CN106736030B - A kind of application method of solder in welding C/SiC composite material and metal - Google Patents
A kind of application method of solder in welding C/SiC composite material and metal Download PDFInfo
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- CN106736030B CN106736030B CN201611218090.7A CN201611218090A CN106736030B CN 106736030 B CN106736030 B CN 106736030B CN 201611218090 A CN201611218090 A CN 201611218090A CN 106736030 B CN106736030 B CN 106736030B
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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
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
- B23K35/302—Cu as the principal constituent
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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
- B23K1/20—Preliminary treatment of work or areas to be soldered, e.g. in respect of a galvanic coating
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Abstract
The present invention relates to a kind of connection solder of dissimilar material and the application methods of the solder.The solder；By mass percentage, including following components: Cu-Cr-Zr-Ni- (Al)-(RE) alloyed powder 80~90%, Ti powder 10~20%；The Cu-Cr-Zr-Ni- (Al)-(RE) alloyed powder includes following components: Cr 0.2-1.5% by percentage to the quality；Zr 0.1-0.6%；Ni 10-40%；Surplus is Cu and inevitable impurity.Its technique for applying are as follows: after being activated the suitable C/SiC composite material of surface roughness and metal to be welded, first C/SiC composite material is embedded in solder, coating metal is obtained and penetrates into the C/SiC composite material of metal；Then it is with by metal-clad to be welded again, and under stress, soldering obtains finished product.
Description
Technical field
The present invention relates to a kind of connection solder of dissimilar material and the application method of the solder, specially connection C/SiC is multiple
The application method of the solder and the solder of condensation material and metal.
Background technique
C/SiC composite density is 2.0~2.5g/cm3, only the 1/3~1/4 of high temperature alloy, tungsten alloy 1/9~
1/10, have the characteristics that high temperature resistant, anti-thermal shock, anti-ablation and metalloid fracture, 1650 DEG C or less long-lives, 2000 DEG C can be met
Following finite lifetime, the requirement in 3000 DEG C or less instantaneous service life.As a kind of new material, C/SiC composite material is abundant
The advantage for combining carbon fiber and SiC matrix, the advantages that showing low-density, high intensity, high temperature resistant, resistance to ablation, antiscour,
Aerospace, weaponry and other industrial circles are with a wide range of applications.C/SiC composite material has as brake material
Have the advantages that density is low, thermal-shock resistance is strong, brake is steady, thermal capacity is big, good in oxidation resistance, wear weight loss rate are small, Er Qieke
The deficiencies of moisture absorption of carbon disk is big, hygrometric state coefficient of friction is low, confficient of static friction is low, bad adaptability is taken.
But the extensive use of C/SiC composite material necessarily involve C/SiC composite material itself and with other materials spy
It is not the connectivity problem of metal material.Because ceramics and metal are widely different in physics, chemical property, C/SiC composite material
It is greater than 90 ° with the angle of wetting of most metals, that is, belongs to complete nonwetting system, therefore cannot achieve direct combination.And because
For the greatest differences of the two thermal expansion coefficient, coupling part is caused very big thermal stress occur and crack.Currently, common solve to do
Method is to construct intermediate layer between ceramics and metal, improves the wetability of the two, and alleviate the thermal stress of connecting portion.
Chinese patent CN 101462890A discloses the connection method of a kind of C/SiC composite material and titanium alloy, this method
The paste solder that Cu powder, Ti powder and graphite powder are mixed, connects C/SiC composite material and titanium alloy, the shearing of connector are strong
Degree is up to 126MPa.Chinese patent CN 102924109B discloses a kind of CfThe based composites connection method of/SiC ceramic, should
Connection method selects Ti-Zr-Be alloy as connecting material, in the case where not applying stressed vacuum condition, 950 DEG C~1050 DEG C guarantors
5~120min of temperature, passes through each element in connecting material and base material CfFiber C and SiC matrix in/SiC ceramic based composites
Reaction generates high-melting-point TiC, ZrC, Ti-Si-C, Be2The Carbide Phases such as C form similar particles reiforced metal-base composition
Articulamentum, reduce the thermal expansion coefficient of articulamentum, alleviate connector thermal stress, the shear strength of connector is up to
125.14MPa, and still have higher shear strength at 800 DEG C.
