GB338131A - Improvements in or relating to electric furnaces - Google Patents
Improvements in or relating to electric furnacesInfo
- Publication number
- GB338131A GB338131A GB21264/29A GB2126429A GB338131A GB 338131 A GB338131 A GB 338131A GB 21264/29 A GB21264/29 A GB 21264/29A GB 2126429 A GB2126429 A GB 2126429A GB 338131 A GB338131 A GB 338131A
- Authority
- GB
- United Kingdom
- Prior art keywords
- carbon
- resistances
- muffle
- resistance
- carbide
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D11/00—Arrangement of elements for electric heating in or on furnaces
- F27D11/02—Ohmic resistance heating
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/52—Manufacture of steel in electric furnaces
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ceramic Products (AREA)
Abstract
338,131. Carborundum Co., (Assignees of Benner, R. C., and Easter, G. J.), and Hawke, C. E. Dec. 7, 1928, [Convention date]. Resistance furnaces. - Ca.rbide resistances are protected by a non-oxidizing gas or a surrounding body of granular carbon. The resistance may be of silicon or boron carbide. The carbon may be in the form of crushed petroleum coke. In Fig. 1 the resistors 1 and the muffle 4 are embedded in carbon 2. The muffle is made of refractory material having a thermal conductivity in excess of .006 calories em.<3> sec. ‹C. Fused alumina, recrystallized silicon carbide as described in Specification 19493/02, [Class 1, Acids, alkalies, &c.], or bonded silicon carbide. as described in Specification 326,560, [Class 22, Cements &c.], are suitable refractories. The muffle walls are preferably protected with a glaze, made as described in Specification 319,647, [Class 37, Electricity, Measuring &c.]. The terminal members 7 are provided with chrome iron tips 6 welded thereto. Heat dissipating members 8 are threaded on the terminals and may be cooled by an air-blast. In a modification the resistance is formed of a number of plates held together by pressure between water cooled terminals. In Fig. 3 resistance 1 is embedded in carbon 2 in a silicon carbide shell 5a fitted with graphite or carbide end plugs 24 surrounded with insulation 25. One plug is adapted for free longitudinal movement. In Fig. 5 the resistances 1 a.re embedded in carbon 2 arranged in the space 12 between the side walls 11 and the outer walls. The walls 11 are of porous recrystallized silicon carbide. A slight gas pressure is maintained in the space 12 and the monoxide formed therein filters into the furnace chamber. The carbon may be replenished through doors 18. In a modification the resistances are arranged in the muffle itself. A further modification simply comprises an arrangement of carbide resistances in a furnace chamber to which producer gas is supplied directly. Specification 20810/04 also is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US338131XA | 1928-12-07 | 1928-12-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB338131A true GB338131A (en) | 1930-11-10 |
Family
ID=21872582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB21264/29A Expired GB338131A (en) | 1928-12-07 | 1929-07-10 | Improvements in or relating to electric furnaces |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB338131A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2377857A1 (en) * | 1977-01-21 | 1978-08-18 | Klein Tools Inc | ELECTRIC SLOT OVEN, ESPECIALLY FOR HEATING STEEL TO FORGING TEMPERATURES |
| FR2413011A1 (en) * | 1977-12-23 | 1979-07-20 | Alco Standard Corp | HEATING KIT FOR A HEAT TREATMENT OVEN |
-
1929
- 1929-07-10 GB GB21264/29A patent/GB338131A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2377857A1 (en) * | 1977-01-21 | 1978-08-18 | Klein Tools Inc | ELECTRIC SLOT OVEN, ESPECIALLY FOR HEATING STEEL TO FORGING TEMPERATURES |
| FR2413011A1 (en) * | 1977-12-23 | 1979-07-20 | Alco Standard Corp | HEATING KIT FOR A HEAT TREATMENT OVEN |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2106578A (en) | Sealing composition, method of using same, and articles made therewith | |
| GB338131A (en) | Improvements in or relating to electric furnaces | |
| US1837178A (en) | Electric furnace | |
| GB1483121A (en) | Electrical resistance furnaces | |
| GB550379A (en) | Improvements in or relating to the treatment of carbon bodies to improve the hardness, density and electrical conductivity thereof | |
| US2009732A (en) | Electric resistor | |
| CN209485059U (en) | A kind of insulating fire brick | |
| US1997622A (en) | Electric furnace and method of operating the same | |
| US1513890A (en) | Electric furnace of the resistor type | |
| JP2016180043A (en) | Vertical pyrolysis furnace for manufacturing ferrocoke | |
| Kroll et al. | A new carbon resistor furnace | |
| US1533269A (en) | Electric furnace | |
| US1572893A (en) | Electric furnace | |
| US1306251A (en) | colby | |
| US1306289A (en) | Vanxa | |
| US1517122A (en) | paolo ni | |
| US1515375A (en) | Furnace lining and method of making the same | |
| US1347896A (en) | Double-hot-chamber furnace | |
| CURTIS et al. | Investigation of Various Properties of Zircon and of Stabilized Zirconia at Elevated Temperatures, I–III | |
| Baumann Jr | AN ELECTRIC SPALLING FURNACE 1 | |
| USRE16159E (en) | Electbical insulatob | |
| GB163727A (en) | Improvements in electrical resistance elements | |
| Pendergast | AN ELECTRIC FURNACE FOR SOFTENING POINT DETERMINATIONS 1 | |
| US1810643A (en) | Dental furnace | |
| GB354172A (en) | Improvements in or relating to electric furnaces |