GB248289A - Improvements in compositions for permanent moulds for metal casting - Google Patents
Improvements in compositions for permanent moulds for metal castingInfo
- Publication number
- GB248289A GB248289A GB2813525A GB2813525A GB248289A GB 248289 A GB248289 A GB 248289A GB 2813525 A GB2813525 A GB 2813525A GB 2813525 A GB2813525 A GB 2813525A GB 248289 A GB248289 A GB 248289A
- Authority
- GB
- United Kingdom
- Prior art keywords
- per cent
- mould
- sand
- sillimanite
- plaster
- 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
Abstract
248,289. Todd, H. Nov. 9, 1925. Mould and core materials.-A permanent mould for casting metals is made from a mixture of sillimanite or fibrolite, plaster of paris, and a fibrous material, with or without other usual moulding materials. The sillimanite may vary from 40 per cent to 85 per cent, the plaster from 5 per cent to 8 per cent, and the fibre from 2 per cent of cow hair to 7 per cent of asbestos by volume. 20 per cent to 30 per cent of monazite sand (silicate of zirconium) or other sand containing rare minerals, 10 per cent to 13 per cent of coke dust, 10 per cent to 13 per cent of ganister, and 3 per cent to 5 per cent of china clay may also be added. The mixture is moistened with a solution of sodium silicate, rammed about the pattern, and backed with strong sand and reinforcing rods. The mould is dried at a temperature rising to 500‹ C. in 12 hours or more and coated with wet mineral blacking. The material may also be used for repairing moulds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2813525A GB248289A (en) | 1925-11-09 | 1925-11-09 | Improvements in compositions for permanent moulds for metal casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2813525A GB248289A (en) | 1925-11-09 | 1925-11-09 | Improvements in compositions for permanent moulds for metal casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB248289A true GB248289A (en) | 1926-03-04 |
Family
ID=10270800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2813525A Expired GB248289A (en) | 1925-11-09 | 1925-11-09 | Improvements in compositions for permanent moulds for metal casting |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB248289A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2558402A (en) * | 1948-10-23 | 1951-06-26 | Whitehead Bros Co | Mold composition |
| US3163898A (en) * | 1960-05-06 | 1965-01-05 | Quigley Co | Sealing ring and mat for ingot mold |
| US3206154A (en) * | 1962-12-31 | 1965-09-14 | Quigley Co | Production of steel ingots |
-
1925
- 1925-11-09 GB GB2813525A patent/GB248289A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2558402A (en) * | 1948-10-23 | 1951-06-26 | Whitehead Bros Co | Mold composition |
| US3163898A (en) * | 1960-05-06 | 1965-01-05 | Quigley Co | Sealing ring and mat for ingot mold |
| US3206154A (en) * | 1962-12-31 | 1965-09-14 | Quigley Co | Production of steel ingots |
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