GB1123591A - Sand moulding mixtures - Google Patents
Sand moulding mixturesInfo
- Publication number
- GB1123591A GB1123591A GB1156365A GB1156365A GB1123591A GB 1123591 A GB1123591 A GB 1123591A GB 1156365 A GB1156365 A GB 1156365A GB 1156365 A GB1156365 A GB 1156365A GB 1123591 A GB1123591 A GB 1123591A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mixture
- clay
- sand
- additive
- solid substance
- 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
- B22C1/02—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by additives for special purposes, e.g. indicators, breakdown additives
- B22C1/04—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by additives for special purposes, e.g. indicators, breakdown additives for protection of the casting, e.g. against decarbonisation
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
A process for the production of a sand moulding composition comprises adding to a mixture which includes sand and water an additive which is a preformed particulate solid substance which includes an absorbent solid impregnated with a liquid which is substantially non-volatile and stable at ordinary temperatures but which at high temperatures will generate a non-oxidizing atmosphere by volatilization or decomposition, the mixture or the solid substance including a proportion of clay. The solid substance itself may be clay such as bentonite, kaolin, or fuller's earth and the liquid constituent is an oil such as mineral oil e.g. crude oil or waste lubricating oil. The additive constitutes 0.5% to 20% by weight of the mixture. The mixture may also include a surface active agent such as pelleted pitch, a wetting agent and an ingredient such as tetrasodium pyrophosphate, as a pH buffering agent. To increase the gel forming properties of the clay magnesium oxide may be added. The ingredients referred to are usually combined with the additive for incorporation in the sand mixture.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1156365A GB1123591A (en) | 1965-03-18 | 1965-03-18 | Sand moulding mixtures |
US533426A US3440066A (en) | 1965-03-18 | 1966-03-11 | Sand moulding mixtures |
DE1966F0048683 DE1508645B1 (en) | 1965-03-18 | 1966-03-17 | MOLDING SAND MIX |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1156365A GB1123591A (en) | 1965-03-18 | 1965-03-18 | Sand moulding mixtures |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1123591A true GB1123591A (en) | 1968-08-14 |
Family
ID=9988541
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1156365A Expired GB1123591A (en) | 1965-03-18 | 1965-03-18 | Sand moulding mixtures |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1123591A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2225555A (en) * | 1988-12-01 | 1990-06-06 | Ofer Maor | Parking card or bus ticket |
CN106077428A (en) * | 2016-07-29 | 2016-11-09 | 无锡市三峰仪器设备有限公司 | A kind of resin sand of instrument casting |
-
1965
- 1965-03-18 GB GB1156365A patent/GB1123591A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2225555A (en) * | 1988-12-01 | 1990-06-06 | Ofer Maor | Parking card or bus ticket |
CN106077428A (en) * | 2016-07-29 | 2016-11-09 | 无锡市三峰仪器设备有限公司 | A kind of resin sand of instrument casting |
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