FI20085451L - Method and device arrangement for quality control of a metal strip - Google Patents

Method and device arrangement for quality control of a metal strip Download PDF

Info

Publication number
FI20085451L
FI20085451L FI20085451A FI20085451A FI20085451L FI 20085451 L FI20085451 L FI 20085451L FI 20085451 A FI20085451 A FI 20085451A FI 20085451 A FI20085451 A FI 20085451A FI 20085451 L FI20085451 L FI 20085451L
Authority
FI
Finland
Prior art keywords
metal belt
device arrangement
fibrous web
quality
processing
Prior art date
Application number
FI20085451A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI20085451A0 (en
Inventor
Tony Lehto
Antti Kontto
Reijo Pietikaeinen
Jani Yli-Alho
Kimmo Ahola
Riku Pihko
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
Priority to FI20085451A priority Critical patent/FI20085451L/en
Publication of FI20085451A0 publication Critical patent/FI20085451A0/en
Priority to PCT/FI2009/050289 priority patent/WO2009138551A1/en
Publication of FI20085451L publication Critical patent/FI20085451L/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00—Calenders; Smoothing apparatus
    • D21G1/0066—Calenders; Smoothing apparatus using a special calendering belt
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
    • G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
    • G01N27/90—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents
    • G01N27/9013—Arrangements for scanning
    • G01N27/9026—Arrangements for scanning by moving the material
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
    • G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
    • G01N27/90—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents
    • G01N27/9046—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents by analysing electrical signals

Abstract

The invention relates to a device arrangement for controlling the quality of a metal belt (2) in an apparatus (1) for processing a fibrous web W, the said processing apparatus (1) comprising a metal belt (2) for conveying the fibrous web, and the fibrous web is also arranged to be conveyed through at least one counter-element (5) forming a contact surface with the metal belt, between which metal belt (2) and counter-element (5) is formed a fibrous web W processing zone. The device arrangement comprises as measuring instruments at least one measuring sensor (7) located in the vicinity of the metal belt for forming an eddy current in the metal belt and for carrying out eddy-current measurement on the moving metal belt (2), and at least one amplifier (11) for forming the measurement information, which measurement information includes information on the quality of the metal belt. The device arrangement also comprises a measuring computer (10) for controlling the quality of the metal belt by processing the said measurement information.
FI20085451A 2008-05-14 2008-05-14 Method and device arrangement for quality control of a metal strip FI20085451L (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FI20085451A FI20085451L (en) 2008-05-14 2008-05-14 Method and device arrangement for quality control of a metal strip
PCT/FI2009/050289 WO2009138551A1 (en) 2008-05-14 2009-04-20 Method and device arrangement for controlling the quality of a metal belt

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI20085451A FI20085451L (en) 2008-05-14 2008-05-14 Method and device arrangement for quality control of a metal strip

Publications (2)

Publication Number Publication Date
FI20085451A0 FI20085451A0 (en) 2008-05-14
FI20085451L true FI20085451L (en) 2009-11-15

Family

ID=39523105

Family Applications (1)

Application Number Title Priority Date Filing Date
FI20085451A FI20085451L (en) 2008-05-14 2008-05-14 Method and device arrangement for quality control of a metal strip

Country Status (2)

Country Link
FI (1) FI20085451L (en)
WO (1) WO2009138551A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3010793A1 (en) * 2013-09-16 2015-03-20 Eads Europ Aeronautic Defence MODULAR ARCHITECTURE OF A NON-DESTRUCTIVE CONTROL SYSTEM

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4755753A (en) * 1986-07-23 1988-07-05 General Electric Company Eddy current surface mapping system for flaw detection
JPH089641Y2 (en) * 1989-01-30 1996-03-21 株式会社明電舎 Steel belt crack detector
DE112004002418T5 (en) * 2003-12-10 2006-10-19 Metso Paper, Inc. Method for controlling the running parameters in a device for treating a fiber web and apparatus for applying this method

Also Published As

Publication number Publication date
FI20085451A0 (en) 2008-05-14
WO2009138551A1 (en) 2009-11-19

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Legal Events

Date Code Title Description
FD Application lapsed