SU516485A1 - Crater welding method - Google Patents
Crater welding methodInfo
- Publication number
- SU516485A1 SU516485A1 SU2058400A SU2058400A SU516485A1 SU 516485 A1 SU516485 A1 SU 516485A1 SU 2058400 A SU2058400 A SU 2058400A SU 2058400 A SU2058400 A SU 2058400A SU 516485 A1 SU516485 A1 SU 516485A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- welding
- arc
- current
- welding method
- crater
- Prior art date
Links
Landscapes
- Arc Welding In General (AREA)
- Arc Welding Control (AREA)
Description
1one
Изобретение относитс к машиностроению.The invention relates to mechanical engineering.
Известен способ сварки, который основан на применении импульсного тока и по которому процесс сварки заканчивают при постепенном уменьшении длительности импульса при посто нной паузе.The known welding method, which is based on the application of a pulsed current and which terminates the welding process with a gradual decrease in the pulse duration with a constant pause.
По этому способу мен ют соотношение между длительностью импульса и паузы, что приводит к неблагопри тным услови м дл кристаллизации снарочной ванны и снижению герметичности шва в кратере.According to this method, the ratio between the duration of the pulse and the pause is changed, which leads to unfavorable conditions for the crystallization of the finishing bath and a decrease in the tightness of the seam in the crater.
Известен также способ сварки с плавным уменьшением амплитуды сварочного тока в конце шва.Also known welding method with a gradual decrease in the amplitude of the welding current at the end of the seam.
Недостатком этого способа вл етс то, что при применении его на переменном токе дуга самопроизвольно гаснет раньше, чем заканчиваетс цикл тока заварки кратера шва.The disadvantage of this method is that when it is applied to alternating current, the arc spontaneously goes out before the welding crater's current cycle ends.
Цель изобретени - повышение качества заварки кратера шва на переменном токе.The purpose of the invention is to improve the quality of welding seam crater on alternating current.
Это достигаетс тем, что по предлагаемому способу после снижени сварочного тока до обрьша дуги переменньш ток, питающий дугу, отключают и вместо переменного тока подключают к дуге посто нный ток и снижают его до нул .This is achieved by the fact that according to the proposed method, after reducing the welding current before the arc is broken, the alternating current feeding the arc is disconnected and, instead of the alternating current, the direct current is connected to the arc and reduce it to zero.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU2058400A SU516485A1 (en) | 1974-09-11 | 1974-09-11 | Crater welding method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU2058400A SU516485A1 (en) | 1974-09-11 | 1974-09-11 | Crater welding method |
Publications (1)
Publication Number | Publication Date |
---|---|
SU516485A1 true SU516485A1 (en) | 1976-06-05 |
Family
ID=20595513
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU2058400A SU516485A1 (en) | 1974-09-11 | 1974-09-11 | Crater welding method |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU516485A1 (en) |
-
1974
- 1974-09-11 SU SU2058400A patent/SU516485A1/en active
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