CN102978565A - Seepage prevention method and fixture for aerial engine blade rabbet - Google Patents

Seepage prevention method and fixture for aerial engine blade rabbet Download PDF

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Publication number
CN102978565A
CN102978565A CN201210473320XA CN201210473320A CN102978565A CN 102978565 A CN102978565 A CN 102978565A CN 201210473320X A CN201210473320X A CN 201210473320XA CN 201210473320 A CN201210473320 A CN 201210473320A CN 102978565 A CN102978565 A CN 102978565A
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China
Prior art keywords
blade
tenon
cotton
protective sleeve
rabbet
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CN201210473320XA
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CN102978565B (en
Inventor
王福平
刘红斌
霍世军
梁养民
谢国印
任萍
戴静茹
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AECC Aviation Power Co Ltd
AVIC Aviation Engine Corp PLC
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Xian Aviation Power Co Ltd
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Abstract

The invention relates to a seepage prevention method and a fixture for an aerial engine blade rabbet. The seepage prevention method for the aerial engine blade rabbet comprises the following steps of: after heating the cleaned blade rabbet, winding aluminum oxide cotton on the outer surface of the blade rabbet, and clamping the aluminum oxide cotton wound on the blade rabbet by two metal clamps; then putting the blade rabbet wrapped by the aluminum oxide cotton into a metal protective jacket together with the metal clamps; and taking mixtures of ferro-aluminum powders, aluminum-silicon powders and tetra-methylammonium chloride as seepage agents, and carrying out gas aluminizing in a conventional method. The aluminum oxide, used in the invention, can resist corrosive atmosphere, and can not generate any chemical reaction and further generate pollution to a blade. Due to the adoption of the seepage prevention method and the fixture for the aerial engine blade rabbet, seepage layers on the rabbet part can be completely removed by only carrying out processes of wet grit blasting and coloring for one time, the repeated processes of dry grit blasting and the coloring are avoided, the production efficiency is improved for 1-2 times, and 30-40% of cost is saved; and furthermore, the operation is simple, and the seepage prevention effect is good.

Description

A kind of Turbine Blade Fir Tree Roots anti-seepage method and anchor clamps
Technical field
The inventive method is that the limit blade tenon contacts with gas when the aluminising of blade of aviation engine inner chamber gas, and control blade tenon aluminized coating thickness is in 0～5 mu m range.
Background technology
The method of original protection blade tenon is to make nexine with adiabatic aluminium silicate wool, makes the whole tenon of outer parcel blade with nickel foil again, then tightens with the superalloy silk, and the place, slit is coated with glass lubricant.After the gas aluminising, the tenon surface is prone to the discontinuous infiltration layer of 20～25 μ m, and the phenomenon of efflorescence, volatilization appearred in adiabatic aluminium silicate wool and lubricant, this has caused blade inner chamber and outside deposition a large amount of Al element and Si elements.The anti-seepage effect of this guard method is poor, and blade tenon alitizing layer thickness is overproof.
For the overproof blade of tenon aluminized coating, take the Recycle design of dried blast+painted processing (electric furnace processing), remove fully with the infiltration layer that guarantees the blade tenon position, this kind Recycle design often needs repetition 3～4 times, the more important thing is that dried blast very easily causes tenon thickness overproof, causes blade to be scrapped.
Summary of the invention
In order to overcome the shortcoming that former technique anti-seepage effect is poor, production efficiency is low, the present invention proposes the Turbine Blade Fir Tree Roots anti-seepage method after a kind of improve.
Detailed process of the present invention is:
Dirt in the step 1, cleaning blade; The sand export of sandblast machine is aimed at 4 air inlet ports on the end face of blade tenon top, to the blade inner chamber blast that wet, with greasy dirt or other dirts of removal blade inner chamber; The blast of blast is 0.1～0.2MPa, and the time of each used in wet sandblasting of blades is 5～8s;
Step 2, the residual sand grains of cleaning blade inner chamber; The sand grains blade inner chamber is residual by pressurized air blows out;
Step 3, cleaning blade; Sand grains and other dirts with acetone and alcohol wash blade inner chamber and outside surface;
Step 4, the heating blade; Blade is heated to 160～200 ℃ in process furnace, insulation 30～40min;
Step 5, the protection blade tenon; Twine with the outside surface of aluminium sesquioxide cotton with blade tenon, and cotton four intimate with blade tenon of described aluminium sesquioxide are fitted; The Al of described aluminium sesquioxide cotton 2O 3Content is 80%; The aluminium sesquioxide cotton that will be wrapped on the blade tenon with two metal clips clamps; And the blade tenon that will be wound with the aluminium sesquioxide cotton is together put into protective sleeve together with metal clip;
Step 6 is installed protective sleeve; By the steady brace on the base plate protective sleeve and base plate are fixed;
Step 7, the gas aluminising; Add 50% ferro-aluminum powder, 50% aluminium silica flour and added the penetration enhancer of 10% four ammonium chlorides of total amount in ball mill, mixed 2 hours, penetration enhancer is mixed, described penetration enhancer per-cent all is weight percentage; The ferro-aluminum powder, pure aluminium powder and four ammonium chlorides that mix are put into the aluminising dish, again the aluminising dish is put into aluminizing furnace; The protector that has loaded blade is put into aluminizing furnace, adopt ordinary method to carry out 1050 ℃, be incubated 4 hours gas aluminising.
The profile of described base plate is parallelogram; The geometric centre of base plate has communicating pores, and the position of the airflow hole on the position of this communicating pores and the protective sleeve end plate is corresponding; Open holes is arranged respectively on the symmetric angle of base plate.
Described metal clip comprises two " recessed " font clamping plate that cooperatively interact; The shape of one side surface of two clamping plates matches with the profile of a part of tenon tooth of blade tenon respectively; The opposite side surface of two clamping plates is the inclined-plane, and the profile that makes the metal clip after cooperatively interacting is parallelogram.
Described protective sleeve is mount structure, and its cross section is the parallelogram that cooperates with the metal clip profile; One end of protective sleeve has end plate, and there is the placed side of metal clip on the surface that this end plate is positioned at protective sleeve; The airflow hole that perforation is arranged in the geometric centre of described end plate; Described airflow hole is strip, and its length must make this airflow hole be communicated with 4 air inlet ports that are positioned at blade tenon top end face with width; There are two angles of end plate one end to be symmetrically distributed with the connection pin-and-hole at described protective sleeve.
The technical scheme that the present invention takes comprises:
1) to the blade inner chamber blast that wets.
2) with the residual sand grains of pressurized air cleaning blade inner chamber.
3) blade is carried out ultrasonic cleaning.
4) with blade insulation 30～40min under 160～200 ℃.
5) in No. 80 aluminium sesquioxide cotton of blade tenon position parcel three floor.
6) metal clip is put into metal protection protector, utilize the inclined-plane that metal clip and blade tenon are fixed.
7) utilize the steady brace on the base plate that metal protection protector and base plate are fixed.
8) protector is incubated 20～40min together with blade under 120～150 ℃.
The protector that 9) will load blade is put into aluminizing furnace and is carried out the gas aluminising.
10) gaseous aluminum enters the blade air inlet port by inlet mouth, and the blade inner chamber is carried out aluminising.
Compare with raw-gas aluminising tenon antiseepage guard method, No. 80 aluminium sesquioxide cottons among the present invention remain intact does not have efflorescence and volatilization, because Al in the high aluminum wool that the present invention chooses 2O 3Content be 80%, can withstand aggressive atmosphere, and any chemical reaction not occur, not the more important thing is to produce blade and pollute; 2) fence operation of blade tenon is simple, and operator's labour intensity is low, good seepage-proof property, 3) the blade tenon infiltration layer is discontinuous, and thinner, only has about 5 μ m, very little to substantially processing the tenon size impact that puts in place, be easy to remove this infiltration layer by the method for wet blast.After using this method, only need once wet blast and painted processing (electric furnace processings), can remove the infiltration layer at tenon position fully, that has avoided blade repeats dried blast and painted processing, enhances productivity 1～2 times, saving cost 30～40%.
Description of drawings
Fig. 1 is that blade and aluminium sesquioxide are cotton, the assembling synoptic diagram of metal clip;
Fig. 2 is that the A of Fig. 1 is to diagram;
Fig. 3 is the vertical view of metal protection protector;
Fig. 4 is that the A of Fig. 3 is to sectional view;
Fig. 5 is the vertical view of base plate;
Fig. 6 is the front view of base plate;
It is schema of the present invention during Fig. 7.
Among the figure:
1. cotton 4. metal clips, 5. inlet mouths of blade 2. blade tenons 3. aluminium sesquioxides
6. air inlet port 7. metal protection protectors 8. base plates 9. steady braces
Embodiment
Present embodiment 1 is a kind of Turbine Blade Fir Tree Roots anti-seepage method, and detailed process is:
Dirt in the step 1, cleaning blade.The sand export of sandblast machine is aimed at 4 air inlet ports 6 on the blade 1 tenon top end face, to the blade 1 inner chamber blast that wet, with greasy dirt or other dirts of removal blade 1 inner chamber.The sand that uses during described blast is 150 purpose aluminium sesquioxide sand, and the blast of blast is 0.1～0.2MPa, and the time of each used in wet sandblasting of blades is 5～8s.In the present embodiment, the time of each used in wet sandblasting of blades is 5s, and the blast of blast is 0.1MPa
Step 2, the residual sand grains of cleaning blade inner chamber.4 air inlet ports 6 that compressed air outlet port is aimed on the blade 1 blow 15s, and the sand grains that the blade inner chamber is residual blows out.
Step 3, cleaning blade.Blade 1 is placed in the Ultrasonic Cleaners, with sand grains and other dirts of acetone and alcohol wash blade 1 inner chamber and outside surface, guarantees that blade 1 surface is without dirt.In the present embodiment, clean with acetone.Scavenging period is 60min.
Step 4, the heating blade.Blade 1 is heated to 160～200 ℃ in being placed on process furnace, insulation 30～40min, abundant dry blade 1 inner chamber and outside surface.In the present embodiment, Heating temperature is 160 ℃, and soaking time is 30min.
Step 5, the protection blade tenon.Aluminium sesquioxide cotton 3 is twined three layers along four outside surfaces of blade tenon 2, and cotton four intimate with blade tenon 2 of described aluminium sesquioxide are fitted.The Al2O3 content of described aluminium sesquioxide cotton 3 is 80%.The aluminium sesquioxide cotton that will be wrapped on the blade tenon with two metal clips 4 clamps, and it is cotton to remove the aluminium sesquioxide that leaks outside described metal clip, exposes to be positioned at the enterprising pore 6 of blade tenon top end face.And the blade tenon that will be wound with the aluminium sesquioxide cotton together puts into metal protection protector 7 together with metal clip, utilizes the inclined-plane of blade 1 own wt and metal protection protector 7 that metal clip 4 and blade tenon 2 are fixed.
Described metal clip comprises two " recessed " font clamping plate that cooperatively interact.The shape of one side surface of two clamping plates matches with the profile of a part of tenon tooth of blade tenon respectively; The opposite side surface of two clamping plates is the inclined-plane.During use, two clamping plates is cooperated with the outside surface of blade tenon is nested respectively, make described two clamping plates form a complete clip, described blade tenon is clipped in the two clamping plates.The profile of the metal clip after cooperatively interacting is parallelogram.Described metal clip is made with the GH39 of superalloy.
The GH39 of described metal protection protector 7 usefulness superalloys makes.This metal protection protector is mount structure, and its cross section is the parallelogram that cooperates with the metal clip profile.One end of metal protection protector 7 has end plate, and the surface that this end plate is positioned at metal protection protector is step-like, and the surface of this step is the placed side of metal clip.The airflow hole that perforation is arranged at the geometric centre center of described end plate.Described airflow hole is strip, and its length must make this airflow hole be communicated with 4 air inlet ports that are positioned at blade tenon top end face with width.There are two angles of end plate one end to be symmetrically distributed with pin-and-hole at described metal protection protector, are used for this metal protection protector and base plate are connected.
Step 6 is installed metal protection protector.By the steady brace 9 on the base plate 8 metal protection protector 7 and base plate 8 are fixed.The profile of described base plate 8 also is parallelogram; The geometric centre of base plate 8 has the communicating pores of rectangle, and the position of the airflow hole on the position of this communicating pores and metal protection protector 7 end plates is corresponding.Open holes is arranged respectively on the symmetric angle of base plate 8.
Step 7, the gas aluminising.Add 50% ferro-aluminum powder, 50% aluminium silica flour and added the penetration enhancer of 10% four ammonium chlorides of total amount in ball mill, mixed 2 hours, penetration enhancer is mixed, described penetration enhancer per-cent all is weight percentage; The ferro-aluminum powder, aluminium silica flour and four ammonium chlorides that mix are put into the aluminising dish, again the aluminising dish is put into aluminizing furnace; The protector that has loaded blade 1 is put into aluminizing furnace, adopt ordinary method to carry out 1050 ℃, be incubated 4 hours gas aluminising.
Step 8, the blade tenon antiseepage detects.From the test block of blade tenon cutting metallographic, with the blade tenon thickness after the aluminising of metallographic method detected gas, detected result sees the following form.
The antiseepage conclusion: the anti-seepage method in the present embodiment 1 can play anti-seepage effect, guarantees that the blade tenon alloying layer thickness is at 0～5 micron.
Embodiment 2
Present embodiment is a kind of Turbine Blade Fir Tree Roots anti-seepage method, and detailed process is:
Dirt in the step 1, cleaning blade.The sand export of sandblast machine is aimed at 4 air inlet ports 6 on the blade 1 tenon top end face, to the blade 1 inner chamber blast that wet, with greasy dirt or other dirts of removal blade 1 inner chamber.The sand that uses during described blast is 150 purpose aluminium sesquioxide sand, and the blast of blast is 0.1～0.2MPa, and the time of each used in wet sandblasting of blades is 5～8s.In the present embodiment, the time of each used in wet sandblasting of blades is 7s, and the blast of blast is 0.15MPa
Step 2, the residual sand grains of cleaning blade inner chamber.4 air inlet ports 6 that compressed air outlet port is aimed on the blade 1 blow 15s, and the sand grains that the blade inner chamber is residual blows out.
Step 3, cleaning blade.Blade 1 is placed in the Ultrasonic Cleaners, with sand grains and other dirts of acetone and alcohol wash blade 1 inner chamber and outside surface, guarantees that blade 1 surface is without dirt.In the present embodiment, clean with acetone.Scavenging period is 60min.
Step 4, the heating blade.Blade 1 is heated to 160～200 ℃ in being placed on process furnace, insulation 30～40min, abundant dry blade 1 inner chamber and outside surface.In the present embodiment, Heating temperature is 180 ℃, and soaking time is 35min.
Step 5, the protection blade tenon.Aluminium sesquioxide cotton 3 is twined three layers along four outside surfaces of blade tenon 2, and cotton four intimate with blade tenon 2 of described aluminium sesquioxide are fitted.The Al of described aluminium sesquioxide cotton 3 2O 3Content is 80%.The aluminium sesquioxide cotton that will be wrapped on the blade tenon with two metal clips 4 clamps, and it is cotton to remove the aluminium sesquioxide that leaks outside described metal clip, exposes to be positioned at the enterprising pore 6 of blade tenon top end face.And the blade tenon that will be wound with the aluminium sesquioxide cotton together puts into metal protection protector 7 together with metal clip, utilizes the inclined-plane of blade 1 own wt and metal protection protector 7 that metal clip 4 and blade tenon 2 are fixed.
Described metal clip comprises two " recessed " font clamping plate that cooperatively interact.The shape of one side surface of two clamping plates matches with the profile of a part of tenon tooth of blade tenon respectively; The opposite side surface of two clamping plates is the inclined-plane.During use, two clamping plates is cooperated with the outside surface of blade tenon is nested respectively, make described two clamping plates form a complete clip, described blade tenon is clipped in the two clamping plates.The profile of the metal clip after cooperatively interacting is parallelogram.Described metal clip is made with the GH39 of superalloy.
The GH39 of described metal protection protector 7 usefulness superalloys makes.This metal protection protector is mount structure, and its cross section is the parallelogram that cooperates with the metal clip profile.One end of metal protection protector 7 has end plate, and the surface that this end plate is positioned at metal protection protector is step-like, and the surface of this step is the placed side of metal clip.The airflow hole that perforation is arranged at the geometric centre center of described end plate.Described airflow hole is strip, and its length must make this airflow hole be communicated with 4 air inlet ports that are positioned at blade tenon top end face with width.There are two angles of end plate one end to be symmetrically distributed with pin-and-hole at described metal protection protector, are used for this metal protection protector and base plate are connected.
Step 6 is installed metal protection protector.By the steady brace 9 on the base plate 8 metal protection protector 7 and base plate 8 are fixed.The profile of described base plate 8 also is parallelogram; The geometric centre of base plate 8 has the communicating pores of rectangle, and the position of the airflow hole on the position of this communicating pores and metal protection protector 7 end plates is corresponding.Open holes is arranged respectively on the symmetric angle of base plate 8.
Step 7, the gas aluminising.Add 50% ferro-aluminum powder, 50% aluminium silica flour and added the penetration enhancer of 10% four ammonium chlorides of total amount in ball mill, mixed 2 hours, penetration enhancer is mixed, described penetration enhancer per-cent all is weight percentage; The ferro-aluminum powder, aluminium silica flour and four ammonium chlorides that mix are put into the aluminising dish, again the aluminising dish is put into aluminizing furnace; The protector that has loaded blade 1 is put into aluminizing furnace, adopt ordinary method to carry out 1050 ℃, be incubated 4 hours gas aluminising.
Step 8, the blade tenon antiseepage detects.From the test block of blade tenon cutting metallographic, with the blade tenon thickness after the aluminising of metallographic method detected gas, detected result sees the following form.
The antiseepage conclusion: the anti-seepage method in the present embodiment 2 can play anti-seepage effect, guarantees that the blade tenon alloying layer thickness is at 0～5 micron.
Embodiment 3
Present embodiment is a kind of Turbine Blade Fir Tree Roots anti-seepage method, and detailed process is:
Dirt in the step 1, cleaning blade.The sand export of sandblast machine is aimed at 4 air inlet ports 6 on the blade 1 tenon top end face, to the blade 1 inner chamber blast that wet, with greasy dirt or other dirts of removal blade 1 inner chamber.The sand that uses during described blast is 150 purpose aluminium sesquioxide sand, and the blast of blast is 0.1～0.2MPa, and the time of each used in wet sandblasting of blades is 5～8s.In the present embodiment, the time of each used in wet sandblasting of blades is 8s, and the blast of blast is 0.2MPa
Step 2, the residual sand grains of cleaning blade inner chamber.4 air inlet ports 6 that compressed air outlet port is aimed on the blade 1 blow 15s, and the sand grains that the blade inner chamber is residual blows out.
Step 3, cleaning blade.Blade 1 is placed in the Ultrasonic Cleaners, with sand grains and other dirts of acetone and alcohol wash blade 1 inner chamber and outside surface, guarantees that blade 1 surface is without dirt.In the present embodiment, clean with acetone.Scavenging period is 60min.
Step 4, the heating blade.Blade 1 is heated to 160～200 ℃ in being placed on process furnace, insulation 30～40min, abundant dry blade 1 inner chamber and outside surface.In the present embodiment, Heating temperature is 200 ℃, and soaking time is 40min.
Step 5, the protection blade tenon.Aluminium sesquioxide cotton 3 is twined three layers along four outside surfaces of blade tenon 2, and cotton four intimate with blade tenon 2 of described aluminium sesquioxide are fitted.The Al of described aluminium sesquioxide cotton 3 2O 3Content is 80%.The aluminium sesquioxide cotton that will be wrapped on the blade tenon with two metal clips 4 clamps, and it is cotton to remove the aluminium sesquioxide that leaks outside described metal clip, exposes to be positioned at the enterprising pore 6 of blade tenon top end face.And the blade tenon that will be wound with the aluminium sesquioxide cotton together puts into metal protection protector 7 together with metal clip, utilizes the inclined-plane of blade 1 own wt and metal protection protector 7 that metal clip 4 and blade tenon 2 are fixed.
Described metal clip comprises two " recessed " font clamping plate that cooperatively interact.The shape of one side surface of two clamping plates matches with the profile of a part of tenon tooth of blade tenon respectively; The opposite side surface of two clamping plates is the inclined-plane.During use, two clamping plates is cooperated with the outside surface of blade tenon is nested respectively, make described two clamping plates form a complete clip, described blade tenon is clipped in the two clamping plates.The profile of the metal clip after cooperatively interacting is parallelogram.Described metal clip is made with the GH39 of superalloy.
The GH39 of described metal protection protector 7 usefulness superalloys makes.This metal protection protector is mount structure, and its cross section is the parallelogram that cooperates with the metal clip profile.One end of metal protection protector 7 has end plate, and the surface that this end plate is positioned at metal protection protector is step-like, and the surface of this step is the placed side of metal clip.The airflow hole that perforation is arranged at the geometric centre center of described end plate.Described airflow hole is strip, and its length must make this airflow hole be communicated with 4 air inlet ports that are positioned at blade tenon top end face with width.There are two angles of end plate one end to be symmetrically distributed with pin-and-hole at described metal protection protector, are used for this metal protection protector and base plate are connected.
Step 6 is installed metal protection protector.By the steady brace 9 on the base plate 8 metal protection protector 7 and base plate 8 are fixed.The profile of described base plate 8 also is parallelogram; The geometric centre of base plate 8 has the communicating pores of rectangle, and the position of the airflow hole on the position of this communicating pores and metal protection protector 7 end plates is corresponding.Open holes is arranged respectively on the symmetric angle of base plate 8.
Step 7, the gas aluminising.Add 50% ferro-aluminum powder, 50% aluminium silica flour and added the penetration enhancer of 10% four ammonium chlorides of total amount in ball mill, mixed 2 hours, penetration enhancer is mixed, described penetration enhancer per-cent all is weight percentage; The ferro-aluminum powder, aluminium silica flour and four ammonium chlorides that mix are put into the aluminising dish, again the aluminising dish is put into aluminizing furnace; The protector that has loaded blade 1 is put into aluminizing furnace, adopt ordinary method to carry out 1050 ℃, be incubated 4 hours gas aluminising.
Step 8, the blade tenon antiseepage detects.From the test block of blade tenon cutting metallographic, with the blade tenon thickness after the aluminising of metallographic method detected gas, detected result sees the following form.
The antiseepage conclusion: the anti-seepage method in the present embodiment 3 can play anti-seepage effect, guarantees that the blade tenon alloying layer thickness is at 0～5 micron.

Claims (4)

1. Turbine Blade Fir Tree Roots anti-seepage method is characterized in that detailed process is:
Dirt in the step 1, cleaning blade; The sand export of sandblast machine is aimed at 4 air inlet ports on the end face of blade tenon top, to the blade inner chamber blast that wet, with greasy dirt or other dirts of removal blade inner chamber; The blast of blast is 0.1～0.2MPa, and the time of each used in wet sandblasting of blades is 5～8s;
Step 2, the residual sand grains of cleaning blade inner chamber; The sand grains blade inner chamber is residual by pressurized air blows out;
Step 3, cleaning blade; Sand grains and other dirts with acetone and alcohol wash blade inner chamber and outside surface;
Step 4, the heating blade; Blade is heated to 160～200 ℃ in process furnace, insulation 30～40min;
Step 5, the protection blade tenon; Twine with the outside surface of aluminium sesquioxide cotton with blade tenon, and cotton four intimate with blade tenon of described aluminium sesquioxide are fitted; The Al of described aluminium sesquioxide cotton 2O 3Content is 80%; The aluminium sesquioxide cotton that will be wrapped on the blade tenon with two metal clips clamps; And the blade tenon that will be wound with the aluminium sesquioxide cotton is together put into protective sleeve together with metal clip;
Step 6 is installed protective sleeve; By the steady brace on the base plate protective sleeve and base plate are fixed;
Step 7, the gas aluminising; Add 50% ferro-aluminum powder, 50% aluminium silica flour and added the penetration enhancer of 10% four ammonium chlorides of total amount in ball mill, mixed 2 hours, penetration enhancer is mixed, described penetration enhancer per-cent all is weight percentage; The ferro-aluminum powder, pure aluminium powder and four ammonium chlorides that mix are put into the aluminising dish, again the aluminising dish is put into aluminizing furnace; The protector that has loaded blade is put into aluminizing furnace, adopt ordinary method to carry out 1050 ℃, be incubated 4 hours gas aluminising.
2. Turbine Blade Fir Tree Roots anti-seepage method as claimed in claim 1 is characterized in that the profile of described base plate is parallelogram; The geometric centre of base plate has communicating pores, and the position of the airflow hole on the position of this communicating pores and the protective sleeve end plate is corresponding; Open holes is arranged respectively on the symmetric angle of base plate.
3. a metal clip that is used for the described Turbine Blade Fir Tree Roots anti-seepage method of claim 1 is characterized in that described metal clip comprises two " recessed " font clamping plate that cooperatively interact; The shape of one side surface of two clamping plates matches with the profile of a part of tenon tooth of blade tenon respectively; The opposite side surface of two clamping plates is the inclined-plane, and the profile that makes the metal clip after cooperatively interacting is parallelogram.
4. a protective sleeve that is used for the described Turbine Blade Fir Tree Roots anti-seepage method of claim 1 is characterized in that described protective sleeve is mount structure, and its cross section is the parallelogram that cooperates with the metal clip profile; One end of protective sleeve has end plate, and there is the placed side of metal clip on the surface that this end plate is positioned at protective sleeve; The airflow hole that perforation is arranged in the geometric centre of described end plate; Described airflow hole is strip, and its length must make this airflow hole be communicated with 4 air inlet ports that are positioned at blade tenon top end face with width; There are two angles of end plate one end to be symmetrically distributed with the connection pin-and-hole at described protective sleeve.
CN201210473320.XA 2012-11-20 2012-11-20 Seepage prevention method for aerial engine blade rabbet Active CN102978565B (en)

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103817499A (en) * 2013-11-01 2014-05-28 西安航空动力股份有限公司 Method for preventing tenon tooth leakage of turbine blade
CN104324923A (en) * 2014-09-26 2015-02-04 中国工程物理研究院激光聚变研究中心 Cleaning and clamping device
CN105887009A (en) * 2016-06-11 2016-08-24 芜湖众源复合新材料有限公司 Multi-component alloy co-permeation treatment process for anti-falling beam embedded plates
CN106346369A (en) * 2016-09-30 2017-01-25 中国南方航空工业(集团)有限公司 Differential pressure sand blasting method of hollow porous blade and clamp
CN106391551A (en) * 2016-08-26 2017-02-15 中航动力股份有限公司 Post-cleaning device and method for penetrant testing of hollow turbine blades
CN106637068A (en) * 2016-12-20 2017-05-10 四川成发航空科技股份有限公司 Anti-percolator for tenons of guide blades of aeronautic engine
CN109338284A (en) * 2018-08-08 2019-02-15 沈阳梅特科航空科技有限公司 Aluminising protective coating and its preparation method and application method
CN111673899A (en) * 2020-06-18 2020-09-18 远科秦皇岛节能环保科技开发有限公司 Protection method for gas turbine blade tenon
CN112159954A (en) * 2020-10-29 2021-01-01 中国航发南方工业有限公司 Aluminizing agent and application thereof
CN112430802A (en) * 2020-10-09 2021-03-02 北京航空航天大学 Method and device for cleaning fluorine ions of blades with complex inner cavities and preparing aluminide coatings
CN115491634A (en) * 2022-09-20 2022-12-20 国营川西机器厂 Device for preparing aluminized layer in inner cavity of blade of aero-engine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102367565A (en) * 2011-11-04 2012-03-07 西安航空动力股份有限公司 Gas-phase aluminum-silicon diffusion agent used on complicated inner cavity blades, and application method thereof

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102367565A (en) * 2011-11-04 2012-03-07 西安航空动力股份有限公司 Gas-phase aluminum-silicon diffusion agent used on complicated inner cavity blades, and application method thereof

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
蔡煜: "用于固渗法渗铝的防渗铝涂料", 《航空制造技术》 *
邹月荭: "防渗铬、铝涂料的研究", 《材料保护》 *

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CN103817499A (en) * 2013-11-01 2014-05-28 西安航空动力股份有限公司 Method for preventing tenon tooth leakage of turbine blade
CN104324923A (en) * 2014-09-26 2015-02-04 中国工程物理研究院激光聚变研究中心 Cleaning and clamping device
CN104324923B (en) * 2014-09-26 2016-06-08 中国工程物理研究院激光聚变研究中心 A kind of cleaning clamping device
CN105887009B (en) * 2016-06-11 2017-11-07 芜湖众源复合新材料有限公司 A kind of girder falling embedded board multi-component alloy co-cementation handling process
CN105887009A (en) * 2016-06-11 2016-08-24 芜湖众源复合新材料有限公司 Multi-component alloy co-permeation treatment process for anti-falling beam embedded plates
CN106391551A (en) * 2016-08-26 2017-02-15 中航动力股份有限公司 Post-cleaning device and method for penetrant testing of hollow turbine blades
CN106391551B (en) * 2016-08-26 2019-02-01 中航动力股份有限公司 A kind of rear cleaning device and method of hollow turbine vane Liquid penetrant testing
CN106346369A (en) * 2016-09-30 2017-01-25 中国南方航空工业(集团)有限公司 Differential pressure sand blasting method of hollow porous blade and clamp
CN106637068B (en) * 2016-12-20 2018-11-27 四川成发航空科技股份有限公司 A kind of aero-engine guide vane tenon percolator
CN106637068A (en) * 2016-12-20 2017-05-10 四川成发航空科技股份有限公司 Anti-percolator for tenons of guide blades of aeronautic engine
CN109338284A (en) * 2018-08-08 2019-02-15 沈阳梅特科航空科技有限公司 Aluminising protective coating and its preparation method and application method
CN109338284B (en) * 2018-08-08 2020-11-17 沈阳梅特科航空科技有限公司 Aluminized protective coating and preparation method and application method thereof
CN111673899A (en) * 2020-06-18 2020-09-18 远科秦皇岛节能环保科技开发有限公司 Protection method for gas turbine blade tenon
CN111673899B (en) * 2020-06-18 2022-01-25 远科秦皇岛节能环保科技开发有限公司 Protection method for gas turbine blade tenon
CN112430802A (en) * 2020-10-09 2021-03-02 北京航空航天大学 Method and device for cleaning fluorine ions of blades with complex inner cavities and preparing aluminide coatings
CN112430802B (en) * 2020-10-09 2022-02-08 北京航空航天大学 Method and device for cleaning fluorine ions of blades with complex inner cavities and preparing aluminide coatings
CN112159954A (en) * 2020-10-29 2021-01-01 中国航发南方工业有限公司 Aluminizing agent and application thereof
CN112159954B (en) * 2020-10-29 2022-10-18 中国航发南方工业有限公司 Aluminizing agent and application thereof
CN115491634A (en) * 2022-09-20 2022-12-20 国营川西机器厂 Device for preparing aluminized layer in inner cavity of blade of aero-engine

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