JPS5459507A - Turbine nozzle - Google Patents
Turbine nozzleInfo
- Publication number
- JPS5459507A JPS5459507A JP12577677A JP12577677A JPS5459507A JP S5459507 A JPS5459507 A JP S5459507A JP 12577677 A JP12577677 A JP 12577677A JP 12577677 A JP12577677 A JP 12577677A JP S5459507 A JPS5459507 A JP S5459507A
- Authority
- JP
- Japan
- Prior art keywords
- boride
- nozzle plate
- prevent
- errosion
- hardness
- 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.)
- Granted
Links
Landscapes
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
PURPOSE: To prevent formation of errosion from solid particles coming from a nozzle by covering the rear end portion of a nozzle plate, which might otherwise be liable to form the errosion, with boride.
CONSTITUTION: The covering area of boride is sufficient to be at the vapor outlet end 5C of the vapor passage of a nozzle plate and at a portion extending from the front to the rear side of the nozzle plate. The portion left uncoated is masked, and the nozzle plate is dipped in a graphite crusible, which is filled with boride anhydride, so that it may be coated with the boride by the melting electlytic method. In this meanwhile, the quenching and annealing treatments are sinulataneously accomplished to restore the strength of a mother material. By the coating of boride, the solid particles colliding are sacttered to prevent the cutting actions and elastic deformation of the surface. Moreover, there is no gradient in hardness of the coating layer so that no diffusion of the coating layer takes place even after a long use, thereby to prevent reduction in hardness
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12577677A JPS5459507A (en) | 1977-10-21 | 1977-10-21 | Turbine nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12577677A JPS5459507A (en) | 1977-10-21 | 1977-10-21 | Turbine nozzle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5459507A true JPS5459507A (en) | 1979-05-14 |
| JPS616242B2 JPS616242B2 (en) | 1986-02-25 |
Family
ID=14918547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12577677A Granted JPS5459507A (en) | 1977-10-21 | 1977-10-21 | Turbine nozzle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5459507A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6229704A (en) * | 1985-07-29 | 1987-02-07 | ゼネラル・エレクトリツク・カンパニイ | Device and method for reducing solid particle corrosion of turbine |
| JPS6263102A (en) * | 1985-09-13 | 1987-03-19 | Toshiba Corp | Turbine nozzle |
| EP1803898A2 (en) * | 2002-01-28 | 2007-07-04 | Kabushiki Kaisha Toshiba | Geothermal turbine |
| JP2012504192A (en) * | 2008-09-29 | 2012-02-16 | ウイリアム・ディー．・ハースト | Alloy coating apparatus and metal riding method |
-
1977
- 1977-10-21 JP JP12577677A patent/JPS5459507A/en active Granted
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6229704A (en) * | 1985-07-29 | 1987-02-07 | ゼネラル・エレクトリツク・カンパニイ | Device and method for reducing solid particle corrosion of turbine |
| JPH0373722B2 (en) * | 1985-07-29 | 1991-11-22 | Gen Electric | |
| JPS6263102A (en) * | 1985-09-13 | 1987-03-19 | Toshiba Corp | Turbine nozzle |
| EP1803898A2 (en) * | 2002-01-28 | 2007-07-04 | Kabushiki Kaisha Toshiba | Geothermal turbine |
| EP1803898A3 (en) * | 2002-01-28 | 2012-01-04 | Kabushiki Kaisha Toshiba | Geothermal turbine |
| JP2012504192A (en) * | 2008-09-29 | 2012-02-16 | ウイリアム・ディー．・ハースト | Alloy coating apparatus and metal riding method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS616242B2 (en) | 1986-02-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS55158275A (en) | Corrosion preventing method for al and al alloy | |
| JPS5459507A (en) | Turbine nozzle | |
| JPS5450735A (en) | Noise wave preventive surface treatment for distributor | |
| JPS5754282A (en) | Surface treatment of heat resistant alloy | |
| JPS53123435A (en) | Method of treating metal surface | |
| JPS53141369A (en) | Treatment of article with thermosetting resin | |
| JPS55104471A (en) | Surface treating method for metal | |
| JPS53102351A (en) | Surface finishing of spray coating layer | |
| JPS53125236A (en) | Preparation of cast steel material possessed of wear resistance on surface layer | |
| JPS55134702A (en) | Steam turbine | |
| JPS55161545A (en) | Mold for lead storage battery grid | |
| JPS5770306A (en) | Over-fire air nozzle for front wall firing boiler | |
| JPS53142957A (en) | Coated roll | |
| JPS5256409A (en) | Water-heater container | |
| JPS5326762A (en) | Sprayer for reducing agent for nox | |
| JPS53142956A (en) | Coated roll | |
| JPS57210964A (en) | Hot dipping method using zn-al-sn alloy | |
| Zukas | Process for Ductilizing Tungsten and Tungsten Base Composites | |
| JPS5776214A (en) | Exhaust valve of diesel engine and manufacture therefor | |
| JPS53128015A (en) | Liquid-body distributing method | |
| JPS5621658A (en) | Spray nozzle and manufacture thereof | |
| JPS51134975A (en) | Filtering materials for molten metal | |
| JPS53107025A (en) | Method of pretreating padding position of automotive body | |
| JPS55131181A (en) | Preventive agent for infiltration of hydrogen to metal | |
| JPS5390527A (en) | Mounting construction of slow-jet element of carburetter |