Method of simultaneous cleaning and fluxing of aluminum cylinder block bore surfaces for thermal spray coating adhesion
US6187388A · kind A · utility
3Cited by
3References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 6, 1998 |
| Grant date | Feb 13, 2001 |
| Priority date | — |
| Expiry date | Aug 6, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23C4/02
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method of bonding a thermally sprayed coating to a non-roughened light metal surface. The method comprises the steps of (a) depositing a coating surface (i.e. a double potassium aluminum fluoride salt) onto such surface which has been cleaned to be substantially free of grease and oils. The aqueous deposition provides a protective coating layer to inhibit oxide growth; and (b) subsequently thermally spraying metallic droplets or particles onto the protective coating surface to form a metallic coating that is metallurgically bonded to the cast surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.