Method and mold for casting articles having a predetermined crystalline orientation
US4580613A · kind A · utility
26Cited by
10References
52Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 5, 1982 |
| Grant date | Apr 8, 1986 |
| Priority date | — |
| Expiry date | Aug 5, 2002 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D27/045
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A mold construction and method for use in producing articles having a predetermined crystalline orientation including single crystals. The technique employs a seed holder or cradle that is inserted into a bottom aperture of a ceramic mold to permit the precise orientation of one or more seeds relative to the article cavity and to provide improved solidification process control. The technique also facilitates pattern assembly and pattern removal operations during fabrication of the ceramic mold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.