GB798915A - Compositions containing sand and phenolic resins for foundry moulds and cores - Google Patents
Compositions containing sand and phenolic resins for foundry moulds and coresInfo
- Publication number
- GB798915A GB798915A GB2068556A GB2068556A GB798915A GB 798915 A GB798915 A GB 798915A GB 2068556 A GB2068556 A GB 2068556A GB 2068556 A GB2068556 A GB 2068556A GB 798915 A GB798915 A GB 798915A
- Authority
- GB
- United Kingdom
- Prior art keywords
- resin
- sand
- phenol
- boric
- boric acid
- 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
- B22C1/22—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 resins or rosins
- B22C1/2233—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 resins or rosins obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- B22C1/2246—Condensation polymers of aldehydes and ketones
- B22C1/2253—Condensation polymers of aldehydes and ketones with phenols
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Mold Materials And Core Materials (AREA)
Abstract
Shell moulding and core compositions comprise 100 parts (by weight) of sand, 2-10 parts of a two-stage phenol-formaldehyde resin, and 0.5-10 per cent by weight of the resin of a boric resin. The resin and boric acid may be mixed and then added to the sand, or the sand may be coated with the resin and the boric acid added subsequently. Specified sands are Redhill grade H, fine Chelford or pure silica sands, or zircon sand, preferably of 100-150 B.S. mesh. Specified resins are derived from phenol, cresol, xylenol or phenol-cresol mixtures. Preferred boric acid is ortho-boric. Lubricants and wetting agents may also be added.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2068556A GB798915A (en) | 1956-07-04 | 1956-07-04 | Compositions containing sand and phenolic resins for foundry moulds and cores |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2068556A GB798915A (en) | 1956-07-04 | 1956-07-04 | Compositions containing sand and phenolic resins for foundry moulds and cores |
Publications (1)
Publication Number | Publication Date |
---|---|
GB798915A true GB798915A (en) | 1958-07-30 |
Family
ID=10149967
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2068556A Expired GB798915A (en) | 1956-07-04 | 1956-07-04 | Compositions containing sand and phenolic resins for foundry moulds and cores |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB798915A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3510446A (en) * | 1965-01-19 | 1970-05-05 | Dynamit Nobel Ag | Fire-preventive structural matrix and process of making the same |
US3535252A (en) * | 1964-09-29 | 1970-10-20 | Bakelite Xylonite Ltd | Adhesive composition |
EP0156043A2 (en) * | 1984-03-30 | 1985-10-02 | Rütgerswerke Aktiengesellschaft | Curable moulding compositions and their use |
-
1956
- 1956-07-04 GB GB2068556A patent/GB798915A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3535252A (en) * | 1964-09-29 | 1970-10-20 | Bakelite Xylonite Ltd | Adhesive composition |
US3510446A (en) * | 1965-01-19 | 1970-05-05 | Dynamit Nobel Ag | Fire-preventive structural matrix and process of making the same |
EP0156043A2 (en) * | 1984-03-30 | 1985-10-02 | Rütgerswerke Aktiengesellschaft | Curable moulding compositions and their use |
EP0156043A3 (en) * | 1984-03-30 | 1986-03-19 | Rütgerswerke Aktiengesellschaft | Curable moulding compositions and their use |
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