GB726354A - Improvements in a casting method and apparatus - Google Patents
Improvements in a casting method and apparatusInfo
- Publication number
- GB726354A GB726354A GB1094553A GB1094553A GB726354A GB 726354 A GB726354 A GB 726354A GB 1094553 A GB1094553 A GB 1094553A GB 1094553 A GB1094553 A GB 1094553A GB 726354 A GB726354 A GB 726354A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mould
- tube
- metal
- chamber
- gate
- 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
- B22D18/04—Low pressure casting, i.e. making use of pressures up to a few bars to fill the mould
Abstract
726,354. Casting-machines. GRIFFIN WHEEL CO. April 21, 1953, No. 10945/53. Addition to 718,744. Class 83 (1). In a method of casting comprising the steps of positioning a tube 18 with its lower end immersed in a bath of molten metal 26 within a sealed chamber 35 and positioning a mould 2 with its gate 14 communicating with the tube, sub-stmospheric pressure is developed in the chamber to lower the metal in the tube to approximately the bottom thereof, and then super-atomospheric pressure is developed in the chamber to urge the metal through the tube into the mould, the flow of metal to the mould being terminated when the mould is filled by moving a plunger valve 42 against the gate to close same. The tube is inclined to the vertical and its lower end may be closed by a fusible cap to prevent the entry of slag when entering the molten metal reservoir. A riser 12 is positioned at the highest point of the mould cavity, and the distance between the plungerseat 44 and the gate-seat 46 is substantially less than the distance between the plunger-seat and the upper surface 48 of the hub section of the mould cavity, to reduce pumping action of the plunger on the metal in the mould. In other respects the mould and chamber are substantially as described in the parent Specification.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1094553A GB726354A (en) | 1953-04-21 | 1953-04-21 | Improvements in a casting method and apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1094553A GB726354A (en) | 1953-04-21 | 1953-04-21 | Improvements in a casting method and apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB726354A true GB726354A (en) | 1955-03-16 |
Family
ID=9977185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1094553A Expired GB726354A (en) | 1953-04-21 | 1953-04-21 | Improvements in a casting method and apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB726354A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2852822A (en) * | 1955-08-12 | 1958-09-23 | Griffin Wheel Co | Vacuum seal for pressure pouring apparatus |
| US3057782A (en) * | 1958-01-22 | 1962-10-09 | Hoechst Ag | Cross-linked gelatin plasma substitute and production thereof |
| US3163897A (en) * | 1962-05-21 | 1965-01-05 | Amsted Ind Inc | Method and apparatus for casting metal articles |
-
1953
- 1953-04-21 GB GB1094553A patent/GB726354A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2852822A (en) * | 1955-08-12 | 1958-09-23 | Griffin Wheel Co | Vacuum seal for pressure pouring apparatus |
| US3057782A (en) * | 1958-01-22 | 1962-10-09 | Hoechst Ag | Cross-linked gelatin plasma substitute and production thereof |
| US3163897A (en) * | 1962-05-21 | 1965-01-05 | Amsted Ind Inc | Method and apparatus for casting metal articles |
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