CN109483040A - A kind of welding method of 55% enhancing aluminum-base composite material by silicon carbide particles of pure Zn as intermediate reaction material layer - Google Patents
A kind of welding method of 55% enhancing aluminum-base composite material by silicon carbide particles of pure Zn as intermediate reaction material layer Download PDFInfo
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- CN109483040A CN109483040A CN201811535476.XA CN201811535476A CN109483040A CN 109483040 A CN109483040 A CN 109483040A CN 201811535476 A CN201811535476 A CN 201811535476A CN 109483040 A CN109483040 A CN 109483040A
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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
- B23K20/10—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating making use of vibrations, e.g. ultrasonic welding
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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
- B23K20/24—Preliminary treatment
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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
- B23K20/26—Auxiliary equipment
Abstract
A kind of welding method the invention discloses pure Zn as 55% enhancing aluminum-base composite material by silicon carbide particles of intermediate reaction material layer, base material to be welded is 55% enhancing aluminum-base composite material by silicon carbide particles, filtering out pure Zn foil according to the design condition of intermediate reaction material layer is intermediate reaction material layer, pure Zn foil is selected as intermediate reaction material layer and advantageously reduces welding temperature, it is easier to obtain the α-Al solid solution connector of full SiC particulate enhancing.In the case where suitable ultrasonic time and welding temperature, in conjunction with the process of the present invention " primary ultrasound connection; twice ultrasonic heat preservation ", obtain the α-Al solid solution connector of full SiC particulate enhancing, welding is completed under atmospheric environment without solder auxiliary, environmentally protective, this weld interval is short, joint mechanical property is high, and welding effect is good.
Description
Technical field
The present invention relates to enhancing aluminum-base composite material by silicon carbide particles welding technology fields, make more particularly, to a kind of pure Zn
For the welding method of 55% enhancing aluminum-base composite material by silicon carbide particles of intermediate reaction material layer.
Background technique
Enhancing aluminum-base composite material by silicon carbide particles (SiCp-Al) is strong because having low-density, low thermal coefficient of expansion, high ratio
It is high-intensitive, resistance to be widely used in the requirement such as Aeronautics and Astronautics for the performances such as degree and specific stiffness, high elastic modulus and good wearability
The structure devices of high temperature.It is also higher and higher to its welding requirements as the application of SiCp-Al composite material is more and more wider.
There are following when the During Welding Alumimium Matrix Composites of middle and high volume fraction are welded especially with soldering and routine TLP
Urgent problem: base material aluminium surface oxidation film to be welded being crushed and removing in 1. welding processes；2. liquid metal to
The segregation of the wetting of grain reinforced phase and interface cohesion, SiC particles reinforced phase in articulamentum.Base material surface to be welded is because causing
The presence of close oxidation film causes to hinder the contact between liquid intermediate reaction material layer and aluminium alloy in welding, causes smelting
Gold combines and is difficult to be formed.
55% enhancing aluminum-base composite material by silicon carbide particles is welded as base material to be welded, and 55%SiCp-Al is compound
Material reinforcement mutually belongs to the aluminum matrix composite of high-volume fractional, and the SiC particulate size in aluminum matrix composite is big, SiC particulate
It is more difficult to be detached from from base material to be welded, the flow resistance that when welding is subject to is big, and being hardly formed the equally distributed articulamentum of particle is
Full solid solution connector.
Summary of the invention
In view of the deficienciess of the prior art, the object of the present invention is to provide a kind of pure Zn as intermediate reaction material layer
The welding method of 55% enhancing aluminum-base composite material by silicon carbide particles can obtain the full solid solution connector of SiC particles reinforced,
Linker components are uniformly distributed, and joint mechanical property is good, and without solder auxiliary welding, environmentally protective, weld interval is short, welding effect
It is good.
