GB829777A - Improvements in or relating to processes for refining liquid melts by degasification, and to apparatus for carrying such processes into effect - Google Patents
Improvements in or relating to processes for refining liquid melts by degasification, and to apparatus for carrying such processes into effectInfo
- Publication number
- GB829777A GB829777A GB24454/56A GB2445456A GB829777A GB 829777 A GB829777 A GB 829777A GB 24454/56 A GB24454/56 A GB 24454/56A GB 2445456 A GB2445456 A GB 2445456A GB 829777 A GB829777 A GB 829777A
- Authority
- GB
- United Kingdom
- Prior art keywords
- melt
- chamber
- vacuum
- crucible
- maintained
- 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
- 239000000155 melt Substances 0.000 title abstract 8
- 239000007788 liquid Substances 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 3
- 238000007670 refining Methods 0.000 title abstract 3
- 238000007872 degassing Methods 0.000 title abstract 2
- 239000002184 metal Substances 0.000 abstract 3
- 229910052751 metal Inorganic materials 0.000 abstract 3
- 239000000463 material Substances 0.000 abstract 2
- 230000004048 modification Effects 0.000 abstract 2
- 238000012986 modification Methods 0.000 abstract 2
- 230000006698 induction Effects 0.000 abstract 1
- 150000002739 metals Chemical class 0.000 abstract 1
Classifications
-
- 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
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/10—Handling in a vacuum
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B5/00—Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated
- F27B5/04—Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated adapted for treating the charge in vacuum or special atmosphere
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
829,777. Degassing metals. FISCHER A. G., G. Aug. 9, 1956 [Aug. 9, 1955], No. 24454/56. Class 72 [Also in Group XI] A process of refining liquid melts comprises introducing the melt into a chamber which. is separated from a second chamber, in which is maintained a vacuum or a gas at reduced pressure, by a wall at least a part of which is permeable to the gas but not to the liquid. As shown, applied to the refining of a metal, the molten metal is placed in a crucible 1 the lower portion 2 of which is of gas permeable material. A vacuum is maintained in a chamber 4 surrounding the crucible and the temperature is maintained by a resistance heater 7. The crucible may be in the form of a tube of gas permeable material and may be arranged in a chamber divided into smaller chambers in each of which a different vacuum may prevail, Fig. 3 (not shown). In a modification, Fig. 5, the apparatus is similar to Fig. 1 but the melt is in the outer chamber and the vacuum in the inner and a high voltage electrode 45 may be inserted into the vacuum chamber. The electrode may be an incandescent cathode maintained at such a high potential relative to the melt or crucible that gas emission from the melt is promoted. In a further modification Fig. 4 (not shown) the melt may form a short circuited induction ring. The melt may also be heated by passage of a current therethrough.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH829777X | 1955-08-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB829777A true GB829777A (en) | 1960-03-09 |
Family
ID=4540219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB24454/56A Expired GB829777A (en) | 1955-08-09 | 1956-08-09 | Improvements in or relating to processes for refining liquid melts by degasification, and to apparatus for carrying such processes into effect |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB829777A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2134929A (en) * | 1982-12-22 | 1984-08-22 | Honsel Werke Ag | Degassing molten metal |
| EP0462537A1 (en) * | 1990-06-16 | 1991-12-27 | Masamichi Sano | Vacuum-suction degassing apparatus |
| EP0462536A1 (en) * | 1990-06-16 | 1991-12-27 | Masamichi Sano | Vacuum-suction degassing method and an apparatus therefor |
| US5324487A (en) * | 1990-06-16 | 1994-06-28 | Tokyo Yogyo Kabushiki Kaisha | Vacuum-suction degassing apparatus |
| US5346185A (en) * | 1990-06-16 | 1994-09-13 | Tokyo Yogyo Kabushiki Kaisha | Vacuum-suction degassing apparatus |
| US5415680A (en) * | 1992-11-09 | 1995-05-16 | Eckert; C. Edward | Molten metal vacuum treatment and apparatus |
| WO2009066058A1 (en) * | 2007-11-24 | 2009-05-28 | Capital Refractories Limited | Metallurgical treatment vessel etc |
-
1956
- 1956-08-09 GB GB24454/56A patent/GB829777A/en not_active Expired
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2134929A (en) * | 1982-12-22 | 1984-08-22 | Honsel Werke Ag | Degassing molten metal |
| EP0462537A1 (en) * | 1990-06-16 | 1991-12-27 | Masamichi Sano | Vacuum-suction degassing apparatus |
| EP0462536A1 (en) * | 1990-06-16 | 1991-12-27 | Masamichi Sano | Vacuum-suction degassing method and an apparatus therefor |
| US5306472A (en) * | 1990-06-16 | 1994-04-26 | Tokyo Yogyo Kabushiki Kaisha | Vacuum-suction degassing method and an apparatus therefor |
| US5324487A (en) * | 1990-06-16 | 1994-06-28 | Tokyo Yogyo Kabushiki Kaisha | Vacuum-suction degassing apparatus |
| US5346185A (en) * | 1990-06-16 | 1994-09-13 | Tokyo Yogyo Kabushiki Kaisha | Vacuum-suction degassing apparatus |
| US5415680A (en) * | 1992-11-09 | 1995-05-16 | Eckert; C. Edward | Molten metal vacuum treatment and apparatus |
| WO2009066058A1 (en) * | 2007-11-24 | 2009-05-28 | Capital Refractories Limited | Metallurgical treatment vessel etc |
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