AU3969400A - Method for cross-direction profiling of a paper or board web in a nip - Google Patents

Method for cross-direction profiling of a paper or board web in a nip

Info

Publication number
AU3969400A
AU3969400A AU39694/00A AU3969400A AU3969400A AU 3969400 A AU3969400 A AU 3969400A AU 39694/00 A AU39694/00 A AU 39694/00A AU 3969400 A AU3969400 A AU 3969400A AU 3969400 A AU3969400 A AU 3969400A
Authority
AU
Australia
Prior art keywords
nip
paper
pressure medium
feed points
roll
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.)
Abandoned
Application number
AU39694/00A
Inventor
Timo Torvi
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.)
Metso Paper Oy
Original Assignee
Valmet Oy
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 Valmet Oy filed Critical Valmet Oy
Publication of AU3969400A publication Critical patent/AU3969400A/en
Abandoned legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00—Calenders; Smoothing apparatus
    • D21G1/006—Calenders; Smoothing apparatus with extended nips
    • 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
    • D21F3/0209—Wet presses with extended press nip
    • D21F3/0218—Shoe presses
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00—Calenders; Smoothing apparatus
    • D21G1/002—Opening or closing mechanisms; Regulating the pressure

Landscapes

  • Paper (AREA)
  • Replacement Of Web Rolls (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)

Abstract

A nip is formed between a backing roll (10) and a loading roll (20). The loading roll (20) is comprised of a stationary support structure (21) and, adapted to run about the same, a flexible mantle (22) supported by its inner surface (22a) on said support structure (21) by means of at least one supporting member (23) serving to press said flexible mantle (22) against said backing roll (10). The loading roll (20) includes further at least one essentially axially aligned row of discrete pressure medium feed points (25, 26), whereby a pressure and/or flow rate controlled flow of pressure medium can be fed through the feed points (25, 26) of said at least one row against said inner surface (22a) of said mantle (22). According to the method, the pressure medium fed through said feed points (26) is used cross-machine direction (CD) profiling of the paper or board web passing through the nip (N).
AU39694/00A 1999-04-15 2000-04-14 Method for cross-direction profiling of a paper or board web in a nip Abandoned AU3969400A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI990839A FI112511B (en) 1999-04-15 1999-04-15 Method for transversely profiling a paper or board web in a nip
FI990839 1999-04-15
PCT/FI2000/000319 WO2000063491A2 (en) 1999-04-15 2000-04-14 Method for cross-direction profiling of a paper or board web in a nip

Publications (1)

Publication Number Publication Date
AU3969400A true AU3969400A (en) 2000-11-02

Family

ID=8554432

Family Applications (1)

Application Number Title Priority Date Filing Date
AU39694/00A Abandoned AU3969400A (en) 1999-04-15 2000-04-14 Method for cross-direction profiling of a paper or board web in a nip

Country Status (7)

Country Link
EP (1) EP1226305B1 (en)
AT (1) ATE262075T1 (en)
AU (1) AU3969400A (en)
CA (1) CA2370354C (en)
DE (1) DE60009119T2 (en)
FI (1) FI112511B (en)
WO (1) WO2000063491A2 (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19544978C2 (en) * 1995-12-01 1998-07-30 Voith Sulzer Papiermasch Gmbh Press roll

Also Published As

Publication number Publication date
CA2370354C (en) 2008-02-19
DE60009119T2 (en) 2005-04-28
FI990839A (en) 2000-10-16
FI112511B (en) 2003-12-15
DE60009119D1 (en) 2004-04-22
ATE262075T1 (en) 2004-04-15
EP1226305A2 (en) 2002-07-31
EP1226305B1 (en) 2004-03-17
WO2000063491A3 (en) 2001-04-05
FI990839A0 (en) 1999-04-15
CA2370354A1 (en) 2000-10-26
WO2000063491A2 (en) 2000-10-26

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Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase