JPS54159352A - Welding method for continuous formation of short tube - Google Patents

Welding method for continuous formation of short tube

Info

Publication number
JPS54159352A
JPS54159352A JP6868578A JP6868578A JPS54159352A JP S54159352 A JPS54159352 A JP S54159352A JP 6868578 A JP6868578 A JP 6868578A JP 6868578 A JP6868578 A JP 6868578A JP S54159352 A JPS54159352 A JP S54159352A
Authority
JP
Japan
Prior art keywords
tube
welding
short tube
welding method
detecting element
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
JP6868578A
Other languages
Japanese (ja)
Inventor
Wataru Shimada
Kazumichi Machida
Takaharu Ueda
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP6868578A priority Critical patent/JPS54159352A/en
Publication of JPS54159352A publication Critical patent/JPS54159352A/en
Pending legal-status Critical Current

Links

Landscapes

  • Butt Welding And Welding Of Specific Article (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

PURPOSE: To stabilize the welding for the formation of tube, and to contrive the high efficiency and high quality of the work, by detecting every end of every short tube being supplied continuously, and by simultaneously changing the welding speed and the condition of welding curent for each point of a short tube.
CONSTITUTION: The tube end of the short tube 2 being supplied continuously to the squeeze roll 3 is detected by the detecting element 11 consisting of the photoelectric tube or phototransistor, etc. At this detection of the transit zone between the tube ends, if a certain offset is caused between the welding position and the detecting element 11, a signal is produced to the circuit for controlling conditions of welding speed and welding current, after a specified lag of time. As a result, the generation of the sideways penetration 9 at the end of the short tube and the longitudinal crack 10 of the bead can be effectively prevented.
COPYRIGHT: (C)1979,JPO&Japio
JP6868578A 1978-06-07 1978-06-07 Welding method for continuous formation of short tube Pending JPS54159352A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6868578A JPS54159352A (en) 1978-06-07 1978-06-07 Welding method for continuous formation of short tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6868578A JPS54159352A (en) 1978-06-07 1978-06-07 Welding method for continuous formation of short tube

Publications (1)

Publication Number Publication Date
JPS54159352A true JPS54159352A (en) 1979-12-17

Family

ID=13380832

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6868578A Pending JPS54159352A (en) 1978-06-07 1978-06-07 Welding method for continuous formation of short tube

Country Status (1)

Country Link
JP (1) JPS54159352A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59209486A (en) * 1983-05-12 1984-11-28 Furukawa Electric Co Ltd:The Production of metallic pipe

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59209486A (en) * 1983-05-12 1984-11-28 Furukawa Electric Co Ltd:The Production of metallic pipe
JPH0252587B2 (en) * 1983-05-12 1990-11-14 Furukawa Electric Co Ltd

Similar Documents

Publication Publication Date Title
JPS54159352A (en) Welding method for continuous formation of short tube
JPS5366168A (en) Detection method for wire disconnection
JPS53112593A (en) Method for removing welding fins of steel band
JPS558336A (en) Bead forming method in automatic arc welding
JPS5764410A (en) Controlling method for velocity of pinch roll
JPS5536104A (en) Automatic narrow gap welding method
JPS5458655A (en) Controlling method for resistance spot welding
JPS5420933A (en) Control method of piping welding machine
JPS6431574A (en) Consumable electrode type and welding method
JPS5292742A (en) Measuring method for welding groove gap
JPS5586613A (en) Automatic slowdown controller for rolling mill
JPS5516743A (en) Automatic circumferential welder for fixed pipe
JPS5418440A (en) Coil positioning apparatus of welder for steel process line
JPS5270291A (en) Method and apparatus for controlling material intervals
JPS56134077A (en) Automatic intermittent fillet welding control method
JPS51120197A (en) Method of examining vehicle detector
JPS5682112A (en) Controlling method for side guide of strip in side trimming line
JPS5364742A (en) Detection method of abnormal portion in electric network
JPS5762879A (en) Control system for material to be welded of welding machine for continuous rolling
JPS53134748A (en) Method of judging quality of weld
JPS5292779A (en) Method of flaw detection for rolls
JPS56154283A (en) Multielectrode automatic arc welding method
JPS5524782A (en) Method for welding open pipe and its apparatus
JPS54162311A (en) Vehicle position detecting apparatus
JPS6431523A (en) Detecting method for weld zone of strip material