GB1018030A - Improvements in or relating to methods of making moulds - Google Patents
Improvements in or relating to methods of making mouldsInfo
- Publication number
- GB1018030A GB1018030A GB36738/64A GB3673864A GB1018030A GB 1018030 A GB1018030 A GB 1018030A GB 36738/64 A GB36738/64 A GB 36738/64A GB 3673864 A GB3673864 A GB 3673864A GB 1018030 A GB1018030 A GB 1018030A
- Authority
- GB
- United Kingdom
- Prior art keywords
- binder
- pattern
- refractory
- layer
- silicate
- 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
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
- B22C9/04—Use of lost patterns
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Dispersion Chemistry (AREA)
- Mold Materials And Core Materials (AREA)
Abstract
1,018,030. Moulding processes. PHILIPS ELECTRONIC AND ASSOCIATED INDUSTRIES Ltd. Sept. 8, 1964 [Sept. 11, 1963], No. 36738/64. Heading B3F. A moulding process comprises coating a pattern with a layer of a fine-grained refractory and a binder, applying a layer of coarse-grained refractory thereto while still wet, allowing the layers to dry, then wetting the dry coated pattern with a binder and arranging it in a mould box and packing with a granular refractory and allowing said second binder to solidify, then removing the pattern. The pattern may be coated with a release agent such as petroleum jelly or silicone grease. The first coating layer may be zirconium silicate, aluminium oxide or aluminium silicate, with a silicic acid sol as binder, applied as an ethanolic suspension and hardened by the action of ammonia, by spraying with e.g. an aqueous solution of ammonium acetate, or by heating. The coarse-grained refractory may be aluminium silicate. The second binder may be a silicic acid sol, albumins, sodium silicate solutions and methyl cellulose, and the back-up material may be moulding sand. A surface-active substance such as sodium dodecyl naphthyl sulphonate may be added to the binder to promote wetting of part of the backing material thereby. Solidification of the second binder may be initiated by adding a coagulating substance to the back-up refractory or to the binder.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL297791 | 1963-09-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1018030A true GB1018030A (en) | 1966-01-26 |
Family
ID=19755036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB36738/64A Expired GB1018030A (en) | 1963-09-11 | 1964-09-08 | Improvements in or relating to methods of making moulds |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3339621A (en) |
| BE (1) | BE652877A (en) |
| CH (1) | CH425095A (en) |
| DE (1) | DE1234939B (en) |
| ES (1) | ES303898A1 (en) |
| GB (1) | GB1018030A (en) |
| NL (1) | NL297791A (en) |
| SE (1) | SE303016B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2116889A (en) * | 1982-03-23 | 1983-10-05 | Acme Conveyors & Constr | A process of moulding a metal casting mould |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB672535A (en) * | 1950-02-06 | 1952-05-21 | Bristol Aeroplane Co Ltd | Improvements in or relating to refractory moulds |
| DE1143609B (en) * | 1952-08-26 | 1963-02-14 | Boehler & Co Ag Geb | Process for the production of molds for the precision casting process |
| US2806269A (en) * | 1952-09-11 | 1957-09-17 | Rolls Royce | Moulds for precision casting |
| GB823970A (en) * | 1956-07-25 | 1959-11-18 | Rolls Royce | Moulds for precision casting of metals |
| US2948935A (en) * | 1958-04-07 | 1960-08-16 | Richard T Carter | Process of making refractory shell for casting metal |
| FR1339758A (en) * | 1962-10-31 | 1963-10-11 | Process for manufacturing fabrics with particular properties, for example pesticides or antiseptics |
-
0
- NL NL297791D patent/NL297791A/xx unknown
-
1964
- 1964-09-07 DE DEN25474A patent/DE1234939B/en active Pending
- 1964-09-08 GB GB36738/64A patent/GB1018030A/en not_active Expired
- 1964-09-08 CH CH1171264A patent/CH425095A/en unknown
- 1964-09-09 ES ES0303898A patent/ES303898A1/en not_active Expired
- 1964-09-09 BE BE652877A patent/BE652877A/xx unknown
- 1964-09-10 SE SE10854/64A patent/SE303016B/xx unknown
-
1966
- 1966-11-14 US US594256A patent/US3339621A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2116889A (en) * | 1982-03-23 | 1983-10-05 | Acme Conveyors & Constr | A process of moulding a metal casting mould |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1234939B (en) | 1967-02-23 |
| CH425095A (en) | 1966-11-30 |
| NL297791A (en) | |
| ES303898A1 (en) | 1965-03-16 |
| SE303016B (en) | 1968-08-12 |
| BE652877A (en) | 1965-03-09 |
| US3339621A (en) | 1967-09-05 |
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