CN103233216A - Process method for plasma spray coating of ceramic coating on hydraulic turbine sealed rotation bracket - Google Patents
Process method for plasma spray coating of ceramic coating on hydraulic turbine sealed rotation bracket Download PDFInfo
- Publication number
- CN103233216A CN103233216A CN2013101326742A CN201310132674A CN103233216A CN 103233216 A CN103233216 A CN 103233216A CN 2013101326742 A CN2013101326742 A CN 2013101326742A CN 201310132674 A CN201310132674 A CN 201310132674A CN 103233216 A CN103233216 A CN 103233216A
- Authority
- CN
- China
- Prior art keywords
- sprayed
- workpiece
- spray coating
- welding
- plasma spray
- 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
Landscapes
- Coating By Spraying Or Casting (AREA)
Abstract
The present invention discloses a process method for plasma spray coating of a ceramic coating on a hydraulic turbine sealed rotation bracket. The process method comprises: carrying out workpiece integrating, adopting a vertical lathe to process a surface to be sprayed to form a concave groove, adopting argon arc welding to carry out surfacing welding of a stainless steel material on seam combination positions on both sides of every petal of the workpiece, integrating the edge sealed-workpiece, adopting the vertical lathe to carry out shape correction, carrying out whole body sandblasting on the surface requiring spray coating so as to achieve a surface cleanliness of Sa 2.5 level, carrying out plasma spray coating of Ni-Al composite powder on the sprayed surface, carrying out plasma spray coating of Cr2O3 powder on the sprayed surface, and adopting a diamond grinding wheel to grind the sprayed surface. With the present invention, wear resistance and corrosion resistance of the sealed surface of the hydraulic turbine sealed rotation bracket can be improved so as to prolong a workpiece service life and reduce maintenance cost.
Description
Technical field
The present invention relates to a kind of water turbine sealed rotational support plasma spraying ceramic coat processing method.
Background technology
Water turbine sealed rotational support integral body was by the plain carbon stool manufacturing in the past, and at its sealing face built-up welding stainless material, the sealing face of Huo Deing has the shortcoming that surface hardness is low, surface irregularity is high like this.Because the sealing face working conditions is abominable, the pressure that withstands shocks is big, thereby the surface abrasion corrosion is serious, easily causes the inefficacy of leaking, and causes that the workpiece life cycle is short, maintenance cost is high.
Summary of the invention
The present invention is a kind of water turbine sealed rotational support plasma spraying ceramic coat processing method, and this method can improve antiwear property and the rust protection ability of water turbine sealed rotational support sealing face, and then prolongs the workpiece life cycle, reduces maintenance cost.Technical scheme of the present invention is: (1) surface working to be sprayed: with the workpiece zoarium, vertical lathe is processed surface to be sprayed, makes it form groove; (2) argon arc-welding built-up welding edge sealing: use argon arc welding at the both sides of every lobe workpiece commissure built-up welding stainless material; (3) workpiece school shape: with the workpiece zoarium behind the edge sealing, vertical lathe school shape; (4) surface sand-blasting to be sprayed: the whole sandblast in surface to be sprayed makes surface cleanliness reach the Sa2.5 level; (5) plasma spraying transition layer: to sprayed surface plasma spraying Ni/Al composite powder; (6) plasma sprayed ceramic layer: to sprayed surface plasma spraying Cr
2O
3Powder; (7) ground: adopt the diamond wheel grinding sprayed surface.
The present invention adopts plasma spray coating process at water turbine sealed rotational support sealing face spraying ceramic coat.The workpiece that adopts the present invention to handle, its sealing face hardness can reach 900～1100HV, and surfaceness only is 0.1 μ m, and workpiece can reach more than 2 years work-ing life.And the sealing face of built-up welding stainless material on plain carbon stool in the past is example with Q235 surface overlaying H00Cr18Ni14Mo2, and its surface hardness is 180～210HV, and surfaceness is 0.8 μ m, and workpiece work-ing life is 150 days.The present invention can improve the surface hardness on Work piece sealing surface, reduces surfaceness, reduces frictional coefficient, and then improves antiwear property and the rust protection ability of sealing face, has prolonged the work-ing life of workpiece, has reduced maintenance cost.
Embodiment
Embodiment 1: a kind of water turbine sealed rotational support plasma spraying ceramic coat processing method is carried out according to the following steps: one, will be divided into the workpiece zoarium of 4 lobes, vertical lathe is processed surface to be sprayed, makes it form the dark groove of 0.8mm; Two, adopt argon arc welding at the both sides of every lobe workpiece commissure built-up welding thickness 1mm, the stainless material of width 4mm; Three, with 4 lobe workpiece zoariums behind the edge sealing, last vertical lathe school shape; Four, the whole sandblast in surface to be sprayed to surface cleanliness reaches the Sa2.5 level; Five, the Ni/Al composite powder of plasma spraying thickness 0.08～0.12mm; Six, the Cr of plasma spraying thickness 0.3～0.5mm
2O
3Powder; Seven, adopt the diamond wheel grinding sprayed surface, to satisfy the drawing dimensional requirement.Handle through this processing method, water turbine sealed rotational support sealing face hardness reaches 900～1100HV, and surfaceness is 0.1 μ m, and workpiece reaches more than 2 years work-ing life.