To achieve the goals above, the technical scheme adopted by the invention is that: a kind of pure Zn is as intermediate reaction material layer
55% enhancing aluminum-base composite material by silicon carbide particles welding method, including base material to be welded and intermediate reaction material layer, to
Welding base metal selects 55% enhancing aluminum-base composite material by silicon carbide particles, comprising the following steps:
Intermediate reaction material layer screening step,
Condition one, the fusion temperature of intermediate reaction material layer is lower than 195-205 DEG C of base material fusing point to be welded or intermediate reaction
Eutectic temperature between material layer and base material essential element to be welded is lower than 150-300 DEG C of base material fusing point to be welded,
Condition two, the solid solubility maximum value between intermediate reaction material layer and base material essential element to be welded are at least up to
10%,
Condition three, the atomic radius of intermediate reaction material layer essential element and the Atomic radiuses difference maximum in base material to be welded
No more than 50pm,
Condition four, the difference in Electrode Potential between intermediate reaction material layer essential element and base material to be welded is at most in -0.8V
Within,
Intermediate reaction material layer at least meets three conditions in above four conditions, according to conditions above, selects intermediate
The reaction wood bed of material is pure Zn foil, selects membranaceous or sheet pure Zn foil as intermediate reaction material layer, intermediate reaction material layer
Thickness is set as 0.48-0.52mm；
The surface to be welded of base material to be welded is carried out mechanical grinding and ultrasonic cleaning by surface treatment step；
Assembling steps before welding, intermediate reaction material layer are clamped between the weld interface of two base materials to be welded, in
Between the reaction wood bed of material contact to form contact surface with the weld interface of base material to be welded, connected components to be welded are completed；
Connected components to be welded, are placed on the processing platform of ultrasonic welding system by upper machine fixing step, and make Ultrasonic probe
It is pressed on the top of connected components to be welded；Ultrasonic probe is applied into pressure, pressure value 0.1- to connected components longitudinal direction to be welded
0.2MPa；
Oxidation film and reinforced phase release steps are abolished, is conducted ultrasonic wave is welded to be welded group by Ultrasonic probe
Part treats weld assembly and carries out load ultrasound and induction heating, welds the power control of ultrasonic wave in 200-500W, welding ultrasound
The frequency of wave is controlled in 10-30kHz, while passing through induction heating equipment heating intermediate reaction material layer, induction heating equipment function
Rate control controls the reaction temperature of intermediate reaction material layer in 200-250kHz in 4-6kW, the control of induction heating equipment frequency
At 395-405 DEG C, Ultrasonic probe treats weld assembly and applies welding ultrasonic wave, and the oxidation film of base material to be welded occurs to be crushed,
The physical state of base material to be welded is solid-state, and the physical state of intermediate reaction material layer is semisolid, base material to be welded and centre
The reaction wood bed of material dissolves, and solid liquid interface is formed between base material and intermediate reaction material layer to be welded, generates liquid phase and forms company
Area is met, eutectic reaction occurs for base material to be welded and intermediate reaction material layer, and reaction equation is L → α-Al+ η-Zn, generates α-Al solid solution
Body, base material to be welded dissolve, and are detached from the SiC particulate in base material to be welded, and SiC particulate enters bonding pad, to be welded
The oxidation film for connecing base material is extruded the connected components to be welded, base material to be welded and intermediate reaction material under the action of welding ultrasonic wave
The realization of the bed of material is tentatively welded；
The redistribution step of reinforced phase, Ultrasonic probe treat weld assembly and continue to welding ultrasonic wave, welding ultrasound
In 200-500W, the frequency for welding ultrasonic wave is controlled in 10-30kHz the power control of wave, while passing through induction heating equipment liter
The reaction wood bed of material between middle benefit gas, induction heating equipment power control are controlled in 4-6kW, induction heating equipment frequency in 200-
250kHz, the physical state of base material to be welded are solid-state, and the reaction temperature of intermediate reaction material layer is controlled at 455-465 DEG C,
The physical state of intermediate reaction material layer is liquid, and α-Al solid solution grows to form articulamentum, the SiC particulate in base material to be welded
It is distributed in articulamentum, connected components isothermal solidification to be welded is completed, and the α-Al solid solution connector of full SiC particulate enhancing is obtained；
Wherein, in abolishing oxidation film and reinforced phase release steps, the effect that weld assembly applies welding ultrasonic wave is treated
Time is 8-12 seconds, and in the redistribution step of reinforced phase, the time for treating weld assembly application welding ultrasonic wave is 115-125
Second；
Weld assembly step is completed, cancels protecting going easy on weld assembly cancellation welding ultrasound to intermediate reaction material layer
Wave, holding treat weld assembly and apply pressure, be cooled to room temperature in atmospheric environment, obtain welding finished product.
In further technical solution, abolished in oxidation film and reinforced phase release steps described, the base material to be welded
It dissolves and spreads to the bonding pad respectively with the atom in the intermediate reaction material layer, bonding pad grows to form articulamentum；?
In the redistribution step of the reinforced phase, intermediate reaction material layer is fully converted to articulamentum, and intermediate reaction material layer disappears, institute
SiC particulate redistribution is stated in articulamentum, articulamentum forms the α-Al solid solution connector of the full SiC particulate enhancing.
