JPS57139481A - Weld metal flow angle measuring method of welded tube - Google Patents

Weld metal flow angle measuring method of welded tube

Info

Publication number
JPS57139481A
JPS57139481A JP2290281A JP2290281A JPS57139481A JP S57139481 A JPS57139481 A JP S57139481A JP 2290281 A JP2290281 A JP 2290281A JP 2290281 A JP2290281 A JP 2290281A JP S57139481 A JPS57139481 A JP S57139481A
Authority
JP
Japan
Prior art keywords
bead
optical cutting
metal flow
flow angle
welding
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
JP2290281A
Other languages
Japanese (ja)
Other versions
JPS607586B2 (en
Inventor
Kazuo Sano
Yutaka Mihara
Katsujiro Watanabe
Toshio Okawa
Koji Suzuki
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 Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan Ltd
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 NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP2290281A priority Critical patent/JPS607586B2/en
Publication of JPS57139481A publication Critical patent/JPS57139481A/en
Publication of JPS607586B2 publication Critical patent/JPS607586B2/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B23K11/24—Electric supply or control circuits therefor
    • B23K11/25—Monitoring devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

PURPOSE:To operate a metal flow angle immediately after welding by a real time, and to suppress generation of a defective to the minimum, by detecting the height and width of a bead from an optical cutting profile detecting information immediately after welding, which has been obtained by the optical cutting method. CONSTITUTION:A slit light beam 4 is irradiated to a bead 1 immediately after welding of a material tube 2 and its peripheral part, an optical cutting profile 7 passes through a narrow-band interference filter 8, is received by an ITV camera 9, is sent to a frame memory 10 and a picture data is recorded. From a sampling line selecting signal generating circuit 11, a longitudinal scanning signal is inputted to the frame memory 10, and at every longitudinal scanning signal, a received picture of the optical cutting profile 7 is detected by a maximum lumimance detecting circuit 12. Also, in a geometric exponent operating circuit 14, width of the bead is derived and moreover height of the bead is derived. In this way, a metal flow angle is operated by the circuit 14.
JP2290281A 1981-02-20 1981-02-20 Method for measuring metal flow angle of welded part of ERW welded pipe Expired JPS607586B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2290281A JPS607586B2 (en) 1981-02-20 1981-02-20 Method for measuring metal flow angle of welded part of ERW welded pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2290281A JPS607586B2 (en) 1981-02-20 1981-02-20 Method for measuring metal flow angle of welded part of ERW welded pipe

Publications (2)

Publication Number Publication Date
JPS57139481A true JPS57139481A (en) 1982-08-28
JPS607586B2 JPS607586B2 (en) 1985-02-26

Family

ID=12095569

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2290281A Expired JPS607586B2 (en) 1981-02-20 1981-02-20 Method for measuring metal flow angle of welded part of ERW welded pipe

Country Status (1)

Country Link
JP (1) JPS607586B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2646624A1 (en) * 1989-05-08 1990-11-09 Gen Electric METHOD AND SYSTEM FOR DETECTING AND SERVING THE WELD ANGLE OF A WELD CORD

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01153485U (en) * 1988-04-13 1989-10-23

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2646624A1 (en) * 1989-05-08 1990-11-09 Gen Electric METHOD AND SYSTEM FOR DETECTING AND SERVING THE WELD ANGLE OF A WELD CORD
GB2231417A (en) * 1989-05-08 1990-11-14 Gen Electric Bead wetting angle detection and control

Also Published As

Publication number Publication date
JPS607586B2 (en) 1985-02-26

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