GB991347A - Improvements in or relating to the production of sand moulds, cores and like articles - Google Patents
Improvements in or relating to the production of sand moulds, cores and like articlesInfo
- Publication number
- GB991347A GB991347A GB1595863A GB1595863A GB991347A GB 991347 A GB991347 A GB 991347A GB 1595863 A GB1595863 A GB 1595863A GB 1595863 A GB1595863 A GB 1595863A GB 991347 A GB991347 A GB 991347A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sand
- accelerator
- resin
- cores
- april
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C23/00—Tools; Devices not mentioned before for moulding
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Mold Materials And Core Materials (AREA)
Abstract
991,347. Moulding processes. FOSECO TRADING CO. April 21, 1964 [April 23, 1963], No. 15958/63. Heading B3F. A method of producing sand cores, moulds &c. of bonded sand comprises preheating the sand, mixing therewith a resinous material, such as a urea or phenol formaldehyde, resin which will set on heating in the presence of an accelerator, and an accelerator such as hydrochloric or phosphoric acid or an aryl-sulphonic acid. The composition thus obtained is shaped by applying it to or into a cool pattern or core box and the resinous material is allowed to set in or on the pattern under the combined action of the accelerator and residual heat of the sand. The process described may be carried out continuously by the drying of wet sand by heating means, the hot sand being used without being allowed to cool down. At sand temperatures of between 50‹ to 150‹ C. it is preferable to mix the sand and resin and then add the accelerator at a later stage. At temperatures below 50‹ C. the resin and accelerator may be both mixed directly with the sand. An example of the process is given.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1595863A GB991347A (en) | 1963-04-23 | 1963-04-23 | Improvements in or relating to the production of sand moulds, cores and like articles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1595863A GB991347A (en) | 1963-04-23 | 1963-04-23 | Improvements in or relating to the production of sand moulds, cores and like articles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB991347A true GB991347A (en) | 1965-05-05 |
Family
ID=10068634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1595863A Expired GB991347A (en) | 1963-04-23 | 1963-04-23 | Improvements in or relating to the production of sand moulds, cores and like articles |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB991347A (en) |
-
1963
- 1963-04-23 GB GB1595863A patent/GB991347A/en not_active Expired
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