SU135986A1 - The method of automatic control of the gap in the arc vacuum electric furnaces - Google Patents
The method of automatic control of the gap in the arc vacuum electric furnacesInfo
- Publication number
- SU135986A1 SU135986A1 SU650932A SU650932A SU135986A1 SU 135986 A1 SU135986 A1 SU 135986A1 SU 650932 A SU650932 A SU 650932A SU 650932 A SU650932 A SU 650932A SU 135986 A1 SU135986 A1 SU 135986A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- gap
- arc
- voltage
- electric furnaces
- automatic control
- Prior art date
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- Discharge Heating (AREA)
- Furnace Details (AREA)
Description
Существующие способы регулировани дугового промел утка в дуговых вакуумных электропечах ле обеспечивают автоматического выбора наилучщего режима (оптимальной длины дуги) по технологическим признакам в течении плавки.The existing methods for regulating the arc run-through of a duck in arc vacuum electric furnaces provide automatic selection of the best mode (optimal arc length) according to technological features during smelting.
Предложенный ранее авторами способ (авт. св. Х 119631) также не обеспечивает достаточно точного и четкого изменени дугового промежутка и состо ни ванны металла в каждый момент времени.The method proposed earlier by the authors (ed. St. X 119631) also does not provide for a sufficiently accurate and precise change in the arc gap and the state of the metal bath at each moment in time.
Дл устранени указанного недостатка предлагаетс в качестве опорного напр жени использовать выходное напр жение реша}ощего устройства, на вход которого подают напр жение, вл ющеес функцией частоты импульсов напр жени дуги, превысивших заранее заданную амплитуду и длительность.To eliminate this drawback, it is proposed to use as a reference voltage the output voltage of a device, to the input of which a voltage is applied, which is a function of the frequency of arc voltage pulses exceeding a predetermined amplitude and duration.
Сущность предлагаемого способа заключаетс в следующем.The essence of the proposed method is as follows.
Напр жение дуги подают на вход устройства 1 (см. схему), отбирающего импульсы, амплитуда и длительность которых превосход т заранее заданную величину. Отобранные импульсы подают на вход устройства , на выходе которого получают напр жение, вл ющеес функцией частоты импульсов, прощедщих через устройство /.The arc voltage is fed to the input of the device 1 (see diagram), which selects pulses, the amplitude and duration of which exceed a predetermined value. Selected pulses are fed to the input of the device, at the output of which a voltage is obtained, which is a function of the frequency of the pulses that are passed through the device /.
Напр жение с выхода устройства 2 подают на вход рещающего устройства 5, напр жение на выходе которого вл етс опорным напр жением дл балансного усилител 4, на второй вход которого подают напр жение, вл ющеес функцией напр жени дуги.The voltage from the output of the device 2 is fed to the input of the resolver 5, the voltage at the output of which is the reference voltage for the balanced amplifier 4, to the second input of which voltage is applied, which is a function of the arc voltage.
Предмет изобретени Subject invention
Способ автоматического регулировани промежутка в дуговых вакуумных электропечах по авт. св. № 119631, отличающийс тем, что, с целью повыщени точности регулировани , на вход рещающего устройства подают напр жение, вл ющеес функцией частоты импульсов напр жени на дуге, амплитуда и длительность которых превышают заранее заданные значени .The method of automatic adjustment of the gap in the arc vacuum electric furnaces by author. St. No. 119631, characterized in that, in order to increase the control accuracy, a voltage is applied to the input of the resolver, which is a function of the frequency of the voltage pulses on the arc, the amplitude and duration of which exceed the predetermined values.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU650932A SU135986A1 (en) | 1960-01-16 | 1960-01-16 | The method of automatic control of the gap in the arc vacuum electric furnaces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU650932A SU135986A1 (en) | 1960-01-16 | 1960-01-16 | The method of automatic control of the gap in the arc vacuum electric furnaces |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU119631 Addition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU135986A1 true SU135986A1 (en) | 1960-11-30 |
Family
ID=48292278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU650932A SU135986A1 (en) | 1960-01-16 | 1960-01-16 | The method of automatic control of the gap in the arc vacuum electric furnaces |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU135986A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3660583A (en) * | 1969-03-17 | 1972-05-02 | Daido Steel Co Ltd | Automatic rapid melting system and its application for arc furnace |
-
1960
- 1960-01-16 SU SU650932A patent/SU135986A1/en active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3660583A (en) * | 1969-03-17 | 1972-05-02 | Daido Steel Co Ltd | Automatic rapid melting system and its application for arc furnace |
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