SU513800A1 - AC arc welding device - Google Patents
AC arc welding deviceInfo
- Publication number
- SU513800A1 SU513800A1 SU2072269A SU2072269A SU513800A1 SU 513800 A1 SU513800 A1 SU 513800A1 SU 2072269 A SU2072269 A SU 2072269A SU 2072269 A SU2072269 A SU 2072269A SU 513800 A1 SU513800 A1 SU 513800A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- thyristors
- electrode
- transformer
- arc welding
- windings
- Prior art date
Links
Landscapes
- Arc Welding Control (AREA)
Description
33
Концы всех обмоток соединены вместе и поданы на свариваемое изделие 5. Начала вторичных обмоток 2 и 3 через две пары встречно-параллельно включенных тиристоров 6, 7 и 8, 9 соединены с электродом 10. Непрерывность тока дуги поддерживаетс слаботочной цепью, состо щей из дополнительной обмотки 4 питающего трансформатора 1 и дроссел И.The ends of all the windings are connected together and fed to the welded product 5. The beginning of the secondary windings 2 and 3 through two pairs of parallel-connected thyristors 6, 7 and 8, 9 are connected to the electrode 10. The continuity of the arc current is maintained by a low-current circuit consisting of an additional winding 4 power supply transformer 1 and Drossel I.
Устройство работает следующим образом.The device works as follows.
В положительный -полупериод питающей сети («плюс на началах обмоток) ток провод т тиристоры 6 и 8. Врем прохождени тока через тиристоры зависит от фазы управл ющих импульсов и может регулироватьс от О до . В отрицательный полупериод сетевого напр жени ток провод т тиристоры 7 и 9.In the positive-half-cycle of the mains ("plus at the beginning of the windings"), thyristors 6 and 8 conduct the current. The current passing time through the thyristors depends on the phase of the control pulses and can be adjusted from 0 to. In the negative half-period of the mains voltage, the thyristors 7 and 9 conduct.
Падение напр жени на открытых тиристорах несравнимо меньше э.д.с. обмоток 2 и 3, и поэтому разница в величинах падений напр жени на тиристорах не нарушает равенство токов в обмотках 2 и 3 и тиристорах 6, 8 и 7, 9.The voltage drop across open thyristors is incomparably less emf. windings 2 and 3, and therefore the difference in the magnitudes of the voltage drops across the thyristors does not violate the equality of the currents in the windings 2 and 3 and the thyristors 6, 8 and 7, 9.
Нри закрытых тиристорах ток дуги поддерживаетс за счет дополнительной цепи питани - от обмотки 4 через дроссель 11. Этот ток во много раз меньше основного тока вторичных обмоток и на установленную мощность устройства вли ет незначительно.When the thyristors are closed, the arc current is maintained due to the additional power supply circuit — from winding 4 through choke 11. This current is many times less than the main current of the secondary windings and the installed power of the device is insignificant.
Измен фазу включени тиристоров, мож4Change thyristor switching phase, 4
ло регулировать сварочный ток в требуемом диапазоне.To regulate the welding current in the required range.
Нредлагаемое устройство было опробовано в источнике питани дл сварки алюминие5 вых сплавов и при испытании показало хорошие результаты.The proposed device was tested in a power source for welding aluminum5 alloys and, when tested, showed good results.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU2072269A SU513800A1 (en) | 1974-11-04 | 1974-11-04 | AC arc welding device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU2072269A SU513800A1 (en) | 1974-11-04 | 1974-11-04 | AC arc welding device |
Publications (1)
Publication Number | Publication Date |
---|---|
SU513800A1 true SU513800A1 (en) | 1976-05-15 |
Family
ID=20599869
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU2072269A SU513800A1 (en) | 1974-11-04 | 1974-11-04 | AC arc welding device |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU513800A1 (en) |
-
1974
- 1974-11-04 SU SU2072269A patent/SU513800A1/en active
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