GB1408266A - Mould forming process - Google Patents
Mould forming processInfo
- Publication number
- GB1408266A GB1408266A GB4857571A GB4857571A GB1408266A GB 1408266 A GB1408266 A GB 1408266A GB 4857571 A GB4857571 A GB 4857571A GB 4857571 A GB4857571 A GB 4857571A GB 1408266 A GB1408266 A GB 1408266A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pattern
- binder
- refractory
- silicates
- oct
- 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
- 239000011230 binding agent Substances 0.000 abstract 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 3
- -1 alkyl silicates Chemical class 0.000 abstract 3
- 239000002270 dispersing agent Substances 0.000 abstract 3
- 239000007788 liquid Substances 0.000 abstract 3
- 239000011819 refractory material Substances 0.000 abstract 3
- 238000005495 investment casting Methods 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 2
- 239000002562 thickening agent Substances 0.000 abstract 2
- 230000009974 thixotropic effect Effects 0.000 abstract 2
- 238000007605 air drying Methods 0.000 abstract 1
- 150000001298 alcohols Chemical class 0.000 abstract 1
- 229910052910 alkali metal silicate Inorganic materials 0.000 abstract 1
- ILRRQNADMUWWFW-UHFFFAOYSA-K aluminium phosphate Chemical compound O1[Al]2OP1(=O)O2 ILRRQNADMUWWFW-UHFFFAOYSA-K 0.000 abstract 1
- 229940001007 aluminium phosphate Drugs 0.000 abstract 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 abstract 1
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 abstract 1
- 229910021485 fumed silica Inorganic materials 0.000 abstract 1
- 150000002334 glycols Chemical class 0.000 abstract 1
- 239000011396 hydraulic cement Substances 0.000 abstract 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 abstract 1
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 abstract 1
- 239000000391 magnesium silicate Substances 0.000 abstract 1
- 229910052919 magnesium silicate Inorganic materials 0.000 abstract 1
- 235000019792 magnesium silicate Nutrition 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 239000002798 polar solvent Substances 0.000 abstract 1
- 239000000843 powder Substances 0.000 abstract 1
- 239000002987 primer (paints) Substances 0.000 abstract 1
- 150000004760 silicates Chemical class 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical class O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
- B22C1/16—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents
- B22C1/18—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of inorganic agents
- B22C1/183—Sols, colloids or hydroxide gels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
- B22C1/16—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents
- B22C1/165—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents in the manufacture of multilayered shell moulds
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Dispersion Chemistry (AREA)
- Mold Materials And Core Materials (AREA)
Abstract
1408266 Refractory moulds IMPERIAL CHEMICAL INDUSTRIES Ltd 5 Oct 1972 [19 Oct 1971] 48575/71 Heading C1J [Also in Divisions B5 and C3] An investment casting mould is made by coating a pattern with a thixotropic mixture comprising a refractory material, a binder, a liquid dispersant for the binder, and a thickening agent (to impart thixotropicity) which requires a shear stress of at least 1000.dynes/cm.<SP>2</SP> (preferably at least 3000) to break its structure from solid to liquid, the mixture being vibrated for at least some of the time that the pattern is immersed in it. Preferably the vibration is such as to reduce to viscosity in the vicinity of the pattern to 10-25 poises and additionally the pattern is oscillated. A conventional fine-grain primer coating may be applied first followed by a stucco coat and one or more thixotropic coats. Any suitable thickening agent may be used, e.g. fumed silica or treated clays such as beneficiated hydrous magnesium silicate and a small amount of dispersing agent, e.g. diethanolamine may be added. The refractory material is preferably a powder, 50% of which has a particle size below 0À15 mm. Examples given include silicates, clays, oxides and many other refractory materials of the kind used in investment casting. Airdrying binders are preferred, e.g. alkyl silicates, alkali-metal silicates, silica sols. aluminium oxychloride, aluminium phosphate, gypsumsilica mixes and hydraulic cements. The liquid dispersant is preferably a solvent for the binder and may be a polar solvent; examples given include water, mineral acids, alcohols, glycols and glycol ethers.
