SE9602347D0 - A multilayer headbox for a papermaking machine - Google Patents

A multilayer headbox for a papermaking machine

Info

Publication number
SE9602347D0
SE9602347D0 SE9602347A SE9602347A SE9602347D0 SE 9602347 D0 SE9602347 D0 SE 9602347D0 SE 9602347 A SE9602347 A SE 9602347A SE 9602347 A SE9602347 A SE 9602347A SE 9602347 D0 SE9602347 D0 SE 9602347D0
Authority
SE
Sweden
Prior art keywords
slice chamber
machine
vane
stiffness
upstream
Prior art date
Application number
SE9602347A
Other languages
Swedish (sv)
Other versions
SE506931C2 (en
SE9602347L (en
Inventor
N Ulf A Haraldsson
Ingvar B E Klerelid
Anders T Linden
Louise M Toernefalk
Original Assignee
Valmet Karlstad Ab
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=20403001&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=SE9602347(D0) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Valmet Karlstad Ab filed Critical Valmet Karlstad Ab
Priority to SE9602347A priority Critical patent/SE506931C2/en
Publication of SE9602347D0 publication Critical patent/SE9602347D0/en
Priority to DE69715236T priority patent/DE69715236T3/en
Priority to JP50150598A priority patent/JP3194967B2/en
Priority to PCT/SE1997/000921 priority patent/WO1997047804A1/en
Priority to AT97927534T priority patent/ATE223534T1/en
Priority to EP97927534A priority patent/EP0939842B2/en
Publication of SE9602347L publication Critical patent/SE9602347L/en
Publication of SE506931C2 publication Critical patent/SE506931C2/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F9/00—Complete machines for making continuous webs of paper
    • D21F9/003—Complete machines for making continuous webs of paper of the twin-wire type
    • D21F9/006—Complete machines for making continuous webs of paper of the twin-wire type paper or board consisting of two or more layers
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/02—Head boxes of Fourdrinier machines
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/02—Head boxes of Fourdrinier machines
    • D21F1/028—Details of the nozzle section

Landscapes

  • Paper (AREA)
  • Making Paper Articles (AREA)
  • De-Stacking Of Articles (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)

Abstract

A multilayer headbox for a papermaking machine which comprises a slice chamber having an upstream inlet and a downstream outlet. A tube bank comprising a plurality of straight tubes is located upstream of the slice chamber. In the slice chamber, at least one machine-wide separator vane is subdividing the slice chamber for the production of multilayered fibrous webs. The separator vane may be a tapered glass fiber reinforced epoxy resin vane or composed of an upstream steel section of constant thickness and a downstream tapered section of glass fiber reinforced epoxy resin. The separator vane has a stiffness, which for at least 70 % of its length is higher than the stiffness of a 1 mm thick reference sheet of a material having a modulus of elasticity of 2100 MPa. In the slice chamber, there is also a plurality of machine-wide turbulence generating elements.
SE9602347A 1996-06-12 1996-06-12 Multilayer inbox for a paper machine SE506931C2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
SE9602347A SE506931C2 (en) 1996-06-12 1996-06-12 Multilayer inbox for a paper machine
DE69715236T DE69715236T3 (en) 1996-06-12 1997-05-29 MULTILAYER RETURN FOR A PAPER MACHINE
JP50150598A JP3194967B2 (en) 1996-06-12 1997-05-29 Multi-layer headbox for papermaking machine
PCT/SE1997/000921 WO1997047804A1 (en) 1996-06-12 1997-05-29 A multilayer headbox for a papermaking machine
AT97927534T ATE223534T1 (en) 1996-06-12 1997-05-29 MULTI-LAYER HEADBOX FOR A PAPER MACHINE
EP97927534A EP0939842B2 (en) 1996-06-12 1997-05-29 A multilayer headbox for a papermaking machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9602347A SE506931C2 (en) 1996-06-12 1996-06-12 Multilayer inbox for a paper machine

Publications (3)

Publication Number Publication Date
SE9602347D0 true SE9602347D0 (en) 1996-06-12
SE9602347L SE9602347L (en) 1997-12-13
SE506931C2 SE506931C2 (en) 1998-03-02

Family

ID=20403001

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9602347A SE506931C2 (en) 1996-06-12 1996-06-12 Multilayer inbox for a paper machine

Country Status (6)

Country Link
EP (1) EP0939842B2 (en)
JP (1) JP3194967B2 (en)
AT (1) ATE223534T1 (en)
DE (1) DE69715236T3 (en)
SE (1) SE506931C2 (en)
WO (1) WO1997047804A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10106684A1 (en) * 2001-02-14 2002-08-29 Voith Paper Patent Gmbh Slat of a headbox of a paper, cardboard or tissue machine
DE10256510A1 (en) * 2002-12-04 2004-06-24 Voith Paper Patent Gmbh Headbox of a paper or board machine for the production of a fibrous web
US7785446B2 (en) 2004-10-05 2010-08-31 Toray Industries, Inc. Flow sheet for paper machine and method of manufacturing the same
EP2129830A4 (en) * 2007-03-01 2012-06-13 Metso Paper Karlstad Ab Structural element for a functional member of a headbox in a web-manufacturing machine, functional member and headbox made thereof, and associated methods
DE102008000564A1 (en) * 2008-03-07 2009-09-10 Voith Patent Gmbh Device for producing and / or treating a fibrous web
EP2707542A4 (en) * 2011-05-11 2015-04-08 Hollingsworth & Vose Co Systems and methods for making fiber webs

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3923593A (en) † 1971-12-03 1975-12-02 Beloit Corp Multiple ply web former with divided slice chamber
US4141788A (en) † 1978-05-02 1979-02-27 Beloit Corporation Method of and means for forming multi-ply paper webs from a single headbox
GB2046323B (en) † 1979-04-12 1983-11-30 Beloit Corp Apparatus and method for forming multiply webs
SE440924B (en) † 1982-03-30 1985-08-26 Kmw Ab headbox
US4617091A (en) † 1983-11-25 1986-10-14 Beloit Corporation Headbox trailing element
CA1230251A (en) † 1983-11-25 1987-12-15 Jose J. A. Rodal Converflo trailing element
US4566945A (en) † 1984-04-11 1986-01-28 Beloit Corporation Headbox trailing element
CH672515A5 (en) † 1987-02-02 1989-11-30 Escher Wyss Gmbh
DE4225297C2 (en) † 1992-07-31 1996-11-28 Voith Sulzer Papiermasch Gmbh Headbox for a paper machine
DE4329810C2 (en) † 1993-09-03 1997-02-06 Voith Gmbh J M Geometry of the slat end of a headbox
SE501798C2 (en) * 1993-09-13 1995-05-15 Valmet Karlstad Ab Multilayer headbox
DE4440079C2 (en) † 1994-11-10 1997-10-02 Voith Sulzer Papiermasch Gmbh Multi-layer headbox

Also Published As

Publication number Publication date
DE69715236T2 (en) 2003-05-22
SE506931C2 (en) 1998-03-02
DE69715236T3 (en) 2006-12-14
JP3194967B2 (en) 2001-08-06
EP0939842B2 (en) 2006-06-28
DE69715236D1 (en) 2002-10-10
ATE223534T1 (en) 2002-09-15
JPH11514050A (en) 1999-11-30
SE9602347L (en) 1997-12-13
EP0939842A1 (en) 1999-09-08
EP0939842B1 (en) 2002-09-04
WO1997047804A1 (en) 1997-12-18

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Legal Events

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