GB1479504A - Method for making disposable model for precision investment casting - Google Patents
Method for making disposable model for precision investment castingInfo
- Publication number
- GB1479504A GB1479504A GB4104074A GB4104074A GB1479504A GB 1479504 A GB1479504 A GB 1479504A GB 4104074 A GB4104074 A GB 4104074A GB 4104074 A GB4104074 A GB 4104074A GB 1479504 A GB1479504 A GB 1479504A
- Authority
- GB
- United Kingdom
- Prior art keywords
- moulding
- naphthalene
- model
- investment casting
- disposable
- 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
- B22C7/00—Patterns; Manufacture thereof so far as not provided for in other classes
- B22C7/02—Lost patterns
- B22C7/023—Patterns made from expanded plastic materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C7/00—Patterns; Manufacture thereof so far as not provided for in other classes
- B22C7/02—Lost patterns
Abstract
1479504 Moulding disposable investment casting patterns KUBOTA Ltd 20 Sept 1974 [20 Sept 1973] 41040/74 Heading B5A [Also in Division C3] A moulding material for the production of disposable investment cores comprises either (a) a major proportion of naphthalene or pdichlorobenzene or (b) a major proportion of a mixture of naphthalene or p-dichlorobenzene and a wax; the material is cast at a temperature of 150‹ C. or below, preferably at a speed of 5-0À1 kg./s. The moulding material may additionally comprise a resin such as polystyrene, polyethylene or polyvinyl acetate, in a minor amount. In an example, a mould for a gas turbine blade is formed by moulding a disposable model from naphthalene (100 parts) and polystyrene (1 part) and then investing the model with a slurry of colloidal silica and fused silica flour to give a silica shell 7 mm. thick.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10736973A JPS528248B2 (en) | 1973-09-20 | 1973-09-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1479504A true GB1479504A (en) | 1977-07-13 |
Family
ID=14457334
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4104074A Expired GB1479504A (en) | 1973-09-20 | 1974-09-20 | Method for making disposable model for precision investment casting |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPS528248B2 (en) |
CH (1) | CH604954A5 (en) |
FR (1) | FR2244584B1 (en) |
GB (1) | GB1479504A (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2329379A1 (en) * | 1975-10-27 | 1977-05-27 | Yates Mfg | Thermoplastic foundry pattern compsn. - contg. wax or (co)polystyrene and isopropylidene diphenol to improve dimensional stability |
US4064083A (en) * | 1976-06-28 | 1977-12-20 | Precision Metalsmiths, Inc. | Pattern material composition |
JPS5344427A (en) * | 1976-10-05 | 1978-04-21 | Kubota Ltd | Method to manufacture propellers by using extinguishable pattern |
JPS62145296U (en) * | 1986-03-08 | 1987-09-12 |
-
1973
- 1973-09-20 JP JP10736973A patent/JPS528248B2/ja not_active Expired
-
1974
- 1974-09-19 CH CH1269574A patent/CH604954A5/xx not_active IP Right Cessation
- 1974-09-20 FR FR7431924A patent/FR2244584B1/fr not_active Expired
- 1974-09-20 GB GB4104074A patent/GB1479504A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2244584A1 (en) | 1975-04-18 |
JPS5057025A (en) | 1975-05-19 |
CH604954A5 (en) | 1978-09-15 |
DE2444874B2 (en) | 1975-07-31 |
FR2244584B1 (en) | 1978-04-28 |
DE2444874A1 (en) | 1975-04-24 |
JPS528248B2 (en) | 1977-03-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |