CN106676458A - Coating of hydraulic energy machine blade and hydraulic energy machine blade - Google Patents
Coating of hydraulic energy machine blade and hydraulic energy machine blade Download PDFInfo
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- CN106676458A CN106676458A CN201710050268.XA CN201710050268A CN106676458A CN 106676458 A CN106676458 A CN 106676458A CN 201710050268 A CN201710050268 A CN 201710050268A CN 106676458 A CN106676458 A CN 106676458A
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- coating
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- engine
- hydrostatic thrust
- thrust blade
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- 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
- C23C4/08—Metallic material containing only metal elements
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Coating By Spraying Or Casting (AREA)
Abstract
The invention relates to the field of mechanical surface coatings, and provides a coating of a hydraulic energy machine blade. The coating comprises a first coating body and a second coating body, wherein the second coating body is sprayed to the first coating body. Raw materials of the first coating body are mainly composed of nickel and aluminum or nickel and chromium. Raw materials of the second coating body include, by weight, 85-90 parts of aluminum oxide, 10-15 parts of titanium carbide, 30-35 parts of tungsten carbide, 8-10 parts of cobalt, 5-8 parts of silicon carbide and 1-3 parts of graphite. Through the coating of the hydraulic energy machine blade, erosion resistance of the hydraulic energy machine blade can be improved, and the service life of the hydraulic energy machine blade is prolonged. The invention further provides the hydraulic energy machine blade. The coating of the hydraulic energy machine blade is sprayed to the surface of the hydraulic energy machine blade, and the hydraulic energy machine blade has the beneficial effect of being long in service life.
Description
Technical field
The present invention relates to mechanical surface coatings art, in particular to the coating and engine using hydrostatic thrust of a kind of engine using hydrostatic thrust blade
Blade.
Background technology
Nowadays, electric energy has been the indispensable energy of people, and in existing generation mode, hydroelectric generation occupies critically important
Status, and hydroelectric generation mainly by engine using hydrostatic thrust work come realize by current movable property give birth to energy be converted into electric energy, due to water
Stream long-time is washed away to engine using hydrostatic thrust blade, causes engine using hydrostatic thrust blade to be easily etched damage, and existing prevents engine using hydrostatic thrust leaf
The mode that piece is damaged is typically with the mode of plasma spraying and sprays one layer of overcoat to strengthen in engine using hydrostatic thrust blade outer surface
The life-span of engine using hydrostatic thrust blade, but even so, existing engine using hydrostatic thrust blade coating on its surface after using 5-6 starts
Appearance comes off, and causes engine using hydrostatic thrust blade to start to be etched.
The content of the invention
The invention provides a kind of coating of engine using hydrostatic thrust blade, it is intended to extend the life-span of engine using hydrostatic thrust blade.
Present invention also offers a kind of engine using hydrostatic thrust blade, the life-span of the more existing engine using hydrostatic thrust blade of its service life is longer.
What the present invention was realized in：
A kind of coating of engine using hydrostatic thrust blade, it includes first coating and second coating, and second coating is sprayed at first coating
On, the raw material of first coating is mainly made up of nickel and aluminum or nickel and chromium, and the raw materials by weight portion meter of second coating includes：Three oxygen
Change two aluminum 85-90 parts, titanium carbide 10-15 parts, tungsten carbide 30-35 parts, cobalt 8-10 parts, carborundum 5-8 parts and graphite 1-3 parts.
Further, in preferred embodiments of the present invention, the raw material of second coating is counted also include molybdenum 2- by weight
4 parts.
Further, in preferred embodiments of the present invention, the raw material of second coating is powder, and the original of second coating
The granularity of material is 10-30 microns.
Further, in preferred embodiments of the present invention, the raw materials by weight portion meter of second coating also includes dioxy
Change titanium 8-10 parts.
Further, in preferred embodiments of the present invention, the raw materials by weight portion meter of second coating includes：Three oxidations
Two aluminum 87-88 parts, titanium carbide 12-13 parts, tungsten carbide 32-33 parts, cobalt 8.5-9 parts, carborundum 6-7 parts, graphite 1.5-2 parts.
Further, in preferred embodiments of the present invention, count by weight, the raw material of first coating is by nickel 70-83
Part and aluminum 17-30 parts composition, or be made up of nickel 70-83 parts and chromium 25-35 parts.
