发明名称 |
SURFACE TREATMENT OF A METAL PART |
摘要 |
A process for the surface treatment of a metal part comprises: exposing a surface (1) of the metal part to a stream of substantially spherical particles, so that any portion of said surface receives said particles along several primary incidences, the primary incidences of the particles on a portion of the surface being essentially distributed in a cone or a conical film which has an outer half apex angle between 10° and 45°, until a surface layer (3) of nanostructures having an average thickness of several tens of microns is obtained, the particles having a diameter of less than 2 mm and greater than 0.1 mm and being projected at a speed between 40 m/s and 100 m/s. A thermochemical treatment is then applied, in particular a low-temperature treatment of the nitriding type or a high-temperature treatment of the low-pressure carbonitriding type. |
申请公布号 |
EP2721190(B1) |
申请公布日期 |
2016.02.24 |
申请号 |
EP20120731580 |
申请日期 |
2012.06.18 |
申请人 |
WINOA |
发明人 |
PREZEAU, TONY;MULLER, TEDDY;BARON, MICHEL;SAMUEL, JOAN;DRANSART, EMMANUEL |
分类号 |
C23C8/02;B82Y30/00;B82Y40/00;C21D7/06;C23C8/32;C23C8/38 |
主分类号 |
C23C8/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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