GB411041A - Improvements in and relating to electrically heated annealing furnaces - Google Patents
Improvements in and relating to electrically heated annealing furnacesInfo
- Publication number
- GB411041A GB411041A GB34429/33A GB3442933A GB411041A GB 411041 A GB411041 A GB 411041A GB 34429/33 A GB34429/33 A GB 34429/33A GB 3442933 A GB3442933 A GB 3442933A GB 411041 A GB411041 A GB 411041A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cover
- walls
- annealing
- dec
- class
- 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
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)
- Tunnel Furnaces (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Furnace Details (AREA)
Abstract
411,041. Annealing - furnaces. AKT.- GES. BROWN, BOVERI, ET CIE, Baden, Switzerland. Dec. 7, 1933, No. 34429. Convention date, Dec. 7, 1932. [Class 51 (ii).] The annealing-furnace according to Specification 277,379, [Class 51 (ii)], is modified so that, during the cooling period, the cover extension 3 may be located at the same level as the charge 11 with an unobstructed space therebetween. In the construction shown in Figs. 1, 2, the furnace walls 9, carrying the heating-elements 8, are movable vertically by screws 10 so that they can be lowered from the heating position, Fig. 1, to the cooling position, Fig. 2. A modification is described in which the cover 1 and the walls 9, both counterbalanced by weights 2, are coupled together by right and left hand screw spindles so that, on the change - over, they are respectively raised and lowered simultaneously. In this arrangement, the extension 3 projects downwardly into a deep sealing-trough 5 mounted on the outside of the walls 9. In a further construction, Fig. 6, the charge 11 is supported in a carrier 17 detachably secured at 18 to the cover 1, the change-over to cooling position being effected by raising the cover to the position shown.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE411041X | 1932-12-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB411041A true GB411041A (en) | 1934-05-31 |
Family
ID=6428516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB34429/33A Expired GB411041A (en) | 1932-12-07 | 1933-12-07 | Improvements in and relating to electrically heated annealing furnaces |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB411041A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4695706A (en) * | 1983-12-28 | 1987-09-22 | Denkoh Co. Ltd. | Vertical furnace for heat-treating semiconductor |
-
1933
- 1933-12-07 GB GB34429/33A patent/GB411041A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4695706A (en) * | 1983-12-28 | 1987-09-22 | Denkoh Co. Ltd. | Vertical furnace for heat-treating semiconductor |
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