Process for plating Al alloys containing Li, by hot co-rolling
US4717068A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 17, 1987 |
| Grant date | Jan 5, 1988 |
| Priority date | — |
| Expiry date | Feb 17, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22F1/04
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The invention is directed to a process for plating Al alloys containing lithium by hot co-rolling under the usual heating conditions, in the air. The process comprises effecting controlled oxidation of the core alloy by heating in the air at between 450.degree. C. and 550.degree. C. for a period of time such that the depth affected by the surface loss of Li is between 50 and 700 .mu.m. The core is then treated mechanically or chemically to remove the surface oxides with a loss of alloy less than 30 .mu.m. An assembly of the core and platings is then co-rolled with reheating to a temperature of less than 500.degree. C. for less than 24 hours. The result is perfect adhesion of the core to the surface platings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.