GB801177A - Method and apparatus for induction heating - Google Patents
Method and apparatus for induction heatingInfo
- Publication number
- GB801177A GB801177A GB11257/55A GB1125755A GB801177A GB 801177 A GB801177 A GB 801177A GB 11257/55 A GB11257/55 A GB 11257/55A GB 1125755 A GB1125755 A GB 1125755A GB 801177 A GB801177 A GB 801177A
- Authority
- GB
- United Kingdom
- Prior art keywords
- transformer
- oscillator
- primary
- tuned circuit
- april
- 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
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/36—Coil arrangements
-
- 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
- B23K13/00—Welding by high-frequency current heating
- B23K13/01—Welding by high-frequency current heating by induction heating
- B23K13/02—Seam welding
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
801,177. Radio-frequency couplings. CRAWFORD, T. J. April 19, 1955 [April 20, 1954], No. 11257/55. Class 40 (7). In an induction heating apparatus the work inductor 3 is fed with high-frequency energy by means of a transformer 12 the primary of which forms part of the oscillator tuned circuit and may be fed from the oscillator across only a portion of whole inductance bridged by the tuned circuit capacitance. The primary of the transformer may thus act as an auto-transformer in order to match the oscillator to the tuned circuit and load. The oscillator valve 5, in one embodiment, is coupled over D.C. blocking capacitor 16 to the upper end of the primary winding of the transformer or to tappings 17 or 18 thereon. A bank of capacitors 13 forming the other part of the tank circuit are coupled across the whole winding. Feedback to the grid of the oscillator valve is provided by small transformer 14. The oscillator and coupling arrangement is described in connection with apparatus for producing welded tubing of the kind described in Specification 732,780, [Group XXII]. An air-cored watercooled transformer of suitable type is described with reference to Figs. 3 and 4 (not shown).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US801177XA | 1954-04-20 | 1954-04-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB801177A true GB801177A (en) | 1958-09-10 |
Family
ID=22155367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB11257/55A Expired GB801177A (en) | 1954-04-20 | 1955-04-19 | Method and apparatus for induction heating |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB801177A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0251333A2 (en) * | 1986-07-04 | 1988-01-07 | Kabushiki Kaisha Meidensha | Heating power measuring method |
-
1955
- 1955-04-19 GB GB11257/55A patent/GB801177A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0251333A2 (en) * | 1986-07-04 | 1988-01-07 | Kabushiki Kaisha Meidensha | Heating power measuring method |
| EP0251333A3 (en) * | 1986-07-04 | 1989-07-19 | Kabushiki Kaisha Meidensha | Heating power measuring method |
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