Method of and apparatus for low-pressure casting
US5611388A · kind A · utility
3Cited by
0References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 31, 1994 |
| Grant date | Mar 18, 1997 |
| Priority date | — |
| Expiry date | Aug 31, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22C9/061
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A casting mold for a low-pressure casting apparatus can be opened and closed and is closed to form therein a cavity which is filled with molten metal to form a cast product. The casting mold includes an upper mold of metal, a lower mold of metal and a sand mold which is disposed between the upper and lower molds and forms a part of the cavity. A top wall of the cavity is formed by a lower surface of the upper mold, at least a part of a side wall of the cavity is formed by the sand mold so that the upper mold contacts with the molten metal filled in the cavity in a larger area than the lower mold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.