GB257021A - Improvements in or relating to electromagnetic induction heating - Google Patents
Improvements in or relating to electromagnetic induction heatingInfo
- Publication number
- GB257021A GB257021A GB1323625A GB1323625A GB257021A GB 257021 A GB257021 A GB 257021A GB 1323625 A GB1323625 A GB 1323625A GB 1323625 A GB1323625 A GB 1323625A GB 257021 A GB257021 A GB 257021A
- Authority
- GB
- United Kingdom
- Prior art keywords
- crucible
- resistivity
- enclosed
- frequency
- relating
- 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
- H05B6/22—Furnaces without an endless core
- H05B6/24—Crucible furnaces
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Crucibles And Fluidized-Bed Furnaces (AREA)
Abstract
257,021. Burch, C. R., Davis, N. R., and Metropolitan-Vickers Electrical Co., Ltd. May 20, 1925. Induction furnaces. -Materials of low electrical conductivity are heated in a crucible of f conducting material of a high order of resistivity, for example 0.1 ohm per cubic centimetre, by subjecting the crucible to any alternating field of such frequency that the expression 2f #D #is greater than 1, so that the r Î 10<9> induced eddy currents are substantially confined to the crucible. D is the external diameter of the crucible in centimetres, f is the frequency and r is the resistivity of the material of the crucible in ohms per centimetre cube. The crucible 1 is supported on a heat resisting and preferably electrically insulating block 2 and is surrounded by lagging 5 enclosed in a silica tube 3. The turns of the water-cooled inductance coil 6 are separated by ebonite washers 7. The whole furnace is enclosed in a box 8 mounted on trunnions. Dimensions are given in the Specification for various furnaces. Specification 217,869 is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1323625A GB257021A (en) | 1925-05-20 | 1925-05-20 | Improvements in or relating to electromagnetic induction heating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1323625A GB257021A (en) | 1925-05-20 | 1925-05-20 | Improvements in or relating to electromagnetic induction heating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB257021A true GB257021A (en) | 1926-08-20 |
Family
ID=10019305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1323625A Expired GB257021A (en) | 1925-05-20 | 1925-05-20 | Improvements in or relating to electromagnetic induction heating |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB257021A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104470012A (en) * | 2014-10-15 | 2015-03-25 | 贵州航锐航空精密零部件制造有限公司 | Induction heating positioning device |
| CN105764173A (en) * | 2016-03-18 | 2016-07-13 | 西安航天华阳机电装备有限公司 | Adjustable electromagnetic induction heating device |
-
1925
- 1925-05-20 GB GB1323625A patent/GB257021A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104470012A (en) * | 2014-10-15 | 2015-03-25 | 贵州航锐航空精密零部件制造有限公司 | Induction heating positioning device |
| CN105764173A (en) * | 2016-03-18 | 2016-07-13 | 西安航天华阳机电装备有限公司 | Adjustable electromagnetic induction heating device |
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