GB866372A - Improvements in or relating to the casting of metals - Google Patents
Improvements in or relating to the casting of metalsInfo
- Publication number
- GB866372A GB866372A GB3248258A GB3248258A GB866372A GB 866372 A GB866372 A GB 866372A GB 3248258 A GB3248258 A GB 3248258A GB 3248258 A GB3248258 A GB 3248258A GB 866372 A GB866372 A GB 866372A
- Authority
- GB
- United Kingdom
- Prior art keywords
- parts
- sodium silicate
- silicate solution
- hardened
- mixture
- 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
- 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)
- Mold Materials And Core Materials (AREA)
Abstract
A mix for making a moulding die comprises 95 parts of Swedish iron sponge powder and 5 parts of electrolytic copper powder mixed with 10 parts of aqueous sodium silicate solution of S.G. 1.56 and molar ratio Na2O : SiO2 of 1 : 2.05 2 parts by weight of molybdenum disulphide may be added, and the copper powder may be omitted. The mixture is hardened by CO2 gas and may then be dried by heating and if desired fired to sinter the metal particles. Specification 866,373 is referred to.ALSO:A foundry mould or moulding die has at least a self-sustaining p portion thereof made from a moulding material comprising a mixture of metal powder or powders and aqueous sodium silicate solution, said self-sustaining portion forming the moulding surface and having been hardened by the removal of water from the sodium silicate solution or by chemical action on the sodium silicate solution. The metal powder may be a mixture of Swedish sponge iron and copper, and some molybdenum disulphide may be included. The binder may be hardened by heating or CO2 gas, and the mould may be fired to sinter the metal particles Specification 866,373 is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3248258A GB866372A (en) | 1958-10-10 | 1958-10-10 | Improvements in or relating to the casting of metals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3248258A GB866372A (en) | 1958-10-10 | 1958-10-10 | Improvements in or relating to the casting of metals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB866372A true GB866372A (en) | 1961-04-26 |
Family
ID=10339253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3248258A Expired GB866372A (en) | 1958-10-10 | 1958-10-10 | Improvements in or relating to the casting of metals |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB866372A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991004118A1 (en) * | 1989-09-15 | 1991-04-04 | Mclaughlin Timothy M | Mold element construction and related method |
| WO2015081923A1 (en) * | 2013-12-06 | 2015-06-11 | Hanseatische Waren Handelsgesellschaft Mbh & Co. Kg | Device and method for the production of near net-shape tial components |
-
1958
- 1958-10-10 GB GB3248258A patent/GB866372A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991004118A1 (en) * | 1989-09-15 | 1991-04-04 | Mclaughlin Timothy M | Mold element construction and related method |
| WO2015081923A1 (en) * | 2013-12-06 | 2015-06-11 | Hanseatische Waren Handelsgesellschaft Mbh & Co. Kg | Device and method for the production of near net-shape tial components |
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