JPS55134702A - Steam turbine - Google Patents
Steam turbineInfo
- Publication number
- JPS55134702A JPS55134702A JP4092779A JP4092779A JPS55134702A JP S55134702 A JPS55134702 A JP S55134702A JP 4092779 A JP4092779 A JP 4092779A JP 4092779 A JP4092779 A JP 4092779A JP S55134702 A JPS55134702 A JP S55134702A
- Authority
- JP
- Japan
- Prior art keywords
- blades
- steam turbine
- recess
- steam
- tip portion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
PURPOSE: To improve oxidation-resisting performance of the blades of steam turbine and to protect the blades against erosion that is possibly caused by collision of water drops contained in wet steam, by coating a layer of cemented carbide having a Rockwell hardness higher than 68 at the tip portion of baldes located at the final stage.
CONSTITUTION: By means of injector 15, sandblast is blown onto the tip portion of the steam inlet side of blades 2 located at the final stage of steam turbine, so that a recess having a depth of about 0.1mm is formed in the surface of blades 2. Then, cemented carbinde is coated to the recess by means of sprayer 17 to form a coating surface 18 of cemented carbide having a Rockwell hardness higher than 68. Thus, erosion-resisting and oxidation-resisting performance of the blades can be improved.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4092779A JPS55134702A (en) | 1979-04-06 | 1979-04-06 | Steam turbine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4092779A JPS55134702A (en) | 1979-04-06 | 1979-04-06 | Steam turbine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55134702A true JPS55134702A (en) | 1980-10-20 |
Family
ID=12594128
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4092779A Pending JPS55134702A (en) | 1979-04-06 | 1979-04-06 | Steam turbine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55134702A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002018674A2 (en) * | 2000-08-31 | 2002-03-07 | Siemens Westinghouse Power Corporation | Thermal barrier coating system for turbine components |
US6623241B2 (en) * | 2000-11-14 | 2003-09-23 | Alstom (Switzerland) Ltd | Low-pressure steam turbine |
US20100329884A1 (en) * | 2009-06-25 | 2010-12-30 | Hitachi, Ltd. | Turbine rotor blade |
-
1979
- 1979-04-06 JP JP4092779A patent/JPS55134702A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002018674A2 (en) * | 2000-08-31 | 2002-03-07 | Siemens Westinghouse Power Corporation | Thermal barrier coating system for turbine components |
WO2002018674A3 (en) * | 2000-08-31 | 2002-08-29 | Siemens Westinghouse Power | Thermal barrier coating system for turbine components |
US6623241B2 (en) * | 2000-11-14 | 2003-09-23 | Alstom (Switzerland) Ltd | Low-pressure steam turbine |
US20100329884A1 (en) * | 2009-06-25 | 2010-12-30 | Hitachi, Ltd. | Turbine rotor blade |
US8632313B2 (en) * | 2009-06-25 | 2014-01-21 | Hitachi, Ltd. | Turbine rotor blade |
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