In further technical solution, abolished in oxidation film and reinforced phase release steps described, the connected components to be welded
Gas is generated during the reaction, and the gas between base material and intermediate reaction material layer to be welded is under the action of welding ultrasonic wave
Connected components to be welded are discharged.
In further technical solution, the redistribution step of the reinforced phase, effect of the η-Zn in welding ultrasonic wave
Lower all is squeezed out connected components to be welded.
In further technical solution, the thickness of the intermediate reaction material layer selects 0.5mm.
In further technical solution, in abolishing oxidation film and reinforced phase release steps, it is preferable that the intermediate reaction
The reaction temperature of material layer is controlled at 400 DEG C, it is preferable that when applying the effect of the welding ultrasonic wave to the connected components to be welded
Between be 10 seconds；The reaction temperature of the redistribution step of the reinforced phase, intermediate reaction material layer is controlled at 460 DEG C, to be welded
The total time that component applies the effect of welding ultrasonic wave is 120 seconds.
In further technical solution, the intermediate reaction material layer is greater than the weld interface of the base material to be welded.
In further technical solution, the base material to be welded includes upper substrate base material to be welded and lower substrate mother to be welded
Material, upper substrate base material to be welded are placed in the upper surface of intermediate reaction material layer, and lower substrate base material to be welded is placed in intermediate reaction
Below material layer, upper substrate base material to be welded is sized to 16mm*16mm*3mm, the size of lower substrate base material to be welded
It is set as 20mm*20mm*3mm.
In further technical solution, in the surface treatment step, to the described to be welded of the base material to be welded
Face is polished, and the sand paper of 400-1500 mesh is selected to polish surface to be welded；It is 90- that base material to be welded, which is placed in concentration,
It is cleaned by ultrasonic in 100% acetone soln and using cleaning ultrasonic wave, the ultrasonic cleaning time is 10-20 minutes.
In further technical solution, in the upper machine fixing step, the pressure value of the Ultrasonic probe is arranged
For 0.15MPa.
After adopting the above structure, the invention has the advantages that compared with the prior art:
1. completing the welding of enhancing aluminum-base composite material by silicon carbide particles under atmospheric environment, full SiC particulate enhancing is obtained
α-Al solid solution connector, joint mechanical property is high, and weld interval is short, and welding effect is good.
2. in connected components to be welded apply welding ultrasound, welding ultrasound facilitate base material oxidation film to be welded abolish and will
Oxidation film squeezes out connected components to be welded, realizes the preliminary welding of connected components to be welded while reaching purification base material surface to be welded, thus
Obtain the α-Al solid solution connector of full SiC particulate enhancing.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is that welding ultrasonic wave auxiliary transition liquid phase diffusion weld of the invention connects structural schematic diagram.
Fig. 2 is Al-Zn binary phase diagraml of the invention.
Fig. 3-5 is to apply welding ultrasound at a temperature of welding temperature of the invention is separately positioned on 400 DEG C, 430 DEG C and 460 DEG C
5 seconds joints morphology schematic diagrames obtained.
Fig. 6 is the enlarged diagram at Fig. 3 b of the present invention.
Fig. 7 is that connected components to be welded of the invention apply obtaining for effect 10 seconds for primary welding ultrasonic wave under different welding temperatures
The shearing strength of joint relation schematic diagram arrived.
Fig. 8-9 is the Fracture Profile in Metallic Materials pattern schematic diagram of base material to be welded of the invention.
When Figure 10-11 is the effect that the welding temperature of present invention connected components to be welded is the primary welding ultrasonic wave of 400 DEG C of applications
Between be 5 seconds connector fracture apperance schematic diagrames.
Figure 12-14 is that the welding temperature of present invention connected components to be welded is 400 DEG C of works for applying primary welding ultrasonic wave respectively
The section structure pattern schematic diagram for being 10 seconds, 30 seconds and 60 seconds with the time.
Figure 15 is the enlarged diagram at Figure 12 A of the present invention.
Figure 16 is the enlarged diagram at Figure 14 A of the present invention.
Figure 17-18 is that the welding temperature of present invention connected components to be welded is 400 DEG C of works for applying primary welding ultrasonic wave respectively
The joints morphology schematic diagram for being 120 seconds and 300 seconds with the time.
Figure 19 is the enlarged diagram at Figure 17 b of the present invention.
Figure 20 is the enlarged diagram at Figure 18 d of the present invention.