Japanese plum outstanding person etc. use Zr/Ta composite interlayer, by vacuum hotpressing diffusion welding (DW) Joining Technology connect C/SiC and
GH128 nickel base superalloy [such as Japanese plum outstanding person Rare Metals Materials and engineering, 2002,31 (supplementary issues 1): 393-396], connector
Bonding strength is 110.9MPa.Li Jinglong et al. connects C/SiC composite wood as intermediate layer material using Ti-Cu bianry alloy foil
Material and metal Nb [Li jinglong, et al.Scripta Materialia, 2006,55:151-154], the shearing of connector is strong
Degree is only 34.1MPa.
Summary of the invention
Currently, due to swollen by heat between Interlayer Alloy and Interlayer Alloy and base material (C/SiC composite material and metal)
Swollen coefficient mismatches, the residual stress of generation, causes the bonding strength of C/SiC composite material and metal to improve limited.To overcome
This problem, the present invention propose a kind of solder and its application method in welding C/SiC composite material and metal.
A kind of solder of the present invention；By mass percentage, including following components:
Cu-Cr-Zr-Ni alloyed powder 80~90%, Ti powder 10~20%；
The Cu-Cr-Zr-Ni alloyed powder includes following components by percentage to the quality:
Cr 0.2-1.5%, preferably 0.5-1.5%, further preferably 1.0-1.2%；
Zr 0.1-0.6%, preferably 0.1-0.4%；
Ni 10-40%；It is preferred that 15-40%, further preferably 30-40% or 15%.
Surplus is Cu and inevitable impurity.
A kind of solder of the present invention；The Cu-Cr-Zr-Ni alloyed powder further includes by percentage to the quality following components:
Al 0-10%, preferably 3-7%；
RE 0-0.3%, preferably 0.05-0.23%.
A kind of solder of the present invention；The granularity of the Cu-Cr-Zr-Ni alloyed powder is 30~50 μm, the granularity of Ti powder is 20~
40μm。
A kind of solder of the present invention；The RE is selected from least one of La, Ce, Pr, Y, Er, Yb, Sc element.
A kind of application method of the solder of the present invention in welding C/SiC composite material and metal；Include the following steps:
Step 1
Sandblasting to the surface roughness Ra after connecting facing cut and putting down by C/SiC composite material and metal to be welded is 1.6~0.4
μm；
Step 2
After the impurity of the joint face of C/SiC composite material and metal to be welded after removing sandblasting；Put it into 10~20g/
The K of 100mL2ZrF6In solution, 80~120 DEG C of heat preservations；
Step 3
Cu-Cr-Zr-Ni alloyed powder and the progress of Ti powder is dry-mixed to uniformly mixed, obtain mixed powder；
Step 4
The C/SiC composite material that step 2 is handled is embedded in the mixed powder of step 3, vacuum-sintering, obtains coating metal
Change and penetrate into the C/SiC composite material of metal；
Step 5
By the sandblasting after connecting facing cut and putting down of the C/SiC composite material of coating metal prepared by step 4 to rough surface
Spending Ra is 1.6~0.4 μm；
Step 6
C/SiC composite material that step 5 is obtained and metal to be welded are bonded and along the Vertical Square of binding face to joint face
To the pressure for applying 20~40MPa, release furnace cooling after vacuum hotpressing obtains the connector of C/SiC composite material and metal.
Soaking time in step 2 is 2~3h.
A kind of application method of the solder of the present invention in welding C/SiC composite material and metal；In step 4, vacuum-sintering
Technological parameter are as follows: the vacuum degree in vacuum hotpressing stove burner hearth is less than or equal to 10-2Pa；1100~1200 DEG C of sintering temperature, when heat preservation
Between 0.5~2h, furnace pressure control in 15~20MPa；Heating rate and rate of temperature fall are 10~15 DEG C/min, and sintering is completed
Release cools to room temperature with the furnace afterwards.
A kind of application method of the solder of the present invention in welding C/SiC composite material and metal；In step 6, in hot pressing furnace
Vacuum degree is no more than 5.0 × 10-3Pa is heated up with the rate of 5~10 DEG C/min, and soaking time is 5~20min, then with 5~10
DEG C/cooling of the rate of min, last release obtains finished product.
A kind of application method of the solder of the present invention in welding C/SiC composite material and metal；The metal to be welded choosing
From at least one of titanium alloy, copper alloy, nickel alloy, aluminium alloy, aluminum matrix composite.
A kind of application method of the solder of the present invention in welding C/SiC composite material and metal；When metal to be welded is 7055
When aluminium alloy, the shear strength at room temperature of gained finished product is more than or equal to 139MPa.
A kind of application method of the solder of the present invention in welding C/SiC composite material and metal；When metal to be welded is SiC
When grain reinforced aluminum matrix composites, the shear strength at room temperature of gained finished product is more than or equal to 187MPa；The SiC particulate enhances aluminium
Based composites include following components with mass percent: SiC 15%, surplus are alloy matrix aluminum；The alloy matrix aluminum is
2024 aluminium alloys；
A kind of application method of the solder of the present invention in welding C/SiC composite material and metal；When metal to be welded is titanium conjunction
When golden TC4, the shear strength at room temperature of gained finished product is more than or equal to 142MPa.
A kind of application method of the solder of the present invention in welding C/SiC composite material and metal；When metal to be welded is copper conjunction
When golden H60, the shear strength at room temperature of gained finished product is more than or equal to 195MPa.
A kind of application method of the solder of the present invention in welding C/SiC composite material and metal；When metal to be welded is nickel conjunction
When golden inconel 600, the shear strength at room temperature of gained finished product is more than or equal to 216MPa.
The present invention uses K2ZrF6Solution handles SiC and metal surface, significantly improves SiC and intermetallic wetability, reduces
Interface energy between the two；Using active element Ti in C/SiC matrices of composite material pyrolytic carbon and free Si react generation
TiC、Ti5Si3Equal compound particles, utilize TiC, Ti5Si3With the good wetability of Cu, obtains surface and be permeated with part metals
C/SiC composite material.
Using Cu-Cr-Zr-Ni alloy, in alloy contained constituent element reacted with C/SiC composite material generate high-melting-point ZrC,
Cr3Si、Cr3C2、Si3Ti2Zr3、Ni3The compounds phase such as Si, improves the high temperature resistance of articulamentum, relief of thermal stress.In addition,
Cr, Zr, Ni etc. can also be solid-solution in intrinsic silicon other than being present in Copper substrate in the form of the second phase, play the effect of precipitation strength
Fruit improves the ability that bonding pad absorbs thermal stress.The addition of appropriate rare earth element can also change other than it can refine crystal grain
Kind processing performance and improve corrosion-proof wear, formed C/SiC composite material/C/SiC composite material of very strong interface cohesion+
TiC+ copper solid solution/copper alloy stratiform transient response layer.
Since the surface of C/SiC composite material and surface part are metallized, the interface for solving it with metal is moistened
Moist problem, then by the connection of hot pressing realization C/SiC composite material and metal, coefficient of thermal expansion differences between base material can be effectively relieved
Thermal stress caused by different, in addition base material joint face has all carried out sandblasting pretreatment, the coarse connection for making joint on surface is strong
Degree significantly improves, and shearing strength of joint is higher.
Principle and advantage:
(1) K is used2ZrF6Solution handles SiC and metal surface, and the surface C/SiC is made to form ZrSi2Equal compounds, close aluminium
The metal surfaces such as gold form Al3The compounds such as Zr, and dissolve oxide layer SiO2And Al2O3, significantly improve SiC with it is intermetallic
Wetability reduces interface energy between the two.
(2) wetability of metal and C/SiC are poor, after active element Ti is added, under high temperature in molten Ti and C/SiC matrix
Pyrolytic carbon and free Si reaction generate TiC, Ti5Si3Equal compound particles.Cu alloy relies on and TiC, Ti5Si3Good wetting
Property, in TiC, Ti5Si3Surface spreading is opened, and by chemisorption, solid/liquid interfaces energy is reduced, to reduce liquid NiAl alloy epitaxy
Interface stress causes molten copper alloy drop to penetrate into C/SiC composite inner by hole and hole capillary force
Hole improves penetrating power of the copper alloy liquid to C/SiC matrix, in the hole that copper alloy melt is infiltered to C/SiC composite material.
(3) contained constituent element reacts generation high-melting-point ZrC, Cr with C/SiC composite material in Cu-Cr-Zr-Ni alloy3Si、
Cr3C2、Si3Ti2Zr3、Ni3The compounds phase such as Si, improves the high temperature resistance of articulamentum, relief of thermal stress.In addition, Cr, Zr, Ni
Deng other than being present in Copper substrate in the form of the second phase, it can be also solid-solution in intrinsic silicon, play the effect of precipitation strength, the company of raising
Connect the ability that area absorbs thermal stress.The addition of appropriate rare earth element can also improve processing performance other than it can refine crystal grain
And improve corrosion-proof wear.
(4) it is small to penetrate into the residual stress generated when C/SiC composite inner for Cu-Cr-Zr-Ni alloy, and forms boundary
Face combines very strong C/SiC composite material/C/SiC composite material+TiC+ copper solid solution/copper alloy stratiform transient response layer.
(5) since the surface of C/SiC composite material and surface part are metallized, its interface with metal is solved
Problem of Wettability, then by the connection of hot pressing realization C/SiC composite material and metal, thermal expansion coefficient between base material can be effectively relieved
Thermal stress caused by difference, in addition base material joint face has all carried out sandblasting pretreatment, the coarse connection for making joint on surface
Intensity significantly improves, and shear strength is increased to 139MPa or more.
(6) due to using Cu-Cr-Zr-Ni alloyed powder in solder, in high Ni content (being especially greater than equal to 30%)
When, Ni can be obviously improved the shear strength of gained welding product under the synergistic effect of other appropriate amount of components and preparation process.
Specific embodiment:
The present invention provides solder and the connection methods of a kind of C/SiC composite material and metal, below by specific reality
Example is applied the present invention is explained further.
Embodiment 1
The connection of C/SiC composite material and 7055 aluminium alloys:
Solder used in the present embodiment 1, includes following components with mass percent:
Cu-Cr-Zr-Ni-Al-La alloyed powder 85%, Ti powder 15%.The granularity of Cu-Cr-Zr-Ni-Al-La alloyed powder is
30 μm, the granularity of Ti powder is 30 μm.
Cu-Cr-Zr-Ni-Al-La alloyed powder includes following components with mass percent: Cr 0.5%, Zr 0.3%, Ni
10%, Al 3%, La 0.05%, surplus are Cu and inevitable impurity.
It is being by sandblasting to the surface roughness Ra after connecting facing cut and putting down of C/SiC composite material and 7055 aluminium alloys first
1.6~0.4 μm, remove sandblasting after C/SiC composite material and metal joint face impurity after, put it into 10g/100mL
K2ZrF6In solution, 80 DEG C of heat preservation 3h.Later, Cu-Cr-Zr-Ni-Al-La alloyed powder and Ti powder are carried out dry-mixed equal to mixing
It is even, obtain mixed powder.Again by K2ZrF6The C/SiC composite material of solution processing, which is embedded in mixed powder, carries out vacuum-sintering, vacuum
Degree is 10-2Pa, 1100 DEG C of sintering temperature, soaking time 2h, furnace pressure 20MPa, heating rate and rate of temperature fall are 10
~15 DEG C/min, release cools to room temperature with the furnace after the completion of sintering, and the facing cut to be connected of the modification C/SiC composite material of acquisition is flat
Sandblasting afterwards, until surface roughness Ra is 1.6~0.4 μm.Finally, by the modification C/SiC composite material and 7055 aluminium of blasting treatment
Alloy waits for that joint face is bonded, and applies the pressure of 40MPa along the vertical direction of binding face, vacuum hotpressing, vacuum degree in hot pressing furnace
It is 5.0 × 10-3Pa is heated up with the rate of 5~10 DEG C/min, and hot pressing temperature is 450 DEG C, soaking time 5min, then with 5~
The rate of 10 DEG C/min cools down, and last release obtains the connector of C/SiC composite material and 7055 aluminium alloys.
The C/SiC composite material and 7055 aluminum alloy connectors of acquisition are tested for the property, at room temperature shear strength
For 139MPa.
Embodiment 2
The connection of C/SiC composite material and SiC particulate reinforced aluminum matrix composites:
Solder used in the present embodiment 2, includes following components with mass percent:
Cu-Cr-Zr-Ni-Al-Sc alloyed powder 88%, Ti powder 12%.The granularity of Cu-Cr-Zr-Ni-Al-Sc alloyed powder is
40 μm, the granularity of Ti powder is 35 μm.
Cu-Cr-Zr-Ni-Al-Sc alloyed powder includes following components with mass percent: Cr 1.0%, Zr 0.25%,
Ni 15%, Al 5%, Sc 0.20%, surplus are Cu and inevitable impurity.
SiC particulate reinforced aluminum matrix composites include following components with mass percent: SiC particulate mass percent is
15%, alloy matrix aluminum is 2024 aluminium alloys.
First by C/SiC composite material and SiC particulate reinforced aluminum matrix composites wait connect facing cut it is flat after sandblasting extremely
Surface roughness Ra is 1.6~0.4 μm, the C/SiC composite material and SiC particulate reinforced aluminum matrix composites after removing sandblasting
After the impurity of joint face, the K of 15g/100mL is put it into2ZrF6In solution, 90 DEG C of heat preservation 2h.Later, by Cu-Cr-Zr-Ni-
Al-Sc alloyed powder and the progress of Ti powder are dry-mixed to uniformly mixed, obtain mixed powder.Again by K2ZrF6The C/SiC composite wood of solution processing
Material, which is embedded in mixed powder, carries out vacuum-sintering, vacuum degree 10-2Pa, 1150 DEG C of sintering temperature, soaking time 1.5h, furnace internal pressure
Power is 20MPa, and heating rate and rate of temperature fall are 10~15 DEG C/min, and release cools to room temperature with the furnace after the completion of sintering, obtains
The sandblasting after connecting facing cut and putting down of the modification C/SiC composite material obtained, until surface roughness Ra is 1.6~0.4 μm.Finally, will
The modification C/SiC composite material and SiC particulate reinforced aluminum matrix composites of blasting treatment wait for that joint face is bonded, and along binding face
Vertical direction applies the pressure of 40MPa, and vacuum hotpressing, vacuum degree is 5.0 × 10 in hot pressing furnace-3Pa, with the speed of 5~10 DEG C/min
Rate heating, hot pressing temperature are 480 DEG C, soaking time 20min, are then cooled down with the rate of 5~10 DEG C/min, last release,
Obtain the connector of C/SiC composite material and SiC particulate reinforced aluminum matrix composites.
C/SiC composite material and SiC particulate reinforced aluminum matrix composites connector to acquisition are tested for the property, room
The lower shear strength of temperature is 187MPa.
Embodiment 3
The connection of C/SiC composite material and titanium alloy TC 4:
Solder used in the present embodiment 3, includes following components with mass percent:
Cu-Cr-Zr-Ni-Al-Yb alloyed powder 90%, Ti powder 10%.The granularity of Cu-Cr-Zr-Ni-Al-Yb alloyed powder is
40 μm, the granularity of Ti powder is 30 μm.
Cu-Cr-Zr-Ni-Al-Yb alloyed powder includes following components with mass percent: Cr 1.5%, Zr 0.3%, Ni
20%, Al 7%, Yb 0.18%, surplus are Cu and inevitable impurity.
It is being by sandblasting to the surface roughness Ra after connecting facing cut and putting down of C/SiC composite material and titanium alloy TC 4 first
1.6~0.4 μm, remove sandblasting after C/SiC composite material and titanium alloy TC 4 joint face impurity after, put it into 15g/
The K of 100mL2ZrF6In solution, 90 DEG C of heat preservation 1.5h.Later, Cu-Cr-Zr-Ni-Al-Yb alloyed powder and Ti powder are carried out dry-mixed
To being uniformly mixed, mixed powder is obtained.Again by K2ZrF6The C/SiC composite material of solution processing, which is embedded in mixed powder, carries out vacuum
Sintering, vacuum degree 10-2Pa, 1120 DEG C of sintering temperature, soaking time 1h, furnace pressure 20MPa, heating rate and cooling are fast
Rate is 10~15 DEG C/min, and release cools to room temperature with the furnace after the completion of sintering, the modification C/SiC composite material of acquisition to even
Sandblasting after junction milling is flat, until surface roughness Ra is 1.6~0.4 μm.Finally, by the modification C/SiC composite material of blasting treatment
It waits for that joint face is bonded with titanium alloy TC 4, and applies the pressure of 40MPa along the vertical direction of binding face, vacuum hotpressing, in hot pressing furnace
Vacuum degree is 5.0 × 10-3Pa is heated up with the rate of 5~10 DEG C/min, and hot pressing temperature is 1080 DEG C, soaking time 15min,
Then cooled down with the rate of 5~10 DEG C/min, last release obtains the connector of C/SiC composite material and titanium alloy TC 4.
The C/SiC composite material and titanium alloy TC 4 connector of acquisition are tested for the property, shear strength is at room temperature
142MPa。
Embodiment 4
The connection of C/SiC composite material and copper alloy H60:
Solder used in the present embodiment 4, includes following components with mass percent:
Cu-Cr-Zr-Ni-Al-Er alloyed powder 85%, Ti powder 15%.The granularity of Cu-Cr-Zr-Ni-Al-Er alloyed powder is
50 μm, the granularity of Ti powder is 20 μm.
Cu-Cr-Zr-Ni-Al-Er alloyed powder includes following components with mass percent: Cr 1.2%, Zr 0.4%, Ni
30%, Al 6%, Er 0.23%, surplus are Cu and inevitable impurity.
It is being by sandblasting to the surface roughness Ra after connecting facing cut and putting down of C/SiC composite material and copper alloy H60 first
1.6~0.4 μm, remove sandblasting after C/SiC composite material and copper alloy H60 joint face impurity after, put it into 20g/
The K of 100mL2ZrF6In solution, 100 DEG C of heat preservation 3h.Later, Cu-Cr-Zr-Ni-Al-Er alloyed powder and the progress of Ti powder is dry-mixed extremely
It is uniformly mixed, obtains mixed powder.Again by K2ZrF6The C/SiC composite material of solution processing is embedded in progress vacuum burning in mixed powder
Knot, vacuum degree 10-2Pa, 1120 DEG C of sintering temperature, soaking time 1h, furnace pressure 15MPa, heating rate and rate of temperature fall
Be 10~15 DEG C/min, release cools to room temperature with the furnace after the completion of sintering, the modification C/SiC composite material of acquisition wait connect
Sandblasting after facing cut is flat, until surface roughness Ra is 1.6~0.4 μm.Finally, by the modification C/SiC composite material of blasting treatment and
Copper alloy H60 waits for that joint face is bonded, and applies the pressure of 30MPa along the vertical direction of binding face, vacuum hotpressing, true in hot pressing furnace
Reciprocal of duty cycle is 5.0 × 10-3Pa is heated up with the rate of 5~10 DEG C/min, and hot pressing temperature is 980 DEG C, soaking time 15min, then
Cooled down with the rate of 5~10 DEG C/min, last release obtains the connector of C/SiC composite material and copper alloy H60.
C/SiC composite material and copper alloy H60 connector to acquisition are tested for the property, and shear strength is at room temperature
195MPa。
Embodiment 5
The connection of C/SiC composite material and nickel alloy inconel 600:
Solder used in the present embodiment 5, includes following components with mass percent:
Cu-Cr-Zr-Ni alloyed powder 80%, Ti powder 20%.The granularity of Cu-Cr-Zr-Ni alloyed powder is 40 μm, the grain of Ti powder
Degree is 25 μm.
Cu-Cr-Zr-Ni alloyed powder includes following components with mass percent: Cr 1.2%, Zr 0.1%, Ni 40%,
Surplus is Cu and inevitable impurity.
First the sandblasting after connecting facing cut and putting down of C/SiC composite material and nickel alloy inconel 600 is thick to surface
Rugosity Ra is 1.6~0.4 μm, the impurity of the joint face of C/SiC composite material and nickel alloy inconel 600 after removing sandblasting
Afterwards, the K of 18g/100mL is put it into2ZrF6In solution, 100 DEG C of heat preservation 2h.Later, by Cu-Cr-Zr-Ni alloyed powder and Ti powder
It carries out dry-mixed to uniformly mixed, obtains mixed powder.Again by K2ZrF6The C/SiC composite material of solution processing is embedded in mixed powder
Carry out vacuum-sintering, vacuum degree 10-2Pa, 1200 DEG C of sintering temperature, soaking time 1h, furnace pressure 15MPa, heating rate
It is 10~15 DEG C/min with rate of temperature fall, release cools to room temperature, the modification C/SiC composite wood of acquisition with the furnace after the completion of sintering
The sandblasting after connecting facing cut and putting down of material, until surface roughness Ra is 1.6~0.4 μm.Finally, by the modification C/SiC of blasting treatment
Composite material and nickel alloy inconel 600 are bonded to joint face, and apply the pressure of 30MPa along the vertical direction of binding face,
Vacuum hotpressing, vacuum degree is 5.0 × 10 in hot pressing furnace-3Pa is heated up with the rate of 5~10 DEG C/min, and hot pressing temperature is 1100 DEG C,
Soaking time is 15min, is then cooled down with the rate of 5~10 DEG C/min, last release, obtains C/SiC composite material and nickel closes
The connector of golden inconel 600.
