JPS5711775A - Direct current arc welding machine - Google Patents
Direct current arc welding machineInfo
- Publication number
- JPS5711775A JPS5711775A JP8730180A JP8730180A JPS5711775A JP S5711775 A JPS5711775 A JP S5711775A JP 8730180 A JP8730180 A JP 8730180A JP 8730180 A JP8730180 A JP 8730180A JP S5711775 A JPS5711775 A JP S5711775A
- Authority
- JP
- Japan
- Prior art keywords
- thyristors
- circuit
- reactor
- elements
- switching element
- 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 Control (AREA)
Abstract
PURPOSE: To obtain stable welding current by connecting series circuits of impedance elements and switching elements which switch in synchronization with welding start and stop signals in parallel with the control elements on the primary side of a welding transformer.
CONSTITUTION: A series circuit of an AC reactor 8a and a switching element 7a is connected in parallel with an antiparallel circuit of thyristors 4a, 4a', and similarly to this, a series circuit of an AC reactor 8b and a switching element 7b is connected in parallell with an antiparallel circuit of thyristors 4b, 4b' and a series circuit of an AC reactor 8c and a switching element 7c with an antiparallel circuit of thyristors 4c, 4c'. Then, even if the phases of the conduction angles of the thyristors 4aW4c, 4a'W4c' go to ≥60°, voltage is applied through the elements 7aW7c and the reactors 8aW8c; therefore, no zero sections of the output voltage are produced, hence ripples are less.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8730180A JPS5711775A (en) | 1980-06-26 | 1980-06-26 | Direct current arc welding machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8730180A JPS5711775A (en) | 1980-06-26 | 1980-06-26 | Direct current arc welding machine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5711775A true JPS5711775A (en) | 1982-01-21 |
Family
ID=13910997
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8730180A Pending JPS5711775A (en) | 1980-06-26 | 1980-06-26 | Direct current arc welding machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5711775A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5912614U (en) * | 1982-07-16 | 1984-01-26 | 三ツ星ベルト株式会社 | Molding mold |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5334654A (en) * | 1976-09-14 | 1978-03-31 | Matsushita Electric Ind Co Ltd | Electric power source for dc arc welding |
JPS542954A (en) * | 1977-06-09 | 1979-01-10 | Matsushita Electric Ind Co Ltd | Powe source circuit of direct current arc welding equipment |
-
1980
- 1980-06-26 JP JP8730180A patent/JPS5711775A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5334654A (en) * | 1976-09-14 | 1978-03-31 | Matsushita Electric Ind Co Ltd | Electric power source for dc arc welding |
JPS542954A (en) * | 1977-06-09 | 1979-01-10 | Matsushita Electric Ind Co Ltd | Powe source circuit of direct current arc welding equipment |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5912614U (en) * | 1982-07-16 | 1984-01-26 | 三ツ星ベルト株式会社 | Molding mold |
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