GB1171295A - Improvements in Diecasting - Google Patents
Improvements in DiecastingInfo
- Publication number
- GB1171295A GB1171295A GB5022765A GB5022765A GB1171295A GB 1171295 A GB1171295 A GB 1171295A GB 5022765 A GB5022765 A GB 5022765A GB 5022765 A GB5022765 A GB 5022765A GB 1171295 A GB1171295 A GB 1171295A
- Authority
- GB
- United Kingdom
- Prior art keywords
- die
- pressure
- vessel
- molten metal
- casting
- 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
1,171,295. Die-casting. ASSOCIATED ENG. Ltd. 23 Nov., 1966 [25 Nov., 1965], No. 50227/65. Heading B3F. In a method of low pressure die-casting molten metal 2 is transferred from a crucible 1 into a die 33 by using a pressure vessel 3 partly submerged in the molten metal 2 and having a valve 20, 21 in its bottom to allow equalization of the level of the molten metal inside and outside of the vessel 3 and a means for creating a higher pressure in the vessel above the molten metal relative to the pressure within the die so that molten metal is passed via a heated transfer tube 28 into the die 33. The relatively higher pressure may be brought about by increasing the pressure in the vessel 3, or by a combination of pressure values applied to the pressure vessels and dies. One vessel 3 may supply one or more dies and a plurality of vessels 3 may be used to supply a plurality of dies that may require different casting time cycles, feeding techniques and casting pressures. Pressurizing medium for the vessel 3 may be compressed air or an inert gas, e.g. nitrogen, argon or carbon dioxide. The pressure may initially be such as to slowly feed the die without turbulence and then is increased, and a nozzle 29 at the end of the transfer tube 28 is designed to give optimum flow and cooling characteristics. The valve 20, 21, which may be water-cooled, is operated by a rod 22 by mechanical, pneumatic, hydraulic, electrical or gravity means. The die is formed in two parts that are closed together by jacks 34 and clamped by jacks 35 in sequence. A control sequence (Fig. 4, not shown) is described and includes pilot switches, timers &c. for controlling a casting operation including the insertion and removal of cores in the die. Ceramic coating or linings may be used in the apparatus and the vessel 3 may be made of ceramic with an integral transfer tube 28. The materials cast may be aluminium and magnesium based alloys.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5022765A GB1171295A (en) | 1965-11-25 | 1965-11-25 | Improvements in Diecasting |
DE19661508772 DE1508772A1 (en) | 1965-11-25 | 1966-11-19 | Method and device for the production of metallic injection molding |
FR85066A FR1501624A (en) | 1965-11-25 | 1966-11-25 | Shell molding improvements |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5022765A GB1171295A (en) | 1965-11-25 | 1965-11-25 | Improvements in Diecasting |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1171295A true GB1171295A (en) | 1969-11-19 |
Family
ID=10455150
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5022765A Expired GB1171295A (en) | 1965-11-25 | 1965-11-25 | Improvements in Diecasting |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE1508772A1 (en) |
FR (1) | FR1501624A (en) |
GB (1) | GB1171295A (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3980125A (en) * | 1974-05-10 | 1976-09-14 | Societe De Vente De L'aluminium Pechiney | Apparatus for molding at low pressure |
GB2159445A (en) * | 1984-06-02 | 1985-12-04 | Cosworth Res & Dev Ltd | Low-pressure, upward casting of metal articles |
US4693292A (en) * | 1984-06-02 | 1987-09-15 | Cosworth Research And Development Limited | Casting of metal articles |
US4763717A (en) * | 1975-01-02 | 1988-08-16 | Pierre Lajoye | Centrifugal method and apparatus for melting and casting of metal alloys |
US5590681A (en) * | 1993-07-02 | 1997-01-07 | Frank W. Schaefer, Inc. | Valve assembly |
US5725043A (en) * | 1993-07-02 | 1998-03-10 | Frank W. Schaefer, Inc. | Low pressure casting process and apparatus |
EP0967034A1 (en) * | 1998-06-27 | 1999-12-29 | John Campbell | Dispensing apparatus and method |
US6152159A (en) * | 1997-01-14 | 2000-11-28 | Frank W. Schaefer, Inc. | Valve assembly and method for use in delivery of molten metal |
US6841120B2 (en) | 2002-06-13 | 2005-01-11 | Alotech Ltd. Llc | Dispensing apparatus and method |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES394385A1 (en) * | 1970-08-28 | 1975-06-16 | Gravicast Patentverwertungs Ge | Casting apparatus |
BG22157A1 (en) * | 1975-10-27 | 1977-05-20 | ||
DE102022203268A1 (en) | 2022-04-01 | 2023-10-05 | Friedrich-Alexander-Universität Erlangen-Nürnberg, Körperschaft des öffentlichen Rechts | Casting process for producing a metallic component and casting device |
-
1965
- 1965-11-25 GB GB5022765A patent/GB1171295A/en not_active Expired
-
1966
- 1966-11-19 DE DE19661508772 patent/DE1508772A1/en active Pending
- 1966-11-25 FR FR85066A patent/FR1501624A/en not_active Expired
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3980125A (en) * | 1974-05-10 | 1976-09-14 | Societe De Vente De L'aluminium Pechiney | Apparatus for molding at low pressure |
US4763717A (en) * | 1975-01-02 | 1988-08-16 | Pierre Lajoye | Centrifugal method and apparatus for melting and casting of metal alloys |
GB2159445A (en) * | 1984-06-02 | 1985-12-04 | Cosworth Res & Dev Ltd | Low-pressure, upward casting of metal articles |
US4693292A (en) * | 1984-06-02 | 1987-09-15 | Cosworth Research And Development Limited | Casting of metal articles |
US5590681A (en) * | 1993-07-02 | 1997-01-07 | Frank W. Schaefer, Inc. | Valve assembly |
US5725043A (en) * | 1993-07-02 | 1998-03-10 | Frank W. Schaefer, Inc. | Low pressure casting process and apparatus |
US6152159A (en) * | 1997-01-14 | 2000-11-28 | Frank W. Schaefer, Inc. | Valve assembly and method for use in delivery of molten metal |
EP0967034A1 (en) * | 1998-06-27 | 1999-12-29 | John Campbell | Dispensing apparatus and method |
US6841120B2 (en) | 2002-06-13 | 2005-01-11 | Alotech Ltd. Llc | Dispensing apparatus and method |
EP1511866A1 (en) * | 2002-06-13 | 2005-03-09 | Alotech Ltd Llc | Dispensing apparatus and method |
EP1511866A4 (en) * | 2002-06-13 | 2005-11-30 | Alotech Ltd Llc | Dispensing apparatus and method |
Also Published As
Publication number | Publication date |
---|---|
DE1508772A1 (en) | 1969-11-06 |
FR1501624A (en) | 1967-11-10 |
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