JPS57165188A - Controlling method for welding of electric welded pipe - Google Patents

Controlling method for welding of electric welded pipe

Info

Publication number
JPS57165188A
JPS57165188A JP4898381A JP4898381A JPS57165188A JP S57165188 A JPS57165188 A JP S57165188A JP 4898381 A JP4898381 A JP 4898381A JP 4898381 A JP4898381 A JP 4898381A JP S57165188 A JPS57165188 A JP S57165188A
Authority
JP
Japan
Prior art keywords
temp
welding
butt
pipe
welded
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
JP4898381A
Other languages
Japanese (ja)
Other versions
JPH0241399B2 (en
Inventor
Chiharu Takamadate
Michio Okada
Hiroshi Suwada
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
Sumitomo Metal Industries 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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP4898381A priority Critical patent/JPS57165188A/en
Publication of JPS57165188A publication Critical patent/JPS57165188A/en
Publication of JPH0241399B2 publication Critical patent/JPH0241399B2/ja
Granted 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
    • B23K11/08—Seam welding not restricted to one of the preceding subgroups
    • B23K11/087—Seam welding not restricted to one of the preceding subgroups for rectilinear seams
    • B23K11/0873—Seam welding not restricted to one of the preceding subgroups for rectilinear seams of the longitudinal seam of tubes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Heat Treatment Of Articles (AREA)
  • Radiation Pyrometers (AREA)

Abstract

PURPOSE:To prevent the generation of weld defects and to improve the quality of an electric welded pipe by heating the opposite end faces to be butt-welded, and controlling the heating in such a way that the min. temp. position thereof attains the predetermined min. welding temp. or above. CONSTITUTION:The min. temp. of an open pipe OP to be butt-welded is determined in accordance with the temp. distributions in the wall thickness direction of the end faces FF in the edge parts of said pipe. This is compared with the predetermined reference value, and welding conditions is so set and controlled that the entire part of the end face EF is heated to at least the min. welding temp. or above when the part showing the min. temp. is at the butt point 0.
JP4898381A 1981-03-31 1981-03-31 Controlling method for welding of electric welded pipe Granted JPS57165188A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4898381A JPS57165188A (en) 1981-03-31 1981-03-31 Controlling method for welding of electric welded pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4898381A JPS57165188A (en) 1981-03-31 1981-03-31 Controlling method for welding of electric welded pipe

Publications (2)

Publication Number Publication Date
JPS57165188A true JPS57165188A (en) 1982-10-12
JPH0241399B2 JPH0241399B2 (en) 1990-09-17

Family

ID=12818471

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4898381A Granted JPS57165188A (en) 1981-03-31 1981-03-31 Controlling method for welding of electric welded pipe

Country Status (1)

Country Link
JP (1) JPS57165188A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62203680A (en) * 1985-11-22 1987-09-08 Kawasaki Steel Corp Monitoring method for welding state
JP2011000642A (en) * 2007-11-02 2011-01-06 Nippon Steel Corp Welded state monitoring device and method
EP3127646A4 (en) * 2014-04-03 2017-12-13 Nippon Steel & Sumitomo Metal Corporation Welded state monitoring system and welded state monitoring method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62203680A (en) * 1985-11-22 1987-09-08 Kawasaki Steel Corp Monitoring method for welding state
JPH0334431B2 (en) * 1985-11-22 1991-05-22 Kawasaki Steel Co
JP2011000642A (en) * 2007-11-02 2011-01-06 Nippon Steel Corp Welded state monitoring device and method
EP2221137A4 (en) * 2007-11-02 2017-02-08 Nippon Steel & Sumitomo Metal Corporation Welded state monitoring device and method
EP3127646A4 (en) * 2014-04-03 2017-12-13 Nippon Steel & Sumitomo Metal Corporation Welded state monitoring system and welded state monitoring method
US10262412B2 (en) 2014-04-03 2019-04-16 Nippon Steel & Sumitomo Metal Corporation Welded state monitoring system and welded state monitoring method

Also Published As

Publication number Publication date
JPH0241399B2 (en) 1990-09-17

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