Further, in preferred embodiments of the present invention, the raw material of first coating is powder, the raw material of first coating
Granularity be 150-250 microns.
Further, in preferred embodiments of the present invention, the raw materials by weight portion meter of first coating, by nickel 78-81
Part and aluminum 19-22 parts composition.
A kind of engine using hydrostatic thrust blade, engine using hydrostatic thrust blade surface is coated with the coating of above-mentioned engine using hydrostatic thrust blade.
Further, in preferred embodiments of the present invention, the first coating of the coating of engine using hydrostatic thrust blade and second apply
Layer is sprayed at successively the surface of engine using hydrostatic thrust blade by plasma spraying method.
The invention has the beneficial effects as follows：The coating of the engine using hydrostatic thrust blade that the present invention is obtained by above-mentioned design, because it has
Various high-hardness and can increase engine using hydrostatic thrust blade surface flatness material and mixed using suitable proportioning,
Its surface energy for being sprayed at engine using hydrostatic thrust blade improves the abrasion-resistance of engine using hydrostatic thrust blade, extends the use longevity of engine using hydrostatic thrust blade
Life.The engine using hydrostatic thrust blade that obtained by above-mentioned design of the present invention, the characteristics of with long service life.
Specific embodiment
To make purpose, technical scheme and the advantage of the embodiment of the present invention clearer, below will be in the embodiment of the present invention
Technical scheme be clearly and completely described.Unreceipted actual conditions person, builds according to normal condition or manufacturer in embodiment
The condition of view is carried out.Agents useful for same or the unreceipted production firm person of instrument, being can pass through the conventional product that commercially available purchase is obtained
Product.
The coating and engine using hydrostatic thrust blade of the engine using hydrostatic thrust blade of the embodiment of the present invention are illustrated below.
Described engine using hydrostatic thrust is equal to the hydraulic turbine in the present invention.
A kind of coating of engine using hydrostatic thrust blade, it includes first coating and second coating, counts by weight, first coating by
Nickel 70-83 parts and aluminum 17-30 parts constitute, or are made up of nickel 70-83 parts and chromium 25-35 parts.First coating is used as tack coat, institute
Role is second coating to be bonded on the engine using hydrostatic thrust blade of coating layer to be painted, and first coating is from nickel and aluminum or nickel
With chromium with aluminum as major ingredient, the more mixed-powder of weight fraction shared by aluminum sprays to the surface of engine using hydrostatic thrust blade and sprays the second painting again
Layer can reach preferable adhesive effect so that second coating can more firmly be adhered to the surface of engine using hydrostatic thrust blade.First applies
The granularity of the raw material of layer is 150-250 microns.Granularity is unsuitable excessive, and granularity is excessive to cause first coating surface to be likely to occur dimpling
Body, and then cause the surface of the engine using hydrostatic thrust blade for being coated with this coating easily to be caused localized crackses occur by water slug, go out coating
The problems such as existing surface abrasion, peeling.On the premise of ensureing that granularity is not excessive, relatively costly small grain size raw material is not adopted.
Count by weight, second coating includes aluminium sesquioxide 85-90 parts, titanium carbide 10-15 parts, tungsten carbide 30-35
Part, cobalt 8-10 parts, carborundum 5-8 parts and graphite 1-3 parts.The coating that general plasma spraying is adopted is typically with three oxygen
The mixed-powder for changing two aluminum and titanium oxide is major ingredient, or list is with tungsten-carbide powder as major ingredient, the coating spray with these as major ingredient
Engine using hydrostatic thrust blade obtained by painting, erosive wear resistance is general.The present invention is using the mixed of aluminium sesquioxide, titanium carbide, tungsten carbide and cobalt
Conjunction powder is major ingredient, especially adds the titanium carbide that hardness is only second to diamond, greatly improves the second of powder spray formation
The hardness of coating.Meanwhile, being additionally added can improve the carborundum and graphite of second coating surface flatness so that second coating table
Face smoothness increase, and through repeatedly testing repeatedly, draw above-mentioned optimum proportioning so that water is to being coated with the water energy of second coating
The erosion effect of machine blade is greatly reduced.The granularity of the raw material of second coating is 10-30 microns.Second coating is to be sprayed at water energy
The most top layer of the coating of machine blade surface, the bigger frictional force of smoothness on the less second coating surface of granularity of its raw material is less,
Erosion resistance is also stronger.