Figure 21 is that the welding temperature of weld assembly of the present invention is 400 DEG C of effect different times for applying primary welding ultrasonic wave
With the relation schematic diagram of joints shear front line.
Figure 22-26 is that the welding temperature of present invention connected components to be welded is 400 DEG C of works for applying primary welding ultrasonic wave respectively
The connector fracture apperance schematic diagram for being 5 seconds, 10 seconds, 20 seconds, 30 seconds and 60 seconds with the time.
Figure 27 is the enlarged diagram at Figure 22 b of the present invention.
Figure 28-30 is distinguished after the welding temperature of connected components to be welded of the invention applies primary welding ultrasound 5 seconds at 400 DEG C
It is warming up to 430 DEG C of application secondary welding ultrasounds 240 seconds, the secondary weldering of application in 120 seconds and 490 DEG C of 460 DEG C of application secondary welding ultrasounds
Connect ultrasound 120 seconds.
Figure 31 is the enlarged diagram at Figure 30 d of the present invention.
Figure 32 is arranged not after the welding temperature of connected components to be welded of the invention applies primary welding ultrasound 10 seconds at 400 DEG C
With secondary welding temperature apply secondary welding ultrasound 120 seconds and the relation schematic diagram of shearing strength of joint.
Figure 33-35 is distinguished after the welding temperature of connected components to be welded of the invention applies primary welding ultrasound 10 seconds at 400 DEG C
It is warming up to 430 DEG C, 460 DEG C and 490 DEG C and applies the connector fracture apperance schematic diagram that secondary welding ultrasound obtains for 120 seconds.
Figure 36 is the enlarged diagram at Figure 35 d of the present invention.
In figure: 1, Ultrasonic probe 2, induction heating equipment 3, base material to be welded 4, intermediate reaction material layer.
Specific embodiment
It is only below presently preferred embodiments of the present invention, is not intended to limit the scope of the present invention.
Embodiment one
A kind of welding method of 55% enhancing aluminum-base composite material by silicon carbide particles of pure Zn as intermediate reaction material layer,
Shown in Fig. 1, including base material to be welded 3 and intermediate reaction material layer 4, base material 3 to be welded select 55% SiC particles reinforced aluminium
Based composites, comprising the following steps:
Intermediate reaction material layer screening step,
Condition one, the fusion temperature of intermediate reaction material layer 4 are lower than 195-205 DEG C of 3 fusing point of base material to be welded, or intermediate anti-
Answer the eutectic temperature between 3 essential element of material layer 4 and base material to be welded lower than 150-300 DEG C of base material fusing point to be welded；Condition
Two, the solid solubility maximum value between 3 essential element of intermediate reaction material layer 4 and base material to be welded is at least up to 10%；Condition three,
Atomic radiuses difference maximum in the atomic radius of 4 essential element of intermediate reaction material layer and base material 3 to be welded is no more than 50pm；Item
Part four, the difference in Electrode Potential between 4 essential element of intermediate reaction material layer and base material to be welded 3 are intermediate at most within -0.8V
The reaction wood bed of material 4 at least meets three conditions in above four conditions.
The design of material principle of intermediate reaction material layer mainly includes 4 aspects: 1) intermediate reaction material layer 4 has lower
3 essential element of fusion temperature or intermediate reaction material layer 4 and base material to be welded between eutectic temperature it is lower；2) intermediate anti-
Answering between 3 essential element of material layer 4 and base material to be welded has higher solid solubility, to form solid solution connector；3) intermediate reaction
4 essential element of material layer is close with the atomic radius in base material 3 to be welded, in the welding of isothermal solidification and homogenization of composition
Cheng Zhong, the atom in intermediate reaction material layer 4 is easy to spread into base material 3 to be welded, and forms solid solution and make joint performance
It improves；4) difference in Electrode Potential of 4 essential element of intermediate reaction material layer and base material 3 to be welded is close, to guarantee welding point
For corrosion resistance according to conditions above, selection intermediate reaction material layer 4 is pure Zn foil；Pure Zn foil be by purity be 98.7%~
99.99% zinc is made.
