Direct chill casting of aluminum-lithium alloys
US4610295A · kind A · utility
24Cited by
10References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 10, 1983 |
| Grant date | Sep 9, 1986 |
| Priority date | — |
| Expiry date | Nov 10, 2003 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D11/1245
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method for continuously casting lithium-containing alloys by a direct chill process includes cooling the alloy to form a continuous ingot having a solid shell and further cooling the ingot by direct chill with an organic coolant. The organic coolant in one aspect includes a modified hydrocarbon fluid, e.g., ethylene glycol, having less than a predetermined moisture content. The method includes recirculating coolant while controlling moisture content. An ingot formed by the disclosed method provides small dendrite arm spacing in a relatively large size ingot.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.