Method and apparatus for reclaiming foundry sand
US4620586A · kind A · utility
31Cited by
6References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 28, 1985 |
| Grant date | Nov 4, 1986 |
| Priority date | — |
| Expiry date | May 28, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22C5/08
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention relates to a method and apparatus to be used in the reclamation of foundry sand. Mold flasks containing foundry sand shaped by a pattern to form a cavity into which molten metal has been poured are, after the metal has set, subjected to greatly reduced atmospheric pressure whereby to cause the moisture in the foundry sand to evaporate into water vapor, thereby removing moisture and heat from the sand so that the particles can be reused free of lumps or clumping of sand.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.