GB809759A - Improvements in cross field furnaces for the induction heating of work pieces - Google Patents
Improvements in cross field furnaces for the induction heating of work piecesInfo
- Publication number
- GB809759A GB809759A GB7373/57A GB737357A GB809759A GB 809759 A GB809759 A GB 809759A GB 7373/57 A GB7373/57 A GB 7373/57A GB 737357 A GB737357 A GB 737357A GB 809759 A GB809759 A GB 809759A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tubes
- furnaces
- march
- cross field
- legs
- 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
- H05B6/362—Coil arrangements with flat coil conductors
Abstract
809,759. Induction furnaces. ALLMANNA SVENSKA ELEKTRISKA, A. B. March 6, 1957 [March 15, 1956], No. 7373/57. Class 39(3) . Substantially uniform heating of workpieces, particularly thin-walled tubular members, is produced in a single phase cross field induction furnace in which the plane containing the legs of a coil section 1 is at 90‹ to the plane in which the legs of a coil section 2 are disposed. The resulting fields represented by H 1 , H 2 are thus at right angles to each other. A laminated iron shell member 3 may be provided and the coil may be two separate parts, Figs. 4-6 (not shown). Preferably, in heating thin-walled tubes the following equation is at least approximately satisfied:- in which (where R, r,=the external and internal radii respectively, of the tube) v (cm)/(sec) = the speed of advance of the tubes through the furnace, c (Watt sec/cm<SP>3</SP> ‹C)=the specific heat of the tubes, #(Watt/cm ‹C) = the coefficient of thermal conductivity of the tubes.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE809759X | 1956-03-15 | ||
| SE1169314X | 1956-03-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB809759A true GB809759A (en) | 1959-03-04 |
Family
ID=26657786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7373/57A Expired GB809759A (en) | 1956-03-15 | 1957-03-06 | Improvements in cross field furnaces for the induction heating of work pieces |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB809759A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2995642A (en) * | 1959-06-04 | 1961-08-08 | Stoner Invest Inc | Induction heating apparatus |
| US3301991A (en) * | 1963-06-07 | 1967-01-31 | Deutsche Edelstahlwerke Ag | Inductor for heating the ends of elongated stock |
| US3437778A (en) * | 1965-12-01 | 1969-04-08 | Aeg Elotherm Gmbh | Apparatus for inductively heating electrically conducting workpieces |
-
1957
- 1957-03-06 GB GB7373/57A patent/GB809759A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2995642A (en) * | 1959-06-04 | 1961-08-08 | Stoner Invest Inc | Induction heating apparatus |
| US3301991A (en) * | 1963-06-07 | 1967-01-31 | Deutsche Edelstahlwerke Ag | Inductor for heating the ends of elongated stock |
| US3437778A (en) * | 1965-12-01 | 1969-04-08 | Aeg Elotherm Gmbh | Apparatus for inductively heating electrically conducting workpieces |
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