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE790261D BE790261A (en) | 1971-10-19 | MOLDING PROCESS | |
GB4857571A GB1408266A (en) | 1971-10-19 | 1971-10-19 | Mould forming process |
US296138A US3910798A (en) | 1971-10-19 | 1972-10-10 | Moulding process |
ZA727254A ZA727254B (en) | 1971-10-19 | 1972-10-11 | Moulding process |
AU47677/72A AU471538B2 (en) | 1971-10-19 | 1972-10-12 | Moulding process |
IT30639/72A IT969672B (en) | 1971-10-19 | 1972-10-18 | FORMING PROCESS |
FR7236934A FR2156798B1 (en) | 1971-10-19 | 1972-10-18 | |
DE2251050A DE2251050A1 (en) | 1971-10-19 | 1972-10-18 | METHOD AND MIXTURE FOR MAKING AN INCLUSION MOLD |
JP47104076A JPS4849623A (en) | 1971-10-19 | 1972-10-19 | |
CA154,562A CA974703A (en) | 1971-10-19 | 1972-10-19 | Moulding process |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4857571A GB1408266A (en) | 1971-10-19 | 1971-10-19 | Mould forming process |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1408266A true GB1408266A (en) | 1975-10-01 |
Family
ID=10449100
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4857571A Expired GB1408266A (en) | 1971-10-19 | 1971-10-19 | Mould forming process |
Country Status (10)
Country | Link |
---|---|
US (1) | US3910798A (en) |
JP (1) | JPS4849623A (en) |
AU (1) | AU471538B2 (en) |
BE (1) | BE790261A (en) |
CA (1) | CA974703A (en) |
DE (1) | DE2251050A1 (en) |
FR (1) | FR2156798B1 (en) |
GB (1) | GB1408266A (en) |
IT (1) | IT969672B (en) |
ZA (1) | ZA727254B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6755237B2 (en) | 2000-03-17 | 2004-06-29 | Daniel James Duffey | Investment casting |
CN106238670A (en) * | 2016-09-19 | 2016-12-21 | 韩昊喆 | Foundry facing and preparation method and application |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1035539A (en) * | 1975-09-26 | 1978-08-01 | Her Majesty In Right Of Canada As Represented By The Minister Of Energy, Mines And Resources | Method of forming foundry moulds |
US4041000A (en) * | 1975-12-12 | 1977-08-09 | Alexander Farcnik | Making fireproof non-polluting liquid coating composition |
US4196011A (en) * | 1976-07-28 | 1980-04-01 | Hitachi, Ltd. | Self-hardening water-soluble mold and process for producing the same |
US4093778A (en) * | 1976-09-10 | 1978-06-06 | Nalco Chemical Company | Ingot mold for producing steel ingots |
US4966225A (en) * | 1988-06-13 | 1990-10-30 | Howmet Corporation | Ceramic shell mold for investment casting and method of making the same |
US5858083A (en) * | 1994-06-03 | 1999-01-12 | National Gypsum Company | Cementitious gypsum-containing binders and compositions and materials made therefrom |
US5718759A (en) * | 1995-02-07 | 1998-02-17 | National Gypsum Company | Cementitious gypsum-containing compositions and materials made therefrom |
US6540013B1 (en) * | 2001-06-07 | 2003-04-01 | Ondeo Nalco Company | Method of increasing the strength and solids level of investment casting shells |
CN101626854B (en) | 2007-01-29 | 2012-07-04 | 赢创德固赛有限责任公司 | Fumed metal oxides for investment casting |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR981804A (en) * | 1949-02-25 | 1951-05-30 | Ford | Thixotropic coating material for foundry molds, its preparation process and molds obtained using this material |
US2908952A (en) * | 1957-05-22 | 1959-10-20 | Gen Motors Corp | Method of forming an investment mold |
US3005244A (en) * | 1958-06-09 | 1961-10-24 | Howe Sound Co | Production of shell molds |
US3243397A (en) * | 1961-08-18 | 1966-03-29 | Gen Motors Corp | Mold and core coating composition from calcined hydrated aluminum silicate, mica, and bentonite |
US3241200A (en) * | 1963-09-20 | 1966-03-22 | Howe Sound Co | Precision mold and method of fabrication |
US3421909A (en) * | 1963-10-03 | 1969-01-14 | Du Pont | Siliceous compositions containing azo aromatic compounds as stabilizers |
US3519444A (en) * | 1968-04-12 | 1970-07-07 | Quaker Oats Co | Static mold release agent |
-
0
- BE BE790261D patent/BE790261A/en unknown
-
1971
- 1971-10-19 GB GB4857571A patent/GB1408266A/en not_active Expired
-
1972
- 1972-10-10 US US296138A patent/US3910798A/en not_active Expired - Lifetime
- 1972-10-11 ZA ZA727254A patent/ZA727254B/en unknown
- 1972-10-12 AU AU47677/72A patent/AU471538B2/en not_active Expired
- 1972-10-18 DE DE2251050A patent/DE2251050A1/en active Pending
- 1972-10-18 FR FR7236934A patent/FR2156798B1/fr not_active Expired
- 1972-10-18 IT IT30639/72A patent/IT969672B/en active
- 1972-10-19 CA CA154,562A patent/CA974703A/en not_active Expired
- 1972-10-19 JP JP47104076A patent/JPS4849623A/ja active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6755237B2 (en) | 2000-03-17 | 2004-06-29 | Daniel James Duffey | Investment casting |
CN106238670A (en) * | 2016-09-19 | 2016-12-21 | 韩昊喆 | Foundry facing and preparation method and application |
CN106238670B (en) * | 2016-09-19 | 2019-01-04 | 韩昊喆 | Foundry facing and preparation method and application |
Also Published As
Publication number | Publication date |
---|---|
CA974703A (en) | 1975-09-23 |
US3910798A (en) | 1975-10-07 |
ZA727254B (en) | 1973-06-27 |
BE790261A (en) | 1973-04-18 |
IT969672B (en) | 1974-04-10 |
DE2251050A1 (en) | 1973-04-26 |
JPS4849623A (en) | 1973-07-13 |
AU471538B2 (en) | 1976-04-29 |
FR2156798A1 (en) | 1973-06-01 |
FR2156798B1 (en) | 1976-08-20 |
AU4767772A (en) | 1974-04-26 |
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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 |