GB843975A - Improvements in and relating to casting in vacuum and inert gas - Google Patents
Improvements in and relating to casting in vacuum and inert gasInfo
- Publication number
- GB843975A GB843975A GB63258A GB63258A GB843975A GB 843975 A GB843975 A GB 843975A GB 63258 A GB63258 A GB 63258A GB 63258 A GB63258 A GB 63258A GB 843975 A GB843975 A GB 843975A
- Authority
- GB
- United Kingdom
- Prior art keywords
- chamber
- enclosure
- vacuum
- furnace
- mould
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D18/00—Pressure casting; Vacuum casting
- B22D18/06—Vacuum casting, i.e. making use of vacuum to fill the mould
-
- 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)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Furnace Details (AREA)
Abstract
843,975. Casting-machines. METROPOLITAN-VICKERS ELECTRICAL CO. Ltd. April 7, 1959 [Jan. 7, 1958], No. 632/58. Class 83 (1). [Also in Group XII] A casting-apparatus comprises a movable structure containing a vacuum or inert gas chamber enclosing a furnace, a mould enclosure in connection with said chamber through a valve, means for raising and lowering said enclosure and for discharging the furnace, and casting molten metal therefrom through said valve into a mould in said enclosure. The vacuum-chamber assembly 20, vacuum pumps 79, 80, 90 and ancillary equipment, are mounted on a turntable 6 rotatable about a vertical shaft 2 by a motor 10, and vertically movable by a pair of lead-screws driven by a motor 18, so that the mould-enclosure 33, forming an integral part of the chamber 20, may be moved to surround in turn each of a number of moulds 40 on stands 39 placed equidistantly about the rotational axis of the turntable. The supports 39 may comprise a turntable 41, rotated for centrifugal casting, or a vibratable plate. The vacuum chamber encloses an induction furnace 24, tiltable in two stages 241, 24<SP>11</SP> about trunnions 25, 26 respectively, by a motor-driven winch 31. The cast is directed through the valved outlet 43 to the mould 40 by a tundish 42, which is tiltable and movable axially by an external handle 52. The furnace may be charged through a chamber 56 with bar-stock supported on a hook 62 operated by a hand winch 60. The chamber cover 58 containing the feed means may be replaced by other covers containing a pyrometer or a rod for breaking up slag &c. on the melt-surface in the furnace. A second charging-chamber supports a pivotallymounted elongated bucket 67 operable by a hand wheel 71 through a universally-jointed shaft 70, to tip small pieces of metal, fed to the bucket through a shoot 67a, into the furnace. The charging chambers, chamber 46, and mouldenclosure 33 are all capable of being sealed-off from the vacuum chamber, and individually evacuated. An inspection window chamber 53 may also be sealed-off from the chamber 20, so that the window may be removed for cleaning. The mould enclosure supports, at its lower end, a sealing arrangement comprising sealing-rings 36, 36a, and rings 35, 35a slidable on the enclosure wall 33 and having between them alternately, springs 37 and locating-pins. The ring 35a is linked to an air-cylinder 38d so that operation of said cylinder compresses, through the springs 37, the sealing-rings 36, 37a to form an initial seal, final loading being applied when the enclosure is evacuated. Instead of being mounted on a turntable, the vacuum-chamber &c. may be mounted on rails or on a gantry so that it may serve a line of moulds, or the platform may be arranged as a truck.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB63258A GB843975A (en) | 1958-01-07 | 1958-01-07 | Improvements in and relating to casting in vacuum and inert gas |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB63258A GB843975A (en) | 1958-01-07 | 1958-01-07 | Improvements in and relating to casting in vacuum and inert gas |
Publications (1)
Publication Number | Publication Date |
---|---|
GB843975A true GB843975A (en) | 1960-08-10 |
Family
ID=9707759
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB63258A Expired GB843975A (en) | 1958-01-07 | 1958-01-07 | Improvements in and relating to casting in vacuum and inert gas |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB843975A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2226628A (en) * | 1988-12-29 | 1990-07-04 | Sumitomo Electric Industries | Glass heating furnace |
GB2270371A (en) * | 1992-09-05 | 1994-03-09 | Leybold Durferrit Gmbh | Discharging induction furnace |
WO2000051766A1 (en) * | 1999-02-23 | 2000-09-08 | Ati Properties Inc. | Vacuum induction melting system |
WO2004078385A1 (en) * | 2003-03-07 | 2004-09-16 | Alcan International Limited | Apparatus for treating molten metal having a sealed treatment zone |
WO2018018119A1 (en) * | 2016-07-25 | 2018-02-01 | Torres Antônio Carlos | Integrated production platform for rotational moulding equipment |
-
1958
- 1958-01-07 GB GB63258A patent/GB843975A/en not_active Expired
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2226628A (en) * | 1988-12-29 | 1990-07-04 | Sumitomo Electric Industries | Glass heating furnace |
US5032079A (en) * | 1988-12-29 | 1991-07-16 | Sumitomo Electric Industries, Ltd. | Furnace for producing high purity quartz glass preform |
EP0450124A1 (en) * | 1988-12-29 | 1991-10-09 | Sumitomo Electric Industries, Ltd. | Furnace for producing high purity quartz glass preform |
GB2226628B (en) * | 1988-12-29 | 1993-05-26 | Sumitomo Electric Industries | Furnace |
GB2270371B (en) * | 1992-09-05 | 1996-06-19 | Leybold Durferrit Gmbh | Sealed induction furnace for melting and casting materials |
US5343492A (en) * | 1992-09-05 | 1994-08-30 | Leybold Durferrit Gmbh | Closed induction furnace for the melting and casting of substances |
GB2270371A (en) * | 1992-09-05 | 1994-03-09 | Leybold Durferrit Gmbh | Discharging induction furnace |
WO2000051766A1 (en) * | 1999-02-23 | 2000-09-08 | Ati Properties Inc. | Vacuum induction melting system |
US6360810B1 (en) * | 1999-02-23 | 2002-03-26 | Ati Properties, Inc. | Vacuum induction melting system |
US6523598B2 (en) * | 1999-02-23 | 2003-02-25 | Ati Properties, Inc. | Vacuum induction melting system |
US6830723B2 (en) | 2001-10-01 | 2004-12-14 | Alcan International Limited | Apparatus for treating molten metal having a sealed treatment zone |
WO2004078385A1 (en) * | 2003-03-07 | 2004-09-16 | Alcan International Limited | Apparatus for treating molten metal having a sealed treatment zone |
WO2018018119A1 (en) * | 2016-07-25 | 2018-02-01 | Torres Antônio Carlos | Integrated production platform for rotational moulding equipment |
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