Method of and apparatus for casting articles with predetermined crystalline orientation
US4612969A · kind A · utility
9Cited by
4References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 27, 1983 |
| Grant date | Sep 23, 1986 |
| Priority date | — |
| Expiry date | Apr 27, 2003 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D27/045
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method and ceramic mold structure for use in producing articles having a predetermined crystalline orientation such as single crystals. The technique involves the use of a ceramic mold mounted on a chill plate with the mold defining a cavity tilted at an angle between about 5.degree. and 75.degree. relative to the vertical. One or more seed crystals are supported adjacent the chill plate and the orientation of the crystal is selected to provide a desired orientation in the resulting casting. The method results in improved solidification control, particularly with reference to avoiding defects caused by shrinkage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.