Claims (1)
1. water turbine sealed rotational support plasma spraying ceramic coat processing method, it is characterized in that: (1) surface working to be sprayed: with the workpiece zoarium, vertical lathe is processed surface to be sprayed, makes it form groove; (2) argon arc-welding built-up welding edge sealing: use argon arc welding at the both sides of every lobe workpiece commissure built-up welding stainless material; (3) workpiece school shape: with the workpiece zoarium behind the edge sealing, vertical lathe school shape; (4) surface sand-blasting to be sprayed: the whole sandblast in surface to be sprayed makes surface cleanliness reach the Sa2.5 level; (5) plasma spraying transition layer: to sprayed surface plasma spraying Ni/Al composite powder; (6) plasma sprayed ceramic layer: to sprayed surface plasma spraying Cr
2O
3Powder; (7) ground: adopt the diamond wheel grinding sprayed surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101326742A CN103233216A (en) | 2013-04-17 | 2013-04-17 | Process method for plasma spray coating of ceramic coating on hydraulic turbine sealed rotation bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101326742A CN103233216A (en) | 2013-04-17 | 2013-04-17 | Process method for plasma spray coating of ceramic coating on hydraulic turbine sealed rotation bracket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103233216A true CN103233216A (en) | 2013-08-07 |
Family
ID=48881280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101326742A Pending CN103233216A (en) | 2013-04-17 | 2013-04-17 | Process method for plasma spray coating of ceramic coating on hydraulic turbine sealed rotation bracket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103233216A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9605562B2 (en) | 2015-02-09 | 2017-03-28 | United Techologies Corporation | Turbomachine accessory gearbox alignment pin |
| CN106676458A (en) * | 2017-01-23 | 2017-05-17 | 四川中物红宇科技有限公司 | Coating of hydraulic energy machine blade and hydraulic energy machine blade |
| CN107299310A (en) * | 2017-02-28 | 2017-10-27 | 扬州大学 | A kind of preparation method for strengthening water pump vane Ceramic Coating Prepared By Plasma Spraying On The Surface |
| US10054008B2 (en) | 2015-02-09 | 2018-08-21 | United Technologies Corporation | Turbomachine accessory gearbox bracket |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1451936A (en) * | 2003-03-19 | 2003-10-29 | 湖南百富瑞材料有限责任公司 | Method for surface strengthening tuyere and slag hole for metallurgical furnace |
-
2013
- 2013-04-17 CN CN2013101326742A patent/CN103233216A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1451936A (en) * | 2003-03-19 | 2003-10-29 | 湖南百富瑞材料有限责任公司 | Method for surface strengthening tuyere and slag hole for metallurgical furnace |
Non-Patent Citations (3)
| Title |
|---|
| 中国鸣网: "金属陶瓷涂层在水轮机密封转动支架上的应用", 《中国鸣网》 * |
| 徐林，等: "等离子喷涂Cr2O3陶瓷涂层的大型牵引辊", 《材料保护》 * |
| 王振凯: "等离子喷涂陶瓷涂层的耐腐蚀与抗污性能研究", 《防爆电机》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9605562B2 (en) | 2015-02-09 | 2017-03-28 | United Techologies Corporation | Turbomachine accessory gearbox alignment pin |
| US10054008B2 (en) | 2015-02-09 | 2018-08-21 | United Technologies Corporation | Turbomachine accessory gearbox bracket |
| CN106676458A (en) * | 2017-01-23 | 2017-05-17 | 四川中物红宇科技有限公司 | Coating of hydraulic energy machine blade and hydraulic energy machine blade |
| CN107299310A (en) * | 2017-02-28 | 2017-10-27 | 扬州大学 | A kind of preparation method for strengthening water pump vane Ceramic Coating Prepared By Plasma Spraying On The Surface |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103233216A (en) | Process method for plasma spray coating of ceramic coating on hydraulic turbine sealed rotation bracket | |
| CN104191152B (en) | A kind of hydraulic cylinder piston rod or the repairing reproduction method of middle rank cylinder outer surface | |
| CN104213067A (en) | Method for coating high-temperature corrosion and wear resistant coating layer on surface of steel material | |
| CN102091906A (en) | Method for repairing central slot of scraper conveyor | |
| CN102639298A (en) | Rotary grinding tool and method of manufacturing same | |
| CN104152837A (en) | Concrete pump truck conveying pipe and spraying device and preparation method thereof | |
| CN104384861A (en) | Method for manufacturing abrasion-proof conveying roll with high-temperature erosion resistance | |
| CN106756727A (en) | A kind of robot automation's spraying coating process of grinding roller wear-resistant coating | |
| CN105290719A (en) | Method for machining hydraulic piston rod for forklift | |
| CN106378511B (en) | A kind of bead-welding technology of abrasive roller | |
| CN100365155C (en) | Method for preparing erosion-wear-resisting composite coating | |
| CN102212776A (en) | Method for spraying wolfram carbide alloy on seal surface of valve plate (seat) at supersonic speed | |
| CN105525251A (en) | Supersonic spraying process for sintering main shaft fan blade | |
| CN102191446B (en) | Technology or raising bonding strength of matrix and ceramic coating | |
| CN217651319U (en) | Composite wear-resistant and corrosion-resistant coating structure applied to fan blade | |
| CN112524116A (en) | Hydraulic piston rod, surface composite functional coating thereof and preparation method | |
| CN105803378A (en) | Electric arc sprayed ferrous alloyed low temperature-resistant wear-resistant coating and preparation method thereof | |
| CN201344296Y (en) | Metal hard seal valve | |
| CN101775569B (en) | Spraying process of distributor of blast furnace granulated slag | |
| CN203995023U (en) | A kind of light durable type print roller | |
| RU2008103868A (en) | METHOD OF REPAIR OF HYDRAULIC DISTRIBUTORS | |
| CN203821218U (en) | Milling machine tool bit and milling machine applying same | |
| CN102225530A (en) | New process for reproduction of main control valve | |
| CN106925862B (en) | Performing CO treatment on a hydraulic support upright column piston rod2Arc surfacing repair method | |
| CN102828141A (en) | Method for spraying tungsten carbide alloy on valve plate sealing surface at supersonic speed |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130807 |