GB1489883A - Directional solidification in casting moulds - Google Patents
Directional solidification in casting mouldsInfo
- Publication number
- GB1489883A GB1489883A GB47174/74A GB4717474A GB1489883A GB 1489883 A GB1489883 A GB 1489883A GB 47174/74 A GB47174/74 A GB 47174/74A GB 4717474 A GB4717474 A GB 4717474A GB 1489883 A GB1489883 A GB 1489883A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mould
- chill
- chamber
- zone
- heat
- 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
- B22D27/15—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting by using vacuum
-
- 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
- B22D27/04—Influencing the temperature of the metal, e.g. by heating or cooling the mould
- B22D27/045—Directionally solidified castings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
1489883 Directional solidification GENERAL ELECTRIC CO 31 Oct 1974 [1 Nov 1973] 47174/74 Heading B3F In a method for directional solidification of molten metal in a mould 40 (dotted lines), heat is initially removed from the base 47 of the mould by a chill 46, the mould is lowered such that the chill 46 moves out from a passage 32 in a further chill 28, heat is then removed from the base 47 and the side walls 43 of the mould by the chill members 46, 28, respectively, prior to and during the lowering heat is supplied to the mould by a plurality of independently controllable heating zones (e.g. 20a, 20b, 20c) in order to maintain the solidification front level with a top surface 30 of the chill member 28. The following cycle for casting an article is disclosed; solid metal is placed in a top portion 45 of the mould 40, the mould is placed on the chill member 46 in a lower chamber 12, a door 38 seals the chamber 12, a vacuum is established in the chamber 12 by a pump 19, a vacuum valve 14 is opened and the mould is raised into a vacuum furnace 21 in an upper chamber 10 by an elevator 50. Three heating zones 20a, 20b, 20c in the furnace 21 are concurrently activated, zone 20a primarily melting the metal, and zone 20c being maintained at a higher temperature than the zone 20b. Following melting, the mould is controllably lowered and the heating zones controlled to maintain the solidification front level with the top surface of the chill member 28. The lowering of the mould, the zones and the pump may all be automatically controlled by a process control unit 54. The chill members may be water-cooled.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US411925A US3897815A (en) | 1973-11-01 | 1973-11-01 | Apparatus and method for directional solidification |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1489883A true GB1489883A (en) | 1977-10-26 |
Family
ID=23630831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB47174/74A Expired GB1489883A (en) | 1973-11-01 | 1974-10-31 | Directional solidification in casting moulds |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3897815A (en) |
| JP (1) | JPS5079426A (en) |
| BE (1) | BE821765A (en) |
| CA (1) | CA1031929A (en) |
| DE (1) | DE2451464C2 (en) |
| FR (1) | FR2249731B1 (en) |
| GB (1) | GB1489883A (en) |
| IT (1) | IT1025249B (en) |
Families Citing this family (32)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4178986A (en) * | 1978-03-31 | 1979-12-18 | General Electric Company | Furnace for directional solidification casting |
| FR2604378B1 (en) * | 1978-06-30 | 1989-10-27 | Snecma | FOUNDRY APPARATUS FOR THE MANUFACTURE OF MOLDED METAL PARTS WITH ORIENTED STRUCTURE |
| US4190094A (en) * | 1978-10-25 | 1980-02-26 | United Technologies Corporation | Rate controlled directional solidification method |
| US5399313A (en) * | 1981-10-02 | 1995-03-21 | General Electric Company | Nickel-based superalloys for producing single crystal articles having improved tolerance to low angle grain boundaries |
| US4541475A (en) * | 1981-12-30 | 1985-09-17 | Rolls-Royce Limited | Method of, and apparatus for, producing castings in a vacuum |
| DE3417731A1 (en) * | 1984-05-12 | 1985-11-14 | Leybold-Heraeus GmbH, 5000 Köln | VACUUM PRECISION MELTING AND POURING OVEN WITH MELTING CHAMBER AND CHILLING CHAMBER |
| US4659288A (en) * | 1984-12-10 | 1987-04-21 | The Garrett Corporation | Dual alloy radial turbine rotor with hub material exposed in saddle regions of blade ring |
| DE3608587A1 (en) * | 1986-03-14 | 1987-09-17 | Leybold Heraeus Gmbh & Co Kg | LIFTING DEVICE FOR CASTING MOLDS IN PLANT OVENS |
| GB2234521B (en) * | 1986-03-27 | 1991-05-01 | Gen Electric | Nickel-base superalloys for producing single crystal articles having improved tolerance to low angle grain boundaries |
| US4925636A (en) * | 1987-12-14 | 1990-05-15 | Grumman Aerospace Corporation | Apparatus for directional solidification of a crystal material |
| US5116456A (en) * | 1988-04-18 | 1992-05-26 | Solon Technologies, Inc. | Apparatus and method for growth of large single crystals in plate/slab form |
