CN105562869B - One kind uses the solder brazing Ti of BNi 22The method of AlC ceramics and metallic nickel or nickel alloy - Google Patents
One kind uses the solder brazing Ti of BNi 22The method of AlC ceramics and metallic nickel or nickel alloy Download PDFInfo
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- CN105562869B CN105562869B CN201610124891.0A CN201610124891A CN105562869B CN 105562869 B CN105562869 B CN 105562869B CN 201610124891 A CN201610124891 A CN 201610124891A CN 105562869 B CN105562869 B CN 105562869B
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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
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/008—Soldering within a furnace
-
- 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
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/0008—Soldering, e.g. brazing, or unsoldering specially adapted for particular articles or work
-
- 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
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/20—Preliminary treatment of work or areas to be soldered, e.g. in respect of a galvanic coating
-
- 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
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/20—Preliminary treatment of work or areas to be soldered, e.g. in respect of a galvanic coating
- B23K1/206—Cleaning
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Abstract
One kind uses the solder brazing Ti of BNi 22The method of AlC ceramics and metallic nickel or nickel alloy, is related to a kind of soldering Ti2The method of AlC ceramics and metallic nickel or nickel alloy.The present invention is to solve current Ti2AlC ceramics are easily decomposed in brazing process, the technical problem of poor reliability when welding structural element is on active service.The present invention：First, brazed coupon is prepared；2nd, soldering.Advantages of the present invention：The present invention improves soldering Ti2Reliability when AlC ceramics and metallic nickel or the military service of nickel alloy welding structural element, while being conducive to improving the mechanical behavior under high temperature and inoxidizability of joint using nickel-based high temperature solder, makes the welding structural element be expected to be used in high-temperature field.The present invention is applied to welding field.
Description
Technical field
The present invention relates to a kind of soldering Ti2The method of AlC ceramics and metallic nickel or nickel alloy.
Background technology
Material is one of three big pillars of modern social development, and its development at full speed and change are the weights of scientific and technological progress
Want motive force.Meanwhile, the progress of human society and science and technology also constantly proposes new requirement, traditional ferrous materials to material
New service condition and performance requirement can not have been met with nonferrous materials, has particularly been led in fast-developing space flight and aviation
Domain, it is more and more stronger to lightweight, high-strength and exotic material demand.In recent years, a kind of new double carbide or nitridation
Thing ceramics become the focus of numerous material science researchers.Jeitschko in 1963 et al. has synthesized a class first to be had
M2The ternary compound of AX chemical formulas, and determine its crystal structure.2000, Barsoum et al. was carried out to such compound
The elaboration of system, and it is defined as MAX phases：One class is thermodynamically stable, the double carbide with nanometer laminated structure
Or nitride.This kind of ceramics have the characteristic of many metals and ceramics concurrently, reduce the wide gap between metal and ceramics, overcome gold
Category and the respective limitation of ceramic material.
Compared with traditional high temperature alloy, MAX phase ceramics, the MAX phases especially containing Al have as high-temperature structural material
Unique advantage.With typical 211 phase Ti2Exemplified by AlC, its fusing point is up to 1600 DEG C, and under vacuum, Stability Analysis of Structures
Property can be maintained to 1400 DEG C.Compared with typical high temperature alloy, Ti2The density of AlC ceramics is 4.1g/cm3, only Ni-based height
The half of temperature alloy；Its thermal conductivity is 46Wm-1·K-1, it is four times of nickel base superalloy.In addition, Ti2AlC ceramics
Also have excellent mechanical behavior under high temperature, its it is high temperature compressed test result indicates that, ceramics room can be still kept more than 1200 DEG C
The modulus of elasticity of temperature, and its compression strength reaches 170MPa.Its thermal shock test result indicates that, as Δ T=1300K, matrix
Still maintain 75% intensity.At the same time, the presence of Al atoms imparts the excellent anti-oxidant and anti-atmosphere corrosion energy of ceramics
Power.Test result indicates that, Ti2The inverse of the cubic root of oxidation weight gains and oxidization time of the AlC between 1000-1300 DEG C is into just
Than at 1200 DEG C, its oxidation rate is only 1.1 × 10-10kg3·m-6·s-1.Meanwhile, aoxidize the α-Al of generation2O3Oxide-film
And Ti2AlC has approximate thermal coefficient of expansion, therefore Ti2The residual stress of AlC matrixes and oxide-film is small, and it circulates anti-oxidant energy
Power is also very excellent.Finally, although usual crackle is all fatal, but Ti for other ceramic materials2AlC ceramics not only exist
There is certain damage tolerance, at high temperature because the volume that oxidation reaction is brought increases effect, crackle also has certainly under normal temperature
Healing ability.As can be seen here, Ti2AlC ceramics are expected to the high-temperature structural material as a new generation, the height applied to aero-engine
Warm parts, gas nozzle, the clad material of thermal cycle frequent alternate calandria and atomic reactor.
It can be seen from isothermal section phasor of the Ti-Al-C ternary systems at 1300 DEG C, Ti2AlC respectively with TiCxAnd Ti-Al
Intermetallic compound is in ternary phase region, and single Ti2AlC phase regions are very narrow, and this causes in the Ti finally synthesized2AlC
Always there is TiC in ceramicsxDeng impurity, therefore current preparation method is not all suitable for synthesis large scale, the block of complicated shape
Body material.In order to overcome this bottleneck, Ti is realized2The soldering of AlC ceramics, the especially connection with nickel base superalloy is made
Ti2AlC-Ni composite components, can substantially reduce the proportion of component, improve temperature in use, improve corrosion resistance, preferably send out
Wave ceramics and the respective performance advantage of metal.Cut-off is to current, both at home and abroad on Ti2The reported in literature of AlC Ceramic brazings compares
It is few, and nickel-based high temperature solder soldering Ti is not used also2The related report of AlC ceramics.Current Ti2AlC ceramics are in soldering
During easily decompose, welding structural element be on active service when poor reliability.
The content of the invention
The present invention is to solve current Ti2AlC ceramics are easily decomposed in brazing process, welding structural element clothes
The technical problem of poor reliability during labour, and provide a kind of using BNi-2 solder brazings Ti2AlC ceramics and metallic nickel or nickel are closed
The method of gold.
The a kind of of the present invention uses BNi-2 solder brazings Ti2The method of AlC ceramics and metallic nickel or nickel alloy is by following
What step was carried out：
First, brazed coupon is prepared：Ti is prepared using the method for wire cutting2AlC ceramic blocks, then on pre-mill successively
Use 100#, 320#, 600#, 1000# and 1500# liquid honing Ti2The surface to be welded of AlC ceramic blocks, reuses particle
Spend and mechanically polished for 0.5 μm of diamond polishing agent to Ti2The surface to be welded of AlC ceramic blocks does not have cut, obtains Ti2AlC
Ceramic mother metal；
W metal block or Ni alloy blocks are prepared using the method for wire cutting, then successively using 200#, 500#,
1000# and 2000# abrasive paper for metallograph polishing W metal block or the surface to be welded of Ni alloy blocks, obtains W metal mother metal or Ni
Alloy mother metal；
By Ti2AlC ceramics mother metals and W metal mother metal or Ni alloy mother metals are put into acetone and are cleaned by ultrasonic 10min, then put
Enter and be cleaned by ultrasonic 10min in absolute ethyl alcohol, then air-dry, BNi-2 solder powders are adjusted to pasty state using organic binder bond, then
Equably smear Ti after cleaning2The Ni alloys after W metal mother metal or cleaning after AlC ceramics mother metal surfaces to be welded and cleaning
Mother metal surface to be welded, then sandwich structure is assembled into by intermediate layer form of solder layer, obtain part to be welded；Described organic binder bond
The mass ratio of volume and BNi-2 solder powders be 1mL:1.5g；
2nd, soldering：The part to be welded that step one is obtained is put in a mold, and then mould is placed in vacuum furnace, right
Part to be welded applies 5MPa~10MPa mechanical pressure, is then vacuumized, when the vacuum in stove is 10-3During Pa, in stove
Vacuum be 10-3Pa and part to be welded is applied in-furnace temperature under conditions of 5MPa~10MPa mechanical pressure from room temperature liter
Temperature is to 300 DEG C, and vacuum in stove is 10-3Pa, the mechanical pressure and in-furnace temperature for applying 5MPa~10MPa to part to be welded
To be incubated 10min-30min under conditions of 300 DEG C, the vacuum in stove is 10-3Pa and to part to be welded apply 5MPa~10MPa
Mechanical pressure under conditions of in-furnace temperature is warming up to 1000 DEG C~1100 DEG C from 300 DEG C, and the vacuum in stove is 10- 3Pa, mechanical pressure and in-furnace temperature to part to be welded application 5MPa~10MPa are insulation under conditions of 1000 DEG C~1100 DEG C
15min-60min, then the vacuum in stove is 10-3Pa and to part to be welded apply 5MPa~10MPa mechanical pressure bar
In-furnace temperature is cooled to 300 DEG C from 1000 DEG C~1100 DEG C with 5 DEG C/min speed under part, then the vacuum in stove is
10-3Pa and to part to be welded apply 5MPa~10MPa mechanical pressure under conditions of cool to room temperature with the furnace, that is, complete use BNi-
2 solder brazing Ti2AlC ceramics and metallic nickel or nickel alloy.
Advantages of the present invention：
The present invention improves soldering Ti2Reliability when AlC ceramics and metallic nickel or the military service of nickel alloy welding structural element, simultaneously
Be conducive to improving the mechanical behavior under high temperature and inoxidizability of joint using nickel-based high temperature solder, the welding structural element is expected to utilization
In high-temperature field.
(1), compared to other solders containing alloying elements such as Cu, Al, Au, Ni base solders are to Ti2AlC ceramics stability
Influence is smaller, also more reliable when component is on active service in high temperature environments；
(2), BNi-2 solders are in Ti2AlC ceramic surfaces have good wetability, soldered fitting densification are obtained, without hole
The defects such as hole, crackle；
(3), the interaction region formed in brazing process helps to alleviate residual stress, and is not formed within a fitting
Continuous intermetallic compound, therefore obtained property of welded joint is excellent.
Brief description of the drawings
Fig. 1 is the sandwich structure schematic diagram that step one of the present invention is assembled, and A is Ti2AlC ceramics mother metals, B is solder layer,
C is W metal or Ni alloy mother metals；
Fig. 2 is the SEM figures for testing the finished product joint after a soldering, and region A is Ti2AlC ceramics mother metals, region B is pricker
Material and Ti2The interaction region of AlC ceramics mother metals, region C is weld seam, and region D is W metal mother metal.
Embodiment
Embodiment one：Present embodiment uses BNi-2 solder brazings Ti to be a kind of2AlC ceramics and metallic nickel or
The method of nickel alloy, is specifically what is carried out according to the following steps：
First, brazed coupon is prepared：Ti is prepared using the method for wire cutting2AlC ceramic blocks, then on pre-mill successively
Use 100#, 320#, 600#, 1000# and 1500# liquid honing Ti2The surface to be welded of AlC ceramic blocks, reuses particle
Spend and mechanically polished for 0.5 μm of diamond polishing agent to Ti2The surface to be welded of AlC ceramic blocks does not have cut, obtains Ti2AlC
Ceramic mother metal；
W metal block or Ni alloy blocks are prepared using the method for wire cutting, then successively using 200#, 500#,
1000# and 2000# abrasive paper for metallograph polishing W metal block or the surface to be welded of Ni alloy blocks, obtains W metal mother metal or Ni
Alloy mother metal；
By Ti2AlC ceramics mother metals and W metal mother metal or Ni alloy mother metals are put into acetone and are cleaned by ultrasonic 10min, then put
Enter and be cleaned by ultrasonic 10min in absolute ethyl alcohol, then air-dry, BNi-2 solder powders are adjusted to pasty state using organic binder bond, then
Equably smear Ti after cleaning2The Ni alloys after W metal mother metal or cleaning after AlC ceramics mother metal surfaces to be welded and cleaning
Mother metal surface to be welded, then sandwich structure is assembled into by intermediate layer form of solder layer, obtain part to be welded；Described organic binder bond
The mass ratio of volume and BNi-2 solder powders be 1mL:1.5g；
2nd, soldering：The part to be welded that step one is obtained is put in a mold, and then mould is placed in vacuum furnace, right
Part to be welded applies 5MPa~10MPa mechanical pressure, is then vacuumized, when the vacuum in stove is 10-3During Pa, in stove
Vacuum be 10-3Pa and part to be welded is applied in-furnace temperature under conditions of 5MPa~10MPa mechanical pressure from room temperature liter
Temperature is to 300 DEG C, and vacuum in stove is 10-3Pa, the mechanical pressure and in-furnace temperature for applying 5MPa~10MPa to part to be welded
To be incubated 10min-30min under conditions of 300 DEG C, the vacuum in stove is 10-3Pa and to part to be welded apply 5MPa~10MPa
Mechanical pressure under conditions of in-furnace temperature is warming up to 1000 DEG C~1100 DEG C from 300 DEG C, and the vacuum in stove is 10- 3Pa, mechanical pressure and in-furnace temperature to part to be welded application 5MPa~10MPa are insulation under conditions of 1000 DEG C~1100 DEG C
15min-60min, then the vacuum in stove is 10-3Pa and to part to be welded apply 5MPa~10MPa mechanical pressure bar
In-furnace temperature is cooled to 300 DEG C from 1000 DEG C~1100 DEG C with 5 DEG C/min speed under part, then the vacuum in stove is
10-3Pa and to part to be welded apply 5MPa~10MPa mechanical pressure under conditions of cool to room temperature with the furnace, that is, complete use BNi-
2 solder brazing Ti2AlC ceramics and metallic nickel or nickel alloy.
Embodiment two：The difference of present embodiment and embodiment one is：It is organic described in step one
Binding agent is mixed by hydroxyethyl cellulose and distilled water, and the mass ratio of hydroxyethyl cellulose and distilled water is 1:99.Its
He is identical with embodiment one.
Embodiment three：The difference of present embodiment and embodiment one is：BNi-2 described in step one
Solder powder is constituted by mass fraction：3% Fe, 7% Cr, 4.5% Si, 3% B, remaining is Ni.Other with it is specific
Embodiment one is identical.
Embodiment four：The difference of present embodiment and embodiment one or two is：Described nickel alloy
For GH648.Other are identical with embodiment one.
Embodiment five：The difference of present embodiment and embodiment one to three is：Described nickel alloy
For Inconel600.Other are identical with embodiment one.
Beneficial effects of the present invention are verified by tests below：
Experiment one：This experiment uses BNi-2 solder brazings Ti to be a kind of2The method of AlC ceramics and metallic nickel or nickel alloy,
Specifically carry out according to the following steps：
First, brazed coupon is prepared：Ti is prepared using the method for wire cutting2AlC ceramic blocks, then on pre-mill successively
Use 100#, 320#, 600#, 1000# and 1500# liquid honing Ti2The surface to be welded of AlC ceramic blocks, reuses particle
Spend and mechanically polished for 0.5 μm of diamond polishing agent to Ti2The surface to be welded of AlC ceramic blocks does not have cut, obtains Ti2AlC
Ceramic mother metal；
W metal block is prepared using the method for wire cutting, 200#, 500#, 1000# and 2000# gold are then used successively
The surface to be welded of phase sand paper polishing W metal block, obtains W metal mother metal；
By Ti2AlC ceramics mother metals and W metal mother metal are put into acetone and are cleaned by ultrasonic 10min, place into absolute ethyl alcohol
It is cleaned by ultrasonic 10min, then air-dries, BNi-2 solder powders are adjusted to pasty state using organic binder bond, are then equably applied to
Ti after cleaning2The Ni alloy mother metal surfaces to be welded after W metal mother metal or cleaning after AlC ceramics mother metal surfaces to be welded and cleaning, then
Sandwich structure is assembled into by intermediate layer form of solder layer, part to be welded is obtained；The volume and BNi-2 of described organic binder bond
The mass ratio of solder powder is 1mL:1.5g；
2nd, soldering：The part to be welded that step one is obtained is put in a mold, and then mould is placed in vacuum furnace, right
Part to be welded applies 10MPa mechanical pressure, is then vacuumized, when the vacuum in stove is 10-3During Pa, the vacuum in stove
Spend for 10-3Pa and to part to be welded apply 10MPa mechanical pressure under conditions of by in-furnace temperature from room temperature to 300 DEG C, and
Vacuum in stove is 10-3Pa, mechanical pressure and in-furnace temperature to part to be welded application 10MPa are guarantor under conditions of 300 DEG C
Warm 30min, the vacuum in stove is 10-3Pa and part to be welded is applied in-furnace temperature under conditions of 10MPa mechanical pressure
It is warming up to 1000 DEG C from 300 DEG C, and the vacuum in stove is 10-3Pa, the mechanical pressure and stove for applying 10MPa to part to be welded
Interior temperature is is incubated 30min under conditions of 1000 DEG C, and then the vacuum in stove is 10-3Pa and to part to be welded apply 10MPa
Mechanical pressure under conditions of in-furnace temperature is cooled to 300 DEG C from 1000 DEG C with 5 DEG C/min speed, it is then true in stove
Reciprocal of duty cycle is 10-3Pa and to part to be welded apply 10MPa mechanical pressure under conditions of cool to room temperature with the furnace, that is, complete use BNi-
2 solder brazing Ti2AlC ceramics and metallic nickel.Organic binder bond described in step one is mixed by hydroxyethyl cellulose and distilled water
Conjunction is formed, and the mass ratio of hydroxyethyl cellulose and distilled water is 1:99；
BNi-2 solder powders described in step one are constituted by mass fraction is：3% Fe, 7% Cr, 4.5% Si,
3% B, remaining is Ni.
Experiment two：The vacuum being distinguished as in stove of this experiment and experiment one is 10-3Pa, to part to be welded apply 10MPa
Mechanical pressure and in-furnace temperature be to be incubated 15min under conditions of 1000 DEG C, it is other identical with testing one.
Experiment three：The vacuum being distinguished as in step 2 in stove of this experiment and experiment one is 10-3Pa and to part to be welded
Apply and in-furnace temperature is warming up to 1050 DEG C from 300 DEG C under conditions of 10MPa mechanical pressure, and the vacuum in stove is
10-3Pa, to part to be welded apply 10MPa mechanical pressure and in-furnace temperature be 1050 DEG C under conditions of be incubated 30min, then in stove
Interior vacuum is 10-3Pa and part to be welded is applied under conditions of 10MPa mechanical pressure with 5 DEG C/min speed will in stove it is warm
Degree is cooled to 300 DEG C from 1050 DEG C, and others are identical with experiment one.
Experiment four：The vacuum being distinguished as in step 2 in stove of this experiment and experiment three is 10-3Pa, part to be welded is applied
It is other identical with experiment three plus 10MPa mechanical pressure and in-furnace temperature is is incubated 60min under conditions of 1050 DEG C.
Experiment five：The vacuum being distinguished as in step 2 in stove of this experiment and experiment one is 10-3Pa and to part to be welded
Apply and in-furnace temperature is warming up to 1100 DEG C from 300 DEG C under conditions of 10MPa mechanical pressure, and the vacuum in stove is
10-3Pa, to part to be welded apply 10MPa mechanical pressure and in-furnace temperature be 1100 DEG C under conditions of be incubated 30min, then in stove
Interior vacuum is 10-3Pa and part to be welded is applied under conditions of 10MPa mechanical pressure with 5 DEG C/min speed will in stove it is warm
Degree is cooled to 300 DEG C from 1100 DEG C, and others are identical with experiment one.
Table 1
Table 1 is the shear strength test data of the finished product joint after the soldering of experiment one to five, can see, adopts from table
The Ti of excellent in mechanical performance can be obtained with the method for the present invention2AlC/Ni joints, its peak shear strength is 203MPa, is reached
Ti2The 91% of AlC ceramics strength of parent.
Fig. 2 is the SEM figures for testing the finished product joint after a soldering, and region A is Ti2AlC ceramics mother metals, region B is pricker
Material and Ti2The interaction region of AlC ceramics mother metals, region C is weld seam, and region D is W metal mother metal, from the figure, it can be seen that
Solder and Ti2AlC ceramics, which have in good wetability, the joint of acquisition, does not have hole and crackle, and soldering works well.Together
When, in Ti2There is interaction region close to weld seam side in AlC ceramics mother metals, observe the pattern of the active region it can be found that
The region still keeps the Ni elements in the formation and solder in solid-state, the i.e. region in Ti in brazing process2In AlC ceramics mother metals
Dispersal behavior it is related.Can with it is concluded that, Ni elements are to Ti2AlC ceramics stability influence it is smaller, therefore using Ni elements as
Main nickel-based high temperature solder is in soldering Ti2AlC will not cause the violent decomposition of ceramics when ceramic, be that one kind is highly suitable for soldering
Ti2The high-temp solder of AlC ceramics.
Claims (5)
1. one kind uses BNi-2 solder brazings Ti2The method of AlC ceramics and metallic nickel or nickel alloy, it is characterised in that use BNi-
2 solder brazing Ti2The method of AlC ceramics and metallic nickel or nickel alloy is carried out according to the following steps：
First, brazed coupon is prepared：Ti is prepared using the method for wire cutting2AlC ceramic blocks, are then used successively on pre-mill
100#, 320#, 600#, 1000# and 1500# liquid honing Ti2The surface to be welded of AlC ceramic blocks, reusing granularity is
0.5 μm of diamond polishing agent is mechanically polished to Ti2The surface to be welded of AlC ceramic blocks does not have cut, obtains Ti2AlC ceramics
Mother metal；
W metal block or Ni alloy blocks are prepared using the method for wire cutting, then successively using 200#, 500#, 1000# and
2000# abrasive paper for metallograph polishing W metal block or the surface to be welded of Ni alloy blocks, obtains W metal mother metal or Ni alloy mother metals；
By Ti2AlC ceramics mother metals and W metal mother metal or Ni alloy mother metals are put into acetone and are cleaned by ultrasonic 10min, place into anhydrous
It is cleaned by ultrasonic 10min in ethanol, then air-dries, BNi-2 solder powders is adjusted to pasty state using organic binder bond, then equably
Smear Ti after cleaning2The Ni alloy mother metals after W metal mother metal or cleaning after AlC ceramics mother metal surfaces to be welded and cleaning are treated
The face of weld, then sandwich structure is assembled into by intermediate layer form of solder layer, obtain part to be welded；The volume of described organic binder bond
Mass ratio with BNi-2 solder powders is 1mL:1.5g；
2nd, soldering：The part to be welded that step one is obtained is put in a mold, and then mould is placed in vacuum furnace, to be welded
Part applies 5MPa~10MPa mechanical pressure, is then vacuumized, when the vacuum in stove is 10-3It is true in stove during Pa
Reciprocal of duty cycle is 10-3Pa and to part to be welded apply 5MPa~10MPa mechanical pressure under conditions of by in-furnace temperature from room temperature to
300 DEG C, and vacuum in stove is 10-3Pa, mechanical pressure and in-furnace temperature to part to be welded application 5MPa~10MPa are
10min-30min is incubated under conditions of 300 DEG C, the vacuum in stove is 10-3Pa and 5MPa~10MPa is applied to part to be welded
In-furnace temperature is warming up to 1000 DEG C~1100 DEG C from 300 DEG C under conditions of mechanical pressure, and the vacuum in stove is 10- 3Pa, mechanical pressure and in-furnace temperature to part to be welded application 5MPa~10MPa are insulation under conditions of 1000 DEG C~1100 DEG C
15min-60min, then the vacuum in stove is 10-3Pa and to part to be welded apply 5MPa~10MPa mechanical pressure bar
In-furnace temperature is cooled to 300 DEG C from 1000 DEG C~1100 DEG C with 5 DEG C/min speed under part, then the vacuum in stove is
10-3Pa and to part to be welded apply 5MPa~10MPa mechanical pressure under conditions of cool to room temperature with the furnace, that is, complete use BNi-
2 solder brazing Ti2AlC ceramics and metallic nickel or nickel alloy.
2. one kind according to claim 1 uses BNi-2 solder brazings Ti2The side of AlC ceramics and metallic nickel or nickel alloy
Method, it is characterised in that the organic binder bond described in step one is mixed by hydroxyethyl cellulose and distilled water, ethoxy is fine
The mass ratio of dimension element and distilled water is 1:99.
3. one kind according to claim 1 uses BNi-2 solder brazings Ti2The side of AlC ceramics and metallic nickel or nickel alloy
Method, it is characterised in that the BNi-2 solder powders described in step one are constituted by mass fraction is：3% Fe, 7% Cr, 4.5%
Si, 3% B, remaining is Ni.
4. one kind according to claim 1 uses BNi-2 solder brazings Ti2The side of AlC ceramics and metallic nickel or nickel alloy
Method, it is characterised in that described nickel alloy is GH648.
5. one kind according to claim 1 uses BNi-2 solder brazings Ti2The side of AlC ceramics and metallic nickel or nickel alloy
Method, it is characterised in that described nickel alloy is Inconel600.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610124891.0A CN105562869B (en) | 2016-03-04 | 2016-03-04 | One kind uses the solder brazing Ti of BNi 22The method of AlC ceramics and metallic nickel or nickel alloy |
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|---|---|---|---|
| CN201610124891.0A CN105562869B (en) | 2016-03-04 | 2016-03-04 | One kind uses the solder brazing Ti of BNi 22The method of AlC ceramics and metallic nickel or nickel alloy |
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