GB1199673A - Method of Casting a Light Metal - Google Patents
Method of Casting a Light MetalInfo
- Publication number
- GB1199673A GB1199673A GB1878568A GB1878568A GB1199673A GB 1199673 A GB1199673 A GB 1199673A GB 1878568 A GB1878568 A GB 1878568A GB 1878568 A GB1878568 A GB 1878568A GB 1199673 A GB1199673 A GB 1199673A
- Authority
- GB
- United Kingdom
- Prior art keywords
- core
- spigot
- mould
- ceramic
- cast
- 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
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/10—Cores; Manufacture or installation of cores
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
1,199,673. Casting processes; making cores. FORD MOTOR CO. Ltd. 20 April, 1968, No. 18785/68. Heading B3F. A light metal, e.g. aluminium article is pressure cast using a ceramic core that has an undercut portion and is breakable to permit removal from the mould after pouring. The core 23 is moulded in a two-part core-box 1 having a plug 22. A metallic spigot 15 surrounds the plug 22 and is incorporated in the core during moulding. The core moulding material is preferably de-aerated friable aluminium silicate which is self-setting. After removal from the mould the core on spigot 15 is fired at 1000‹ C. The spigot has been previously coated with wax or polyvinyl acetate which melts on firing to compensate for the different thermal expansion of ceramic and metal. In Fig. 2, an A1 piston is cast in a two-part mould 29 using the above prepared ceramic core. Molten Al is poured under pressure and gases produced are withdrawn from the mould through the central bore of the spigot via ceramic filled passages 19 (Fig. 1). After solidification, gudgeon 33 and crown 32 cores are removed and the mould 29 opened. The cast cylinder is gripped and the spigot 15 pulled away therefrom. In so doing, projections 34 on the spigot 15 break up the ceramic core part 25 (Fig. 1).
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1878568A GB1199673A (en) | 1968-04-20 | 1968-04-20 | Method of Casting a Light Metal |
DE19681805240 DE1805240A1 (en) | 1968-04-20 | 1968-10-25 | Casting hollow metal articles such as pistons using |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1878568A GB1199673A (en) | 1968-04-20 | 1968-04-20 | Method of Casting a Light Metal |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1199673A true GB1199673A (en) | 1970-07-22 |
Family
ID=10118399
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1878568A Expired GB1199673A (en) | 1968-04-20 | 1968-04-20 | Method of Casting a Light Metal |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE1805240A1 (en) |
GB (1) | GB1199673A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4298051A (en) * | 1978-05-25 | 1981-11-03 | Nl Industries, Inc. | Method of die casting utilizing expendable sand cores |
GB2183516A (en) * | 1985-11-30 | 1987-06-10 | Ford Motor Co | Pressure diecasting cores |
EP0699491A2 (en) * | 1994-08-30 | 1996-03-06 | Koji Hirokawa | Forming die, casting method using the forming die, core and casting method using the core |
CN108372278A (en) * | 2018-04-02 | 2018-08-07 | 广东劲胜智能集团股份有限公司 | The preparation method and device of the alloy pipe of controllable diameter and wall thickness |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH640160A5 (en) * | 1979-07-05 | 1983-12-30 | Fischer Ag Georg | MOULD WITH core puller. |
-
1968
- 1968-04-20 GB GB1878568A patent/GB1199673A/en not_active Expired
- 1968-10-25 DE DE19681805240 patent/DE1805240A1/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4298051A (en) * | 1978-05-25 | 1981-11-03 | Nl Industries, Inc. | Method of die casting utilizing expendable sand cores |
GB2183516A (en) * | 1985-11-30 | 1987-06-10 | Ford Motor Co | Pressure diecasting cores |
EP0699491A2 (en) * | 1994-08-30 | 1996-03-06 | Koji Hirokawa | Forming die, casting method using the forming die, core and casting method using the core |
EP0699491A3 (en) * | 1994-08-30 | 1996-12-18 | Koji Hirokawa | Forming die, casting method using the forming die, core and casting method using the core |
US5725044A (en) * | 1994-08-30 | 1998-03-10 | Hirokawa; Koji | Casting method using a forming die |
CN108372278A (en) * | 2018-04-02 | 2018-08-07 | 广东劲胜智能集团股份有限公司 | The preparation method and device of the alloy pipe of controllable diameter and wall thickness |
Also Published As
Publication number | Publication date |
---|---|
DE1805240A1 (en) | 1969-11-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |