CN108544074A - A kind of high temperature alloy and oxygen-free copper annular element diffusion connection method - Google Patents
A kind of high temperature alloy and oxygen-free copper annular element diffusion connection method Download PDFInfo
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- CN108544074A CN108544074A CN201810358016.8A CN201810358016A CN108544074A CN 108544074 A CN108544074 A CN 108544074A CN 201810358016 A CN201810358016 A CN 201810358016A CN 108544074 A CN108544074 A CN 108544074A
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- Prior art keywords
- oxygen
- high temperature
- free copper
- temperature alloy
- connector
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/02—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating by means of a press ; Diffusion bonding
- B23K20/021—Isostatic pressure welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K15/00—Electron-beam welding or cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/02—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating by means of a press ; Diffusion bonding
- B23K20/023—Thermo-compression bonding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/24—Preliminary treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K28/00—Welding or cutting not covered by any of the preceding groups, e.g. electrolytic welding
- B23K28/02—Combined welding or cutting procedures or apparatus
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The present invention proposes a kind of high temperature alloy and oxygen-free copper annular element diffusion connection method.This method includes the preparation of annular element, the preparation of jacket, assembly, hot isostatic pressing pre-treatment, hot isostatic pressing control and post-processing.A kind of high temperature alloy proposed by the present invention and oxygen-free copper annular element diffusion connection method are to take hot isostatic pressing Diffusion bonding techniques, oxygen-free copper is set to be connected at diffusion with superalloy annular part hair under high temperature and high pressure environment, forming high temperature alloy and oxygen-free copper circular connector.The problem of this method is effectively prevented from articulamentum peeling, chip off-falling, layering and is detached with matrix, reduces connection layer porosity, realizes good metallurgical binding.
Description
Technical field
The invention belongs to aerospace manufacturing fields, spread connection side more particularly to high temperature alloy and oxygen-free copper annular element
Face.
Background technology
There is high temperature alloy excellent elevated temperature strength, good anti-oxidant, corrosion and heat resistant creep resistant, fatigue behaviour, to break
The comprehensive performances such as toughness are split, aerospace field is widely used in.In recent years, domestic that low-expansion high temperature has largely been selected to close
Gold, for making the annular parts of turbogenerator, as high-pressure compressor rear housing, force bearing ring, heat insulation loop, combustion chamber are obturaged
Ring, honeycomb seat and turbine outer ring etc.；And rocket engine thrust chamber, exhaust manifolds and manifold etc..
When high temperature alloy and oxygen-free copper carry out dissimilar material joining, using traditional welding, soldering, direct diffusion welding (DW) side
Method, there are articulamentum peeling, chip off-falling, layering and with matrix separation problem, and connect layer porosity it is higher.
Hot isostatic pressing Diffusion bonding techniques, be under the action of high temperature, high pressure, be connected material atom fast move,
Phase counterdiffusion, final material is in intimate surface contact, the technique that links together in the solid state.Compared to traditional welding, pricker
The technologies such as weldering, the technology have that bonding strength is high, microstructure is complete, torsion resistance is small, can realize connection between different materials
The advantages that.Since interface does not generate liquid phase, interface bond strength is identical as base material, it can be achieved that good metallurgical binding.
Invention content
Here, set forth herein a kind of high temperature alloy and oxygen-free copper hot isostatic pressing diffusion connection method, solve the above problems.This
It includes the following steps carried out in order to invent the high temperature alloy provided and oxygen-free copper annular element diffusion connection method：
1) superalloy annular part is prepared.Height is prepared according to the structure feature of high temperature alloy and oxygen-free copper circular connector
Temperature alloy annular element.
2) oxygen-free copper jacket is prepared.It is designed according to oxygen-free copper layer thickness and connector shape and processes rational oxygen-free copper
Jacket, the jacket include top plate and U-shaped tube body, and jacket thickness reserves certain allowance compared with connector copper layer thickness.To ensure
Connector dimensional accuracy, U-shaped tube body meet clearance fit on the basis of superalloy annular part size.That is U-shaped tube body and high temperature
Alloy annular part internal diameter and outer diameter contact face reserve certain interval.Top plate and the assembly of U-shaped tube body, meet clearance fit.
3) it is assembled.Superalloy annular part is fitted into U-shaped tube body, then by top plate assembly on U-shaped tube body.
4) vacuum processing and soldering and sealing.After assembly, soldering and sealing is carried out using electron-bombardment welding.
5) hot isostatic pressing diffusion connection.The good jacket of above-mentioned soldering and sealing is put into hot isostatic apparatus, in high temperature and high pressure environment
Under, make oxygen-free copper jacket that diffusion connection occur with superalloy annular part, generates the semi-finished product of connector.
6) post-production.Using the method for mechanical processing, extra oxygen-free copper is removed, obtains high temperature alloy and oxygen-free copper annular
Connector.
7) in the step 1, superalloy annular part material is GH907, is prepared using mechanical processing, surface is polished
Processing, and acetone ultrasonic cleaning is carried out to surface.
8) in the step 2, the top plate and U-shaped tube body of jacket are prepared using mechanical processing, are connect with high temperature alloy part surface
Contacting surface is processed by shot blasting, and carries out acetone ultrasonic cleaning.
9) in the step 4, the vacuum degree of vacuum electron beam soldering and sealing is 10-3Pa or more.
10) in the step 5, when hip treatment, make in 2 hours the pressure of hot isostatic apparatus reach 100~
120MPa；Temperature is warming up to 620~700 DEG C in 2 hours again；Heat-insulation pressure keeping 2~3 hours；Temperature is dropped through 6 hours or more
To room temperature, finally it is depressured again.
11) high temperature alloy provided by the invention and oxygen-free copper annular element diffusion connection method are by hot isostatic pressing technique pair
Superalloy annular part diffusion into the surface connects one layer of oxygen-free copper layer.This method can preferably realize high temperature alloy and oxygen-free copper
Connection, avoid articulamentum peeling, chip off-falling, layering and detached with matrix, connection layer porosity it is relatively low.Also, copper layer thickness can
To change, its scope of application is increased.
Description of the drawings
Fig. 1 for using institute when high temperature alloy provided by the invention and oxygen-free copper annular element hot isostatic pressing diffusion connection method at
The structural schematic diagram of the connector A of shape.
Fig. 2 for using institute when high temperature alloy provided by the invention and oxygen-free copper annular element hot isostatic pressing diffusion connection method at
The structural schematic diagram of the connector B of shape.
Fig. 3 is using high temperature alloy provided by the invention and jacket when oxygen-free copper annular element hot isostatic pressing diffusion connection method
Top plate, U-shaped tube body structural schematic diagram.
Fig. 4 is to be assembled when using high temperature alloy provided by the invention with oxygen-free copper annular element hot isostatic pressing diffusion connection method
Structural schematic diagram afterwards.
Fig. 5 is using high temperature alloy provided by the invention and heat when oxygen-free copper annular element hot isostatic pressing diffusion connection method etc.
The structural schematic diagram of superalloy annular part part semi-finished product after static pressure forming.
Specific implementation mode
High temperature alloy provided by the invention and the diffusion of oxygen-free copper annular element are connected with specific example below in conjunction with the accompanying drawings
Method is described in detail.
As Figure 1-Figure 5, high temperature alloy provided by the invention includes with oxygen-free copper annular element diffusion connection method
The following steps carried out in order：
1) high temperature alloy ring is prepared according to the structure feature of high temperature alloy and oxygen-free copper circular connector 4 and connector 5
Shape part 3.The material of superalloy annular part 3 is GH907, is prepared using mechanical processing, and surface is processed by shot blasting, and to surface
Carry out acetone ultrasonic cleaning.
2) it is designed according to oxygen-free copper layer thickness and connector shape and processes rational oxygen-free copper jacket, which includes
Top plate 1 and U-shaped tube body 2, jacket thickness should increase certain allowance on the basis of shaping the thickness of connector.To ensure to connect
Part dimensional accuracy, U-shaped tube body 2 meet clearance fit on the basis of 3 size of superalloy annular part.That is U-shaped tube body 2 and high temperature
3 internal diameter of alloy annular part and outer diameter contact face reserve certain interval.Top plate 1 and U-shaped tube body 2 assemble, and meet clearance fit.Top plate
1 and U-shaped tube body 2, it is prepared using mechanical processing, is processed by shot blasting with high-temperature alloy surface contact surface, and carry out acetone ultrasound
Cleaning.
3) it is assembled, superalloy annular part 3 is fitted into U-shaped tube body 2, then top plate 1 is assembled in U-shaped tube body 2
On.
4) electron-bombardment welding is used to carry out soldering and sealing, internal vacuum degree need to be 10-3Pa or more.
5) it puts the good jacket of above-mentioned soldering and sealing into hot isostatic apparatus, carries out hip treatment.In high temperature and high pressure environment
Under, make oxygen-free copper jacket that diffusion connection occur with superalloy annular part 3, generates the semi-finished product 6 of connector.Make in 2 hours
The pressure of hot isostatic apparatus reaches 100~120MPa；Temperature is warming up to 620~700 DEG C in 2 hours again；Heat-insulation pressure keeping 2
~3 hours；Room temperature was reduced the temperature to through 6 hours or more, is finally depressured again.
6) by the method for mechanical processing, remove extra oxygen-free copper, obtain high temperature alloy and oxygen-free copper circular connector 4 and
Connector 5.
7) according to being formed by the difference of high temperature alloy and oxygen-free copper circular connector shape and feature, corresponding top plate 1,
The shape of U-shaped tube part 2 and superalloy annular part 3 is also different, and the treatment conditions of hot isostatic pressing will be according to high temperature alloy, jacket material
The shape of material and connector is adjusted correspondingly.
Claims (5)
1. a kind of high temperature alloy and oxygen-free copper annular element diffusion connection method, it is characterised in that：A kind of high temperature alloy with
Oxygen-free copper annular element diffusion connection method includes the following steps carried out in order：
1) high temperature alloy ring is prepared according to the structure feature of high temperature alloy and oxygen-free copper circular connector (4) and connector (5)
Shape part (3).
2) oxygen-free copper jacket is designed and processed according to oxygen-free copper layer thickness and connector shape, which includes top plate (1) and U
Shape cylinder (2), jacket thickness should increase certain allowance on the basis of shaping the thickness of connector.
3) superalloy annular part (3) is fitted into U-shaped tube body (2), then top plate (1) is assemblied on U-shaped tube body (2).
4) after assembling, soldering and sealing is carried out using electron-bombardment welding.
5) it puts the good jacket of above-mentioned soldering and sealing into hot isostatic apparatus, under high temperature and high pressure environment, makes oxygen-free copper jacket and high temperature
Diffusion connection occurs for alloy annular part (3), generates the semi-finished product (6) of connector.
6) using the method for mechanical processing, extra oxygen-free copper is removed, obtain high temperature alloy and oxygen-free copper circular connector (4) and is connected
Fitting (5).
2. superalloy annular part material described in claim 1 is GH907, prepared using mechanical processing, surface is polished
Processing, and acetone ultrasonic cleaning is carried out to surface.
3. when the top plate and U-shaped barrel designs of jacket described in claim 1, to ensure connector dimensional accuracy, U-shaped tube body with
On the basis of superalloy annular part size, meet clearance fit.That is U-shaped tube body and superalloy annular part internal diameter and outer diameter contact
Face reserves certain interval.Top plate and the assembly of U-shaped tube body, meet clearance fit.It is prepared using mechanical processing, with high temperature alloy part table
Face contact surface is processed by shot blasting, and carries out acetone ultrasonic cleaning.
4. the vacuum degree of vacuum electron beam soldering and sealing described in claim 1 is 10-3Pa or more.
5. when hip treatment according to claim 1, the pressure of hot isostatic apparatus is made to reach 100 in 2 hours
~120MPa；Temperature is warming up to 600~700 DEG C in 2 hours again；Heat-insulation pressure keeping 2~3 hours；Through 6 hours or more by temperature
Room temperature is dropped to, is finally depressured again.
Priority Applications (1)
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|---|---|---|---|
| CN201810358016.8A CN108544074A (en) | 2018-04-20 | 2018-04-20 | A kind of high temperature alloy and oxygen-free copper annular element diffusion connection method |
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| CN201810358016.8A CN108544074A (en) | 2018-04-20 | 2018-04-20 | A kind of high temperature alloy and oxygen-free copper annular element diffusion connection method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109277575A (en) * | 2018-10-31 | 2019-01-29 | 北京航空航天大学 | Jacket is used in a kind of forming of annular element hot isostatic pressing |
| CN109290580A (en) * | 2018-11-07 | 2019-02-01 | 北京航空航天大学 | A kind of nickel base superalloy annular element method in conjunction with the solid powder of copper zinc-aluminium powder |
| CN109676234A (en) * | 2019-02-26 | 2019-04-26 | 北京航空航天大学 | A kind of method of nickel base superalloy annular element local diffusion connection Kufil |
| CN109759793A (en) * | 2019-02-26 | 2019-05-17 | 北京航空航天大学 | A kind of method that superalloy annular part is solidly connected forming with cu-ag alloy powders |
| CN113385893A (en) * | 2021-06-10 | 2021-09-14 | 中国科学院近代物理研究所 | Preparation method of niobium-copper composite part |
| CN113510445A (en) * | 2021-06-10 | 2021-10-19 | 中国科学院近代物理研究所 | Preparation method of niobium steel composite component |
| CN113864055A (en) * | 2021-10-22 | 2021-12-31 | 中国航发沈阳发动机研究所 | Engine air inlet casing frame and welding method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109277575A (en) * | 2018-10-31 | 2019-01-29 | 北京航空航天大学 | Jacket is used in a kind of forming of annular element hot isostatic pressing |
| CN109290580A (en) * | 2018-11-07 | 2019-02-01 | 北京航空航天大学 | A kind of nickel base superalloy annular element method in conjunction with the solid powder of copper zinc-aluminium powder |
| CN109676234A (en) * | 2019-02-26 | 2019-04-26 | 北京航空航天大学 | A kind of method of nickel base superalloy annular element local diffusion connection Kufil |
| CN109759793A (en) * | 2019-02-26 | 2019-05-17 | 北京航空航天大学 | A kind of method that superalloy annular part is solidly connected forming with cu-ag alloy powders |
| CN113385893A (en) * | 2021-06-10 | 2021-09-14 | 中国科学院近代物理研究所 | Preparation method of niobium-copper composite part |
| CN113510445A (en) * | 2021-06-10 | 2021-10-19 | 中国科学院近代物理研究所 | Preparation method of niobium steel composite component |
| CN113864055A (en) * | 2021-10-22 | 2021-12-31 | 中国航发沈阳发动机研究所 | Engine air inlet casing frame and welding method thereof |
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Application publication date: 20180918 |