According to conditions above, selection intermediate reaction material layer 4 is pure Zn foil；Select pure Zn foil as intermediate reaction material layer
4 the reason of, is: the melting temperature of aluminium alloy be 660 DEG C, as shown in Fig. 2, the eutectic temperature of Zn and Al be 381 DEG C, Zn with it is to be welded
The eutectic temperature for connecing base material 3 is lower, and the eutectic temperature of Zn and Al are lower than 279 DEG C of aluminium alloy fusing point, eligible one；The atom of Zn
Radius is 134pm, the atomic radius of Al be 143pm, Zn and Al Atomic radiuses difference be the atomic radius of 9pm, Zn and Al more
It is close, eligible three；Solid solubility between Zn and the essential element Al of base material to be welded 3 reaches 83.1%, eligible two；
It selects pure zinc foil as intermediate reaction material layer 4, meets three conditions in four conditions, therefore select in pure zinc foil conduct
Between the reaction wood bed of material 4.
The thickness of intermediate reaction material layer 4 selects 0.48-0.52mm, selects membranaceous or sheet pure zinc foil as intermediate anti-
Answer material layer 4；Preferably, zinc foil selects zinc foil made of pure zinc, zinc foil with a thickness of 0.5mm.Intermediate reaction material layer 4 is greater than
The weld interface of base material 3 to be welded；Specifically, base material 3 to be welded includes upper substrate base material 3 to be welded and lower substrate mother to be welded
Material 3, upper substrate base material 3 to be welded are placed in the upper surface of intermediate reaction material layer 4, and lower substrate base material 3 to be welded is placed in centre
Below the reaction wood bed of material 4, upper substrate base material 3 to be welded is sized to 16mm*16mm*3mm, lower substrate base material to be welded
3 are sized to 20mm*20mm*3mm.
The surface to be welded of base material 3 to be welded is carried out mechanical grinding and ultrasonic cleaning by surface treatment step；Specifically, right
The surface to be welded of base material 3 to be welded is polished, and the sand paper of 400-1500 mesh is selected to polish surface to be welded；Mother to be welded
Material 3 be placed in concentration be 90-100% acetone soln in and using cleaning ultrasonic wave be cleaned by ultrasonic, ultrasonic cleaning the time be
10-20 minutes.Wherein, cleaning ultrasonic wave is the ultrasonic wave of ultrasonic generator generation and conducts to Ultrasonic probe 1 and cleaning
The ultrasonic wave in pond.
Connected components to be welded, are placed on the processing platform of ultrasonic welding system by upper machine fixing step, and make Ultrasonic probe 1
It is pressed on the top of connected components to be welded；Ultrasonic probe 1 is applied into pressure, pressure value 0.1- to connected components longitudinal direction to be welded
0.2MPa；Preferably, the pressure value of Ultrasonic probe 1 is set as 0.15MPa.
Oxidation film and reinforced phase release steps are abolished, is conducted ultrasonic wave is welded to be welded group by Ultrasonic probe 1
Part treats weld assembly and carries out load ultrasound and induction heating, welds the power control of ultrasonic wave in 200-500W, welding ultrasound
The frequency of wave is controlled in 10-30kHz, while passing through 2 liters of intermediate reaction material layers 4 of induction heating equipment, 2 function of induction heating equipment
Rate control is controlled in 4-6kW, 2 frequency of induction heating equipment in 200-250kHz, by the reaction temperature control of intermediate reaction material layer 4
System is at 395-405 DEG C, it is preferable that the reaction temperature of intermediate reaction material layer 4 is controlled at 400 DEG C, and Ultrasonic probe 1 is to be welded
Component applies welding ultrasonic wave, it is preferable that the action time that the connected components to be welded are applied with the welding ultrasonic wave is 10 seconds；
The oxidation film of base material 3 to be welded occurs to be crushed, and the physical state of base material 3 to be welded is solid-state, the physics of intermediate reaction material layer 4
State is semisolid, and base material 3 to be welded is dissolved with intermediate reaction material layer 4, base material 3 to be welded and intermediate reaction material layer
Solid liquid interface is formed between 4, is generated liquid phase and is formed bonding pad, base material 3 to be welded and the generation eutectic of intermediate reaction material layer 4 are anti-
It answers, reaction equation is L → α-Al+ η-Zn, generates α-Al solid solution, and base material 3 to be welded dissolves, makes in base material 3 to be welded
SiC particulate is detached from, and SiC particulate enters bonding pad, and the oxidation film of base material 3 to be welded is squeezed under the action of welding ultrasonic wave
The connected components to be welded out, base material 3 to be welded and the realization of intermediate reaction material layer 4 are tentatively welded；
Specifically, the atom in base material 3 to be welded and the intermediate reaction material layer 4 dissolves to the bonding pad expand respectively
