GB726355A - Improvements in a method of making castings - Google Patents
Improvements in a method of making castingsInfo
- Publication number
- GB726355A GB726355A GB1094653A GB1094653A GB726355A GB 726355 A GB726355 A GB 726355A GB 1094653 A GB1094653 A GB 1094653A GB 1094653 A GB1094653 A GB 1094653A GB 726355 A GB726355 A GB 726355A
- Authority
- GB
- United Kingdom
- Prior art keywords
- casting
- cope
- tube
- mould
- lifted
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
726,355. Casting-machines. GRIFFIN WHEEL CO. April 21, 1953, No. 10946/53. Addition to 718,744. Classes 83 (1) and 83 (4). In casting, particularly wheels, molten metal from a reservoir is forced through a tube and into a gate in the bottom of a mould having separable top and bottom sections, the gate is closed by a plunger valve after the mould cavity is filled, and after solidification of the metal the casting is lifted from the mould by exerting a lifting force on the plunger valve. The apparatus is substantially the same as that described in the parent Specification which is referred to. The plunger valve 122 comprises a tube 130 and a plug 134 of, e.g., iron or ceramic, and a seat portion 126 of, e.g., ceramic. The tube is preferably filled with sand. After removal of the poured mould from the pouring tube 22 by the crane 90, and after the metal has solidified, a pin is inserted in one of the holes 128 in the stopper above the upper surface of the cope 64, and the cope is elevated, as by jacks, until it is lifted from the casting, and the casting is lifted from the drag by the plunger 122 when the cope abuts the pin. The casting is thereby suspended between the cope and the drag so that as it cools it may contract radially. Thereafter the upper end of the stopper is cut off, the plug 134 knocked out and the sand allowed to drain out, and the seat portion 132 knocked off. Dividing by fusion.-The central portion of the casting with the stopper is finally cut out by a torch 140 to form an axle hole, the casting 138 being mounted on a rotatable table 139.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1094653A GB726355A (en) | 1953-04-21 | 1953-04-21 | Improvements in a method of making castings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1094653A GB726355A (en) | 1953-04-21 | 1953-04-21 | Improvements in a method of making castings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB726355A true GB726355A (en) | 1955-03-16 |
Family
ID=9977199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1094653A Expired GB726355A (en) | 1953-04-21 | 1953-04-21 | Improvements in a method of making castings |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB726355A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2666037A1 (en) * | 1990-08-27 | 1992-02-28 | Pont A Mousson | FOUNDRY MOLD POSITIONING AND TIGHTENING INSTALLATION. |
| US5636680A (en) * | 1994-06-29 | 1997-06-10 | Dansk Industri Syndikat A/S | Method and device for terminating the casting process after non-gravity casting of moulds, especially green-sand moulds, particularly with easily oxidable metals or metal alloys |
| CN107321959A (en) * | 2017-09-05 | 2017-11-07 | 哈尔滨工业大学 | Large ship rises liquid disabling mechanism with copper alloy propeller counter-pressure casting |
| CN107498027A (en) * | 2017-09-05 | 2017-12-22 | 哈尔滨工业大学 | Large ship rises liquid method with the automatic cut-off of copper alloy propeller antigravity casting |
| CN110756787A (en) * | 2019-10-22 | 2020-02-07 | 广西科创机械股份有限公司 | Casting equipment and casting method thereof |
-
1953
- 1953-04-21 GB GB1094653A patent/GB726355A/en not_active Expired
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2666037A1 (en) * | 1990-08-27 | 1992-02-28 | Pont A Mousson | FOUNDRY MOLD POSITIONING AND TIGHTENING INSTALLATION. |
| EP0477118A1 (en) * | 1990-08-27 | 1992-03-25 | Pont-A-Mousson S.A. | Device for positioning and clamping foundry moulds |
| US5183097A (en) * | 1990-08-27 | 1993-02-02 | Pont-A-Mousson S.A. | Equipment installation for positioning and clamping foundry molds |
| US5636680A (en) * | 1994-06-29 | 1997-06-10 | Dansk Industri Syndikat A/S | Method and device for terminating the casting process after non-gravity casting of moulds, especially green-sand moulds, particularly with easily oxidable metals or metal alloys |
| CN107321959A (en) * | 2017-09-05 | 2017-11-07 | 哈尔滨工业大学 | Large ship rises liquid disabling mechanism with copper alloy propeller counter-pressure casting |
| CN107498027A (en) * | 2017-09-05 | 2017-12-22 | 哈尔滨工业大学 | Large ship rises liquid method with the automatic cut-off of copper alloy propeller antigravity casting |
| CN107321959B (en) * | 2017-09-05 | 2019-04-16 | 哈尔滨工业大学 | Large ship rises liquid disabling mechanism with copper alloy propeller counter-pressure casting |
| CN110756787A (en) * | 2019-10-22 | 2020-02-07 | 广西科创机械股份有限公司 | Casting equipment and casting method thereof |
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