JPS5762872A - Method and device for monitoring welding in gas shielded arc welding - Google Patents

Method and device for monitoring welding in gas shielded arc welding

Info

Publication number
JPS5762872A
JPS5762872A JP13609280A JP13609280A JPS5762872A JP S5762872 A JPS5762872 A JP S5762872A JP 13609280 A JP13609280 A JP 13609280A JP 13609280 A JP13609280 A JP 13609280A JP S5762872 A JPS5762872 A JP S5762872A
Authority
JP
Japan
Prior art keywords
intensity
arc
spectral lines
lines
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
JP13609280A
Other languages
Japanese (ja)
Inventor
Noboru Sugiyama
Yutaka Nishikawa
Morihiko Sugino
Tetsuo Suga
Masayoshi Iwasaki
Toshiro Nakatsuka
Yasuhide Nakai
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 JP13609280A priority Critical patent/JPS5762872A/en
Publication of JPS5762872A publication Critical patent/JPS5762872A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To detect the inclusion of air into an arc part directly, accurately, and quickly by detecting the intensity of the spectral lines of nitrogen in particular released from the arc.
CONSTITUTION: The intensity of the nitrogen spectral lines of the specific wavelength region where detection sensitivity to air inclusion is high released from the welding arc is detected with the intensity of the background lines near the same or the intensity of the spectral lines of the arc constituting components as a reference. If this welding arc is a TIG arc, the peak line and the like of a shielding gas are used. Thence, said detected value is compared with the preset reference value, whereby the air inclusion into the arc part is detected directly, accurately and quickly. It is preferable to detect the intensity of the nitrogen spectral lines particularly in terms of a ratio with the background value near the wavelength thereof or the intensity value of the spectral of the arc constituting components as a reference. Out of the spectral lines of N, the wavelength region near 4630.6Å or 5679.6Å is optimum because there are less disturbing lines and the intensity is higher than the spectral lines of other wavelength regions.
COPYRIGHT: (C)1982,JPO&Japio
JP13609280A 1980-09-29 1980-09-29 Method and device for monitoring welding in gas shielded arc welding Pending JPS5762872A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13609280A JPS5762872A (en) 1980-09-29 1980-09-29 Method and device for monitoring welding in gas shielded arc welding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13609280A JPS5762872A (en) 1980-09-29 1980-09-29 Method and device for monitoring welding in gas shielded arc welding

Publications (1)

Publication Number Publication Date
JPS5762872A true JPS5762872A (en) 1982-04-16

Family

ID=15167065

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13609280A Pending JPS5762872A (en) 1980-09-29 1980-09-29 Method and device for monitoring welding in gas shielded arc welding

Country Status (1)

Country Link
JP (1) JPS5762872A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5999334A (en) * 1982-11-30 1984-06-08 Seiko Instr & Electronics Ltd Emission spectrochemical analysis apparatus
JPS6319249U (en) * 1986-07-21 1988-02-08

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5999334A (en) * 1982-11-30 1984-06-08 Seiko Instr & Electronics Ltd Emission spectrochemical analysis apparatus
JPS6319249U (en) * 1986-07-21 1988-02-08

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