It dissipates, bonding pad grows to form articulamentum；More specifically, being abolished under the action for the treatment of weld assembly and applying welding ultrasonic wave to be welded
The oxidation film on 3 surface of base material is connect, element counterdiffusion, intermediate reaction material occur between intermediate reaction material layer 4 and base material to be welded 3
Zn atom in the bed of material 4 is spread toward base material 3 to be welded, and the Al atom in base material 3 to be welded is spread toward intermediate reaction material layer 4,
The concentration of the interface Zn/Al Zn changes along Zn-Al binary phase diagraml liquidoid, as shown in Figure 2.When (welding temperature refers to welding temperature
Be intermediate reaction material layer 4 reaction temperature) be higher than Zn-Al eutectic temperature when, the interface Zn/Al is initially formed liquid phase,
Intermediate reaction material layer 4 and base material to be welded 3 are constantly dissolved into bonding pad, and bonding pad is broadening, at this time in base material 3 to be welded
SiC particulate will enter in liquid phase bonding pad.It uses when welding temperature is 400 DEG C of welding, applies weldering treating weld assembly
It connects while abolish oxidation film under the action of ultrasonic wave, is abolished in oxidation film and reinforced phase release steps described, it is described to be welded
Connected components generate gas during the reaction, and the gas between base material and intermediate reaction material layer to be welded is in welding ultrasonic wave
The lower discharge of effect connected components to be welded.Specifically, the gas between base material 3 to be welded and intermediate reaction material layer 4 is also with liquid phase
It is discharged inside articulamentum, thus there is no stomata in articulamentum joint microstructure, obtain flawless welding point.Because of welding temperature
420 DEG C of the fusing point lower than intermediate reaction material layer 4 but the eutectic temperature 381 higher than intermediate reaction material layer 4 and base material 3 to be welded
DEG C, it is not completely melt inside intermediate reaction material layer 4, the η-Zn of slabbing is first precipitated in intermediate reaction material layer 4, at interface
Place is alternately arranged because of intermediate reaction material layer 4 and the cooling generation eutectic reaction generation α-Al and η-Zn of the contact of base material to be welded 3
Laminar eutectic structure.
The redistribution step of reinforced phase, Ultrasonic probe treat weld assembly and continue to welding ultrasonic wave, welding ultrasound
In 200-500W, the frequency for welding ultrasonic wave is controlled in 10-30kHz the power control of wave, while passing through induction heating equipment liter
The reaction wood bed of material between middle benefit gas, induction heating equipment power control are controlled in 4-6kW, induction heating equipment frequency in 200-
250kHz, the physical state of base material 3 to be welded are solid-state, and the reaction temperature of intermediate reaction material layer 4 is controlled in 455-465
DEG C, it is preferable that the reaction temperature of intermediate reaction material layer controls and treats the work that weld assembly applies welding ultrasonic wave at 460 DEG C
Total time is 120 seconds.The physical state of intermediate reaction material layer 4 is liquid, and α-Al solid solution grows to form articulamentum, to
SiC particulate in welding base metal 3 is distributed in articulamentum, and connected components isothermal solidification to be welded is completed, and obtains the α-of full SiC particulate enhancing
Al solid solution connector；Intermediate reaction material layer 4 is fully converted to articulamentum, and intermediate reaction material layer 4 disappears, and α-Al is dissolved the bodily form
At articulamentum, SiC particulate is redistributed in articulamentum, and articulamentum forms the α-Al solid solution connector of full SiC particulate enhancing.η-Zn
All is squeezed out under the action of welding ultrasonic wave connected components to be welded.In this step, articulamentum is by α-Al solid solution and SiC
Grain composition is evenly distributed in the SiC particulate reinforced phase in articulamentum in articulamentum, obtains under the action of welding ultrasound
α-Al solid solution the joint microstructure of full SiC particulate enhancing.
Wherein, in abolishing oxidation film step, the action time for treating weld assembly application welding ultrasonic wave is 8-12 seconds,
In the redistribution step for abolishing oxidation film and reinforced phase release steps and reinforced phase, treats weld assembly and apply welding ultrasonic wave
Total time be 115-125 seconds；
Weld assembly step is completed, cancels protecting going easy on weld assembly cancellation welding ultrasound to intermediate reaction material layer 4
Wave, holding treat weld assembly and apply pressure, be cooled to room temperature in atmospheric environment, obtain welding finished product.
Welding method mechanism of the invention is as follows:
55% enhancing aluminum-base composite material by silicon carbide particles volume fraction is high, the silicon-carbide particle size in base material to be welded
Greatly, silicon-carbide particle is difficult to be detached from from base material to be welded, and the flow resistance that when welding is subject to is bigger, it more difficult to it is uniform to form particle
The full solid solution connector of the articulamentum of distribution.For the combination process of " primary ultrasound connection+twice ultrasonic heat preservation ", explores and be suitble to weldering
The technological parameter of 55% enhancing aluminum-base composite material by silicon carbide particles is connect, welding temperature, ultrasonic time and heat preservation are further studied
The technological parameters such as temperature make the affecting laws of joint microstructure and performance when intermediate reaction material layer 4 is welded to pure zinc foil.
The sandwich sample of 3/ intermediate reaction material layer of base material 4/ to be welded base material 3 to be welded is heated to different welding temperature
Degree applies welding ultrasonic welding.Selecting the pure zinc foil with a thickness of 0.5mm is large-sized SiC as intermediate reaction material layer 4
Grain release provides enough spaces to guarantee that particle can be freely accessible to be redistributed in articulamentum completely.
One, the influence of the welding temperature butt joint tissue of primary ultrasound and performance
Fig. 3-6 shows that connected components to be welded apply formed connector after welding ultrasonic wave acts on 5 seconds in different welding temperatures
Section structure pattern.When the welding temperature of connected components to be welded is 400 DEG C, filling is good inside the articulamentum of connected components to be welded
Good, joint microstructure is mainly Zn-Al eutectic and η-Zn solid solution.Due to intermediate reaction material layer 4 reaction temperature be 400 DEG C when
The action time for applying welding ultrasonic wave is very short, and the SiC particulate volume fraction in base material to be welded 3 is very high, and size compared with
Greatly, a small amount of SiC particulate enters inside articulamentum in base material 3 to be welded, while base material to be welded 3 and intermediate reaction material
Layer 4 in elements diffusion it is insufficient, a large amount of Zn-ef ficiency remains in inside connector in intermediate reaction material layer 4, as Fig. 3 with
Shown in Fig. 6.When the reaction temperature of intermediate reaction material layer 4 is 430 DEG C, since welding temperature is immediately beyond pure Zn foil fusing point 420
DEG C, under the action for the treatment of weld assembly application welding ultrasonic wave, 4 quilt of intermediate reaction material layer of the pure Zn foil liquid just melted
It directly extrudes, the content of Zn inside connector is caused to decline.Exactly because Zn is extruded the liquid gold for causing to fill articulamentum
Belong to and deficiency occur, is locally starting the defects of shrinkage cavity occur, as shown in Figure 4.Welding temperature is 430 DEG C compared with 400 DEG C, welding
The promotion of temperature makes the Al elements diffusion in more base materials 3 to be welded enter articulamentum and α-Al solid solution is precipitated.Work as welding
When temperature is improved to 460 DEG C, since welding temperature is much higher than the fusing point of Zn foil, so liquid phase is in welding ultrasonic wave in articulamentum
Effect is lower all is squeezed out articulamentum, so that occurring the non-soldering region of large area inside connector, as shown in Figure 5.
As shown in fig. 7, shearing strength of joint gradually decreases with the promotion of welding temperature, it is 400 DEG C in welding temperature
When, connected components to be welded are capable of forming that SiC particulate is evenly distributed and flawless jointing, intensity reach maximum value and is
150MPa, base material shear strength to be welded are 190MPa, and it is multiple that the shear strength of connector reaches 55% SiC particle-reinforced Al matrix
The 79% of condensation material.In order to compare connector fracture apperance, treats welding base metal 3 and also carry out shearing test and observation period fracture, hair
SiC particulate inside existing 3 fracture of base material to be welded is comparatively smooth, and a small amount of aluminium base body tissue is adhered on surface, such as Fig. 8-9 institute
Show；And welding temperature is SiC particulate table in 400 DEG C of connector fractures for treating weld assembly application welding ultrasonic wave effect 5 seconds
Face is simultaneously rough, adheres to a large amount of η-Zn tissue, as shown in figs. 10-11.
Two, the influence of ultrasonic time butt joint tissue and performance
55% volume-fraction carborundum reinforced aluminum matrix composites since its SiC particulate volume fraction is high, size is big,
The surface of base material 3 to be welded exposes a large amount of exposed SiC particulates, if treating weld assembly applies welding ultrasonic wave action time
It is short, effective welding can not be formed.Therefore need to treat weld assembly extend apply welding ultrasonic wave action time come obtain compared with
Welding temperature is arranged in the connected components to be welded of 55%SiCp-Al/Zn/55%SiCp-Al sandwich sample by high strength of joint
400 DEG C, the action time that weld assembly applies different welding ultrasonic waves is treated, to probe into welding ultrasonic time butt joint tissue
With the affecting laws of performance.
