JPS5458645A - Butt tack welding method for steel pipe - Google Patents

Butt tack welding method for steel pipe

Info

Publication number
JPS5458645A
JPS5458645A JP12642677A JP12642677A JPS5458645A JP S5458645 A JPS5458645 A JP S5458645A JP 12642677 A JP12642677 A JP 12642677A JP 12642677 A JP12642677 A JP 12642677A JP S5458645 A JPS5458645 A JP S5458645A
Authority
JP
Japan
Prior art keywords
pipe
dislocation
welding
detector
tack 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.)
Pending
Application number
JP12642677A
Other languages
Japanese (ja)
Inventor
Yoshimasa Okubo
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.)
Kobe Steel Ltd
Original Assignee
Kobe Steel 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 Kobe Steel Ltd filed Critical Kobe Steel Ltd
Priority to JP12642677A priority Critical patent/JPS5458645A/en
Publication of JPS5458645A publication Critical patent/JPS5458645A/en
Pending legal-status Critical Current

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  • Butt Welding And Welding Of Specific Article (AREA)

Abstract

PURPOSE: To accurately and effectively carry out the tack welding, by rotating expanding and squeezing apparatus correcting the dislocation of groove line at the inside of pipe and providing the dislocation detector just before the tack weld zone.
CONSTITUTION: The pipe 1, 2 are placed on the turning roller 6 and the expanding and squeezing apparatus 10 is inserted in the groove line in the pipe. The squeezing rod 12 is projected by inducing oil pressure and next, the squeezing rod 11 is projected and is energized. Tack welding is carried out by the welding machine 20 stopping the induction of oil pressure, when the permissible limit of dislocation is dectected by the dislocation detector 50. The tack welding of the pipe is carried out rotating by the roller 6 and the apparatus 10 is rorated continuing stretching by the order of the detector. Welding is interrupted when the dislocation is detected by the detector 50 and energizing of the apparatus 10 is removed stopping the rotation of the pipe and the welding is continued stretching again unitil disloction is not detected
COPYRIGHT: (C)1979,JPO&Japio
JP12642677A 1977-10-20 1977-10-20 Butt tack welding method for steel pipe Pending JPS5458645A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12642677A JPS5458645A (en) 1977-10-20 1977-10-20 Butt tack welding method for steel pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12642677A JPS5458645A (en) 1977-10-20 1977-10-20 Butt tack welding method for steel pipe

Publications (1)

Publication Number Publication Date
JPS5458645A true JPS5458645A (en) 1979-05-11

Family

ID=14934877

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12642677A Pending JPS5458645A (en) 1977-10-20 1977-10-20 Butt tack welding method for steel pipe

Country Status (1)

Country Link
JP (1) JPS5458645A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102091904A (en) * 2011-03-04 2011-06-15 天津修船技术研究所 Hydraulic pressure roller frame
CN104842100A (en) * 2015-04-27 2015-08-19 德清信丰机械有限公司 Automatic circle welding device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102091904A (en) * 2011-03-04 2011-06-15 天津修船技术研究所 Hydraulic pressure roller frame
CN104842100A (en) * 2015-04-27 2015-08-19 德清信丰机械有限公司 Automatic circle welding device

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