GB535224A - The manufacture of foundry moulds and cores - Google Patents
The manufacture of foundry moulds and coresInfo
- Publication number
- GB535224A GB535224A GB27891/39A GB2789139A GB535224A GB 535224 A GB535224 A GB 535224A GB 27891/39 A GB27891/39 A GB 27891/39A GB 2789139 A GB2789139 A GB 2789139A GB 535224 A GB535224 A GB 535224A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cores
- cement
- zirconium
- class
- parts
- 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
- B22C1/165—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 in the manufacture of multilayered shell moulds
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Ceramic Products (AREA)
Abstract
535,224. Mould materials. SOC. D'ELECTROCHIMIE D'ELECTRO-METALLURGIE ET DES ACIERIES ELECTRIQUES D'UGINE. Oct. 13, 1939, No. 27891. Convention date, Nov. 5, 1938. [Class 83 (i)] To prevent local fusion of foundry moulds and cores, particularly as described in Specifications 319,777, [Class 83 (i)], 351,592, and 356,245; they are faced, wholly or in part, with a material comprising mainly an oxygenated compound of zirconium bound with subhydrated Portland or alumina cement. A mixture of 100 parts by weight of zirconium oxide or silicate, 13 parts of Portland cement and enough water to make it mouldable is tamped about the pattern to form a layer of inch to over 2 inches thick and then sand and cement mixture, green or dry sand, cinders, or the like, is applied. The Specification states that other basic oxides, such as magnesia, and most refractory materials are worthless to replace the zirconium compounds.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US535224XA | 1938-11-05 | 1938-11-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB535224A true GB535224A (en) | 1941-04-02 |
Family
ID=21984853
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB27891/39A Expired GB535224A (en) | 1938-11-05 | 1939-10-13 | The manufacture of foundry moulds and cores |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB535224A (en) |
-
1939
- 1939-10-13 GB GB27891/39A patent/GB535224A/en not_active Expired
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