GB841909A - Improvements in or relating to electric flash-butt welding machines - Google Patents
Improvements in or relating to electric flash-butt welding machinesInfo
- Publication number
- GB841909A GB841909A GB3328057A GB3328057A GB841909A GB 841909 A GB841909 A GB 841909A GB 3328057 A GB3328057 A GB 3328057A GB 3328057 A GB3328057 A GB 3328057A GB 841909 A GB841909 A GB 841909A
- Authority
- GB
- United Kingdom
- Prior art keywords
- series
- welding machines
- reactive
- relating
- butt welding
- 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.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/04—Flash butt welding
- B23K11/043—Flash butt welding characterised by the electric circuits used therewith
Abstract
841,909. Protective systems for butt-welding machines. RESISTANCE WELDERS Ltd. Sept. 29, 1958 [Oct. 24, 1957], No. 33280/57. Class 38 (4). In a welding machine having a transformer whose primary winding 2 is connected in series with a power factor capacitor 6 across supply mains 5, a power absorbing device 7 is connected across a reactive member to draw appreciable current when the voltage increases due to transient surges. The device may be connected across either the transformer primary or secondary windings, a separate high voltage winding, or an autotransformer extension of the primary winding. Alternatively the device may be connected across the capacitor. The device preferably comprises a non-linear resistor, or a gas-discharge tube with a series impedance, or a linear or non-linear resistor in series with a magnetic amplifier which is controlled by the voltage across the reactive member. The power absorbing device should be preferably non-reactive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3328057A GB841909A (en) | 1957-10-24 | 1957-10-24 | Improvements in or relating to electric flash-butt welding machines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3328057A GB841909A (en) | 1957-10-24 | 1957-10-24 | Improvements in or relating to electric flash-butt welding machines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB841909A true GB841909A (en) | 1960-07-20 |
Family
ID=10350874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3328057A Expired GB841909A (en) | 1957-10-24 | 1957-10-24 | Improvements in or relating to electric flash-butt welding machines |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB841909A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105345284A (en) * | 2015-12-09 | 2016-02-24 | 重庆镭宝激光智能机器人制造有限公司 | Anti-collision patch for laser head of laser cutting robot |
-
1957
- 1957-10-24 GB GB3328057A patent/GB841909A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105345284A (en) * | 2015-12-09 | 2016-02-24 | 重庆镭宝激光智能机器人制造有限公司 | Anti-collision patch for laser head of laser cutting robot |
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