CN106480395A - A kind of turbine blade anticorrosion abrasionproof etching method - Google Patents
A kind of turbine blade anticorrosion abrasionproof etching method Download PDFInfo
- Publication number
- CN106480395A CN106480395A CN201611027918.0A CN201611027918A CN106480395A CN 106480395 A CN106480395 A CN 106480395A CN 201611027918 A CN201611027918 A CN 201611027918A CN 106480395 A CN106480395 A CN 106480395A
- Authority
- CN
- China
- Prior art keywords
- blade surface
- flow
- pressure
- nicrmosib
- etching method
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/06—Metallic material
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
- C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
- C22C19/051—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W
- C22C19/056—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W with the maximum Cr content being at least 10% but less than 20%
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The invention discloses a kind of turbine blade anticorrosion abrasionproof etching method, which includes：(1) sandblasting roughening is carried out in blade surface；(2) with acetone and ethanol purge roughening blade surface and dry；(3) 20 45wt%, Si are accounted for according to hard TiN ceramic particle3N4Nano particle accounts for the proportioning of 5 15wt%, NiCrMoSiB powder metallurgy surpluses, makes slurry, by the slurry uniform application in blade surface, dries at 90 130 DEG C；(4) it is fuel to adopt propane gas, and high pressure oxygen is combustion-supporting gas, and nitrogen is powder feeding gas, HVAF is carried out to blade surface, during spraying, propane pressure is 0.55 0.7MPa, and flow is 20 30L/min, oxygen pressure is 0.65 0.7MPa, flow is 180 200L/min, and nitrogen pressure is 0.85 1MPa, and flow is 18 30L/min, coating thickness is 700 μm of 2mm, obtains cladding in the TiN Si of blade surface3N4NiCrMoSiB wear-resistant coating.Through trying out 1 month in waste stream, significantly abrasion and evidence of corrosion is not found.
Description
Technical field
The present invention relates to field of material technology, more particularly to a kind of turbine blade anticorrosion abrasionproof etching method.
Background technology
Abrasion wear phenomena all generally existing in many industries such as water conservancy, water power, machinery, weaving and metallurgy, and non-
Chang Yanchong, the economic loss for thereby resulting in can quite show.China is very huge in the spending of this aspect, especially water conservancy, water power
Department more projects.This is because China's silt content of river is big, complete excessively annual fortune river of the sedimentary loading more than 10,000,000 tons reaches 115
Bar, according to first place in the world.Calendar year 2001, relevant statistics showed Ml, and national power station total installation of generating capacity is 80.05GW, gross generation
The big areas of silt content of river such as northwest, southwest and North China are located at for 2184.5 hundred million kW/h, wherein 105,600,000,000 kW h, these areas
Component of Hydraulic Turbines not only washed away by high-velocity flow, denuded and the acting on of mechanical force, but also by being mingled with current
The abrasion of the media such as silt, ablation destruction, therefore the consume of material is very serious.In addition, in the power station of Central-South, East China,
Although Component of Hydraulic Turbines is received because silt content of river is few, and sand erosion loss is little, the cavitation of current is to water at deep water
The destruction of engine blade wheel material is then quite serious.Data shows according to the relevent statistics, and a large-scale power station is used for changing, repairing every year
The expense of water conservancy machinery reaches more than million yuan, therefore, solves hydraulic abrasion, erosion problem, very necessary.
A kind of most economical, most efficient method is exactly the high anti-corrosion painting of coating high abrasion on the blade and arbor of the hydraulic turbine
Layer, and wear resistant corrosion resistant metal coating is favored by people deeply as its coating processes is simple, economic and effect is obvious.
Content of the invention
It is an object of the invention to proposing a kind of turbine blade anticorrosion abrasionproof etching method, resist can turbine blade
Abrasion is simultaneously anticorrosive.
