Method for applying a coating by means of plasma spraying while simultaneously applying a continuous laser beam
US6197386A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 11, 1998 |
| Grant date | Mar 6, 2001 |
| Priority date | — |
| Expiry date | Sep 11, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K2103/50
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The invention relates to a method for applying a coating by means of plasma spraying to a substrate, in which method the beam of a laser is additionally used, it being possible to coat a very wide variety of substrates in order, in particular, to improve the properties on the substrate surface. Moreover, the method according to the invention is to achieve a high coating rate and, in addition to advantageous adhesion and density of the layer, also to influence in a controlled manner the layer structure which is being formed. The procedure is that at least one continuous laser beam is directed through the spray jet, with a predeterminable interaction time, directly onto the surface of the substrate or the surface of a layer which has already been applied thereto, so as to initiate the melting thereof
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.