JPS555183A - Arc welder - Google Patents
Arc welderInfo
- Publication number
- JPS555183A JPS555183A JP7934978A JP7934978A JPS555183A JP S555183 A JPS555183 A JP S555183A JP 7934978 A JP7934978 A JP 7934978A JP 7934978 A JP7934978 A JP 7934978A JP S555183 A JPS555183 A JP S555183A
- Authority
- JP
- Japan
- Prior art keywords
- scr
- current
- welding
- terminal
- scrs
- 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
Abstract
PURPOSE: To enable stable arc to be obtained with a simple constitution by series connecting welding load and two reactors to the secondary side of a transformer and parallel connecting SCRs to both ends of the respective reactors thereby making the current supplying directions of the two SCRs with respect to the welding load opposite.
CONSTITUTION: When the output terminal (a) of the secondary winding of a welding transformer 1 is + and (b) is - and when an SCR 2a is conducting, current flows in the order of the terminal (a), SCR 2a, welding torch 3, arc 4, base metal 5, reactor 6b, terminal (b). When the current begins to decrease, an induced voltage which forward biases the SCR 2b is generated in the reactor 6b and tries to continue to flow the current in te same direction even after the polarity inversion of the terminals (a), (b). Here, the SCR 2b goes ON and the SCR 2a OFF when a gate signal is inputted. The current abruptly inverts its polarity, thus the welding current close to square waves and good commutation may be obtained.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7934978A JPS555183A (en) | 1978-06-29 | 1978-06-29 | Arc welder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7934978A JPS555183A (en) | 1978-06-29 | 1978-06-29 | Arc welder |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS555183A true JPS555183A (en) | 1980-01-16 |
Family
ID=13687415
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7934978A Pending JPS555183A (en) | 1978-06-29 | 1978-06-29 | Arc welder |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS555183A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0476802A (en) * | 1990-07-18 | 1992-03-11 | Hitachi Ltd | Video tape recorder |
US6514598B1 (en) | 1998-10-27 | 2003-02-04 | Oji Paper Co., Ltd. | Ink jet recording sheet and method |
US6773770B1 (en) | 1998-06-30 | 2004-08-10 | Oji Paper Co., Ltd. | Ink jet recording material and recording method |
JP2015073393A (en) * | 2013-10-03 | 2015-04-16 | 株式会社ダイヘン | Power supply device for alternating current welding and alternating current welder |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4829657A (en) * | 1971-08-21 | 1973-04-19 | ||
JPS5233853A (en) * | 1975-09-10 | 1977-03-15 | Osaka Transformer Co Ltd | Arc welding machine |
JPS5233854A (en) * | 1975-09-10 | 1977-03-15 | Osaka Transformer Co Ltd | Arc welding machine |
JPS5236538A (en) * | 1975-09-18 | 1977-03-19 | Osaka Transformer Co Ltd | Arc welding machine |
JPS5252014U (en) * | 1975-10-14 | 1977-04-14 |
-
1978
- 1978-06-29 JP JP7934978A patent/JPS555183A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4829657A (en) * | 1971-08-21 | 1973-04-19 | ||
JPS5233853A (en) * | 1975-09-10 | 1977-03-15 | Osaka Transformer Co Ltd | Arc welding machine |
JPS5233854A (en) * | 1975-09-10 | 1977-03-15 | Osaka Transformer Co Ltd | Arc welding machine |
JPS5236538A (en) * | 1975-09-18 | 1977-03-19 | Osaka Transformer Co Ltd | Arc welding machine |
JPS5252014U (en) * | 1975-10-14 | 1977-04-14 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0476802A (en) * | 1990-07-18 | 1992-03-11 | Hitachi Ltd | Video tape recorder |
US6773770B1 (en) | 1998-06-30 | 2004-08-10 | Oji Paper Co., Ltd. | Ink jet recording material and recording method |
US6514598B1 (en) | 1998-10-27 | 2003-02-04 | Oji Paper Co., Ltd. | Ink jet recording sheet and method |
JP2015073393A (en) * | 2013-10-03 | 2015-04-16 | 株式会社ダイヘン | Power supply device for alternating current welding and alternating current welder |
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