For reaching this purpose, the present invention is employed the following technical solutions：
A kind of turbine blade anticorrosion abrasionproof etching method, which includes：
(1) sandblasting roughening is carried out in blade surface；
(2) with acetone and ethanol purge roughening blade surface and dry；
(3) 20-45wt%, Si are accounted for according to hard TiN ceramic particle3N4Nano particle accounts for 5-15wt%, NiCrMoSiB powder
The proportioning of last alloy surplus, makes slurry, by the slurry uniform application in blade surface, dries at 90-130 DEG C；
(4) it is fuel to adopt propane gas, and high pressure oxygen is combustion-supporting gas, and nitrogen is powder feeding gas, and blade surface is carried out
HVAF, during spraying, propane pressure is 0.55-0.7MPa, and flow is 20-30L/min, and oxygen pressure is 0.65-
0.7MPa, flow are 180-200L/min, and nitrogen pressure is 0.85-1MPa, and flow is 18-30L/min, and coating thickness is 700 μ
M-2mm, obtains cladding in the TiN-Si of blade surface3N4- NiCrMoSiB wear-resistant coating.
NiCrMoSiB powder metallurgy of the present invention, its composition percentage composition by weight include Cr 10-15%, Ni
3-7%, Mo 2-6%, Si 1-5%, B 2-4%, surplus Ni.
Preferably, TiN ceramic particle accounts for 30-40wt%, further preferred 35wt%.
The wear-resistant coating that the present invention is prepared, goes to form metallurgical binding with matrix, and bond strength is more than 600MPa, coating
For even tissue, the as cast condition crystalline structure of dense non-porous, its coating hardness is up to more than 80 Rockwell hardness, service life compared to
Blade without coating extends more than 6-7 times, and anti-cavitation ability improves more than 10 times.
The TiN-Si that the present invention is prepared3N4- NiCrMoSiB wear-resistant coating, it possess the advantage of ceramic coating, not only
Anti scuffing, also anticorrosive.Through trying out 1 month in waste stream, significantly abrasion and evidence of corrosion is not found.
Specific embodiment
Technical scheme is further illustrated below by specific embodiment.
Embodiment 1
A kind of turbine blade anticorrosion abrasionproof etching method, which includes：
(1) sandblasting roughening is carried out in blade surface；
(2) with acetone and ethanol purge roughening blade surface and dry；
(3) 20wt%, Si are accounted for according to hard TiN ceramic particle3N4Nano particle accounts for 5wt%, NiCrMoSiB powder metallurgy
The proportioning of surplus, makes slurry, by the slurry uniform application in blade surface, dries at 90 DEG C；
(4) it is fuel to adopt propane gas, and high pressure oxygen is combustion-supporting gas, and nitrogen is powder feeding gas, and blade surface is carried out
HVAF, during spraying, propane pressure is 0.55MPa, and flow is 20L/min, and oxygen pressure is 0.65MPa, flow
For 180L/min, nitrogen pressure is 0.85MPa, and flow is 18L/min, and coating thickness is 700 μm, obtains cladding in blade surface
TiN-Si3N4- NiCrMoSiB wear-resistant coating.
Embodiment 2
A kind of turbine blade anticorrosion abrasionproof etching method, which includes：
(1) sandblasting roughening is carried out in blade surface；
(2) with acetone and ethanol purge roughening blade surface and dry；
(3) 45wt%, Si are accounted for according to hard TiN ceramic particle3N4Nano particle accounts for 15wt%, NiCrMoSiB powder metallurgy
The proportioning of surplus, makes slurry, by the slurry uniform application in blade surface, dries at 130 DEG C；
(4) it is fuel to adopt propane gas, and high pressure oxygen is combustion-supporting gas, and nitrogen is powder feeding gas, and blade surface is carried out
HVAF, during spraying, propane pressure is 0.7MPa, and flow is 30L/min, and oxygen pressure is 0.7MPa, and flow is
200L/min, nitrogen pressure are 1MPa, and flow is 30L/min, and coating thickness is 2mm, obtains cladding in the TiN- of blade surface
Si3N4- NiCrMoSiB wear-resistant coating.
