GB873787A - Improvements in or relating to electric vacuum furnaces - Google Patents
Improvements in or relating to electric vacuum furnacesInfo
- Publication number
- GB873787A GB873787A GB2679958A GB2679958A GB873787A GB 873787 A GB873787 A GB 873787A GB 2679958 A GB2679958 A GB 2679958A GB 2679958 A GB2679958 A GB 2679958A GB 873787 A GB873787 A GB 873787A
- Authority
- GB
- United Kingdom
- Prior art keywords
- charge
- aug
- electric
- elements
- electric vacuum
- 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
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 2
- 229910052799 carbon Inorganic materials 0.000 abstract 2
- 238000010438 heat treatment Methods 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/30—Electron-beam or ion-beam tubes for localised treatment of objects
- H01J37/305—Electron-beam or ion-beam tubes for localised treatment of objects for casting, melting, evaporating, or etching
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Resistance Heating (AREA)
Abstract
873,787. Electrically heated vacuum furnaces. GENERAL ELECTRIC CO. Ltd. Aug. 18, 1959 [Aug. 20, 1958], No. 26799/58. Drawings to Specification. Class 39(3). [Also in -Group XL(a)] In an electric vacuum furnace in which a charge is arranged to be simultaneously heated by radiant heat and electron bombardment, comprising a casing containing one or more electric resistance heating elements of electron emitting material, means are provided for supporting the charge and for connecting the charge, or electrically conducting means associated therewith, and the element or elements to the positive and negative terminals respectively of a direct current supply, preferably of 10 kv. The heating element is preferably of carbon and is disposed coaxially around the charge or the electrically conducting means (which may comprise a metal shield). There may be three carbon resistance elements connected to a three-phase alternating supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2679958A GB873787A (en) | 1958-08-20 | 1958-08-20 | Improvements in or relating to electric vacuum furnaces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2679958A GB873787A (en) | 1958-08-20 | 1958-08-20 | Improvements in or relating to electric vacuum furnaces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB873787A true GB873787A (en) | 1961-07-26 |
Family
ID=10249409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2679958A Expired GB873787A (en) | 1958-08-20 | 1958-08-20 | Improvements in or relating to electric vacuum furnaces |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB873787A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1195000B (en) * | 1962-04-06 | 1965-06-16 | Stauffer Chemical Co | Electron beam furnace for material investigations |
-
1958
- 1958-08-20 GB GB2679958A patent/GB873787A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1195000B (en) * | 1962-04-06 | 1965-06-16 | Stauffer Chemical Co | Electron beam furnace for material investigations |
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