JPS564376A - Direct current tig welding machine - Google Patents
Direct current tig welding machineInfo
- Publication number
- JPS564376A JPS564376A JP7951079A JP7951079A JPS564376A JP S564376 A JPS564376 A JP S564376A JP 7951079 A JP7951079 A JP 7951079A JP 7951079 A JP7951079 A JP 7951079A JP S564376 A JPS564376 A JP S564376A
- Authority
- JP
- Japan
- Prior art keywords
- arc
- circuit
- starting
- arc starting
- superposing
- 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
Links
Landscapes
- Arc Welding Control (AREA)
- Arc Welding In General (AREA)
Abstract
PURPOSE: To achieve the smoothing of arc starting by providing an arc starting circuit which flows the electric current larger than the electric current of a superposing circuit at the arc starting and cutting off the arc starting circuit after the arc starting.
CONSTITUTION: When the contacts S1WS3 for arc starting are turned ON at the arc starting, the AC voltage of a superposing voltage transformer T2 is rectified by the rectifying diode D7 of an arc starting circuit 3 and outputs the starting electric currect by way of a starting-current-limiting resistance R2. This is 10A or more in peak value and flows together with the superposing current of a superposing circuit 2 into a tungsten electrode TD thereby heating the same until it releases thermions and letting arc be generated. When arc is started and the electric current from the main circuit 1 is output, a current-detecting relay RL is driven to turn OFF its (b) contact S4, by which the arc starting circuit is cut off.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7951079A JPS564376A (en) | 1979-06-22 | 1979-06-22 | Direct current tig welding machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7951079A JPS564376A (en) | 1979-06-22 | 1979-06-22 | Direct current tig welding machine |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS564376A true JPS564376A (en) | 1981-01-17 |
JPS6320629B2 JPS6320629B2 (en) | 1988-04-28 |
Family
ID=13691944
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7951079A Granted JPS564376A (en) | 1979-06-22 | 1979-06-22 | Direct current tig welding machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS564376A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59166371A (en) * | 1983-03-10 | 1984-09-19 | Nippon Steel Weld Prod & Eng Co Ltd | Controlling method of starting in current change welding method |
JPS6064776A (en) * | 1983-09-20 | 1985-04-13 | Daihen Corp | Dc tig arc welding method |
JP2014151325A (en) * | 2013-02-05 | 2014-08-25 | Tdk Corp | Welding device |
-
1979
- 1979-06-22 JP JP7951079A patent/JPS564376A/en active Granted
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59166371A (en) * | 1983-03-10 | 1984-09-19 | Nippon Steel Weld Prod & Eng Co Ltd | Controlling method of starting in current change welding method |
JPH0322261B2 (en) * | 1983-03-10 | 1991-03-26 | Nippon Steel Welding Prod Eng | |
JPS6064776A (en) * | 1983-09-20 | 1985-04-13 | Daihen Corp | Dc tig arc welding method |
JPH0557073B2 (en) * | 1983-09-20 | 1993-08-23 | Daihen Corp | |
JP2014151325A (en) * | 2013-02-05 | 2014-08-25 | Tdk Corp | Welding device |
Also Published As
Publication number | Publication date |
---|---|
JPS6320629B2 (en) | 1988-04-28 |
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