Embodiment 3
A kind of turbine blade anticorrosion abrasionproof etching method, which includes：
(1) sandblasting roughening is carried out in blade surface；
(2) with acetone and ethanol purge roughening blade surface and dry；
(3) 35wt%, Si are accounted for according to hard TiN ceramic particle3N4Nano particle accounts for 10wt%, NiCrMoSiB powder metallurgy
The proportioning of surplus, makes slurry, by the slurry uniform application in blade surface, dries at 100 DEG C；
(4) it is fuel to adopt propane gas, and high pressure oxygen is combustion-supporting gas, and nitrogen is powder feeding gas, and blade surface is carried out
HVAF, during spraying, propane pressure is 0.6MPa, and flow is 25L/min, and oxygen pressure is 0.67MPa, and flow is
190L/min, nitrogen pressure are 0.95MPa, and flow is 25L/min, and coating thickness is 1mm, obtains cladding in blade surface
TiN-Si3N4- NiCrMoSiB wear-resistant coating.
The turbine blade that embodiment 1-3 is prepared, through trying out 1 month in waste stream, does not find significantly mill
Erosion and evidence of corrosion.
Claims (3)
1. a kind of turbine blade anticorrosion abrasionproof etching method, which includes：
(1) sandblasting roughening is carried out in blade surface；
(2) with acetone and ethanol purge roughening blade surface and dry；
(3) 20-45wt%, Si are accounted for according to hard TiN ceramic particle3N4Nano particle accounts for the conjunction of 5-15wt%, NiCrMoSiB powder
The proportioning of golden surplus, makes slurry, by the slurry uniform application in blade surface, dries at 90-130 DEG C；
(4) it is fuel to adopt propane gas, and high pressure oxygen is combustion-supporting gas, and nitrogen is powder feeding gas, carries out Supersonic to blade surface
Fast flame-spraying, during spraying, propane pressure is 0.55-0.7MPa, and flow is 20-30L/min, and oxygen pressure is 0.65-
0.7MPa, flow are 180-200L/min, and nitrogen pressure is 0.85-1MPa, and flow is 18-30L/min, and coating thickness is 700 μ
M-2mm, obtains cladding in the TiN-Si of blade surface3N4- NiCrMoSiB wear-resistant coating.
2. turbine blade anticorrosion abrasionproof etching method as claimed in claim 1, it is characterised in that described NiCrMoSiB
Powder metallurgy, its composition percentage composition by weight include Cr 10-15%, Ni 3-7%, Mo 2-6%, Si 1-5%, B 2-
4%, surplus Ni.
3. turbine blade anticorrosion abrasionproof etching method as claimed in claim 1 or 2, it is characterised in that TiN ceramic particle is accounted for
30-40wt%, further preferred 35wt%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611027918.0A CN106480395A (en) | 2016-11-18 | 2016-11-18 | A kind of turbine blade anticorrosion abrasionproof etching method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611027918.0A CN106480395A (en) | 2016-11-18 | 2016-11-18 | A kind of turbine blade anticorrosion abrasionproof etching method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106480395A true CN106480395A (en) | 2017-03-08 |
Family
ID=58273973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611027918.0A Pending CN106480395A (en) | 2016-11-18 | 2016-11-18 | A kind of turbine blade anticorrosion abrasionproof etching method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106480395A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102925847A (en) * | 2012-11-06 | 2013-02-13 | 华北水利水电学院 | Method for preparing submicron abrasion and corrosion resisting coating of flow passage component of water turbine |
| CN103510035A (en) * | 2012-06-15 | 2014-01-15 | 西安宇丰喷涂技术有限公司 | Anti-scuffing treatment method for surface of water turbine |
| CN104862571A (en) * | 2015-06-16 | 2015-08-26 | 武汉理工大学 | Multi-scale nanostructured WC-CoCr metal ceramic composite powder |
-
2016
