JPS555123A - Synchronous controlling method for backing metal in one side automatic welding - Google Patents

Synchronous controlling method for backing metal in one side automatic welding

Info

Publication number
JPS555123A
JPS555123A JP7638878A JP7638878A JPS555123A JP S555123 A JPS555123 A JP S555123A JP 7638878 A JP7638878 A JP 7638878A JP 7638878 A JP7638878 A JP 7638878A JP S555123 A JPS555123 A JP S555123A
Authority
JP
Japan
Prior art keywords
backing metal
inputted
photodetector
output
automatic 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
JP7638878A
Other languages
Japanese (ja)
Other versions
JPS5847275B2 (en
Inventor
Hiroichi Nomura
Yukihiko Sato
Yoshikazu Sato
Motofumi Hirata
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 JP7638878A priority Critical patent/JPS5847275B2/en
Publication of JPS555123A publication Critical patent/JPS555123A/en
Publication of JPS5847275B2 publication Critical patent/JPS5847275B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To high accurately detect the relative position of the backing metal and the point just under the torch, and also, to achieve simultaneously the miniaturization of the detecting system and the removal of influence of the external light, by burying the photodetector in the backing metal being just facing against the molten metal, in the one side automatic welding.
CONSTITUTION: The emission of light from the arc at the point just under the torch 3 is detected by the respective photodetector 8a, 8b, through the transparent packing tape 6; the output of this photodetector is amplified 10a, 10b, and further, is inputted to the differential amplifier 11 for obtaining their deviation output. Next, this deviation output is inputted to the comparator 12, and is compared with the suitable synchronous travel signal being previously given by the setter 13, and then, the differential signal as the result of comparison is inputted to the controller 14 for the backing metal's traveling speed. Then, the speed of the driver 7 for self-traveling is controlled by the control signal output 15 of the controller 14.
COPYRIGHT: (C)1980,JPO&Japio
JP7638878A 1978-06-26 1978-06-26 Backing metal synchronous control method for single-sided automatic welding Expired JPS5847275B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7638878A JPS5847275B2 (en) 1978-06-26 1978-06-26 Backing metal synchronous control method for single-sided automatic welding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7638878A JPS5847275B2 (en) 1978-06-26 1978-06-26 Backing metal synchronous control method for single-sided automatic welding

Publications (2)

Publication Number Publication Date
JPS555123A true JPS555123A (en) 1980-01-16
JPS5847275B2 JPS5847275B2 (en) 1983-10-21

Family

ID=13603937

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7638878A Expired JPS5847275B2 (en) 1978-06-26 1978-06-26 Backing metal synchronous control method for single-sided automatic welding

Country Status (1)

Country Link
JP (1) JPS5847275B2 (en)

Also Published As

Publication number Publication date
JPS5847275B2 (en) 1983-10-21

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