Title:
The steam turbine which has a turbo machinery component which has a separation joined part, and the turbo machinery component concerned
Document Type and Number:
Japanese Patent JP5951801
Kind Code:
B2
Abstract:
The turbomachine component comprises two sub-components (4, 5) that are separated by a parting joint (3) and each comprise a sealing surface at the parting joint, where one of the two sealing surfaces: is convex to form a linear contact of the two sealing surfaces; and has a coating, applied on the sealing surfaces, which comprises a hard material having a thickness of maximum 30 mu m and is applied using a vapor deposition method, or a coating, which comprises a chrome-containing alloy having a thickness of maximum 30 mu m and is applied by a vapor deposition method. The turbomachine component comprises two sub-components (4, 5) that are separated by a parting joint (3) and each comprise a sealing surface at the parting joint, where one of the two sealing surfaces: is convex to form a linear contact of the two sealing surfaces; and has a coating, applied on the sealing surfaces, which comprises a hard material having a thickness of maximum 30 mu m and is applied using a vapor deposition method, or a coating, which comprises a chrome-containing alloy having a thickness of maximum 30 mu m and is applied by a vapor deposition method or having a thickness of maximum 300 mu m and applied using a thermal spraying method. The coating applied by the thermal spraying method comprises particles of an additional hard material (70-80 mass%). The particle is a ceramic particle. The thermal spraying method includes high-velocity flame spraying method, and cold spraying or detonation spraying method. The vapor deposition method includes physical vapor deposition method or chemical vapor deposition method. An independent claim is included for a steam turbine.
Inventors:
Jörg Surhoff
Application Number:
JP2014555098A
Publication Date:
July 13, 2016
Filing Date:
November 07, 2012
Export Citation:
Assignee:
Siemens Actien Gezelshaft
International Classes:
F01D25/24; C22C19/05; C22C29/06; C22C29/08; C22C29/10; C22C29/14; C22C29/16; C23C4/06; C23C4/10
Domestic Patent References:
| JP10089011A | ||||
| JP2005016324A | ||||
| JP2007514094A | ||||
| JP2004149915A | ||||
| JP2004027289A | ||||
| JP2004232499A | ||||
| JP2002047557A | ||||
| JP2012501386A | ||||
| JP57083609A | ||||
| JP2011085065A |
Foreign References:
| WO2006038328A1 |
Attorney, Agent or Firm:
Yasuhiko Murayama
Takashi Watanabe
Shinya Mitsuhiro
Takashi Watanabe
Shinya Mitsuhiro
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