GB455089A - Improvements in, or relating to, furnaces or apparatus for use in the heat-treatment of metals - Google Patents
Improvements in, or relating to, furnaces or apparatus for use in the heat-treatment of metalsInfo
- Publication number
- GB455089A GB455089A GB1090935A GB1090935A GB455089A GB 455089 A GB455089 A GB 455089A GB 1090935 A GB1090935 A GB 1090935A GB 1090935 A GB1090935 A GB 1090935A GB 455089 A GB455089 A GB 455089A
- Authority
- GB
- United Kingdom
- Prior art keywords
- heating
- bell
- fan
- cooling
- furnaces
- 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
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
- C21D1/767—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material with forced gas circulation; Reheating thereof
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/54—Furnaces for treating strips or wire
- C21D9/663—Bell-type furnaces
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Furnace Details (AREA)
Abstract
455,089. Metal - heating furnaces. BIRMINGHAM ELECTRIC FURNACES, Ltd., LOBLEY, A. G., and ROBIETTE, A. G. E., Tyburn Road, Erdington, Birmingham. April 9, 1935, No. 10909. [Class 51 (ii)] In a furnace for annealing metals in a protective atmosphere provided with a fan for circulating the atmosphere, during the heating and cooling periods, through the charge and over heating and cooling elements respectively, the charge container c, on which are mounted electric heating elements e, the fan d and water or like cooling tubes m are all enclosed in a lift-up bell b which is formed with an internal flange b2 adapted to engage with a compressible ring g so as to isolate, during the heating period, the fan d and gas-circulating space f from the cooling chamber i. The ring g is carried on a partition h which is formed with apertures h<1> adapted to be opened and closed by externally-operated dampers h<2>, h<3>, and is of such dimensions as to provide an annular space through which the atmosphere gas may pass when the seal b<2>, g is broken by raising the bell b. In the form shown, the latter has an inclined lower edge resting on an inclined roller track o ; by turning the bell about its vertical axis it is raised a distance sufficient to break the internal seal. b<2>, g but not the external one n.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1090935A GB455089A (en) | 1935-04-09 | 1935-04-09 | Improvements in, or relating to, furnaces or apparatus for use in the heat-treatment of metals |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1090935A GB455089A (en) | 1935-04-09 | 1935-04-09 | Improvements in, or relating to, furnaces or apparatus for use in the heat-treatment of metals |
Publications (1)
Publication Number | Publication Date |
---|---|
GB455089A true GB455089A (en) | 1936-10-09 |
Family
ID=9976516
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1090935A Expired GB455089A (en) | 1935-04-09 | 1935-04-09 | Improvements in, or relating to, furnaces or apparatus for use in the heat-treatment of metals |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB455089A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3140743A (en) * | 1963-02-01 | 1964-07-14 | Midland Ross Corp | Heat treating apparatus |
US3361420A (en) * | 1964-05-23 | 1968-01-02 | Wellman Incandescent Furn Co | Heat treatment apparatus |
US3850417A (en) * | 1972-12-20 | 1974-11-26 | Guinea Hermanos Ingenieros Sa | System for accelerated cooling of loads in controlled atmosphere forced circulation type furnaces |
EP1462529A1 (en) * | 2003-03-24 | 2004-09-29 | Ebner Industrieofenbau Gesellschaft m.b.H. | Bell type furnace, especially for strip or coiled wire |
-
1935
- 1935-04-09 GB GB1090935A patent/GB455089A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3140743A (en) * | 1963-02-01 | 1964-07-14 | Midland Ross Corp | Heat treating apparatus |
US3361420A (en) * | 1964-05-23 | 1968-01-02 | Wellman Incandescent Furn Co | Heat treatment apparatus |
US3850417A (en) * | 1972-12-20 | 1974-11-26 | Guinea Hermanos Ingenieros Sa | System for accelerated cooling of loads in controlled atmosphere forced circulation type furnaces |
EP1462529A1 (en) * | 2003-03-24 | 2004-09-29 | Ebner Industrieofenbau Gesellschaft m.b.H. | Bell type furnace, especially for strip or coiled wire |
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