ATE262075T1 - METHOD FOR TRANSVERSE DIRECTIONAL PROFILING OF A PAPER OR CARDBOARD WEB IN A GAP - Google Patents

METHOD FOR TRANSVERSE DIRECTIONAL PROFILING OF A PAPER OR CARDBOARD WEB IN A GAP

Info

Publication number
ATE262075T1
ATE262075T1 AT00918915T AT00918915T ATE262075T1 AT E262075 T1 ATE262075 T1 AT E262075T1 AT 00918915 T AT00918915 T AT 00918915T AT 00918915 T AT00918915 T AT 00918915T AT E262075 T1 ATE262075 T1 AT E262075T1
Authority
AT
Austria
Prior art keywords
paper
pressure medium
feed points
roll
gap
Prior art date
Application number
AT00918915T
Other languages
German (de)
Inventor
Timo Torvi
Original Assignee
Metso Paper 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 Metso Paper Inc filed Critical Metso Paper Inc
Application granted granted Critical
Publication of ATE262075T1 publication Critical patent/ATE262075T1/en

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).
AT00918915T 1999-04-15 2000-04-14 METHOD FOR TRANSVERSE DIRECTIONAL PROFILING OF A PAPER OR CARDBOARD WEB IN A GAP ATE262075T1 (en)

Applications Claiming Priority (2)

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
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
ATE262075T1 true ATE262075T1 (en) 2004-04-15

Family

ID=8554432

Family Applications (1)

Application Number Title Priority Date Filing Date
AT00918915T ATE262075T1 (en) 1999-04-15 2000-04-14 METHOD FOR TRANSVERSE DIRECTIONAL PROFILING OF A PAPER OR CARDBOARD WEB IN A GAP

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
WO2000063491A3 (en) 2001-04-05
CA2370354A1 (en) 2000-10-26
EP1226305B1 (en) 2004-03-17
FI990839A (en) 2000-10-16
CA2370354C (en) 2008-02-19
AU3969400A (en) 2000-11-02
WO2000063491A2 (en) 2000-10-26
EP1226305A2 (en) 2002-07-31
DE60009119D1 (en) 2004-04-22
FI112511B (en) 2003-12-15
DE60009119T2 (en) 2005-04-28
FI990839A0 (en) 1999-04-15

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