CN109653965A - A kind of composite material blade guard method - Google Patents
A kind of composite material blade guard method Download PDFInfo
- Publication number
- CN109653965A CN109653965A CN201811421213.6A CN201811421213A CN109653965A CN 109653965 A CN109653965 A CN 109653965A CN 201811421213 A CN201811421213 A CN 201811421213A CN 109653965 A CN109653965 A CN 109653965A
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- Prior art keywords
- composite material
- coating
- titanium
- material blade
- blade
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
The invention proposes a kind of composite material blade guard methods, which comprises coats bottom on the surface to be protected of composite material blade；Middle layer is coated in bottom surface；Erosion resistance layer is coated in interlayer surfaces.The present invention improves the combination effect between blade and outer protection coating by coating bottom in blade surface.The coating structure for using middle layer and erosion resistance layer simultaneously, a possibility that can either guaranteeing the erosion resistibility of coating entirety, and can be improved the toughness of metal coating coating, reduce coating cracking.
Description
Technical field
This application involves technical field of aerospace more particularly to a kind of composite material blade guard methods.
Background technique
Polymer matrix composites blade is the important means of modern Aviation fanjet loss of weight, but due to meeting material
The reason of expecting self character, under the conditions of service environment, composite material blade leading edge is highly susceptible to occurring due to foreign matter and gravel
Damage caused by Deng hitting or washing away, as shown in Figure 1, being at accidental injury at O.Therefore edge in front of the blade is usually required to pacify
V-type metal coating shell is set to improve the erosion resistibility of composite material blade, currently used manufacturing method includes that numerical control adds
Work, thermoforming and cold spraying etc..
V-type metal coating shell can realize the protection to composite material blade by machining+cementing method, due to
There is strain difference with composite material blade, and leading edge can generate temperature rise, V-type metal coating in engine working process
The composite material blade that shell can be protected with it separates, and Particulate Inclusion between the two is further exacerbated by damage, to cause to protect
Failure, leaf destruction.And with the raising of engine efficiency, blade shape is increasingly complicated, increases this method application
Difficulty.
The manufacturing method of V-type metal-back includes numerical control processing, thermoforming at present.Numerical control processing method uses bar or die forging
The disadvantages of part carries out, and there are at high cost, output capacity is low, pollution environment, especially when processing metalloid protective shell is this thin
The part of wall, complicated shape, these disadvantages are more prominent.Thermoforming process, since there are the unaffordable high temperature of composite material
Technical process, therefore the metal coating shell of its manufacture can not directly be covered in composite material blade surface.Thus it has been proposed that with
Cold spray technique directly manufactures metal hemming edge on composite material blade surface, but there is also in conjunction with matrices of composite material not
Good and easy to crack coating disadvantage.
Summary of the invention
One of to solve above-mentioned technical problem, the present invention provides a kind of composite material blade guard methods.
The embodiment of the invention provides a kind of composite material blade guard methods, which comprises
Bottom is coated on the surface to be protected of composite material blade；
Middle layer is coated in bottom surface；
Erosion resistance layer is coated in interlayer surfaces.
Preferably, the material of the bottom is copper, nickel or cupro-nickel mixture.
Preferably, the bottom with a thickness of 0.1mm-0.3mm.
Preferably, the material of the middle layer is titanium, aluminium, nickel or titanium alumel.
Preferably, the middle layer with a thickness of 0.1mm-0.5mm.
Preferably, the material of the erosion resistance layer is the mixture of metal and hard particles.
Preferably, the metal in the erosion resistance layer material is titanium, aluminium, nickel or titanium alumel, and hard particles are carbonization
The content of the combination of one or more of tungsten, chromium carbide, titanium nitride, titanium boride or titanium carbide, the hard particles is
20wt%-40wt%.
Preferably, the erosion resistance layer with a thickness of 0.2mm-0.4mm.
Preferably, described before composite material blade surface coats bottom, the method also includes: to composite wood
Material blade is roughened and/or is sensitized.
Preferably, described before composite material blade surface coats bottom, the method also includes: to composite wood
Other regions in addition to surface to be protected on material blade are sealed protection.
Beneficial effects of the present invention are as follows: the present invention improves blade and external guarantor by coating bottom in blade surface
Protect the combination effect between coating.The coating structure for using middle layer and erosion resistance layer simultaneously can either guarantee coating entirety
Erosion resistibility, and a possibility that can be improved the toughness of metal coating coating, reduce coating cracking.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present application, constitutes part of this application, this Shen
Illustrative embodiments and their description please are not constituted an undue limitation on the present application for explaining the application.In the accompanying drawings:
Fig. 1 is schematic diagram at the up-front accidental injury of composite material blade；
Fig. 2 is the flow chart of composite material blade guard method described in the embodiment of the present invention；
Fig. 3 is the composition schematic diagram of coat of metal described in the embodiment of the present invention；
Fig. 4 is the schematic cross-section of coat of metal described in the embodiment of the present invention.
