GB802377A - Method and apparatus for electric arc welding - Google Patents
Method and apparatus for electric arc weldingInfo
- Publication number
- GB802377A GB802377A GB6368/56A GB636856A GB802377A GB 802377 A GB802377 A GB 802377A GB 6368/56 A GB6368/56 A GB 6368/56A GB 636856 A GB636856 A GB 636856A GB 802377 A GB802377 A GB 802377A
- Authority
- GB
- United Kingdom
- Prior art keywords
- circuit
- main
- auxiliary
- phase
- output
- 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
- B23K9/00—Arc welding or cutting
- B23K9/10—Other electric circuits therefor; Protective circuits; Remote controls
- B23K9/1006—Power supply
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding Control (AREA)
Abstract
802,377. Supplying welding arcs. AIR REDUCTION CO., Inc. Feb. 29, 1956 [March 16, 1955], No. 6368/56. Class 38 (4). A main welding circuit comprises a full-wave rectifier 16 and has preferably a high current output and a low open-circuit voltage. An auxiliary keep-alive circuit comprises a fullwave rectifier 26 and has an output which is out-of-phase with the output of the main circuit and is connected in parallel with the main circuit across the welding arc. The keepalive circuit may have a relatively low current output and a relatively high open-circuit voltage. The main and auxiliary circuits are energized from the same single-phase source, and as shown, are connected to separate secondary windings of a common transformer. A variable inductance is provided for current control in the main circuit, whilst a phaseshifting capacitor 27 and current limiting resistor 28 are connected in the auxiliary circuit. In a modification, the main and auxiliary circuits are energized through different transformers connected to the same single-phase source, Fig. 4 (not shown). The phase-shifting component for the keep-alive circuit is then located in the primary circuit of the associated transformer.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US802377XA | 1955-03-16 | 1955-03-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB802377A true GB802377A (en) | 1958-10-01 |
Family
ID=22156097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB6368/56A Expired GB802377A (en) | 1955-03-16 | 1956-02-29 | Method and apparatus for electric arc welding |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR1147210A (en) |
| GB (1) | GB802377A (en) |
-
1956
- 1956-02-29 GB GB6368/56A patent/GB802377A/en not_active Expired
- 1956-03-15 FR FR1147210D patent/FR1147210A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1147210A (en) | 1957-11-20 |
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