Preferably, the raw material of second coating also includes molybdenum 2-4 parts, the hardness is bigger of molybdenum, and it has magnetic, can not only
Further improve the hardness of second coating can also cause to be connected with each other between each particle of second coating it is tightr.
It is highly preferred that the raw material of second coating also includes titanium dioxide 8-10 parts, titanium dioxide is except with higher hard
Degree also has preferable adhesiveness so that it is more firm that second coating bonds to first coating.
A kind of engine using hydrostatic thrust blade, the surface spraying of the engine using hydrostatic thrust blade has the coating of above-mentioned engine using hydrostatic thrust blade, the engine using hydrostatic thrust
Blade adopts plasma spraying method by the coating spraying of above-mentioned engine using hydrostatic thrust blade in the surface of engine using hydrostatic thrust blade to be sprayed, adopts
The coating for spraying above-mentioned engine using hydrostatic thrust blade with plasma spraying method is comprised the following steps：
The first step, material preparation step.
Pretreated feedstock is got the raw materials ready：Weigh quartz sand of the purity at least above 88% enough.
First coating material preparation：By weight meter weighs nickel 70-83 part and aluminum 17- that granularity is 150-250 microns
30 parts, or nickel 70-83 parts and chromium 25-35 parts.
Second coating material preparation：By weight meter weighs aluminium sesquioxide 85-90 parts that granularity is 10-30 microns,
Titanium carbide 10-15 parts, tungsten carbide 30-35 parts, cobalt 8-10 parts, carborundum 5-8 parts, graphite 1-3 parts, molybdenum 2-4 parts and titanium dioxide
Titanium 8-10 parts.
Second step, pre-treatment step.
The surface wipes of engine using hydrostatic thrust blade to be sprayed are cleaned out, engine using hydrostatic thrust blade is treated that spray plane is fixed, adopted
The quartz sand that dry type sandblasting machine obtains first step weighed amount in the range of 100-300mm in 3-4 atmospheric pressure compressed air
Treat that spray plane sprays towards engine using hydrostatic thrust blade, until stopping sandblasting after the surface no-reflection of engine using hydrostatic thrust blade to be painted.Then, air is used
Compressor, compressed air is clean by blasting surface cleaning.
3rd step, first coating spraying process.
The raw material of the first coating obtained alleged by the first step is put in powder feeding machine, spray gun is arranged at and water energy to be sprayed
Powder sending quantity is set to 25 Grams Per Minutes by machine blade at 90-100mm on powder feeding machine, and setting is supplied gas class in air supply system
Type and throughput：Striking gas is hydrogen, and flow is 30-35 liter/min；Working gas is nitrogen, and flow is 30-35 liter/min；
Powder feeding gas is nitrogen, and flow is 12-14 liter/min；Auxiliary gas is hydrogen, and flow is 1-1.5 liter/min.Other are set
Afterwards, open spray gun to spray engine using hydrostatic thrust blade, it is 200 microns that first coating thickness is obtained after spraying.This supplies gas and type and send
Tolerance is the common type and tolerance of plasma spraying.
4th step, second coating spraying process.
The second coating raw material obtained alleged by the first step is put in powder feeding machine, spray gun is arranged at and engine using hydrostatic thrust to be sprayed
Blade distance for 120-130mm at, powder sending quantity and in air supply system arrange supply gas type and gas pushing quantity and first coating
Identical during spraying, it is 340 microns that second coating thickness is obtained after spraying.
5th step, sealing of hole step.
The engine using hydrostatic thrust blade that 4th step is sprayed is cooled down, after being cooled to room temperature, engine using hydrostatic thrust blade is removed, using micro-
Spar wax makes microcrystalline wax melt in the surface of engine using hydrostatic thrust blade to prevent coating adsorbing moisture using the preheating of engine using hydrostatic thrust blade
And affect quality.
The feature and performance of the present invention are described in further detail with reference to embodiments.
