GB1342599A - Investment casting cores and their method of manufacture - Google Patents
Investment casting cores and their method of manufactureInfo
- Publication number
- GB1342599A GB1342599A GB1342599DA GB1342599A GB 1342599 A GB1342599 A GB 1342599A GB 1342599D A GB1342599D A GB 1342599DA GB 1342599 A GB1342599 A GB 1342599A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ceramic powder
- mixture
- shaped
- binder
- ceramic
- 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
- 238000000034 method Methods 0.000 title abstract 3
- 238000005495 investment casting Methods 0.000 title abstract 2
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- 239000000919 ceramic Substances 0.000 abstract 5
- 239000011230 binding agent Substances 0.000 abstract 4
- 239000000843 powder Substances 0.000 abstract 4
- 239000000203 mixture Substances 0.000 abstract 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 abstract 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 abstract 2
- QVQLCTNNEUAWMS-UHFFFAOYSA-N barium oxide Chemical compound [Ba]=O QVQLCTNNEUAWMS-UHFFFAOYSA-N 0.000 abstract 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 abstract 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- 241000907788 Cordia gerascanthus Species 0.000 abstract 1
- 239000002202 Polyethylene glycol Substances 0.000 abstract 1
- 239000004793 Polystyrene Substances 0.000 abstract 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 239000010427 ball clay Substances 0.000 abstract 1
- 239000000292 calcium oxide Substances 0.000 abstract 1
- 235000012255 calcium oxide Nutrition 0.000 abstract 1
- 239000001506 calcium phosphate Substances 0.000 abstract 1
- 229910000389 calcium phosphate Inorganic materials 0.000 abstract 1
- 235000011010 calcium phosphates Nutrition 0.000 abstract 1
- XFWJKVMFIVXPKK-UHFFFAOYSA-N calcium;oxido(oxo)alumane Chemical compound [Ca+2].[O-][Al]=O.[O-][Al]=O XFWJKVMFIVXPKK-UHFFFAOYSA-N 0.000 abstract 1
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 229910010293 ceramic material Inorganic materials 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 abstract 1
- 230000004907 flux Effects 0.000 abstract 1
- 239000011521 glass Substances 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000007924 injection Substances 0.000 abstract 1
- 238000001746 injection moulding Methods 0.000 abstract 1
- 150000002642 lithium compounds Chemical class 0.000 abstract 1
- 239000000395 magnesium oxide Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 150000002739 metals Chemical class 0.000 abstract 1
- 238000000465 moulding Methods 0.000 abstract 1
- 229910052863 mullite Inorganic materials 0.000 abstract 1
- 239000012188 paraffin wax Substances 0.000 abstract 1
- 229920000728 polyester Polymers 0.000 abstract 1
- 229920001223 polyethylene glycol Polymers 0.000 abstract 1
- 229920002223 polystyrene Polymers 0.000 abstract 1
- BITYAPCSNKJESK-UHFFFAOYSA-N potassiosodium Chemical compound [Na].[K] BITYAPCSNKJESK-UHFFFAOYSA-N 0.000 abstract 1
- 238000007493 shaping process Methods 0.000 abstract 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 abstract 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 abstract 1
- 229910010271 silicon carbide Inorganic materials 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 238000005245 sintering Methods 0.000 abstract 1
- 229920001169 thermoplastic Polymers 0.000 abstract 1
- 239000004416 thermosoftening plastic Substances 0.000 abstract 1
- 238000001721 transfer moulding Methods 0.000 abstract 1
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 abstract 1
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)
- Mold Materials And Core Materials (AREA)
Abstract
1342599 Core moulding processes DOULTON & CO Ltd 3 June 1971 [17 March 1970] 12808/70 Heading B3F [Also in Divisions B5 and C3] In a method of making mould cores for investment casting of metals, a mixture of a ceramic powder and an organic binder is shaped and heated to a temperature insufficient to sinter the ceramic powder but sufficient to remove 48 to 95% by weight of the organic binder and to carbonize the remainder thereby to form a non- thermoplastic body of ceramic powder bonded by carbonaceous residues, the binder being selected so as to decompose during the heating to leave a residue of 0À4 to 14% by weight of the total weight of ceramic powder and carbonaceous residue. The binder, which may be polystyrene, a polyester, polyethylene glycol, or paraffin wax is present in the mixture to be shaped in an amount of 8 to 27% of the total weight. The shaping may be carried out by injection or transfer moulding processes. A sintering flux may be included in the ceramic mixture to be shaped and may be a silica sol., sodium potassium or lithium compound, powdered glass, china or ball clays, or alkaline earth compounds. Ceramic materials mentioned are silica, zirconia, alumina, baria, calcia, magnesia, mullite, calcium phosphate or aluminate, silicon carbide and carbon.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1280870 | 1970-03-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1342599A true GB1342599A (en) | 1974-01-03 |
Family
ID=10011529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1342599D Expired GB1342599A (en) | 1970-03-17 | 1970-03-17 | Investment casting cores and their method of manufacture |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1342599A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4366269A (en) | 1979-06-09 | 1982-12-28 | Nissan Motor Co., Ltd. | Resin coated foundry sand using crystalline unsaturated polyester as binder |
| US5178673A (en) * | 1991-04-12 | 1993-01-12 | Union Carbide Chemicals & Plastics Technology Corporation | Investment casting compositions and processes for the manufacture and use thereof |
| GB2297285A (en) * | 1995-01-25 | 1996-07-31 | T & N Technology Ltd | Investment casting mould |
| US5730915A (en) * | 1993-12-08 | 1998-03-24 | Massachusetts Institute Of Technology | Method for preparation of casting tooling |
| CN114082881A (en) * | 2021-11-26 | 2022-02-25 | 江苏智疆航空科技发展有限公司 | Preparation method of silicon-based ceramic core for aircraft engine blade |
| CN119430863A (en) * | 2024-09-10 | 2025-02-14 | 吉林大学 | A soluble ceramic core using low-grade ball clay to grow mullite whiskers in situ |
-
1970
- 1970-03-17 GB GB1342599D patent/GB1342599A/en not_active Expired
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4366269A (en) | 1979-06-09 | 1982-12-28 | Nissan Motor Co., Ltd. | Resin coated foundry sand using crystalline unsaturated polyester as binder |
| US5178673A (en) * | 1991-04-12 | 1993-01-12 | Union Carbide Chemicals & Plastics Technology Corporation | Investment casting compositions and processes for the manufacture and use thereof |
| US5730915A (en) * | 1993-12-08 | 1998-03-24 | Massachusetts Institute Of Technology | Method for preparation of casting tooling |
| US5937932A (en) * | 1993-12-08 | 1999-08-17 | Massachusetts Institute Of Technology | Casting tooling |
| GB2297285A (en) * | 1995-01-25 | 1996-07-31 | T & N Technology Ltd | Investment casting mould |
| CN114082881A (en) * | 2021-11-26 | 2022-02-25 | 江苏智疆航空科技发展有限公司 | Preparation method of silicon-based ceramic core for aircraft engine blade |
| CN119430863A (en) * | 2024-09-10 | 2025-02-14 | 吉林大学 | A soluble ceramic core using low-grade ball clay to grow mullite whiskers in situ |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |