JPS56102383A - Power supply device for flash butt welding device - Google Patents
Power supply device for flash butt welding deviceInfo
- Publication number
- JPS56102383A JPS56102383A JP656380A JP656380A JPS56102383A JP S56102383 A JPS56102383 A JP S56102383A JP 656380 A JP656380 A JP 656380A JP 656380 A JP656380 A JP 656380A JP S56102383 A JPS56102383 A JP S56102383A
- Authority
- JP
- Japan
- Prior art keywords
- power
- current
- period
- butt welding
- during
- 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.)
- Granted
Links
Landscapes
- Inverter Devices (AREA)
- Arc Welding Control (AREA)
Abstract
PURPOSE: To make it possible to perfrom efficient welding without lowering commutating current, by using a square wave power source and by controllig the output through the DC voltage of power rectifying part during flash period, and through the pulse width of power inverting part during upset period.
CONSTITUTION: In the flash butt welding, a square wave power source composed of power rectifying part 1, DC filter 2 and power inverting part 3 is used. During the flash period, the DC current of power rectifying part 1 is controlled, and operation is made with an output of relatively high voltage and low current. During the upset period, the pulse width of power inverting part 3 is controlled. For instance, when change-over time of main thyristors 301 and 302 and that of main thyristors 303 and 304 are staggered, an output waveform of intermittent square wave is obtained. By this the effective value is lowered, and load current is reduced by the amount and, at the same time, the upset current is controlled within the limit of fixed value and thus efficient flash butt welding can be performed.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP656380A JPS606754B2 (en) | 1980-01-21 | 1980-01-21 | Power supply for flash butt welding equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP656380A JPS606754B2 (en) | 1980-01-21 | 1980-01-21 | Power supply for flash butt welding equipment |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56102383A true JPS56102383A (en) | 1981-08-15 |
JPS606754B2 JPS606754B2 (en) | 1985-02-20 |
Family
ID=11641792
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP656380A Expired JPS606754B2 (en) | 1980-01-21 | 1980-01-21 | Power supply for flash butt welding equipment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS606754B2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6290336A (en) * | 1985-10-16 | 1987-04-24 | Murao Boki Kk | Method for removing residual roving from roving bobbin |
-
1980
- 1980-01-21 JP JP656380A patent/JPS606754B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS606754B2 (en) | 1985-02-20 |
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