Appended drawing reference:
1, composite material blade, 2, bottom, 3, middle layer, 4, erosion resistance layer, 5, coat of metal, 6, hard particles.
Specific embodiment
In order to which technical solution in the embodiment of the present application and advantage is more clearly understood, below in conjunction with attached drawing to this Shen
Exemplary embodiment please is described in more detail, it is clear that described embodiment is only that a part of the application is real
Apply example, rather than the exhaustion of all embodiments.It should be noted that in the absence of conflict, embodiment in the application and
Feature in embodiment can be combined with each other.
As shown in Fig. 2, the present embodiment proposes a kind of composite material blade guard method, which comprises
S102, bottom 2 is coated on the surface to be protected of composite material blade 1；
S104, middle layer 3 is coated on 2 surface of bottom；
S106, erosion resistance layer 4 is coated on 3 surface of middle layer.
Specifically, as shown in Figure 3 and Figure 4, the essence of composite material blade guard method described in the present embodiment is in blade
Surface metallization protective layer 5, the coat of metal 5 include 4 three parts of bottom 2, middle layer 3 and erosion resistance layer.
Metal back layer is formed on 1 surface of composite material blade using chemical plating or electric plating method first in the present embodiment
2,2 material of bottom can mix for copper, nickel or both, and the thickness control of bottom 2 is in 0.1mm-0.3mm.
Then pure metal middle layer 3 is prepared by the way of cold spraying again, the material of middle layer 3 can be titanium, aluminium, nickel
Or its alloy.The thickness of middle layer 3 is up to 0.1mm-0.5mm.
The erosion resistance layer 4 being made of metal and hard particles 6 is finally prepared on the surface of middle layer 3, metal can be
Titanium, aluminium, nickel or titanium alumel, hard particles 6 are one of tungsten carbide, chromium carbide, titanium nitride, titanium boride or titanium carbide
Or several combinations, the contents of the hard particles 6 are 20wt%-40wt%, erosion resistance layer 4 with a thickness of 0.2mm-
0.4mm。
By above-mentioned bottom 2, the structure of middle layer 3 and erosion resistance layer 4, significantly more efficient combination between coating can be made,
The erosion resistibility and toughness that ensure that coating entirety, a possibility that reducing coating cracking.
To between 1 surface of composite material blade coating bottom 2, it is also necessary to not needing metal on composite material blade 1
The step of region of protective layer is sealed protection, to avoid the region, coated substance is corroded.In addition, in order to better
Make bottom 2 it is stable be coated in blade surface, it is also necessary to blade surface carry out roughening and/or sensitized treatment.Pass through above-mentioned standard
Standby work can preferably realize the coating of coating.
The present embodiment the method is realized below by specific process:
Protection adhesive plaster is pasted in the region that composite material blade 1 does not need metal protection layer, makes adhesive plaster and blade type face paste
It closes intact, subsequent corrosive medium is avoided to enter；
1 surface of composite material blade is roughened using dilution heat of sulfuric acid, roughening solution and its concentration are sulfuric acid
430g/L-450g/L and chromium trioxide 360g/L-400g/L, Coarsening Temperature control is at 65 DEG C -80 DEG C, coarsening time 8min-
12min；
1 surface sensitizing of composite material blade is carried out using colloid palladium, sensitized solution and concentration are 0.8 g/L- of palladium chloride
1.0g/L, hydrochloric acid 300g/L-340g/L, two hydrated stannous chloride 50g/L-60g/L and seven hydrated stannic acid sodium 7g/L-10g/L,
Sensitizing temperature is room temperature, time 18min-20min；
Chemical nickel plating, solution control are as follows: six hydration nickel sulfate 30g/L, a hydration sodium hypophosphite 30g/L and citric acid
20g/L, pH value 4.2-5.2, -80 DEG C of temperature 70 C, the time is 6 hours, coating about 0.05mm-0.07mm.
Electro-coppering, solution control are as follows: copper sulphate 180-200g/L and sulfuric acid 50-70g/L.Cathode-current density is about
1A/dm2-1.5A/dm2, sedimentation time is 10 hours；Plating thickness is about 0.07mm-0.09mm.
Cold spraying titanium, 5 μm -60 μm of titanium alloy TC 4 powder size；Cold spray process parameter are as follows: nitrogen pressure 3.5MPa-
4.0MPa；780 DEG C -820 DEG C of temperature；Gas flow 80m3/h-85m3/h；Powder feed rate 3rpm-5rpm；Spray distance 35mm-
45mm, 75 ° -90 ° of spray angle；Spray gun movement speed 500mm/s -600mm/s, thickness 0.1mm-0.5mm.
Cold spraying titanium+tungsten carbide particle, powdered ingredients are+25% tungsten carbide cobalt powder WC12Co of 75% titanium alloy TC 4, titanium
5 μm -60 μm of alloy TC4 powder size, tungsten carbide cobalt powder WC12Co granularity are 5 μm -30 μm；Cold spray process parameter is nitrogen
Pressure 3.5MPa-4.0MPa；780 DEG C -820 DEG C of temperature；Gas flow 80m3/h -85m3/h；Powder feed rate 3rpm-5rpm；Spray
Apply distance 35mm-45mm, 75 ° -90 ° of spray angle；Spray gun movement speed 500mm/s-600mm/s, thickness 0.3mm-0.5mm.
