GB413698A - Improvements in and relating to vacuum furnaces - Google Patents
Improvements in and relating to vacuum furnacesInfo
- Publication number
- GB413698A GB413698A GB181433A GB181433A GB413698A GB 413698 A GB413698 A GB 413698A GB 181433 A GB181433 A GB 181433A GB 181433 A GB181433 A GB 181433A GB 413698 A GB413698 A GB 413698A
- Authority
- GB
- United Kingdom
- Prior art keywords
- crucible
- door
- chamber
- doors
- 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
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
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/22—Furnaces without an endless core
- H05B6/24—Crucible furnaces
- H05B6/26—Crucible furnaces using vacuum or particular gas atmosphere
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
413,698. Crucible furnaces. SMETHURST, H., 147, Victoria Road, Fallowfield, BANCROFT, F. E., 19, Delaine Road, Withington, both in Manchester, BURROWS, G., Lynton, Fownhope Avenue, Sale, Cheshire, and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Crown House, Aldwych, London. Jan. 19, 1933, No. 1814. [Class 51 (ii).] Casings.-A melting crucible 34 and an electric heater are arranged in a vacuum-tight chamber 1 provided with at least one door provided with a readily dismountable high vacuum seal and containing a fluid cooled crucible support 33. The chamber is connected at 3 to a diffusion pump constructed according to Specification 407,503, [Group XXVIII]. The pressure in the chamber 1 is 10-<3> or 10-<4> mm. and the chamber and all the internal members except the crucible are maintained by circulating liquid at a temperature below 100‹ C. The chamber is provided with doors 10, 23, 42, 47 and the door 23 is fitted with doors 45, 46. The doors are sealed as described in Specification 413,364, [Group XXVI]. The chamber is fitted with a sight tube 8 and with a water jacket 4 having a helical baffle 5. Doors 10, 23, 45 and the crucible support 33 are water jacketted also. The door 10 carries a relief valve 18 and a door 48 to which is welded a water-cooled sublimation collector 15 fitted with a vacuum sealed sighting window 120 as described in Specification 414,053, [Group XXII]. The door 48 is sealed by bitumen or wax 53a. The crucible 34 is arranged in an outer crucible 35 and is separated from it by zircon sand. The outlet 37 is controlled by a water cooled gate 40 as described in Specification 413,743. A support 25 for the ingot mould 26 is formed integrally with the door 45 and has a double helical rib 106 which forms with an external sleeve 107 a closed path for cooling water. A vacuum sealed plug 49 may be removed to enable a rod to be inserted to raise the plug 111 and the ingot. A gauze or corrugated copper liner 112 is inserted between the mould and the support 25 to allow for expansion. The connection 2 to the diffusion pump contains a removable baffle 135 and is provided with an opening 136 for a Pirani gauge 137 and an opening 138 for a vacuum gauge of the discharge tube type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB181433A GB413698A (en) | 1933-01-19 | 1933-01-19 | Improvements in and relating to vacuum furnaces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB181433A GB413698A (en) | 1933-01-19 | 1933-01-19 | Improvements in and relating to vacuum furnaces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB413698A true GB413698A (en) | 1934-07-19 |
Family
ID=9728485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB181433A Expired GB413698A (en) | 1933-01-19 | 1933-01-19 | Improvements in and relating to vacuum furnaces |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB413698A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2333147A (en) * | 1998-01-13 | 1999-07-14 | Ald Vacuum Techn Gmbh | Induction heated vacuum crucibles |
| CN117287966A (en) * | 2023-11-27 | 2023-12-26 | 四川威纳尔特种电子材料有限公司 | Smelting device and method for efficiently forming and producing blank pup joint for bonding wire |
-
1933
- 1933-01-19 GB GB181433A patent/GB413698A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2333147A (en) * | 1998-01-13 | 1999-07-14 | Ald Vacuum Techn Gmbh | Induction heated vacuum crucibles |
| GB2333147B (en) * | 1998-01-13 | 2002-04-24 | Ald Vacuum Techn Gmbh | Sealed evacuatable crucible for inductive melting or overheating of metals, alloys or other electrically conductive materials |
| CN117287966A (en) * | 2023-11-27 | 2023-12-26 | 四川威纳尔特种电子材料有限公司 | Smelting device and method for efficiently forming and producing blank pup joint for bonding wire |
| CN117287966B (en) * | 2023-11-27 | 2024-01-23 | 四川威纳尔特种电子材料有限公司 | Smelting device and method for efficiently forming and producing blank pup joint for bonding wire |
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