C/SiC composite material and 600 connector of nickel alloy inconel to acquisition are tested for the property, and are cut at room temperature
Shearing stress is 216MPa.
Comparative example 1
Other conditions parameter and embodiment 5 are completely the same；The difference is that: Cu-Cr-Zr-Ni alloyed powder, with quality hundred
Divide than including following components: Cr 1.2%, Zr 0.1%, Ni 3%, surplus is Cu and inevitable impurity.Gained finished product carries out
Performance test, shear strength is 85MPa at room temperature.
Comparative example 2
Other conditions parameter and embodiment 5 are completely the same；The difference is that:
First the sandblasting after connecting facing cut and putting down of C/SiC composite material and nickel alloy inconel 600 is thick to surface
Rugosity Ra is 1.6~0.4 μm, the impurity of the joint face of C/SiC composite material and nickel alloy inconel 600 after removing sandblasting
Afterwards, the K of 18g/100mL is put it into2ZrF6In solution, 100 DEG C of heat preservation 2h.Later, by Cu-Cr-Zr-Ni alloyed powder and Ti powder
It carries out dry-mixed to uniformly mixed, obtains mixed powder.Again by K2ZrF6The C/SiC composite material of solution processing is embedded in mixed powder
Carry out vacuum-sintering, vacuum degree 10-2Pa, 900 DEG C of sintering temperature, soaking time 1h, furnace pressure 5MPa, heating rate with
Rate of temperature fall is 50 DEG C/min, and release cools to room temperature with the furnace after the completion of sintering, the modification C/SiC composite material of acquisition to
The flat rear sandblasting of facing cut is connected, until surface roughness Ra is 3 μm.Finally, the modification C/SiC composite material and nickel of blasting treatment are closed
Golden inconel 600 is bonded to joint face, and applies the pressure of 50MPa, vacuum hotpressing, hot pressing furnace along the vertical direction of binding face
Interior vacuum degree is 5.0 × 10-3Pa is heated up with the rate of 50 DEG C/min, and hot pressing temperature is 900 DEG C, soaking time 15min, so
Cooled down afterwards with the rate of 50 DEG C/min, last release obtains the connector of C/SiC composite material and nickel alloy inconel 600.
Gained finished product is tested for the property, and shear strength is 112MPa at room temperature.
By comparative example 1,2 and embodiment can be seen that solder designed by the present invention cooperate appropriate technique in use,
Achieve the effect that unexpected.
Claims (9)
1. a kind of application method of solder in welding C/SiC composite material and metal；It is characterized by comprising following step:
Step 1
Sandblasting to the surface roughness Ra after connecting facing cut and putting down by C/SiC composite material and metal to be welded is 1.6~0.4 μm；
Step 2
After the impurity of the joint face of C/SiC composite material and metal to be welded after removing sandblasting, 10~20g/100mL is put it into
K2ZrF6In solution, 80~120 DEG C of heat preservations；
Step 3
Cu-Cr-Zr-Ni alloyed powder and the progress of Ti powder is dry-mixed to uniformly mixed, obtain mixed powder；The mixed powder presses quality hundred
Divide than meter, including following components:
Cu-Cr-Zr-Ni alloyed powder 80~90%, Ti powder 10~20%；
The Cu-Cr-Zr-Ni alloyed powder includes following components by percentage to the quality:
Cr 0.2-1.5%；
Zr 0.1-0.6%；
Ni 10-40%；
Surplus is Cu and inevitable impurity；
Step 4
The C/SiC composite material that step 2 is handled is embedded in the mixed powder of step 3, vacuum-sintering, obtain coating metal and
Penetrate into the C/SiC composite material of metal；
Step 5
By the sandblasting after connecting facing cut and putting down of the C/SiC composite material of coating metal prepared by step 4 to surface roughness Ra
It is 1.6~0.4 μm；
Step 6
Being bonded C/SiC composite material that step 5 obtains and metal to be welded to joint face and being applied along the vertical direction of binding face
Add the pressure of 20~40MPa, release furnace cooling after vacuum hotpressing obtains the connector of C/SiC composite material and metal.
