Investment shell molding materials and processes
US4316498A · kind A · utility
13Cited by
3References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 18, 1980 |
| Grant date | Feb 23, 1982 |
| Priority date | — |
| Expiry date | Jan 18, 2000 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22C1/00
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A ceramic shell mold having the properties of being easily removed from the metal castings, high permeability, and a fired strength that can be controlled at levels lower than conventional molds, characterized in that the refractory used to make the mold is at least in part hydrated alumina.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.