Embodiment 1
In the present embodiment, the raw material fraction meter by weight of first coating is 150 microns by 70 parts of nickel and 30 parts of granularities of aluminum
Mixed-powder is constituted；The raw material of second coating fraction meter by weight is by 85 parts of aluminium sesquioxide, 15 parts of titanium carbide, tungsten carbide 30
Part, 10 parts of cobalt, 5 parts of carborundum, 3 parts of graphite, 2 parts of molybdenum and the mixed-powder composition that 10 parts of granularities of titanium dioxide are 10 microns.
The raw material composition of the present embodiment plasma spraying method as described above is sprayed the coating of engine using hydrostatic thrust blade
Engine using hydrostatic thrust blade surface is applied to, No. 1 engine using hydrostatic thrust blade is obtained.
It is pointed out that in other embodiments of the invention, above-mentioned spraying method and spray parameters can be according to making
Environment difference is modified.
Embodiment 2
In the present embodiment, the raw material fraction meter by weight of first coating is 250 microns by 83 parts of nickel and 17 parts of granularities of aluminum
Mixed-powder is constituted；The raw material of second coating fraction meter by weight is by 90 parts of aluminium sesquioxide, 10 parts of titanium carbide, tungsten carbide 35
Part, 8 parts of cobalt, 8 parts of carborundum, 1 part of graphite, 4 parts of molybdenum and the mixed-powder composition that 8 parts of granularities of titanium dioxide are 30 microns.
The raw material composition of the present embodiment plasma spraying method as described above is sprayed the coating of engine using hydrostatic thrust blade
Engine using hydrostatic thrust blade surface is applied to, No. 2 engine using hydrostatic thrust blades are obtained.
It is pointed out that in other embodiments of the invention, above-mentioned spraying method and spray parameters can be according to making
Environment difference is modified.
Embodiment 3
In the present embodiment, the raw material fraction meter by weight of first coating is 170 microns by 82 parts of nickel and 25 parts of granularities of chromium
Mixed-powder is constituted；The raw material of second coating fraction meter by weight is by 87 parts of aluminium sesquioxide, 12.5 parts of titanium carbide, tungsten carbide
32.5 parts, 8.5 parts of cobalt, 6.5 parts of carborundum, 1.7 parts of graphite, the mixed powder that 9 parts of granularities of 3 parts of molybdenum and titanium dioxide are 20 microns
End composition.
The raw material composition of the present embodiment plasma spraying method as described above is sprayed the coating of engine using hydrostatic thrust blade
Engine using hydrostatic thrust blade surface is applied to, No. 3 engine using hydrostatic thrust blades are obtained.
It is pointed out that in other embodiments of the invention, above-mentioned spraying method and spray parameters can be according to making
Environment difference is modified.
Embodiment 4
In the present embodiment, the raw material fraction meter by weight of first coating is 240 microns by 80 parts of nickel and 25 parts of granularities of aluminum
Mixed-powder is constituted；The raw material of second coating fraction meter by weight is by 87 parts of aluminium sesquioxide, 12 parts of titanium carbide, tungsten carbide 32
Part, 8.5 parts of cobalt, 6 parts of carborundum, 1.5 parts of graphite, 9 parts of titanium dioxide and the mixed-powder group that 3 parts of granularities of molybdenum are 25 microns
Into.
The raw material composition of the present embodiment plasma spraying method as described above is sprayed the coating of engine using hydrostatic thrust blade
Engine using hydrostatic thrust blade surface is applied to, No. 4 engine using hydrostatic thrust blades are obtained.
It is pointed out that in other embodiments of the invention, above-mentioned spraying method and spray parameters can be according to making
Environment difference is modified.
Embodiment 5
In the present embodiment, the raw material fraction meter by weight of first coating is 210 microns by 72 parts of nickel and 29 parts of granularities of aluminum
Mixed-powder is constituted；The raw material of second coating fraction meter by weight is by 88 parts of aluminium sesquioxide, 13 parts of titanium carbide, tungsten carbide 33
Part, 9 parts of cobalt, 7 parts of carborundum, 2 parts of graphite, 8 parts of titanium dioxide and the mixed-powder composition that 2.5 parts of granularities of molybdenum are 27 microns.
The raw material composition of the present embodiment plasma spraying method as described above is sprayed the coating of engine using hydrostatic thrust blade
Engine using hydrostatic thrust blade surface is applied to, No. 5 engine using hydrostatic thrust blades are obtained.