| US5232043A (en) * | 1989-03-14 | 1993-08-03 | Leybold Aktiengesellschaft | Device for identifying the solid-liquid interface of a melt |
| US5248377A (en) * | 1989-12-01 | 1993-09-28 | Grumman Aerospace Corporation | Crystal-growth furnace for interface curvature control |
| DE4018924A1 (en) * | 1990-06-13 | 1991-12-19 | Leybold Ag | METHOD FOR PRODUCING DIRECTLY SOLID COCKS |
| US5197531A (en) * | 1990-06-13 | 1993-03-30 | Leybold Aktiengesellschaft | Method of manufacturing directionally solidified castings |
| DE19539770A1 (en) * | 1995-06-20 | 1997-01-02 | Abb Research Ltd | Process for producing a directionally solidified casting and device for carrying out this process |
| US5931214A (en) * | 1997-08-07 | 1999-08-03 | Howmet Research Corporation | Mold heating vacuum casting furnace |
| DE29715846U1 (en) * | 1997-09-04 | 1997-12-11 | ALD Vacuum Technologies GmbH, 63526 Erlensee | Device for the directional solidification of melts |
| AU2027000A (en) * | 1998-11-20 | 2000-09-21 | Allison Engine Company, Inc. | Method and apparatus for production of a cast component |
| US7418993B2 (en) * | 1998-11-20 | 2008-09-02 | Rolls-Royce Corporation | Method and apparatus for production of a cast component |
| US6206081B1 (en) | 1999-05-04 | 2001-03-27 | Chromalloy Gas Turbine Corporation | Withdrawal elevator mechanism for withdrawal furnace with a center cooling spool to produce DS/SC turbine airfoils |
| US6209618B1 (en) | 1999-05-04 | 2001-04-03 | Chromalloy Gas Turbine Corporation | Spool shields for producing variable thermal gradients in an investment casting withdrawal furnace |
| US6308767B1 (en) * | 1999-12-21 | 2001-10-30 | General Electric Company | Liquid metal bath furnace and casting method |
| US6896030B2 (en) * | 2003-07-30 | 2005-05-24 | Howmet Corporation | Directional solidification method and apparatus |
| EP1531020B1 (en) * | 2003-11-06 | 2007-02-07 | ALSTOM Technology Ltd | Method for casting a directionally solidified article |
| US20100132906A1 (en) * | 2008-12-03 | 2010-06-03 | Graham Lawrence D | Method of casting a metal article |
| US8186418B2 (en) * | 2010-09-30 | 2012-05-29 | General Electric Company | Unidirectional solidification process and apparatus therefor |
| US9381569B2 (en) * | 2013-03-07 | 2016-07-05 | Howmet Corporation | Vacuum or air casting using induction hot topping |
| RU2663025C1 (en) * | 2017-08-29 | 2018-08-01 | Публичное акционерное общество "Электромеханика" | Vacuum induction melting and casting unit |
| CN109365788B (en) * | 2018-11-07 | 2020-09-15 | 深圳市万泽中南研究院有限公司 | Method, system and apparatus for producing single crystal castings |
| CN113732272B (en) * | 2021-08-25 | 2022-06-03 | 中国联合重型燃气轮机技术有限公司 | Directional solidification device and directional solidification method |
| CN115365477B (en) * | 2022-10-26 | 2023-01-03 | 华北理工大学 | Vacuum pressure casting machine |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3376915A (en) * | 1964-10-21 | 1968-04-09 | Trw Inc | Method for casting high temperature alloys to achieve controlled grain structure and orientation |
| US3532155A (en) * | 1967-12-05 | 1970-10-06 | Martin Metals Co | Process for producing directionally solidified castings |
| US3690367A (en) * | 1968-07-05 | 1972-09-12 | Anadite Inc | Apparatus for the restructuring of metals |
| US3538981A (en) * | 1968-08-05 | 1970-11-10 | United Aircraft Corp | Apparatus for casting directionally solidified articles |
| US3700023A (en) * | 1970-08-12 | 1972-10-24 | United Aircraft Corp | Casting of directionally solidified articles |
| US3810504A (en) * | 1971-03-26 | 1974-05-14 | Trw Inc | Method for directional solidification |
| US3714977A (en) * | 1971-07-23 | 1973-02-06 | United Aircraft Corp | Method and apparatus for the production of directionally solidified castings |
| US3763926A (en) * | 1971-09-15 | 1973-10-09 | United Aircraft Corp | Apparatus for casting of directionally solidified articles |
| GB1349099A (en) * | 1971-12-04 | 1974-03-27 | Rolls Royce | Apparatus for casting in a vacuum |
| JPS5214845B2 (en) * | 1972-06-06 | 1977-04-25 |
-
1973
- 1973-11-01 US US411925A patent/US3897815A/en not_active Expired - Lifetime
-
1974
- 1974-09-24 CA CA209,943A patent/CA1031929A/en not_active Expired
- 1974-10-28 IT IT28856/74A patent/IT1025249B/en active
- 1974-10-29 FR FR7436057A patent/FR2249731B1/fr not_active Expired
- 1974-10-30 DE DE2451464A patent/DE2451464C2/en not_active Expired
- 1974-10-31 BE BE150133A patent/BE821765A/en not_active IP Right Cessation
- 1974-10-31 GB GB47174/74A patent/GB1489883A/en not_active Expired
- 1974-11-01 JP JP49125569A patent/JPS5079426A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR2249731A1 (en) | 1975-05-30 |
| DE2451464C2 (en) | 1984-04-26 |
| FR2249731B1 (en) | 1981-12-24 |
| US3897815A (en) | 1975-08-05 |
| IT1025249B (en) | 1978-08-10 |
| JPS5079426A (en) | 1975-06-27 |
| DE2451464A1 (en) | 1975-05-07 |
| CA1031929A (en) | 1978-05-30 |
| BE821765A (en) | 1975-02-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |