CN108624783A - A kind of high strength titanium alloy turbine blade - Google Patents
A kind of high strength titanium alloy turbine blade Download PDFInfo
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- CN108624783A CN108624783A CN201810585851.5A CN201810585851A CN108624783A CN 108624783 A CN108624783 A CN 108624783A CN 201810585851 A CN201810585851 A CN 201810585851A CN 108624783 A CN108624783 A CN 108624783A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C14/00—Alloys based on titanium
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/14—Paints containing biocides, e.g. fungicides, insecticides or pesticides
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/16—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of other metals or alloys based thereon
- C22F1/18—High-melting or refractory metals or alloys based thereon
- C22F1/183—High-melting or refractory metals or alloys based thereon of titanium or alloys based thereon
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/12—Blades
- F01D5/28—Selecting particular materials; Particular measures relating thereto; Measures against erosion or corrosion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/12—Blades
- F01D5/28—Selecting particular materials; Particular measures relating thereto; Measures against erosion or corrosion
- F01D5/288—Protective coatings for blades
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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Abstract
The invention discloses a kind of high strength titanium alloy turbine blade, the surface of the turbine blade also sets up one layer of protective layer, and protective layer includes following components according to the mass fraction：Modified EPT rubber：10 15 parts, methyl phenyl silicone resin：15 20 parts, modifying epoxy resin by organosilicon：8 11 parts, nanometer SiC powder：57 parts, color stuffing：13 15 parts, dispersant：35 parts, coupling agent：10 15 parts, curing agent：13 15 parts, antifoaming agent：79 parts, antimildew disinfectant：13 parts；The present invention high strength titanium alloy turbine blade has good intensity, and good corrosion resistance, preparation process is simple, of low cost, and service life is long.
Description
Technical field
The present invention relates to a kind of turbine blade, specifically a kind of high strength titanium alloy turbine blade.
Background technology
Steam turbine is one of the three big hosts in thermal power plant, it is responsible for is converted into mainly appointing for mechanical energy thermal energy
Business, its operating condition directly affect the efficiency of heat engine and the safety of unit.
Steam turbine is a kind of revolving fluid dynamic machinery, and it is machine that it, which is directly played steam or the thermal energy of combustion gas,
The effect of tool energy, and blade is the vital part of steam turbine, and be one of most accurate, most important part, turbine blade
Working environment is complicated and changeable, it bears high temperature, high pressure, huge centrifugal force, steam power, steam-excited vibration under the exacting terms of pole
The collective effect of power, corrosion and vibration and wet-steam region water droplet erosion, the at high temperature mechanicalness of the turbine blade of metal
It can significantly decrease, be mainly manifested in the tension of material, antitorque, antifatigue equicohesive performance declines, however works as blade
For a long time under high temperature, the institutional framework of blade interior can change, and cause growth, the polymerization in intergranular cavity, production
Raw high-temerature creep destroys.Creep failure under long-time high-temperature condition is the typical elevated temperature strength problem of metal material, and creep is
Permanent deformation occurs long lasting for high-temperature lower part part and loses function so that being finally broken.In addition, steam turbine operation process
In bear being widely varied for multiple start and stop and output load, the periodical strong variations of vapor (steam) temperature can cause metal material
The low-cycle fatigue of material causes to fail, and creep and low-cycle fatigue all influence component life, and there are Non-linear couplings for the two, existing
Some blades will meet the performance demand of continuous improvement, and to rely solely on the application of new blade material still be difficult to meet, must
Various heat treatment technics must be applied in the manufacture of turbine blade and be can be only achieved to blade tool high efficiency, high-precision and height
The requirement in service life.
Invention content
The technical problem to be solved by the present invention is to the shortcomings that overcoming the prior art, provide a kind of high strength titanium alloy vapour
Turbine blade, the high strength titanium alloy turbine blade have good intensity, and good corrosion resistance, preparation process is simple, cost
Cheap, service life is long.
The technical solution that the present invention solves the above technical problem is：
The surface of a kind of high strength titanium alloy turbine blade, the turbine blade also sets up one layer of protective layer, and protective layer presses matter
It includes following components to measure number meter：
Modified EPT rubber：10-15 parts, methyl phenyl silicone resin：15-20 parts, modifying epoxy resin by organosilicon：8-11
Part, nanometer SiC powder：5-7 parts, color stuffing：13-15 parts, dispersant：3-5 parts, coupling agent：10-15 parts, curing agent：13-15
Part, antifoaming agent：7-9 parts, antimildew disinfectant：1-3 parts；
Color stuffing is the mixture of glass flake and titanium dioxide, and meter in mass ratio presses glass flake：Titanium dioxide=2:1 ratio
Example mixing；Dispersant is sodium tetrapolyphosphate or calgon；Coupling agent is silane coupling agent；Curing agent be diethylenetriamine or
Polyamide；Antifoaming agent is 810 antifoaming agent of Tego；Antimildew disinfectant is propiconazole or Tebuconazole and the iodo- 2- propargyls butyl ammonia of 3-
Carbamate equal proportion mixing compounding.
The technical solution that the present invention further limits is：
In aforementioned high strength titanium alloy turbine blade, the concrete operation step of modified EPT method for preparing rubber is：
Ethylene propylene diene rubber is sent in organo montmorillonite and is kneaded 8min into mixer, melting temperature is 50-80 DEG C；
Carbon black, zinc oxide, stearic acid, sulphur and accelerating agent are sequentially added into mixer, it is 100-110 DEG C to keep temperature,
Continue to be kneaded 10-20min, 9min dischargings are stood after mixing, then suppresses flakiness through double rod open mills；
StepIn manufactured thin slice stand 18-24h at room temperature, then thin slice is put into mold, in compression molding agent
On vulcanized, curing temperature be 100-130 DEG C, sulfide stress 11MPa, vulcanization time 13min；
After vulcanization cooled to room temperature can be obtained it is organic imvite modified after ethylene propylene diene rubber.
In aforementioned high strength titanium alloy turbine blade, the preparation method of modifying epoxy resin by organosilicon is as follows：
Epoxy resin 6101 is dissolved in ethyl acetate solution, is added equipped with agitating device, reflux condenser and thermometer
In three-necked flask, it is first passed through condensed water, and is gradually heating to 88 DEG C, then sequentially adds methyltriethoxysilane, deionization
Water and catalyst, high-speed stirred, insulation reaction 4h, mixing speed 600-800r/min.
In aforementioned high strength titanium alloy turbine blade, the production technology of the turbine blade is specific as follows：
Step（1）：It is material liquid that turbine blade raw material, which is fitted into melting in electric furnace, and smelting temperature is 1450-1500 DEG C, melting
Circuit power is incrementally increased in the process, and often carries out smashing material operation so that each chemical composition is by mass percentage in material liquid
Meter control exists：
C：0.12-0.18%, Mn：0.55-0.57%, Si：0.2-0.4%, Al：5-8%, V：0.30-0.32%, Nb：2-4%, Ni：
0.12-0.14%, Pd：0.01-0.03%, Sn：0.06-0.08%, Zr：0.8-1.0%, S≤0.025%, P≤0.025%, rare earth：
0.11-0.13%, surplus are Ti and inevitable impurity；
Rare earth component mass percent chemical composition is：Cerium：10-13%, praseodymium：15-20%, neodymium：17-19%, dysprosium：9-11%, remaining
For lanthanum element, the sum of the above rare earth each component is 100%；
Step（2）：Step（1）In original iron melt pretreating agent based on barium, supplemented by lanthanum is added into electric furnace before coming out of the stove；
Step（3）：By step（2）In the original iron melt come out of the stove nodulizer be added in nodularization packet carry out spheroidising, wait for that nodularization is anti-
After answering, perlite slag making is dispensed on original iron melt to purify original iron melt and skim at once；
Step（4）：By step（3）In skim after original iron melt stand a period of time in sprue cup after pour into turbine blade
Semi-finished product, the duration of pouring are no more than 9min；
Step（5）：Turbine blade semi-finished product cut blank with abrasive wheel cutting machine, after cutting on crankshaft press
Squeeze bar, swaging forming；
Step（6）：To through step（5）Treated, and turbine blade semi-finished product carry out Tempering and Quenching, specially：Using primary
Normalizing+double tempering, first time temperature are more than second of temperature；Normalizing：Formal 400-440 DEG C of temperature of fire, to temperature
After keep the temperature 5-8min；It is tempered for the first time：Using heat stepwise, first segment heating temperature is 500-520 DEG C, to temperature after keep the temperature 10-
15min, second segment heating temperature are 520-550 DEG C, to temperature after keep the temperature 8-10min, be then air-cooled to after room temperature and carry out second
Tempering；Second of tempering：Using heat stepwise, first segment heating temperature is 500-519 DEG C of heating, to temperature after keep the temperature 15-
20min, second segment heating temperature be 550-590 DEG C heating, to temperature after keep the temperature 10-13min；
Step（7）：First time bead is carried out to the turbine blade semi-finished product after Tempering and Quenching, concrete technology is：It is empty
Atmospheric pressure 0.4-0.5MPa, shot-peening time are 7-9min；Then second of bead is carried out again, and concrete technology is：Air pressure
Power 0.2-0.3mpa, shot-peening time are 2-4min；
Step（8）：By step（7）In semi-finished product after processing be machined to obtain finished product, and examine storage.
In aforementioned high strength titanium alloy turbine blade, step（3）Middle nodulizer is magnesium Antaciron or rare element ball
Agent, and the 0.5-0.7% that the nodulizer mass percentage being added is material liquid total amount, nodularization time are 65-80s.
The beneficial effects of the invention are as follows：
The present invention dispenses perlite to purify original iron melt after spheroidising and inoculation, and perlite is a kind of efficiently slagging-off
Agent uniformly dispenses behind the surface of iron liquid, and slightly agitation can be agglomerated into rapidly the skull being easily isolated with metallic solution, pull down
It can be obtained pure iron liquid after skull, reduce casting burning into sand, improve quality, and the cost of perlite itself is low, and used
It is not quick-fried in journey not splash, securely and reliably, be easy to use, perlite is pollution-free on iron liquid, without infiltration, do not influence its chemical analysis and casting
The mechanical performance of part, in use smokeless free from dust and pernicious gas pollution, can environment purification, reach and carry out production strictly in line with rules and regulations.
Service life can be increased by coating protective layer in blade outer surface, protection coating of the invention is a variety of trees
The mixture of fat combines them a little, avoids respective defect, improves whole performance, the protection coating
The problems such as blistering, cracking, whiting and delamination will not occur, which also has very strong anticorrosive and resistance to low temperature, can jail
Jail is adsorbed on metal surface, and to have good anti-rust and corrosionproperties, and the anti-corrosion time is long；The coating application is convenient, is easy to
The advantages that operation, short construction period.
There is EPDM materials i.e. EPDM material in component of the present invention, is that second is dilute, compound body of the third refining and Third monomer, it is main
Want advantage：Service life is long, and mechanical and physical performance is good, and excellent spring, use scope is wide, and major defect is production technology complexity,
Equipment investment is more, and ethylene contents are high, stretch glue intensity, weatherability, ozone resistance, extrusion performance and also improve therewith, but ethylene contains
It measures high rubber and easy tos produce crystallization, poor performance at low temperatures, while poor processability, ethylene presses matter in ethylene propylene diene rubber of the present invention
Amount percentages content is 55-65%, which ensures that EPDM material has higher elastic property, stretches glue intensity, is resistance to
Hou Xing, ozone resistance, extrusion performance etc..
The present invention is modified ethylene propylene diene rubber using organo montmorillonite, and organo montmorillonite is smectite clay through stripping
Layered silicate material made of piece dispersion, purifying modified, super-fine classified, special organic composite, has good dispersion performance,
Polymer material is can be applied to, to improve impact resistance, the fatigue resistance of polymer, since organo montmorillonite is using organic
Ion carries out ion exchange organic-treating with montmorillonite and obtains, and the montmorillonite layer spacing after organising increases, interlaminar action
Power weakens, and montmorillonite layer surface becomes lipophile from hydrophily, and surface energy reduces, when organo montmorillonite and ethylene propylene diene rubber
When blending, ethylene propylene diene rubber can easier intercalation enter in the lamella of organo montmorillonite, and organo montmorillonite lamella is supportted
It opens, the nanocomposite that the ethylene propylene diene rubber to obtain nano-dispersion is mixed with organo montmorillonite, and to ternary
The modification of EP rubbers, ethylene propylene diene rubber after modified has preferably mechanical property, and exhibits improvements over common three
The ageing-resistant performance of first EP rubbers, while the tensile strength of ethylene propylene diene rubber, tearing strength are also improved, it reduces it and pulls apart
Elongation extends service life, also improves the permeance property of its liquid, improves the obstructing capacity of its liquid, has in addition
Machine montmorillonite can improve the gas of resistance to H2S and H2S solution corrosion performances of ethylene propylene diene rubber simultaneously, this is because organic illiteracy is de-
The nano composite structure that stripping or intercal type are formd between soil and ethylene propylene diene rubber, improves the gas-liquid of ethylene propylene diene rubber
Barrier property can effectively prevent H2S gases and H2S solution to spreading inside ethylene propylene diene rubber, to improve EPDM
The corrosion resistance of rubber.
Modifying epoxy resin by organosilicon containing modifying epoxy resin by organosilicon in the present invention has both organosilicon material
With the excellent properties of epoxy resin, the internal stress of epoxy resin can have not only been reduced with modifying epoxy resin by organosilicon but also can have been increased resistance to
The performances such as high temperatures, toughness.
Nanometer SiC powder is a kind of particle of high rigidity, when containing hard particles in material, the hardness and wearability of material
It increases, on the one hand, hard particles have big bearing capacity, resistance plastic deformation, hinder abrasion of the abrasive material to matrix metal
Etc. wear-resistant effect, while hard particles can also have the function of adhering between mitigation even is eliminated friction pair, present invention adds
Suitable nanometer SiC powder introduces SiC powder into oxidation fenestra, and SiC powder itself is negatively charged, can be during oxidation
Ghandler motion is moved and is deposited in oxidation fenestra on the sunny side, since SiC powder surface energy is bigger, is easy to reunite in water, phase need to be added
The dispersant and surfactant answered, make SiC particles smoothly deposit in fenestra, enhance its wear-resisting property.
For the blade of the present invention due to alloys producing, the macrosegregation of carbon and alloying element, blade will appear eutectic
Carbide, to reduce the impact toughness of blade；The present invention is controlled by the way that lanthanide rare metal and temperature is added, to make blade
Segregation phenomenon obviously weaken, the impact toughness of blade can be increased substantially.
Since blade working area is wet-steam region, and contain a large amount of water droplets, in very high rim velocity and centrifugal force undershoot
Blade is lost, so that vane tip leading edge is generated spot corrosion and is failed, the height of blade water erosion resistent ability directly influences steam turbine
Working efficiency and safe operation；The present invention can make blade surface generate 3-5 by Tempering and Quenching coordination of processes cooling process
Mm thickness tempered martensite, its water erosion resistent ability effectively improved；In addition, second of temperature is less than is tempered temperature for the first time
Degree can reduce the temperature difference of surface and center portion, keep vane thickness direction fine microstructures uniform；It is tempered after normalizing and further subtracts
The temperature difference on small surface and center portion, to make surface to center portion performance reach unanimity；Be tempered postcooling, by water cooling with it is air-cooled
In conjunction with method then carry out air-cooled first with faster cooling velocity water cooling, finally pass through slower cooling by water to room again
Temperature, not only can be improved the water erosion resistent ability of blade, but also tissue can be made to be more uniformly distributed stabilization, stomata and trachoma seldom occurs,
The corrosion resistance that ensure that blade plays unexpected technique effect.
Specific implementation mode
Embodiment 1
The present embodiment provides a kind of high strength titanium alloy turbine blade, the surface of the turbine blade also sets up one layer of protection
Layer, protective layer include following components according to the mass fraction：
Modified EPT rubber：10 parts, methyl phenyl silicone resin：15 parts, modifying epoxy resin by organosilicon：8 parts, nano SiC
Powder：5 parts, color stuffing：13 parts, dispersant：3 parts, coupling agent：10 parts, curing agent：13 parts, antifoaming agent：7 parts, antimycotic antiseptic
Agent：1 part；
Color stuffing is the mixture of glass flake and titanium dioxide, and meter in mass ratio presses glass flake：Titanium dioxide=2:1 ratio
Example mixing；Dispersant is sodium tetrapolyphosphate；Coupling agent is silane coupling agent；Curing agent is diethylenetriamine；Antifoaming agent is Tego
810 antifoaming agent；Antimildew disinfectant is that propiconazole mixes compounding with the iodo- 2- propargyl butyl carbamates equal proportions of 3-.
The concrete operation step of above-mentioned modified EPT method for preparing rubber is：
Ethylene propylene diene rubber is sent in organo montmorillonite and is kneaded 8min into mixer, melting temperature is 50 DEG C；
Carbon black, zinc oxide, stearic acid, sulphur and accelerating agent are sequentially added into mixer, it is 100 DEG C to keep temperature, is continued
It is kneaded 10min, 9min dischargings are stood after mixing, then suppresses flakiness through double rod open mills；
StepIn manufactured thin slice stand 18h at room temperature, then thin slice is put into mold, in compression molding agent
Vulcanized, curing temperature is 100 DEG C, sulfide stress 11MPa, vulcanization time 13min；
After vulcanization cooled to room temperature can be obtained it is organic imvite modified after ethylene propylene diene rubber.
The preparation method of above-mentioned modifying epoxy resin by organosilicon is as follows：
Epoxy resin 6101 is dissolved in ethyl acetate solution, is added equipped with agitating device, reflux condenser and thermometer
In three-necked flask, it is first passed through condensed water, and is gradually heating to 88 DEG C, then sequentially adds methyltriethoxysilane, deionization
Water and catalyst, high-speed stirred, insulation reaction 4h, mixing speed 600r/min.
Above-mentioned high strength titanium alloy turbine blade, the production technology of the turbine blade are specific as follows：
Step（1）：It is material liquid that turbine blade raw material, which is fitted into melting in electric furnace, and smelting temperature is 1450 DEG C, fusion process
In incrementally increase circuit power, and often carry out smashing material operation so that each chemical composition is controlled by mass percentage in material liquid
System exists：
C：0.12%, Mn：0.55%, Si：0.2 %, Al：5%, V：0.30%, Nb：2%, Ni：0.12%, Pd：0.01%, Sn：0.06%,
Zr：0.8%, S≤0.025%, P≤0.025%, rare earth：0.11%, surplus is Ti and inevitable impurity；
Rare earth component mass percent chemical composition is：Cerium：10%, praseodymium：15%, neodymium：17%, dysprosium：9%, remaining is lanthanum element, with
The sum of upper rare earth each component is 100%；
Step（2）：Step（1）In original iron melt pretreating agent based on barium, supplemented by lanthanum is added into electric furnace before coming out of the stove；
Step（3）：By step（2）In the original iron melt come out of the stove nodulizer be added in nodularization packet carry out spheroidising, wait for that nodularization is anti-
After answering, perlite slag making is dispensed on original iron melt to purify original iron melt and skim at once；
Nodulizer is magnesium Antaciron or rare element nodulizer, and the nodulizer mass percentage being added is material liquid total amount
0.5%, the nodularization time be 65s；
Step（4）：By step（3）In skim after original iron melt stand a period of time in sprue cup after pour into turbine blade
Semi-finished product, the duration of pouring are no more than 9min；
Step（5）：Turbine blade semi-finished product cut blank with abrasive wheel cutting machine, after cutting on crankshaft press
Squeeze bar, swaging forming；
Step（6）：To through step（5）Treated, and turbine blade semi-finished product carry out Tempering and Quenching, specially：Using primary
Normalizing+double tempering, first time temperature are more than second of temperature；Normalizing：Formal 400 DEG C of temperature of fire, arrives Wen Houbao
Warm 5min；It is tempered for the first time：Using heat stepwise, first segment heating temperature is 500 DEG C, to temperature after keep the temperature 10min, second segment adds
Hot temperature is 520 DEG C, to temperature after keep the temperature 8min, be then air-cooled to after room temperature and carry out second and be tempered；Second of tempering：Using point
Duan Jiare, first segment heating temperature are 500 DEG C of heating, to temperature after keep the temperature 15min, second segment heating temperature is 550 DEG C of heating, is arrived
10min is kept the temperature after temperature；
Step（7）：First time bead is carried out to the turbine blade semi-finished product after Tempering and Quenching, concrete technology is：It is empty
Atmospheric pressure 0.4MPa, shot-peening time are 7min；Then second of bead is carried out again, and concrete technology is：Air pressure
0.2mpa, shot-peening time are 2min；
Step（8）：By step（7）In semi-finished product after processing be machined to obtain finished product, and examine storage.
Embodiment 2
The present embodiment provides a kind of high strength titanium alloy turbine blade, the surface of the turbine blade also sets up one layer of protection
Layer, protective layer include following components according to the mass fraction：
Modified EPT rubber：15 parts, methyl phenyl silicone resin：20 parts, modifying epoxy resin by organosilicon：11 parts, nano SiC
Powder：7 parts, color stuffing：15 parts, dispersant：5 parts, coupling agent：15 parts, curing agent：15 parts, antifoaming agent：9 parts, antimycotic antiseptic
Agent：3 parts；
Color stuffing is the mixture of glass flake and titanium dioxide, and meter in mass ratio presses glass flake：Titanium dioxide=2:1 ratio
Example mixing；Dispersant is calgon；Coupling agent is silane coupling agent；Curing agent is polyamide；Antifoaming agent is Tego 810
Antifoaming agent；Antimildew disinfectant is that Tebuconazole mixes compounding with the iodo- 2- propargyl butyl carbamates equal proportions of 3-.
The concrete operation step of above-mentioned modified EPT method for preparing rubber is：
Ethylene propylene diene rubber is sent in organo montmorillonite and is kneaded 8min into mixer, melting temperature is 80 DEG C；
Carbon black, zinc oxide, stearic acid, sulphur and accelerating agent are sequentially added into mixer, it is 110 DEG C to keep temperature, is continued
It is kneaded 20min, 9min dischargings are stood after mixing, then suppresses flakiness through double rod open mills；
StepIn manufactured thin slice stand at room temperature for 24 hours, then thin slice is put into mold, in compression molding agent
Vulcanized, curing temperature is 130 DEG C, sulfide stress 11MPa, vulcanization time 13min；
After vulcanization cooled to room temperature can be obtained it is organic imvite modified after ethylene propylene diene rubber.
The preparation method of above-mentioned modifying epoxy resin by organosilicon is as follows：
Epoxy resin 6101 is dissolved in ethyl acetate solution, is added equipped with agitating device, reflux condenser and thermometer
In three-necked flask, it is first passed through condensed water, and is gradually heating to 88 DEG C, then sequentially adds methyltriethoxysilane, deionization
Water and catalyst, high-speed stirred, insulation reaction 4h, mixing speed 800r/min.
Above-mentioned high strength titanium alloy turbine blade, the production technology of the turbine blade are specific as follows：
Step（1）：It is material liquid that turbine blade raw material, which is fitted into melting in electric furnace, and smelting temperature is 1500 DEG C, fusion process
In incrementally increase circuit power, and often carry out smashing material operation so that each chemical composition is controlled by mass percentage in material liquid
System exists：
C：0.18%, Mn：0.57%, Si：0.4%, Al：8%, V：0.32%, Nb：4%, Ni：0.14%, Pd：0.03%, Sn：0.08%,
Zr：1.0%, S≤0.025%, P≤0.025%, rare earth：0.13%, surplus is Ti and inevitable impurity；
Rare earth component mass percent chemical composition is：Cerium：13%, praseodymium：20%, neodymium：19%, dysprosium：11%, remaining is lanthanum element, with
The sum of upper rare earth each component is 100%；
Step（2）：Step（1）In original iron melt pretreating agent based on barium, supplemented by lanthanum is added into electric furnace before coming out of the stove；
Step（3）：By step（2）In the original iron melt come out of the stove nodulizer be added in nodularization packet carry out spheroidising, wait for that nodularization is anti-
After answering, perlite slag making is dispensed on original iron melt to purify original iron melt and skim at once；
Nodulizer is magnesium Antaciron or rare element nodulizer, and the nodulizer mass percentage being added is material liquid total amount
0.7%, the nodularization time be 80s；
Step（4）：By step（3）In skim after original iron melt stand a period of time in sprue cup after pour into turbine blade
Semi-finished product, the duration of pouring are no more than 9min；
Step（5）：Turbine blade semi-finished product cut blank with abrasive wheel cutting machine, after cutting on crankshaft press
Squeeze bar, swaging forming；
Step（6）：To through step（5）Treated, and turbine blade semi-finished product carry out Tempering and Quenching, specially：Using primary
Normalizing+double tempering, first time temperature are more than second of temperature；Normalizing：Formal 440 DEG C of temperature of fire, arrives Wen Houbao
Warm 8min；It is tempered for the first time：Using heat stepwise, first segment heating temperature is 520 DEG C, to temperature after keep the temperature 15min, second segment adds
Hot temperature is 550 DEG C, to temperature after keep the temperature 10min, be then air-cooled to after room temperature and carry out second and be tempered；Second of tempering：Using
Heat stepwise, first segment heating temperature are 519 DEG C of heating, to temperature after keep the temperature 20min, second segment heating temperature is 550-590 DEG C
Heating, to temperature after keep the temperature 13min；
Step（7）：First time bead is carried out to the turbine blade semi-finished product after Tempering and Quenching, concrete technology is：It is empty
Atmospheric pressure 0.5MPa, shot-peening time are 9min；Then second of bead is carried out again, and concrete technology is：Air pressure
0.3mpa, shot-peening time are 4min；
Step（8）：By step（7）In semi-finished product after processing be machined to obtain finished product, and examine storage.
Embodiment 3
The present embodiment provides a kind of high strength titanium alloy turbine blade, the surface of the turbine blade also sets up one layer of protection
Layer, protective layer include following components according to the mass fraction：
Modified EPT rubber：13 parts, methyl phenyl silicone resin：18 parts, modifying epoxy resin by organosilicon：9 parts, nano SiC
Powder：8 parts, color stuffing：14 parts, dispersant：4 parts, coupling agent：12 parts, curing agent：14 parts, antifoaming agent：8 parts, antimycotic antiseptic
Agent：2 parts；
Color stuffing is the mixture of glass flake and titanium dioxide, and meter in mass ratio presses glass flake：Titanium dioxide=2:1 ratio
Example mixing；Dispersant is sodium tetrapolyphosphate；Coupling agent is silane coupling agent；Curing agent is polyamide；Antifoaming agent is Tego 810
Antifoaming agent；Antimildew disinfectant is that propiconazole mixes compounding with the iodo- 2- propargyl butyl carbamates equal proportions of 3-.
The concrete operation step of above-mentioned modified EPT method for preparing rubber is：
Ethylene propylene diene rubber is sent in organo montmorillonite and is kneaded 8min into mixer, melting temperature is 65 DEG C；
Carbon black, zinc oxide, stearic acid, sulphur and accelerating agent are sequentially added into mixer, it is 105 DEG C to keep temperature, is continued
It is kneaded 15min, 9min dischargings are stood after mixing, then suppresses flakiness through double rod open mills；
StepIn manufactured thin slice stand 21h at room temperature, then thin slice is put into mold, in compression molding agent
Vulcanized, curing temperature is 115 DEG C, sulfide stress 11MPa, vulcanization time 13min；
After vulcanization cooled to room temperature can be obtained it is organic imvite modified after ethylene propylene diene rubber.
The preparation method of above-mentioned modifying epoxy resin by organosilicon is as follows：
Epoxy resin 6101 is dissolved in ethyl acetate solution, is added equipped with agitating device, reflux condenser and thermometer
In three-necked flask, it is first passed through condensed water, and is gradually heating to 88 DEG C, then sequentially adds methyltriethoxysilane, deionization
Water and catalyst, high-speed stirred, insulation reaction 4h, mixing speed 700r/min.
Above-mentioned high strength titanium alloy turbine blade, the production technology of the turbine blade are specific as follows：
Step（1）：It is material liquid that turbine blade raw material, which is fitted into melting in electric furnace, and smelting temperature is 1480 DEG C, fusion process
In incrementally increase circuit power, and often carry out smashing material operation so that each chemical composition is controlled by mass percentage in material liquid
System exists：
C：0.16%, Mn：0.56%, Si：0.3%, Al：7%, V：0.31%, Nb：3%, Ni：0.13%, Pd：0.02%, Sn：0.07%,
Zr：0.9%, S≤0.025%, P≤0.025%, rare earth：0.12%, surplus is Ti and inevitable impurity；
Rare earth component mass percent chemical composition is：Cerium：12%, praseodymium：18%, neodymium：18%, dysprosium：10%, remaining is lanthanum element, with
The sum of upper rare earth each component is 100%；
Step（2）：Step（1）In original iron melt pretreating agent based on barium, supplemented by lanthanum is added into electric furnace before coming out of the stove；
Step（3）：By step（2）In the original iron melt come out of the stove nodulizer be added in nodularization packet carry out spheroidising, wait for that nodularization is anti-
After answering, perlite slag making is dispensed on original iron melt to purify original iron melt and skim at once；
Nodulizer is magnesium Antaciron or rare element nodulizer, and the nodulizer mass percentage being added is material liquid total amount
0.6%, the nodularization time be 75s；
Step（4）：By step（3）In skim after original iron melt stand a period of time in sprue cup after pour into turbine blade
Semi-finished product, the duration of pouring are no more than 9min；
Step（5）：Turbine blade semi-finished product cut blank with abrasive wheel cutting machine, after cutting on crankshaft press
Squeeze bar, swaging forming；
Step（6）：To through step（5）Treated, and turbine blade semi-finished product carry out Tempering and Quenching, specially：Using primary
Normalizing+double tempering, first time temperature are more than second of temperature；Normalizing：Formal 420 DEG C of temperature of fire, arrives Wen Houbao
Warm 6min；It is tempered for the first time：Using heat stepwise, first segment heating temperature is 510 DEG C, to temperature after keep the temperature 13min, second segment adds
Hot temperature is 530 DEG C, to temperature after keep the temperature 9min, be then air-cooled to after room temperature and carry out second and be tempered；Second of tempering：Using point
Duan Jiare, first segment heating temperature are 515 DEG C of heating, to temperature after keep the temperature 18min, second segment heating temperature is 570 DEG C of heating, is arrived
12min is kept the temperature after temperature；
Step（7）：First time bead is carried out to the turbine blade semi-finished product after Tempering and Quenching, concrete technology is：It is empty
Atmospheric pressure 0.45MPa, shot-peening time are 8min；Then second of bead is carried out again, and concrete technology is：Air pressure
0.25mpa, shot-peening time are 3min；
Step（8）：By step（7）In semi-finished product after processing be machined to obtain finished product, and examine storage.
In addition to the implementation, the present invention can also have other embodiment.It is all to use equivalent substitution or equivalent transformation shape
At technical solution, fall within the scope of protection required by the present invention.
Claims (5)
1. a kind of high strength titanium alloy turbine blade, it is characterised in that：The surface of the turbine blade also sets up one layer of protection
Layer, the protective layer include following components according to the mass fraction：
Modified EPT rubber：10-15 parts, methyl phenyl silicone resin：15-20 parts, modifying epoxy resin by organosilicon：8-11
Part, nanometer SiC powder：5-7 parts, color stuffing：13-15 parts, dispersant：3-5 parts, coupling agent：10-15 parts, curing agent：13-15
Part, antifoaming agent：7-9 parts, antimildew disinfectant：1-3 parts；
The color stuffing is the mixture of glass flake and titanium dioxide, and meter in mass ratio presses glass flake：Titanium dioxide=2:
1 ratio mixing；The dispersant is sodium tetrapolyphosphate or calgon；Coupling agent is silane coupling agent；Described consolidates
Agent is diethylenetriamine or polyamide；The antifoaming agent is 810 antifoaming agent of Tego；The antimildew disinfectant is the third ring
Azoles or Tebuconazole mix compounding with the iodo- 2- propargyl butyl carbamates equal proportions of 3-.
2. high strength titanium alloy turbine blade according to claim 1, which is characterized in that the modified EPT rubber
The concrete operation step of glue preparation method is：
Ethylene propylene diene rubber is sent in organo montmorillonite and is kneaded 8min into mixer, melting temperature is 50-80 DEG C；
Carbon black, zinc oxide, stearic acid, sulphur and accelerating agent are sequentially added into mixer, it is 100-110 DEG C to keep temperature,
Continue to be kneaded 10-20min, 9min dischargings are stood after mixing, then suppresses flakiness through double rod open mills；
StepIn manufactured thin slice stand 18-24h at room temperature, then thin slice is put into mold, in compression molding agent
On vulcanized, curing temperature be 100-130 DEG C, sulfide stress 11MPa, vulcanization time 13min；
After vulcanization cooled to room temperature can be obtained it is organic imvite modified after ethylene propylene diene rubber.
3. high strength titanium alloy turbine blade according to claim 1, which is characterized in that the organic silicon modified epoxy
The preparation method of oxygen resin is as follows：
Epoxy resin 6101 is dissolved in ethyl acetate solution, is added equipped with agitating device, reflux condenser and thermometer
In three-necked flask, it is first passed through condensed water, and is gradually heating to 88 DEG C, then sequentially adds methyltriethoxysilane, deionization
Water and catalyst, high-speed stirred, insulation reaction 4h, mixing speed 600-800r/min.
4. high strength titanium alloy turbine blade according to claim 1, which is characterized in that the production of the turbine blade
Technique is specific as follows：
Step（1）：It is material liquid that turbine blade raw material, which is fitted into melting in electric furnace, and smelting temperature is 1450-1500 DEG C, melting
Circuit power is incrementally increased in the process, and often carries out smashing material operation so that each chemical composition is by mass percentage in material liquid
Meter control exists：
C：0.12-0.18%, Mn：0.55-0.57%, Si：0.2-0.4%, Al：5-8%, V：0.30-0.32%, Nb：2-4%, Ni：
0.12-0.14%, Pd：0.01-0.03%, Sn：0.06-0.08%, Zr：0.8-1.0%, S≤0.025%, P≤0.025%, rare earth：
0.11-0.13%, surplus are Ti and inevitable impurity；
The rare earth component mass percent chemical composition is：Cerium：10-13%, praseodymium：15-20%, neodymium：17-19%, dysprosium：9-
11%, remaining is lanthanum element, and the sum of above rare earth each component is 100%；
Step（2）：Step（1）In original iron melt pretreating agent based on barium, supplemented by lanthanum is added into electric furnace before coming out of the stove；
Step（3）：By step（2）In the original iron melt come out of the stove nodulizer be added in nodularization packet carry out spheroidising, wait for that nodularization is anti-
After answering, perlite slag making is dispensed on original iron melt to purify original iron melt and skim at once；
Step（4）：By step（3）In skim after original iron melt stand a period of time in sprue cup after pour into turbine blade
Semi-finished product, the duration of pouring are no more than 9min；
Step（5）：Turbine blade semi-finished product cut blank with abrasive wheel cutting machine, after cutting on crankshaft press
Squeeze bar, swaging forming；
Step（6）：To through step（5）Treated, and turbine blade semi-finished product carry out Tempering and Quenching, specially：Using primary
Normalizing+double tempering, first time temperature are more than second of temperature；Normalizing：Formal 400-440 DEG C of temperature of fire, to temperature
After keep the temperature 5-8min；It is tempered for the first time：Using heat stepwise, first segment heating temperature is 500-520 DEG C, to temperature after keep the temperature 10-
15min, second segment heating temperature are 520-550 DEG C, to temperature after keep the temperature 8-10min, be then air-cooled to after room temperature and carry out second
Tempering；Second of tempering：Using heat stepwise, first segment heating temperature is 500-519 DEG C of heating, to temperature after keep the temperature 15-
20min, second segment heating temperature be 550-590 DEG C heating, to temperature after keep the temperature 10-13min；
Step（7）：First time bead is carried out to the turbine blade semi-finished product after Tempering and Quenching, concrete technology is：It is empty
Atmospheric pressure 0.4-0.5MPa, shot-peening time are 7-9min；Then second of bead is carried out again, and concrete technology is：Air pressure
Power 0.2-0.3mpa, shot-peening time are 2-4min；
Step（8）：By step（7）In semi-finished product after processing be machined to obtain finished product, and examine storage.
5. high strength titanium alloy turbine blade according to claim 4, which is characterized in that step（3）Middle nodulizer is
Magnesium Antaciron or rare element nodulizer, and the 0.5- that the nodulizer mass percentage being added is the material liquid total amount
0.7%, the nodularization time is 65-80s.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110107365A (en) * | 2019-05-30 | 2019-08-09 | 南京赛达机械制造有限公司 | A kind of steam turbine pedestal |
| CN112342436A (en) * | 2020-10-21 | 2021-02-09 | 吉林大学 | Nanoparticle reinforced ZTC4 titanium alloy and preparation method thereof |
| CN113322424A (en) * | 2021-05-28 | 2021-08-31 | 索罗曼(常州)合金新材料有限公司 | Low-cost titanium alloy anti-oxidation annealing method |
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| CN104099516A (en) * | 2014-06-27 | 2014-10-15 | 南京赛达机械制造有限公司 | High-temperature resistant turbine blade and production process thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107365A (en) * | 2019-05-30 | 2019-08-09 | 南京赛达机械制造有限公司 | A kind of steam turbine pedestal |
| CN110107365B (en) * | 2019-05-30 | 2023-09-05 | 南京赛达机械制造有限公司 | Base for steam turbine |
| CN112342436A (en) * | 2020-10-21 | 2021-02-09 | 吉林大学 | Nanoparticle reinforced ZTC4 titanium alloy and preparation method thereof |
| CN113322424A (en) * | 2021-05-28 | 2021-08-31 | 索罗曼(常州)合金新材料有限公司 | Low-cost titanium alloy anti-oxidation annealing method |
| CN113322424B (en) * | 2021-05-28 | 2022-02-11 | 索罗曼(常州)合金新材料有限公司 | Low-cost titanium alloy anti-oxidation annealing method |
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