JPS6463854A - Automatic flaw detection of wire rod - Google Patents

Automatic flaw detection of wire rod

Info

Publication number
JPS6463854A
JPS6463854A JP62220874A JP22087487A JPS6463854A JP S6463854 A JPS6463854 A JP S6463854A JP 62220874 A JP62220874 A JP 62220874A JP 22087487 A JP22087487 A JP 22087487A JP S6463854 A JPS6463854 A JP S6463854A
Authority
JP
Japan
Prior art keywords
wire rod
flaw
inspected
detection
detection coil
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
JP62220874A
Other languages
Japanese (ja)
Inventor
Yoshiyuki Aiba
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.)
Aichi Steel Corp
Original Assignee
Aichi 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 Aichi Steel Corp filed Critical Aichi Steel Corp
Priority to JP62220874A priority Critical patent/JPS6463854A/en
Publication of JPS6463854A publication Critical patent/JPS6463854A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/16—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section
    • B21B1/18—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section in a continuous process

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)

Abstract

PURPOSE:To enhance the detection capacity of a flaw, by inspecting a wire rod to be inspected over the total length thereof and passing the wire rod through a detection coil at the almost center thereof. CONSTITUTION:A detection coil 7 having an inner diameter optimizing the gap with a wire material 20 to be inspected is mounted to a feed process and the height thereof is regulated so as to pass the wire rod 20 to be inspected through the almost central part of the detection coil 7. A detection range is set to an eddy current flaw detector 61 according to the detail specifying the wire rod 20 and the flaw generated on the surface of the wire rod 20 is continuously detected through the detection coil 7 to be sent to a signal processor 62. The signal processor 62 processes the signal of a level larger than the threshold value set at every kind of a flaw as a flaw according to the detail relating to the wire rod 20 and counts the number of flaws per a unit wt. or length to classify the kinds of flaws and displays the same on a display means automatically and visibly at each time when the flaw detection of one wire material 20 to be inspected is finished.
JP62220874A 1987-09-03 1987-09-03 Automatic flaw detection of wire rod Pending JPS6463854A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62220874A JPS6463854A (en) 1987-09-03 1987-09-03 Automatic flaw detection of wire rod

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62220874A JPS6463854A (en) 1987-09-03 1987-09-03 Automatic flaw detection of wire rod

Publications (1)

Publication Number Publication Date
JPS6463854A true JPS6463854A (en) 1989-03-09

Family

ID=16757890

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62220874A Pending JPS6463854A (en) 1987-09-03 1987-09-03 Automatic flaw detection of wire rod

Country Status (1)

Country Link
JP (1) JPS6463854A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2720303A3 (en) * 1994-05-31 1995-12-01 Unimetall Sa Surface fault detector for wire
JP2012208064A (en) * 2011-03-30 2012-10-25 Kobe Steel Ltd Eddy current flaw detector and bar steel rolling line with eddy current flaw detector
JP2019200157A (en) * 2018-05-17 2019-11-21 株式会社島津製作所 Magnetic substance inspection system and program

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2720303A3 (en) * 1994-05-31 1995-12-01 Unimetall Sa Surface fault detector for wire
JP2012208064A (en) * 2011-03-30 2012-10-25 Kobe Steel Ltd Eddy current flaw detector and bar steel rolling line with eddy current flaw detector
JP2019200157A (en) * 2018-05-17 2019-11-21 株式会社島津製作所 Magnetic substance inspection system and program

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