It is pointed out that in other embodiments of the invention, above-mentioned spraying method and spray parameters can be according to making
Environment difference is modified.
Embodiment 6
In the present embodiment, the raw material fraction meter by weight of first coating is 200 microns by 75 parts of nickel and 35 parts of granularities of chromium
Mixed-powder is constituted；The raw material of second coating fraction meter by weight is by 87 parts of aluminium sesquioxide, 13 parts of titanium carbide, tungsten carbide 32
Part, 9 parts of cobalt, 6 parts of carborundum, 2 parts of graphite and the mixed-powder composition that 8.5 parts of granularities of titanium dioxide are 25 microns.
The raw material composition of the present embodiment plasma spraying method as described above is sprayed the coating of engine using hydrostatic thrust blade
Engine using hydrostatic thrust blade surface is applied to, No. 6 engine using hydrostatic thrust blades are obtained.
It is pointed out that in other embodiments of the invention, above-mentioned spraying method and spray parameters can be according to making
Environment difference is modified.
Embodiment 7
In the present embodiment, the raw material fraction meter by weight of first coating is 230 microns by 80 parts of nickel and 30 parts of granularities of chromium
Mixed-powder is constituted；The raw material of second coating fraction meter by weight is by 88 parts of aluminium sesquioxide, 12 parts of titanium carbide, tungsten carbide 33
Part, 8.5 parts of cobalt, 7 parts of carborundum, 1.5 parts of graphite and the mixed-powder composition that 3 parts of granularities of molybdenum are 18 microns.
The raw material composition of the present embodiment plasma spraying method as described above is sprayed the coating of engine using hydrostatic thrust blade
Engine using hydrostatic thrust blade surface is applied to, No. 7 engine using hydrostatic thrust blades are obtained.
It is pointed out that in other embodiments of the invention, above-mentioned spraying method and spray parameters can be according to making
Environment difference is modified.
Embodiment 8
In the present embodiment, the raw material fraction meter by weight of first coating is 240 microns by 72 parts of nickel and 25 parts of granularities of aluminum
Mixed-powder is constituted；The raw material of second coating fraction meter by weight is by 89 parts of aluminium sesquioxide, 11 parts of titanium carbide, tungsten carbide 31
Part, 9.5 parts of cobalt, 6.5 parts of carborundum and the mixed-powder composition that 2 parts of granularities of graphite are 25 microns.
The raw material composition of the present embodiment plasma spraying method as described above is sprayed the coating of engine using hydrostatic thrust blade
Engine using hydrostatic thrust blade surface is applied to, No. 8 engine using hydrostatic thrust blades are obtained.
It is pointed out that in other embodiments of the invention, above-mentioned spraying method and spray parameters can be according to making
Environment difference is modified.
Test example
The engine using hydrostatic thrust blade for choosing three different production firm's productions is respectively designated as No. 9, No. 10 and No. 11.
With abrasion-resistance testing machine, 1-11 engine using hydrostatic thrusts are taken under conditions of load 0.1kg, time 30s using same coated abrasive
A part for the more smooth same position of blade carries out wear-resistant experiment, and the weight of its loss is surveyed after the completion of test.
The different engine using hydrostatic thrust blade wear amounts of table 1
As can be seen from the above table, the wear extent of 9-11 engine using hydrostatic thrusts blade is significantly greater than the abrasion of 1-8 engine using hydrostatic thrust blades
Amount, it is possible thereby to the erosive wear resistance of 9-11 engine using hydrostatic thrust blades is deduced less than 1-8 engine using hydrostatic thrust blades, and No. 7 and No. 8 water energies
Wear extent of the wear extent of machine blade more than 1-5 engine using hydrostatic thrust blades, it can be seen that add dioxy in the raw material of second coating
Change titanium contribute to increase engine using hydrostatic thrust blade abrasion-resistance, and the wear extent of the engine using hydrostatic thrust blade of No. 6 and No. 8 more than No. 1-5 with
The wear extent of engine using hydrostatic thrust blade, also illustrate that and add molybdenum to lift the erosion resistance of engine using hydrostatic thrust blade in the raw material of second coating
Property.And in 1-8 turbine blades, the wear extent of No. 3, No. 4 and No. 5 is minimum, the raw material of its second coating for adopting is three
Al 2 O 87-88 parts, titanium carbide 12-13 parts, tungsten carbide 32-33 parts, cobalt 8.5-9 parts, carborundum 6-7 parts, graphite 1.5-2 parts
It is interior.Therefore the raw material of second coating is in aluminium sesquioxide 87-88 parts, titanium carbide 12-13 parts, tungsten carbide 32-33 parts, cobalt 8.5-9
Part, carborundum 6-7 parts, when in graphite 1.5-2 parts, the abrasion-resistance of engine using hydrostatic thrust blade is better.