2. a kind of application method of the solder according to claim 1 in welding C/SiC composite material and metal；Its feature
It is:
In step 4, vacuum sintering technology parameter are as follows: the vacuum degree in vacuum hotpressing stove burner hearth is less than or equal to 10-2Pa；Sintering temperature
1100~1200 DEG C, 0.5~2h of soaking time, furnace pressure is controlled in 15~20MPa；Heating rate and rate of temperature fall are 10
~15 DEG C/min, release cools to room temperature with the furnace after the completion of sintering；
In step 6, vacuum degree is no more than 5.0 × 10 in hot pressing furnace-3Pa, is heated up with the rate of 5~10 DEG C/min, and soaking time is
5~20min, is then cooled down with the rate of 5~10 DEG C/min, and last release obtains finished product.
3. a kind of application method of the solder according to claim 1 in welding C/SiC composite material and metal；Its feature
Be: the metal to be welded is selected from least one of titanium alloy, copper alloy, nickel alloy, aluminium alloy, aluminum matrix composite.
4. a kind of application method of the solder according to claim 3 in welding C/SiC composite material and metal；Its feature
It is:
When metal to be welded is 7055 aluminium alloy, the shear strength at room temperature of gained finished product is more than or equal to 139MPa；
When metal to be welded is SiC particulate reinforced aluminum matrix composites, the shear strength at room temperature of gained finished product is more than or equal to
187MPa；The SiC particulate reinforced aluminum matrix composites include following components with mass percent: SiC 15%, surplus are aluminium
Alloy substrate；The alloy matrix aluminum is 2024 aluminium alloys；
When metal to be welded is titanium alloy TC 4, the shear strength at room temperature of gained finished product is more than or equal to 142MPa；
When metal to be welded is copper alloy H60, the shear strength at room temperature of gained finished product is more than or equal to 195MPa；
When metal to be welded is nickel alloy inconel 600, the shear strength at room temperature of gained finished product is more than or equal to 216MPa.
5. a kind of application method of the solder according to claim 1 in welding C/SiC composite material and metal；Its feature
It is:
The Cu-Cr-Zr-Ni alloyed powder includes following components by percentage to the quality:
Cr 0.5-1.5%；
Zr 0.1-0.4%；
Ni 15-40%；
Surplus is Cu and inevitable impurity.
6. a kind of application method of the solder according to claim 5 in welding C/SiC composite material and metal；Its feature
It is:
The Cu-Cr-Zr-Ni alloyed powder includes following components by percentage to the quality:
Cr 1.0-1.2%；
Zr 0.1-0.4%；
Ni 30-40% or 15%；
Surplus is Cu and inevitable impurity.
7. a kind of application method of the solder according to claim 1 in welding C/SiC composite material and metal；Its feature
It is:
The Cu-Cr-Zr-Ni alloyed powder further includes by percentage to the quality following components:
Al 0-10%；
RE 0-0.3%.
8. a kind of application method of the solder according to claim 1 in welding C/SiC composite material and metal；Its feature
It is:
The granularity of the Cu-Cr-Zr-Ni alloyed powder is 30~50 μm, and the granularity of Ti powder is 20~40 μm.
9. a kind of application method of the solder according to claim 7 in welding C/SiC composite material and metal；Its feature
Be: the RE is selected from least one of La, Ce, Pr, Y, Er, Yb, Sc element.
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| CN108161156B (en) * | 2017-11-23 | 2021-01-01 | 安泰天龙钨钼科技有限公司 | Vacuum brazing method for molybdenum alloy and graphite |
| CN110803942B (en) * | 2019-11-19 | 2021-06-25 | 中南大学 | Preparation method of ultrahigh-temperature ceramic modified C/C composite material |
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| JP4568092B2 (en) * | 2004-11-17 | 2010-10-27 | Ｄｏｗａホールディングス株式会社 | Cu-Ni-Ti copper alloy and heat sink |
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| DE4105596A1 (en) * | 1991-02-22 | 1992-08-27 | Degussa | Prodn. of high temp. resistant soldered joint between ceramic parts - by metallising using active solder and then soldering with hard solder |
| CN1146391A (en) * | 1996-06-25 | 1997-04-02 | 吉林工业大学 | Solder for ceramic soldering |
| CN101178982A (en) * | 2006-11-08 | 2008-05-14 | 贵州大学 | Multiple copper-based electrical contact alloy material |
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