GB1238919A - - Google Patents
Info
- Publication number
- GB1238919A GB1238919A GB1238919DA GB1238919A GB 1238919 A GB1238919 A GB 1238919A GB 1238919D A GB1238919D A GB 1238919DA GB 1238919 A GB1238919 A GB 1238919A
- Authority
- GB
- United Kingdom
- Prior art keywords
- die
- cover
- molten metal
- compressed air
- pressure
- 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
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/09—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting by using pressure
- B22D27/13—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting by using pressure making use of gas pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
Abstract
1,238,919. Gravity die casting. COPAL FOUNDRIES Ltd. 16 Jan., 1970 [20 Oct., 1968], No. 39667/68. Heading B3F. A gravity die-casting apparatus comprises a die 7, means (10) for heating the die, means for applying a cover 4 over the or each feed point of the die, means for introducing air into the cover 4 and means for opening the die. The cover 4 may be moved into position by a piston- and-cylinder unit and an asbestos gasket 6 forms a seal between it and the surface of the die. Before the molten metal is poured into the cavity 9 the die is heated to a temperature at least 30‹ C. above the normal working temperature of the die, e.g. to between 350‹ and 500‹ C., when aluminium or its alloys are being cast. A pressure, e.g. of 5 to 25 p.s.i., is applied to the metal during its solidification by means of compressed air supplied through a pipe 1. A baffle-plate 5 prevents direct impingement of the air supply on the molten metal surface and a relief valve 3 prevents the pressure from rising above a predetermined value. The compressed air may be preheated, and the sequence of operations effected automatically.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3966768 | 1968-10-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1238919A true GB1238919A (en) | 1971-07-14 |
Family
ID=10410806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1238919D Expired GB1238919A (en) | 1968-10-20 | 1968-10-20 |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1238919A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4049041A (en) * | 1974-08-30 | 1977-09-20 | Institute Po Metalosnanie I Technologia Na Metalite Pri Ban | Method of and apparatus for fluid die stamping |
| EP0344010A1 (en) * | 1988-05-25 | 1989-11-29 | Ahresty Corporation | Die casting method |
| US5076341A (en) * | 1990-02-06 | 1991-12-31 | Mazda Motor Corporation | Compression casting method and apparatus therefor |
| CN105880543B (en) * | 2016-05-17 | 2019-01-25 | 洛阳秦汉精工股份有限公司 | A kind of quantitative casting method and quantitative pouring apparatus, forming device |
-
1968
- 1968-10-20 GB GB1238919D patent/GB1238919A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4049041A (en) * | 1974-08-30 | 1977-09-20 | Institute Po Metalosnanie I Technologia Na Metalite Pri Ban | Method of and apparatus for fluid die stamping |
| EP0344010A1 (en) * | 1988-05-25 | 1989-11-29 | Ahresty Corporation | Die casting method |
| US5076341A (en) * | 1990-02-06 | 1991-12-31 | Mazda Motor Corporation | Compression casting method and apparatus therefor |
| CN105880543B (en) * | 2016-05-17 | 2019-01-25 | 洛阳秦汉精工股份有限公司 | A kind of quantitative casting method and quantitative pouring apparatus, forming device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| 732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
| PE20 | Patent expired after termination of 20 years |