JPS559114A - Method of measuring exfoliation characteristic of wire rod by acoustic emission - Google Patents

Method of measuring exfoliation characteristic of wire rod by acoustic emission

Info

Publication number
JPS559114A
JPS559114A JP8149578A JP8149578A JPS559114A JP S559114 A JPS559114 A JP S559114A JP 8149578 A JP8149578 A JP 8149578A JP 8149578 A JP8149578 A JP 8149578A JP S559114 A JPS559114 A JP S559114A
Authority
JP
Japan
Prior art keywords
wire rod
exfoliation
acoustic emission
sound
roller
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.)
Granted
Application number
JP8149578A
Other languages
Japanese (ja)
Other versions
JPS5825223B2 (en
Inventor
Mutsuo Mizusawa
Tsuneo Kuwahata
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.)
Nippon Steel Corp
Original Assignee
Nippon 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 Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP8149578A priority Critical patent/JPS5825223B2/en
Publication of JPS559114A publication Critical patent/JPS559114A/en
Publication of JPS5825223B2 publication Critical patent/JPS5825223B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

PURPOSE: To enable the measuring of exfoliation characteristic of wire rod which corresponds to its actual working hours by detecting the sound caused by scale exfoliation which is generated at the time of bending test piece using a roller having the same curvature as of the bending roller used at the mechanical descaler.
CONSTITUTION: When test piece of wire rod is bent using bending roller 2 having the same curvature as of the bending roller being used at the mechanical descaler, a sound is generated because of the exfoliation of scale of the wire rod 5. This sound is detected by the sensor 4 for acoustic emission and the acoustic emission apparatus 6 which is contacted to the roller 2 via contact medium such as grease, and the generated sound wave pattern is recorded at the recorder 7 such as pen-recorder, or the accumulated sum of the sound wave pattern is counted by a counter. By so doing, measurement of the mechanical scale exfoliation which corresponds to the actual working hours of the wire rod can be performed with ease and high reliability.
COPYRIGHT: (C)1980,JPO&Japio
JP8149578A 1978-07-06 1978-07-06 Measuring method of mechanical peeling characteristics of wire rod scale by Acoustic compression method Expired JPS5825223B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8149578A JPS5825223B2 (en) 1978-07-06 1978-07-06 Measuring method of mechanical peeling characteristics of wire rod scale by Acoustic compression method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8149578A JPS5825223B2 (en) 1978-07-06 1978-07-06 Measuring method of mechanical peeling characteristics of wire rod scale by Acoustic compression method

Publications (2)

Publication Number Publication Date
JPS559114A true JPS559114A (en) 1980-01-23
JPS5825223B2 JPS5825223B2 (en) 1983-05-26

Family

ID=13747959

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8149578A Expired JPS5825223B2 (en) 1978-07-06 1978-07-06 Measuring method of mechanical peeling characteristics of wire rod scale by Acoustic compression method

Country Status (1)

Country Link
JP (1) JPS5825223B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5782573A (en) * 1980-11-05 1982-05-24 Matsumoto Yushi Seiyaku Kk Smoothening treatment agent for thermoplastic synthetic fiber
JP2008098024A (en) * 2006-10-13 2008-04-24 Daido Signal Co Ltd Multipolar connector

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5782573A (en) * 1980-11-05 1982-05-24 Matsumoto Yushi Seiyaku Kk Smoothening treatment agent for thermoplastic synthetic fiber
JPS6153473B2 (en) * 1980-11-05 1986-11-18 Matsumoto Yushi Seiyaku Kk
JP2008098024A (en) * 2006-10-13 2008-04-24 Daido Signal Co Ltd Multipolar connector

Also Published As

Publication number Publication date
JPS5825223B2 (en) 1983-05-26

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