JPS57206583A - Measuring methods for metal flow angle in weld zone of electric welded pipe - Google Patents

Measuring methods for metal flow angle in weld zone of electric welded pipe

Info

Publication number
JPS57206583A
JPS57206583A JP8881781A JP8881781A JPS57206583A JP S57206583 A JPS57206583 A JP S57206583A JP 8881781 A JP8881781 A JP 8881781A JP 8881781 A JP8881781 A JP 8881781A JP S57206583 A JPS57206583 A JP S57206583A
Authority
JP
Japan
Prior art keywords
flow angle
beads
accordance
metal flow
weld zone
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
JP8881781A
Other languages
Japanese (ja)
Other versions
JPS6025234B2 (en
Inventor
Kazuo Sano
Yutaka Mihara
Katsujiro Watabe
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 JP8881781A priority Critical patent/JPS6025234B2/en
Publication of JPS57206583A publication Critical patent/JPS57206583A/en
Publication of JPS6025234B2 publication Critical patent/JPS6025234B2/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)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Abstract

PURPOSE:To prevent the production of a defective product by controlling welding conditions in accordance with the result obtained by operating the metal flow angle of a weld zone in accordance with the result of detection of the bead shapes which are obtained by a beam cutting method. CONSTITUTION:Slit light 4 of a single wavelength is irradiated to the beads 1 of a blank pipe 2 under moving prior to bead cutting, and a beam cut profile 7 is picked up with an ITV camera 9. From the picked-up image signal, the surface position of the beads 1 corresponding to the prescribed height within the range of 3/4-1/3 the max. height of the beads on the basis of the rise position of the beads is detected. The metal flow angle of the weld zones is operated in accordance with the horizontal distance from the above-described rise position in said surface position and the above-described height. In this way, the welding is controlled in accordance with said flow angle and the production of defective products is prevented.
JP8881781A 1981-06-11 1981-06-11 Method for measuring metal flow angle of welded part of ERW welded pipe Expired JPS6025234B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8881781A JPS6025234B2 (en) 1981-06-11 1981-06-11 Method for measuring metal flow angle of welded part of ERW welded pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8881781A JPS6025234B2 (en) 1981-06-11 1981-06-11 Method for measuring metal flow angle of welded part of ERW welded pipe

Publications (2)

Publication Number Publication Date
JPS57206583A true JPS57206583A (en) 1982-12-17
JPS6025234B2 JPS6025234B2 (en) 1985-06-17

Family

ID=13953461

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8881781A Expired JPS6025234B2 (en) 1981-06-11 1981-06-11 Method for measuring metal flow angle of welded part of ERW welded pipe

Country Status (1)

Country Link
JP (1) JPS6025234B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4535215A (en) * 1982-10-20 1985-08-13 Hoesch Werke Ag Method and device for controlling the welding process in the manufacturing of pipes with longitudinal seams
GB2231417A (en) * 1989-05-08 1990-11-14 Gen Electric Bead wetting angle detection and control
US7619750B2 (en) * 2002-04-30 2009-11-17 Jfe Steel Corporation Measurement method and device for bead cutting shape in electric resistance welded pipes

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4535215A (en) * 1982-10-20 1985-08-13 Hoesch Werke Ag Method and device for controlling the welding process in the manufacturing of pipes with longitudinal seams
GB2231417A (en) * 1989-05-08 1990-11-14 Gen Electric Bead wetting angle detection and control
US7619750B2 (en) * 2002-04-30 2009-11-17 Jfe Steel Corporation Measurement method and device for bead cutting shape in electric resistance welded pipes

Also Published As

Publication number Publication date
JPS6025234B2 (en) 1985-06-17

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