In sum, the coating of the engine using hydrostatic thrust blade that the present invention is provided can effectively increase the abrasion-resistance of engine using hydrostatic thrust blade
So as to extend the life-span of engine using hydrostatic thrust blade.And the longevity of the life-span more existing engine using hydrostatic thrust blade of the engine using hydrostatic thrust blade that the present invention is provided
Life length.
Embodiments described above is a part of embodiment of the invention, rather than the embodiment of whole.The reality of the present invention
The detailed description for applying example is not intended to limit the scope of claimed invention, but is merely representative of the selected enforcement of the present invention
Example.Based on the embodiment in the present invention, what those of ordinary skill in the art were obtained under the premise of creative work is not made
Every other embodiment, belongs to the scope of protection of the invention.
Claims (10)
1. a kind of coating of engine using hydrostatic thrust blade, it is characterised in that it includes first coating and second coating, the second coating spray
It is applied in the first coating, the raw material of the first coating is mainly made up of nickel and aluminum or nickel and chromium, the second coating
Raw materials by weight portion meter includes：Aluminium sesquioxide 85-90 parts, titanium carbide 10-15 parts, tungsten carbide 30-35 parts, cobalt 8-10 parts,
Carborundum 5-8 parts and graphite 1-3 parts.
2. the coating of engine using hydrostatic thrust blade according to claim 1, it is characterised in that the raw material of the second coating is by weight
Number meter also includes molybdenum 2-4 parts.
3. the coating of engine using hydrostatic thrust blade according to claim 1, it is characterised in that the raw material of the second coating is powder
Shape, and the granularity of the raw material of the second coating is 10-30 microns.
4. the coating of engine using hydrostatic thrust blade according to claim 1, it is characterised in that the raw material of the second coating is by weight
Number meter also includes titanium dioxide 8-10 parts.
5. the coating of engine using hydrostatic thrust blade according to claim 1, it is characterised in that the raw material of the second coating is by weight
Number meter includes：Described aluminium sesquioxide 87-88 parts, described titanium carbide 12-13 parts, described tungsten carbide 32-33 parts, the cobalt
8.5-9 parts, described carborundum 6-7 parts, described graphite 1.5-2 parts.
6. the coating of engine using hydrostatic thrust blade according to claim 1, it is characterised in that count by weight, described first applies
The raw material of layer is made up of described nickel 70-83 parts and described aluminum 17-30 parts, or by described nickel 70-83 parts and described chromium 25-35 parts
Composition.
7. the coating of engine using hydrostatic thrust blade according to claim 2, it is characterised in that the raw material of the first coating is powder
Shape, the granularity of the raw material of the first coating is 150-250 microns.
8. the coating of engine using hydrostatic thrust blade according to claim 6, it is characterised in that the raw material of the first coating is by weight
Number meter, is made up of described nickel 78-81 parts and described aluminum 19-22 parts.
9. a kind of engine using hydrostatic thrust blade, it is characterised in that the engine using hydrostatic thrust blade surface is sprayed just like the water described in claim 1-8
The coating of energy machine blade.
10. engine using hydrostatic thrust blade according to claim 9, it is characterised in that described the of the coating of the engine using hydrostatic thrust blade
One coating and the second coating are sprayed at successively the surface of the engine using hydrostatic thrust blade by plasma spraying method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710050268.XA CN106676458A (en) | 2017-01-23 | 2017-01-23 | Coating of hydraulic energy machine blade and hydraulic energy machine blade |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710050268.XA CN106676458A (en) | 2017-01-23 | 2017-01-23 | Coating of hydraulic energy machine blade and hydraulic energy machine blade |
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| CN106676458A true CN106676458A (en) | 2017-05-17 |
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