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FI990385A7 - Method and apparatus for determining the nonlinear shrinkage profile or change thereof of a moving paper or board web - Google Patents

Method and apparatus for determining the nonlinear shrinkage profile or change thereof of a moving paper or board web Download PDF

Info

Publication number
FI990385A7
FI990385A7 FI990385A FI990385A FI990385A7 FI 990385 A7 FI990385 A7 FI 990385A7 FI 990385 A FI990385 A FI 990385A FI 990385 A FI990385 A FI 990385A FI 990385 A7 FI990385 A7 FI 990385A7
Authority
FI
Finland
Prior art keywords
determining
change
board web
shrinkage profile
moving paper
Prior art date
Application number
FI990385A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI990385A0 (en
FI990385L (en
Inventor
JUHA KNIIVILä
Jorma O Virtanen
Original Assignee
Metso Paper Automation 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 Metso Paper Automation Oy filed Critical Metso Paper Automation Oy
Priority to FI990385A priority Critical patent/FI990385L/en
Publication of FI990385A0 publication Critical patent/FI990385A0/en
Priority to AU28086/00A priority patent/AU2808600A/en
Priority to PCT/FI2000/000141 priority patent/WO2000050865A1/en
Publication of FI990385A7 publication Critical patent/FI990385A7/en
Publication of FI990385L publication Critical patent/FI990385L/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G9/00—Other accessories for paper-making machines
    • D21G9/0009—Paper-making control systems
    • D21G9/0027—Paper-making control systems controlling the forming section
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/04—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands
    • G01L5/045—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands for measuring the tension across the width of a band-shaped flexible member
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/34—Paper
    • G01N33/346—Paper sheets

Landscapes

  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Biochemistry (AREA)
  • Medicinal Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • Food Science & Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Paper (AREA)

Abstract

Keksinnön kohteena on menetelmä ja laitteisto liikkuvan rainan epälineaarisen kutistumaprofiilin määrittämiseksi. Keksinnössä hyödynnetään rainan (3) kireysmittauslait-teistosta (5) saatavaa tietoa rainan (3) kireysprofiilista, jonka avulla määritetään rainan (3) epälineaarinen kutis-tumaprofiili. (kuvio 1)The invention relates to a method and apparatus for determining the nonlinear shrinkage profile of a moving web. The invention utilizes information about the tension profile of the web (3) obtained from the tension measuring device (5) of the web (3), which is used to determine the nonlinear shrinkage profile of the web (3). (Figure 1)

FI990385A 1999-02-23 1999-02-23 Method and apparatus for determining the nonlinear shrinkage profile or change thereof of a moving paper or board web FI990385L (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FI990385A FI990385L (en) 1999-02-23 1999-02-23 Method and apparatus for determining the nonlinear shrinkage profile or change thereof of a moving paper or board web
AU28086/00A AU2808600A (en) 1999-02-23 2000-02-22 Method and apparatus for determining non-linear shrinkage on the basis of the tension profile
PCT/FI2000/000141 WO2000050865A1 (en) 1999-02-23 2000-02-22 Method and apparatus for determining non-linear shrinkage on the basis of the tension profile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI990385A FI990385L (en) 1999-02-23 1999-02-23 Method and apparatus for determining the nonlinear shrinkage profile or change thereof of a moving paper or board web

Publications (3)

Publication Number Publication Date
FI990385A0 FI990385A0 (en) 1999-02-23
FI990385A7 true FI990385A7 (en) 2000-08-24
FI990385L FI990385L (en) 2000-08-24

Family

ID=8553910

Family Applications (1)

Application Number Title Priority Date Filing Date
FI990385A FI990385L (en) 1999-02-23 1999-02-23 Method and apparatus for determining the nonlinear shrinkage profile or change thereof of a moving paper or board web

Country Status (3)

Country Link
AU (1) AU2808600A (en)
FI (1) FI990385L (en)
WO (1) WO2000050865A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI111193B (en) * 2001-12-19 2003-06-13 Metso Paper Automation Oy Method and apparatus for measuring tension of a moving web

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU725024A1 (en) * 1977-11-28 1980-03-30 Поронайский Целлюлозно-Бумажный Завод Method of automatic monitoring of paper web tension
US5400258A (en) * 1993-09-03 1995-03-21 Measurex Corporation Automatic cross-directional control zone alignment for sheetmaking systems
FI94066C (en) * 1994-05-16 1995-07-10 Valmet Paper Machinery Inc Comprehensive management system for the various cross-section profiles of a paper web produced on a web material making machine such as a board or paper machine and / or a finishing machine
US5898589A (en) * 1997-11-17 1999-04-27 Valmet Automation Inc. Method and equipment for defining cross-directional properties of sheet in continuous sheet making process

Also Published As

Publication number Publication date
FI990385A0 (en) 1999-02-23
AU2808600A (en) 2000-09-14
WO2000050865A1 (en) 2000-08-31
FI990385L (en) 2000-08-24

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Legal Events

Date Code Title Description
FD Application lapsed