GB899775A - Improvements in and relating to a method and a mixture for the production of castingmould elements and elements obtained thereby - Google Patents
Improvements in and relating to a method and a mixture for the production of castingmould elements and elements obtained therebyInfo
- Publication number
- GB899775A GB899775A GB2437660A GB2437660A GB899775A GB 899775 A GB899775 A GB 899775A GB 2437660 A GB2437660 A GB 2437660A GB 2437660 A GB2437660 A GB 2437660A GB 899775 A GB899775 A GB 899775A
- Authority
- GB
- United Kingdom
- Prior art keywords
- elements
- mixture
- castingmould
- relating
- production
- 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
- B22C1/162—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 use of a gaseous treating agent for hardening the binder
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Mold Materials And Core Materials (AREA)
Abstract
A composition of sand with 1,75 to 3,5% of its weight of a thermosetting resinous composition is used. This resinous material is a solution, in an aqueous milk of an alkaline earth base, of a novolak resin, and has the property that, on treatment with carbonic acid, CO2 or SO2, the resin is precipitated. This precipitation of resin binds the sand together, and the binding can be further strengthened by heating in a stove, 4-12% by weight of a curing agent, e.g. hexamethylenetetramine having been incorporated in the original mixture. Further fillers, &c., e.g. dextrin, chalk, may be added to the original mixture. Specification 899,776 is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR806384A FR1245706A (en) | 1959-09-30 | 1959-09-30 | Method and sand-based mixture for the production of elements for foundry molds and resulting elements |
Publications (1)
Publication Number | Publication Date |
---|---|
GB899775A true GB899775A (en) | 1962-06-27 |
Family
ID=8719669
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2437660A Expired GB899775A (en) | 1959-09-30 | 1960-07-13 | Improvements in and relating to a method and a mixture for the production of castingmould elements and elements obtained thereby |
Country Status (3)
Country | Link |
---|---|
BE (1) | BE587967A (en) |
FR (1) | FR1245706A (en) |
GB (1) | GB899775A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2945653A1 (en) * | 1978-11-13 | 1980-05-14 | Hitachi Chemical Co Ltd | METHOD FOR PRODUCING FOUNDRY CORE OR MOLD AND BINDING AGENT FOR THIS PURPOSE |
-
1959
- 1959-09-30 FR FR806384A patent/FR1245706A/en not_active Expired
-
1960
- 1960-02-24 BE BE587967A patent/BE587967A/en unknown
- 1960-07-13 GB GB2437660A patent/GB899775A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2945653A1 (en) * | 1978-11-13 | 1980-05-14 | Hitachi Chemical Co Ltd | METHOD FOR PRODUCING FOUNDRY CORE OR MOLD AND BINDING AGENT FOR THIS PURPOSE |
FR2441445A1 (en) * | 1978-11-13 | 1980-06-13 | Hitachi Chemical Co Ltd | PROCESS FOR MANUFACTURING CORES OR FOUNDRY MOLDS, AND BINDERS USED THEREFOR |
US4283319A (en) | 1978-11-13 | 1981-08-11 | Hitachi Chemical Company, Ltd. | Process for preparing foundry cores or molds and binder materials used therefor |
Also Published As
Publication number | Publication date |
---|---|
FR1245706A (en) | 1960-11-10 |
BE587967A (en) | 1960-06-16 |
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