0924337A2 publication Critical patent/EP0924337A2/en
Publication of EP0924337A3 publication Critical patent/EP0924337A3/en
Application granted granted Critical
Publication of EP0924337B1 publication Critical patent/EP0924337B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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

Abstract

The press roller, for a paper making machine, has a cylindrical metal body (12) with an outer cladding (14) of at least one layer (16,18). At least the radially outermost layer (16) of the roller cladding (14) has a continuously changing construction in the radial direction (R) and over its thickness (d), in terms of its chemical composition and/or structure. The roller cladding (14) is applied at least partially by spraying. The bottom layer (18) of the cladding (14) is directly against the metal core (12), to prevent corrosion, to lie between the metal roller body (12) and the outer layer (16). The outermost layer (16) of the roller cladding (14) contains at least an oxide, and especially of Al2O3, Cr2O3, ZrO2, TiO2, SiO2 and/or the like. It contains at least one carbide and especially WC, CrC and/or the like, and at least one nitride and especially TiN and/or the like, and/or at least one boride and especially TiB2 and/or the like, or a mixture of two or more of these components. The radially outermost layer (16) can be a ceramic/metal material with at least one oxide of Al2O3, Cr2O3, ZrO2, TiO2, SiO2 and/or the like. The outer layer (16) contains a plastics component and especially polytetrafluoroethylene, silicon and/or the like. The inner layer (18) also has a continually changing construction over at least part of its thickness, in terms of its chemical composition and/or structure, with a continuous construction change through the whole thickness of the total roller cladding (14).
EP98122860A 1997-12-17 1998-12-02 Press roll Expired - Lifetime EP0924337B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19756226A DE19756226A1 (en) 1997-12-17 1997-12-17 Press roll
DE19756226 1997-12-17

Publications (3)

Publication Number Publication Date
EP0924337A2 EP0924337A2 (en) 1999-06-23
EP0924337A3 true EP0924337A3 (en) 2000-04-26
EP0924337B1 EP0924337B1 (en) 2004-06-23

Family

ID=7852327

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98122860A Expired - Lifetime EP0924337B1 (en) 1997-12-17 1998-12-02 Press roll

Country Status (3)

Country Link
EP (1) EP0924337B1 (en)
AT (1) ATE269916T1 (en)
DE (2) DE19756226A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004025116A1 (en) * 2004-05-21 2005-12-08 Voith Paper Patent Gmbh Fiber composite roll cover for machines processing flat materials comprises a compound whose composition varies in different areas
WO2008086896A1 (en) * 2007-01-19 2008-07-24 Metso Paper, Inc. Paper machine roll with ceramic cover
US10563354B2 (en) 2012-04-06 2020-02-18 Stowe Woodward Licensco Llc Hydrophobic and/or amphiphobic roll cover
DE102012213783A1 (en) * 2012-08-03 2014-02-06 Voith Patent Gmbh Roller and method for producing a roller

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0207921A1 (en) * 1985-04-30 1987-01-07 Yamauchi Corporation Press roll for paper machines
US4767501A (en) * 1985-01-08 1988-08-30 Valmet Oy Method for equalizing compression pressure in a press nip of a paper machine
WO1991013204A1 (en) * 1990-02-22 1991-09-05 Tampella Papertech Oy Press roll for paper machine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4767501A (en) * 1985-01-08 1988-08-30 Valmet Oy Method for equalizing compression pressure in a press nip of a paper machine
EP0207921A1 (en) * 1985-04-30 1987-01-07 Yamauchi Corporation Press roll for paper machines
WO1991013204A1 (en) * 1990-02-22 1991-09-05 Tampella Papertech Oy Press roll for paper machine

Also Published As

Publication number Publication date
DE19756226A1 (en) 1999-06-24
EP0924337A2 (en) 1999-06-23
DE59811595D1 (en) 2004-07-29
ATE269916T1 (en) 2004-07-15
EP0924337B1 (en) 2004-06-23

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