JPS5739302A - Wall thickness measuring device provided with center run-out preventing device for tubular material - Google Patents

Wall thickness measuring device provided with center run-out preventing device for tubular material

Info

Publication number
JPS5739302A
JPS5739302A JP11352980A JP11352980A JPS5739302A JP S5739302 A JPS5739302 A JP S5739302A JP 11352980 A JP11352980 A JP 11352980A JP 11352980 A JP11352980 A JP 11352980A JP S5739302 A JPS5739302 A JP S5739302A
Authority
JP
Japan
Prior art keywords
rolls
materials
center run
conveyed
radiations
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.)
Pending
Application number
JP11352980A
Other languages
Japanese (ja)
Inventor
Yutaka Funiyu
Kiyoshi Okumura
Asao Monno
Masami Shimizu
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.)
JFE Steel Corp
Fuji Electric Co Ltd
Original Assignee
Fuji Electric Co Ltd
Kawasaki Steel Corp
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 Fuji Electric Co Ltd, Kawasaki Steel Corp filed Critical Fuji Electric Co Ltd
Priority to JP11352980A priority Critical patent/JPS5739302A/en
Priority to US06/275,990 priority patent/US4491731A/en
Priority to FR8112395A priority patent/FR2485719B1/en
Priority to CA000380493A priority patent/CA1180131A/en
Priority to DE19813125009 priority patent/DE3125009A1/en
Publication of JPS5739302A publication Critical patent/JPS5739302A/en
Priority to CA000438465A priority patent/CA1171557A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/24—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes
    • G01B5/25—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)
  • Length-Measuring Devices Using Wave Or Particle Radiation (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)

Abstract

PURPOSE:To make the improvement in the accuracy of continuous measurement of the wall thicknesses of tubular materials which are being conveyed by radiations or the like possible by grasping said materials between pairing conveying rolls thereby obviating the occurrence of their center run-out. CONSTITUTION:Tubular materials which are being conveyed are grasped between rolls under constant pressure, and these rolls are rotated abd driven so that the materials are conveyed without causing center run-out, then radiations are applied to the materials and the wall thicknesses of th tubes are measured by analyzing the intensities of the radiations transmitted therethrough. For example, a tubular material 1 is grasped between a pair of hourglass-shaped rolls 42 and 42a under constant pressure by the effect of a hydraulic cylinder 6, air cylinders 7, a cross member 12, etc., and if these rolls are driven by motors 10 and 10a, the above-mentioned tubular material is conveyed without causing center run-out. Hence, in the case of measuring its wall thickness by radiations or the like, the errors owing to center run- out which are usually observed are not produced, and the measurement results of high accuracy are obtained.
JP11352980A 1980-06-25 1980-08-20 Wall thickness measuring device provided with center run-out preventing device for tubular material Pending JPS5739302A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP11352980A JPS5739302A (en) 1980-08-20 1980-08-20 Wall thickness measuring device provided with center run-out preventing device for tubular material
US06/275,990 US4491731A (en) 1980-06-25 1981-06-22 Tube wall thickness measurement
FR8112395A FR2485719B1 (en) 1980-06-25 1981-06-24 METHOD AND DEVICE FOR MEASURING THE THICKNESS OF A TUBE WALL
CA000380493A CA1180131A (en) 1980-06-25 1981-06-24 Tube wall thickness measurement
DE19813125009 DE3125009A1 (en) 1980-06-25 1981-06-25 PIPE WALL THICKNESS MEASUREMENT
CA000438465A CA1171557A (en) 1980-06-25 1983-10-05 Tube wall thickness measurement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11352980A JPS5739302A (en) 1980-08-20 1980-08-20 Wall thickness measuring device provided with center run-out preventing device for tubular material

Publications (1)

Publication Number Publication Date
JPS5739302A true JPS5739302A (en) 1982-03-04

Family

ID=14614629

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11352980A Pending JPS5739302A (en) 1980-06-25 1980-08-20 Wall thickness measuring device provided with center run-out preventing device for tubular material

Country Status (1)

Country Link
JP (1) JPS5739302A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017049019A (en) * 2015-08-31 2017-03-09 株式会社 英田エンジニアリング Long-sized material length measuring apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017049019A (en) * 2015-08-31 2017-03-09 株式会社 英田エンジニアリング Long-sized material length measuring apparatus

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