| PATENT ASSIGNEE'S COUNTRY | Canada |
| UPDATE | 12.99 |
| PATENT ASSIGNEE | This data is not available for free |
| PATENT CLAIMS | Anodising the workpiece at a chosen a.c. voltage X (expressed in rms V) in an acidic electrolyte contg PO4H3 or SO4H2 capable of dissolving Al oxide & maintained at > 80C for high Mg alloys & > 85C for all other alloys under conditions such that the surface of the workpiece is cleaned with any oxide film thereon being non-porous & having a thickness (expressed in nm) wherein Y < 1/2X |
| PATENT PHOTOCOPY | Available on request |
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