JPS5633713A - Direct current arc electric power source - Google Patents
Direct current arc electric power sourceInfo
- Publication number
- JPS5633713A JPS5633713A JP10930879A JP10930879A JPS5633713A JP S5633713 A JPS5633713 A JP S5633713A JP 10930879 A JP10930879 A JP 10930879A JP 10930879 A JP10930879 A JP 10930879A JP S5633713 A JPS5633713 A JP S5633713A
- Authority
- JP
- Japan
- Prior art keywords
- arc
- thyristor
- output
- control
- voltage
- 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
- Control Of Voltage And Current In General (AREA)
Abstract
PURPOSE: To eliminate the unsteady state of the arc and thus prevent completely the defect of welding, by detecting directly the fluctuation of voltage of the AC power source and thus ensuring the output control of the DC arc for welding.
CONSTITUTION: The AC voltage supplied to the main transformer 12 is converted into the DC voltage via the thyristor 14, and the DC are 20 is produced between the electrode 16 and the object 18 to be welded. In this instant, a phase control in a range of 0Wπ(rad) is given to the AC voltage 61 of the sine waveform supplied to the transformer 12 through a control given to the ignition angle of the thyristor 14. And thus the output 62 is given to the arc 20 in the form of the cosine waveform. Accordingly, the output to the arc 20 decreases gradually according to the increment of the ignition angle of the thyristor 14. As a result, the output to the arc 20 can be set to an optional value by giving a control to the ignition angle of the thyristor 14 by the ignition pulse delivered from the pulse circuit 44 of the control part 30.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10930879A JPS5633713A (en) | 1979-08-28 | 1979-08-28 | Direct current arc electric power source |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10930879A JPS5633713A (en) | 1979-08-28 | 1979-08-28 | Direct current arc electric power source |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5633713A true JPS5633713A (en) | 1981-04-04 |
Family
ID=14506901
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10930879A Pending JPS5633713A (en) | 1979-08-28 | 1979-08-28 | Direct current arc electric power source |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5633713A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5462595A (en) * | 1977-10-26 | 1979-05-19 | Inoue Japax Res Inc | Electrical discharge machine |
-
1979
- 1979-08-28 JP JP10930879A patent/JPS5633713A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5462595A (en) * | 1977-10-26 | 1979-05-19 | Inoue Japax Res Inc | Electrical discharge machine |
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