GB812352A - Improvements in and relating to casting - Google Patents
Improvements in and relating to castingInfo
- Publication number
- GB812352A GB812352A GB10155A GB10155A GB812352A GB 812352 A GB812352 A GB 812352A GB 10155 A GB10155 A GB 10155A GB 10155 A GB10155 A GB 10155A GB 812352 A GB812352 A GB 812352A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pattern
- plate
- gas
- sheet
- dipped
- 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
- 238000005266 casting Methods 0.000 title 1
- ILRRQNADMUWWFW-UHFFFAOYSA-K Aluminium phosphate Chemical compound O1[Al]2OP1(=O)O2 ILRRQNADMUWWFW-UHFFFAOYSA-K 0.000 abstract 3
- 229940001007 aluminium phosphate Drugs 0.000 abstract 3
- 229910000147 aluminium phosphate Inorganic materials 0.000 abstract 3
- 239000000203 mixture Substances 0.000 abstract 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 3
- 239000002002 slurry Substances 0.000 abstract 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 2
- 238000000465 moulding Methods 0.000 abstract 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N AI2O3 Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 229920000126 Latex Polymers 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 239000008119 colloidal silica Substances 0.000 abstract 1
- YIXQSYHBXUBLPM-UHFFFAOYSA-N dioxido(oxo)silane;zirconium(4+) Chemical compound [Zr+4].[O-][Si]([O-])=O.[O-][Si]([O-])=O YIXQSYHBXUBLPM-UHFFFAOYSA-N 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 239000004816 latex Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000006011 modification reaction Methods 0.000 abstract 1
- -1 molochite Inorganic materials 0.000 abstract 1
- 229920001296 polysiloxane Polymers 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 229910052851 sillimanite Inorganic materials 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/12—Treating moulds or cores, e.g. drying, hardening
- B22C9/123—Gas-hardening
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
- Mold Materials And Core Materials (AREA)
Abstract
812,352. Moulding-processes and apparatus. METROPOLITAN-VICKERS ELECTRICAL CO. Ltd. Dec. 21, 1955 [Jan. 3, 1955; July 19, 1955; Aug. 11, 1955], Nos. 101/55, 20909/55 and 23223/55. Class 83 (1). Mould and core parts are formed of a refractory having mixed therewith aluminiumphosphate, and are hardened by ammonia-gas. The wood-pattern 1 on pattern-plate 2 is covered by a latex sheet 3 placed in position under tension and inflated to hemispherical form by application of pressure-air through a valve 8. The sheet, preferably coated with a silicone release agent, is then dipped in a colloidal silica slurry, and evacuating means is applied to the valve 8, whereby the sheet is drawn into intimate contact with the pattern. When dry, the pattern is dipped in an ethylsilicate-slurry, a stucco of coarse molochite applied, and after drying, the pattern is dipped in an aluminium-phosphate slurry. The moulding box 11, secured in a steel shell 12, is then placed in position on a bed plate 9a, filled with moulding mix 17, such as alumina, silica, molochite, sillimanite or zirconium-silicate, with 3-4 per cent by volume of a dilute acid solution of aluminium-phosphate, and the top of the box closed by a plate 18, through which ammonia-gas may be passed. A spring-loaded plate 22 applies pressure to the mix. The shell 12 and material 17 is then partially evacuated through a conduit 16, and ammonium-gas then allowed to enter to harden the mould. Stripping is achieved by readmitting air through valve 8 to beneath the sheet 3. In modifications, the gas is supplied under pressure to nozzles entering the mould-mix, through passages in a pressure plate and through ports and passages in the pattern plate and the pattern. Specifications 776,616 and 781,376, [both in Group V], are referred to.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB812352A true GB812352A (en) | 1959-04-22 |
Family
ID=1593248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB10155A Expired GB812352A (en) | 1955-01-03 | Improvements in and relating to casting |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB812352A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4036277A (en) * | 1975-10-17 | 1977-07-19 | J. R. Short Milling Co. | High speed method and apparatus for producing foundry molds |
| US4127157A (en) | 1977-03-07 | 1978-11-28 | Ashland Oil, Inc. | Aluminum phosphate binder composition cured with ammonia and amines |
| US4209056A (en) | 1977-03-07 | 1980-06-24 | Ashland Oil, Inc. | Aluminum phosphate binder composition cured with ammonia and amines |
| CN103506580A (en) * | 2013-10-30 | 2014-01-15 | 宜昌船舶柴油机有限公司 | Casting method for large thin-wall valve body steel casting |
| CN116511461A (en) * | 2023-04-24 | 2023-08-01 | 嘉兴合祖机电设备有限公司 | Die casting die for aluminum alloy shell of monitoring camera |
-
1955
- 1955-01-03 GB GB10155A patent/GB812352A/en not_active Expired
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4036277A (en) * | 1975-10-17 | 1977-07-19 | J. R. Short Milling Co. | High speed method and apparatus for producing foundry molds |
| US4127157A (en) | 1977-03-07 | 1978-11-28 | Ashland Oil, Inc. | Aluminum phosphate binder composition cured with ammonia and amines |
| US4209056A (en) | 1977-03-07 | 1980-06-24 | Ashland Oil, Inc. | Aluminum phosphate binder composition cured with ammonia and amines |
| CN103506580A (en) * | 2013-10-30 | 2014-01-15 | 宜昌船舶柴油机有限公司 | Casting method for large thin-wall valve body steel casting |
| CN103506580B (en) * | 2013-10-30 | 2016-02-10 | 宜昌船舶柴油机有限公司 | The casting method of large-scale thin-wall valve body steel-casting |
| CN116511461A (en) * | 2023-04-24 | 2023-08-01 | 嘉兴合祖机电设备有限公司 | Die casting die for aluminum alloy shell of monitoring camera |
| CN116511461B (en) * | 2023-04-24 | 2023-10-20 | 嘉兴合祖机电设备有限公司 | Die casting die for aluminum alloy shell of monitoring camera |
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