GB814971A - Improvements in or relating to casting - Google Patents
Improvements in or relating to castingInfo
- Publication number
- GB814971A GB814971A GB578456A GB578456A GB814971A GB 814971 A GB814971 A GB 814971A GB 578456 A GB578456 A GB 578456A GB 578456 A GB578456 A GB 578456A GB 814971 A GB814971 A GB 814971A
- Authority
- GB
- United Kingdom
- Prior art keywords
- crucible
- mould
- chamber
- casting
- whilst
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
814,971. Casting-machines. BRENNAN, J. B. Feb. 24, 1956, No. 5784/56. Addition to 732,115. Class 83 (1). A method of casting consists in passing the metal from a crucible 6 into a casting-chamber 40, via an intermediate crucible 41, whilst subject to a pressure different from atmospheric. The apparatus in Fig. 1 is similar to that in Fig. 1 of the parent Specification, except that the chamber 40 has a mould 19 supported on a floor 20 movable by hydraulic means 18. In operation, the crucible 6, say, is charged with material which is melted whilst the surrounding chamber 4 is evacuated through the connection 10. The mould is heated and a plug 14 is released to allow the material to flow into the crucible 41. During its passage it may pass along a spiral trough as a particulate stream to effect rapid de-gassing. A plug 43 is then operated to allow the metal to pass to the mould 19. Subsequently the floor is lowered and the mould removed whilst the crucible 7 is prepared. An inert gas may be admitted through the connection 10, and cooling and heating coils may be provided in the chamber 40.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB814971A true GB814971A (en) | 1959-06-17 |
Family
ID=1628418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB578456A Expired GB814971A (en) | 1956-02-24 | Improvements in or relating to casting |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB814971A (en) |
-
1956
- 1956-02-24 GB GB578456A patent/GB814971A/en not_active Expired
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