- 2016-11-18 CN CN201611027918.0A patent/CN106480395A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103510035A (en) * | 2012-06-15 | 2014-01-15 | 西安宇丰喷涂技术有限公司 | Anti-scuffing treatment method for surface of water turbine |
| CN102925847A (en) * | 2012-11-06 | 2013-02-13 | 华北水利水电学院 | Method for preparing submicron abrasion and corrosion resisting coating of flow passage component of water turbine |
| CN104862571A (en) * | 2015-06-16 | 2015-08-26 | 武汉理工大学 | Multi-scale nanostructured WC-CoCr metal ceramic composite powder |
Non-Patent Citations (1)
| Title |
|---|
| 徐润生等: "《NiCrBSi/WC涂层及涂层开裂处抗蚀行为研究》", 《中国表面工程》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Ludwig et al. | WC10Co4Cr coatings deposited by HVOF on martensitic stainless steel for use in hydraulic turbines: Resistance to corrosion and slurry erosion | |
| CN105648296B (en) | A kind of high temperature resistance tungsten carbide-base metal-ceramic composite powder end, coating and its preparation process containing Re | |
| CN103805992B (en) | A kind of method that strengthens metal hydroturbine runner blade surface with electric spark deposition in conjunction with laser melting coating | |
| CN103834893B (en) | A kind of electric spark deposition strengthens the method for metal hydroturbine runner blade surface in conjunction with plasma cladding | |
| CN106521395A (en) | Anti-corrosion and anti-abrasion method for water turbine blades | |
| CN105463359A (en) | High-temperature resisting, abrasion resisting, corrosion resisting and cavitation resisting nickel-chromium-chromium carbide composite powder and coating and preparing method of coating | |
| CN108893695B (en) | Cavitation-erosion-resistant nano carbide reinforced tungsten carbide-based composite powder, coating and preparation method thereof | |
| CN102560316A (en) | Process for performing ultrasonic spray of composite coatings on surface of fan blade | |
| CN108893696B (en) | High-erosion-resistance and anti-cracking nano carbide reinforced tungsten carbide-based composite powder, coating and preparation method thereof | |
| CN112626443A (en) | Wear-resistant anticorrosive coating and preparation method thereof | |
| CN103801893A (en) | Method for corrosion repair and long-term protection of ship propeller | |
| CN107841702A (en) | A kind of powder cored filament material and the method for preparing anticorrosive erosion thermal spray metal coating | |
| CN103556002A (en) | High performance Ni-based alloy-TiB2 nanopowder as well as preparation method thereof | |
| CN102211428B (en) | Cavitation corrosion gradient reparation coating of water pump blade and producing method thereof | |
| CN113088956A (en) | Cold spraying-based corrosion-resistant composite coating and preparation method and application thereof | |
| CN105200364A (en) | Method for generating ceramic coating | |
| CN105598649A (en) | Method for strengthening surface of metal turbine runner through iron-based amorphous alloy stick | |
| CN106756711A (en) | A kind of turbine blade anticorrosion abrasionproof etching method | |
| CN112626442A (en) | High-temperature oxidation-resistant and corrosion-resistant coating and preparation method thereof | |
| CN106480395A (en) | A kind of turbine blade anticorrosion abrasionproof etching method | |
| CN109182946B (en) | Composition of wear-resistant, corrosion-resistant and medium-high temperature-resistant coating for hydraulic hoist piston rod, coating and preparation method of coating | |
| CN106480393A (en) | A kind of turbine blade anticorrosion abrasionproof etching method | |
| CN106756725A (en) | A kind of turbine blade anticorrosion abrasionproof etching method | |
| CN106435436A (en) | Water turbine blade corrosion resistance and abrasion resistance method | |
| Tripathi et al. | Study on tribological behavior of HVOF developed coatings especially for hydroturbine runner application—a concise review |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170308 |