Numerical control processing+hand welding is repaired, and using numerical control machining center, blade external form is machined to digital-to-analogue requirement, and to corner
Equal tiny areas use manual method pincers to repair to meet requirement.
The present embodiment improves the effect of the combination between blade and outer protection coating by coating bottom 2 in blade surface
Fruit.The coating structure for using middle layer 3 and erosion resistance layer 4 simultaneously, can either guarantee the erosion resistibility of coating entirety, and energy
Enough improve the toughness of metal coating coating, a possibility that reducing coating cracking.
Obviously, those skilled in the art can carry out various modification and variations without departing from the application's to the application
Spirit and scope.In this way, if these modifications and variations of the application belong to the model of the claim of this application and its equivalent technologies
Within enclosing, then the application is also intended to include these modifications and variations.
Claims (10)
1. a kind of composite material blade guard method, which is characterized in that the described method includes:
Bottom is coated on the surface to be protected of composite material blade；
Middle layer is coated in bottom surface；
Erosion resistance layer is coated in interlayer surfaces.
2. the method according to claim 1, wherein the material of the bottom is copper, nickel or cupro-nickel mixture.
3. method according to claim 1 or 2, which is characterized in that the bottom with a thickness of 0.1mm-0.3mm.
4. the method according to claim 1, wherein the material of the middle layer is that titanium, aluminium, nickel or titanium aluminium nickel close
Gold.
5. method according to claim 1 or 4, which is characterized in that the middle layer with a thickness of 0.1mm-0.5mm.
6. the method according to claim 1, wherein the material of the erosion resistance layer is metal and hard particles
Mixture.
7. according to the method described in claim 6, it is characterized in that, metal in the erosion resistance layer material be titanium, aluminium, nickel or
Titanium alumel, hard particles are the combination of one or more of tungsten carbide, chromium carbide, titanium nitride, titanium boride or titanium carbide,
The content of the hard particles is 20wt%-40wt%.
8. method according to claim 1 or 6, which is characterized in that the erosion resistance layer with a thickness of 0.2mm-0.4mm.
9. the method according to claim 1, wherein it is described composite material blade surface coating bottom it
Before, the method also includes: composite material blade is roughened and/or is sensitized.
10. according to claim 1 or method described in 9, which is characterized in that coat bottom on composite material blade surface described
Before, the method also includes: protection is sealed to other regions in addition to surface to be protected on composite material blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811421213.6A CN109653965B (en) | 2018-11-27 | 2018-11-27 | Composite material blade protection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811421213.6A CN109653965B (en) | 2018-11-27 | 2018-11-27 | Composite material blade protection method |
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| CN109653965A true CN109653965A (en) | 2019-04-19 |
| CN109653965B CN109653965B (en) | 2019-12-20 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100327213A1 (en) * | 2009-06-30 | 2010-12-30 | Honeywell International Inc. | Turbine engine components |
| CN106321494A (en) * | 2016-10-25 | 2017-01-11 | 郑州航空工业管理学院 | Anti-erosion and friction-resistant film for fan blades of aeto-turbofan engine and preparation method of anti-erosion and friction-resistant film |
| CN106335251A (en) * | 2016-08-22 | 2017-01-18 | 联诺欧机械科技江苏有限公司 | Oxidation resistant metal composite material |
| CN106536860A (en) * | 2014-04-09 | 2017-03-22 | 诺沃皮尼奥内股份有限公司 | Method of protecting a component of a turbomachine from liquid droplets erosion, component and turbomachine |
| CN108397418A (en) * | 2018-02-08 | 2018-08-14 | 合肥峰腾节能科技有限公司 | A kind of high-strength abrasion-proof corrosion protection radiating fan blade |
-
2018
- 2018-11-27 CN CN201811421213.6A patent/CN109653965B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100327213A1 (en) * | 2009-06-30 | 2010-12-30 | Honeywell International Inc. | Turbine engine components |
| CN106536860A (en) * | 2014-04-09 | 2017-03-22 | 诺沃皮尼奥内股份有限公司 | Method of protecting a component of a turbomachine from liquid droplets erosion, component and turbomachine |
| CN106335251A (en) * | 2016-08-22 | 2017-01-18 | 联诺欧机械科技江苏有限公司 | Oxidation resistant metal composite material |
| CN106321494A (en) * | 2016-10-25 | 2017-01-11 | 郑州航空工业管理学院 | Anti-erosion and friction-resistant film for fan blades of aeto-turbofan engine and preparation method of anti-erosion and friction-resistant film |
| CN108397418A (en) * | 2018-02-08 | 2018-08-14 | 合肥峰腾节能科技有限公司 | A kind of high-strength abrasion-proof corrosion protection radiating fan blade |
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| CN109653965B (en) | 2019-12-20 |
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