GB838917A - Improvements in or relating to heating conductors for resistance heated electric furnaces operating at temperatures above 1400 c - Google Patents
Improvements in or relating to heating conductors for resistance heated electric furnaces operating at temperatures above 1400 cInfo
- Publication number
- GB838917A GB838917A GB2508/58A GB250858A GB838917A GB 838917 A GB838917 A GB 838917A GB 2508/58 A GB2508/58 A GB 2508/58A GB 250858 A GB250858 A GB 250858A GB 838917 A GB838917 A GB 838917A
- Authority
- GB
- United Kingdom
- Prior art keywords
- loop
- conductor
- heating
- relating
- temperatures above
- 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
- 239000004020 conductor Substances 0.000 title abstract 6
- 238000010438 heat treatment Methods 0.000 title abstract 6
- 150000001875 compounds Chemical class 0.000 abstract 2
- 238000005485 electric heating Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 abstract 1
- 230000000737 periodic effect Effects 0.000 abstract 1
- 229910052710 silicon Inorganic materials 0.000 abstract 1
- 239000010703 silicon Substances 0.000 abstract 1
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
- H05B3/00—Ohmic-resistance heating
- H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
- H05B3/12—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
- H05B3/14—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic
- H05B3/148—Silicon, e.g. silicon carbide, magnesium silicide, heating transistors or diodes
Landscapes
- Resistance Heating (AREA)
Abstract
838,917. Electric heating resistors. SIEMENSPLANIAWERKE AKTIENGESELLSCHAFT FUR KOHLEFABRIKATE. Jan. 24,1958 [Jan. 25, 1957], No. 2508/53. Class 39(3) A heating conductor for use in an electric furnace comprises a heating portion formed as a loop which is incandescent when the conductor is in use, the ends of the conductor which serve for connection to a source of electric power being mechanically connected together by an electrically insulating member and the conductor being formed in one piece as a tube composed of a compound or compounds of silicon with an element or elements of the fourth to sixth group of the Periodic System. As shown, Figs. 1, 4 and 5 a tubular heating conductor has a heating loop 1 andi thickened contact portions 3 which are mechanically connected by an insulating member 2, 2<SP>1</SP> or 2<SP>11</SP>, and which are connected to supply cables. The loop 1 may be held by a support 7<SP>1</SP> or 7". In the embodiment shown in Fig. 3 the arms of the tubular heating loop 1 which lead to the contact portion are each supported by an insulated half-tube 12, a suporting member 14 being introduced into the loop to form a core and the loop being formed with a longitudinal slit 8 to allow the escape of gases generated in the loop.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE838917X | 1955-01-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB838917A true GB838917A (en) | 1960-06-22 |
Family
ID=6761787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2508/58A Expired GB838917A (en) | 1955-01-25 | 1958-01-24 | Improvements in or relating to heating conductors for resistance heated electric furnaces operating at temperatures above 1400 c |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB838917A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3181845A (en) * | 1961-04-21 | 1965-05-04 | Kanthal Ab | Crucible furnace |
| US3373239A (en) * | 1964-06-18 | 1968-03-12 | Siemens Planiawerke Ag | High-temperature electric furnace with molybdenum silicide heater elements |
| US3397375A (en) * | 1966-12-01 | 1968-08-13 | Carborundum Co | Heating element |
-
1958
- 1958-01-24 GB GB2508/58A patent/GB838917A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3181845A (en) * | 1961-04-21 | 1965-05-04 | Kanthal Ab | Crucible furnace |
| US3373239A (en) * | 1964-06-18 | 1968-03-12 | Siemens Planiawerke Ag | High-temperature electric furnace with molybdenum silicide heater elements |
| US3397375A (en) * | 1966-12-01 | 1968-08-13 | Carborundum Co | Heating element |
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