GB810988A - Improvements in and relating to foundry moulds and cores - Google Patents
Improvements in and relating to foundry moulds and coresInfo
- Publication number
- GB810988A GB810988A GB1970456A GB1970456A GB810988A GB 810988 A GB810988 A GB 810988A GB 1970456 A GB1970456 A GB 1970456A GB 1970456 A GB1970456 A GB 1970456A GB 810988 A GB810988 A GB 810988A
- Authority
- GB
- United Kingdom
- Prior art keywords
- per cent
- oil
- sand
- mixture
- tung
- 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
- B22C1/20—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 organic agents
- B22C1/24—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 organic agents of oily or fatty substances; of distillation residues therefrom
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Mold Materials And Core Materials (AREA)
Abstract
810,988. Mould and core materials. HARBOROUGH CONSTRUCTION CO. Ltd. May 22, 1957 [June 26, 1956], No. 19704/56. Class 83(1). A moulding mixture comprises sand, drying- oil and an accelerating agent consisting of, or comprising, potassium-permanganate. The drying-oil preferably consists of one or more oils with conjugated double bonds, such as tung, oiticica or linseed, which may have been pretreated by blowing or heat-polymerized, and may contain a proportion of metallic drier, the proportion of oil to sand usually being between 1 and 3 per cent. The amount of accelerator will depend upon sand and atmospheric temperature, mould thickness and desired hardening rate. In specific examples the mixture consists of 98 per cent silica-sand with 2 per cent of oil, the latter consisting of 94 per cent of a mixture of 85 per cent linseed oil and 15 per cent tung-oil, blown together and containing as drier 4 per cent of a 30 per cent lead-naphthenate solution, and 2 per cent of a 6 per cent cobalt-naphthenate solution, both in white spirit. The accelerating agent was 0.1 per cent of a 30 per cent potassium-permanganate and 70 per cent pulverized ball-clay mixture.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1970456A GB810988A (en) | 1956-06-26 | 1956-06-26 | Improvements in and relating to foundry moulds and cores |
| ES0235742A ES235742A1 (en) | 1956-06-26 | 1957-05-28 | Improvements in and relating to foundry moulds and cores |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1970456A GB810988A (en) | 1956-06-26 | 1956-06-26 | Improvements in and relating to foundry moulds and cores |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB810988A true GB810988A (en) | 1959-03-25 |
Family
ID=10133808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1970456A Expired GB810988A (en) | 1956-06-26 | 1956-06-26 | Improvements in and relating to foundry moulds and cores |
Country Status (2)
| Country | Link |
|---|---|
| ES (1) | ES235742A1 (en) |
| GB (1) | GB810988A (en) |
-
1956
- 1956-06-26 GB GB1970456A patent/GB810988A/en not_active Expired
-
1957
- 1957-05-28 ES ES0235742A patent/ES235742A1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| ES235742A1 (en) | 1958-03-16 |
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