JPS56109186A - Monitoring method for shielding gas for welding - Google Patents
Monitoring method for shielding gas for weldingInfo
- Publication number
- JPS56109186A JPS56109186A JP1230880A JP1230880A JPS56109186A JP S56109186 A JPS56109186 A JP S56109186A JP 1230880 A JP1230880 A JP 1230880A JP 1230880 A JP1230880 A JP 1230880A JP S56109186 A JPS56109186 A JP S56109186A
- Authority
- JP
- Japan
- Prior art keywords
- shielding gas
- amount
- welding
- air
- reactor
- 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
Links
Landscapes
- Arc Welding In General (AREA)
Abstract
PURPOSE: To prevent the cocurrence of welding defects by detecting the amount of the inclusion of air into a shielding gas from the amount of NO2 obtained by oxidizing the sample of the shielding gas and controlling said amount rapidly and accurately in a shielding gas welding method.
CONSTITUTION: The arc 3 is generated between a W electrode 1 and the material 2 to be welded, and the circumference of a weld zone 2A is shielded by an Ar gas 5 released from a shielding gas nozzle 4. During welding, a part of the shielding gas 5 is sampled by a sampling probe 7, and is sent into a reactor 8 made of quartz glass. The NOx in the shielding gas in the reactor 8 is oxidized to NO2 by the ultraviolet rays 9 radiated from the welding arc 3 and the amount thereof is measured with a visible absorption type NO2 measuring device 10. From the value thus measured, the amount of the air included in the shielding gas 5 is estimated, and the amount of the included air is decreased, whereby the occurrence of welding defects is prevented.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1230880A JPS56109186A (en) | 1980-02-04 | 1980-02-04 | Monitoring method for shielding gas for welding |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1230880A JPS56109186A (en) | 1980-02-04 | 1980-02-04 | Monitoring method for shielding gas for welding |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56109186A true JPS56109186A (en) | 1981-08-29 |
Family
ID=11801679
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1230880A Pending JPS56109186A (en) | 1980-02-04 | 1980-02-04 | Monitoring method for shielding gas for welding |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56109186A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60195064A (en) * | 1984-03-15 | 1985-10-03 | 日本特殊陶業株式会社 | Fiber reinforced composite ceramics and manufacture |
US5918793A (en) * | 1994-08-03 | 1999-07-06 | Kopke, Sr.; William Peter | Weld test apparatus and method |
-
1980
- 1980-02-04 JP JP1230880A patent/JPS56109186A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60195064A (en) * | 1984-03-15 | 1985-10-03 | 日本特殊陶業株式会社 | Fiber reinforced composite ceramics and manufacture |
JPH0536384B2 (en) * | 1984-03-15 | 1993-05-28 | Ngk Spark Plug Co | |
US5918793A (en) * | 1994-08-03 | 1999-07-06 | Kopke, Sr.; William Peter | Weld test apparatus and method |
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