The reaction temperature of intermediate reaction material layer is 400 DEG C, after treating weld assembly application welding ultrasonic wave effect 5 seconds,
Connector is mainly made of Zn-Al eutectic structure with the η-Zn solid solution not spread completely, as seen in figures 3-6.If to be welded group
Part applied the extended durations of action for welding ultrasonic wave to 10 seconds, and interior connector is mainly Zn-Al eutectoid structure and a small amount of remaining η-
Zn solid solution, while SiC particulate also enters inside articulamentum, as shown in figures 12 and 15.It treats weld assembly and applies welding ultrasound
After wave acts on 20 seconds, joint microstructure is mainly the α-Al solid solution grown from 3 two sides of base material to be welded and articulamentum center
A small amount of eutectoid structure, SiC particulate is still without largely entering inside articulamentum.
With the extended durations of action for treating weld assembly application welding ultrasonic wave, base material 3 to be welded and centre are accelerated
The phase counterdiffusion of element between the reaction wood bed of material 4, connection composition of layer point are gradually mobile to 3 side of base material to be welded.Due to SiC
Particle size is larger, and two sides 3 corrosion of base material to be welded, which is not enough to lead to not to discharge particle completely, to be entered inside articulamentum.It treats
After weld assembly applies the 30 seconds action time of welding ultrasonic wave, α-Al solid solution, base material 3 to be welded are essentially inside articulamentum
SiC particulate largely enter inside articulamentum, articulamentum width gradually expands, as shown in figure 13.It treats weld assembly and applies weldering
After connecing the 60 seconds action time of ultrasonic wave, due to treat weld assembly continuously apply welding ultrasonic wave action time it is too long, connection
Liquid phase is almost all squeezed out in layer, leads to fail effectively to fill the gap between base material 3 to be welded, causes to occur in articulamentum
Hole defect, as shown in figs. 14 and 16.
Since the reinforced particulate size in 55%SiC particle enhanced aluminum-based composite material is larger, the average grain of SiC particulate
Diameter is 30 μm, and volume fraction is higher, and volume fraction is higher to refer to that SiC particulate is more than the ratio of parent metal, therefore intermediate
Phase counterdiffusion is more difficult between 4 element of the reaction wood bed of material and 3 element of base material to be welded.SiC particulate volume fraction in connector
The further up identical order of magnitude reached with SiC particulate volume fraction in base material 3 to be welded, the order of magnitude refer to SiC
Grain volume fraction accounting about 50%-55%, but there are still a certain amount of concretionary by remaining liquid phase in articulamentum
Eutectic structure, as shown in figures 17 and 19.Continue to extend the action time for treating weld assembly application welding ultrasonic wave to 120 seconds
Afterwards, eutectic structure disappears, articulamentum liquid phase isothermal solidification, promotes the counterdiffusion of joint microstructure inner element, keeps ingredient more equal
It homogenizes, as shown in figs. 18.Treat welding base metal 3 apply welding ultrasonic wave action time reach 300 seconds after, articulamentum liquid phase
Complete isothermal solidification occurs, forms α-Al solid solution, but treats weld assembly and applies welding ultrasonic wave for a long time
Effect causes Partial Liquid Phase to squeeze out out of articulamentum, so that the liquid phase in connector articulamentum is reduced, lack of fill causes to connect
The SiC particulate and α-Al connect in layer does not soak to form micro-crack, so that strength of joint reduces.
Figure 21 is time and the shearing strength of joint relationship treated weld assembly and apply welding ultrasonic wave.With to be welded
Component applies the extended durations of action of welding ultrasonic wave, and jointing shear strength slowly declines after first rising, to be welded
The action time of component application welding ultrasonic wave reaches peak 162MPa when being 30 seconds.When treating, weld assembly application welding is super
The action time of sound wave is more than after 30 seconds, and the effect for treating the prolonged welding ultrasonic wave of weld assembly application causes in articulamentum
Partial Liquid Phase is extruded, liquid phase lack of fill, is not soaked face between SiC particulate and liquid phase and is formed part micro-crack, causes connector
Strength reduction.Figure 22-27, which gives, treats joint breaking path and shearing that weld assembly applies different welding ultrasonic times
Fracture apperance.Treating weld assembly respectively to apply welding ultrasonic time 5 seconds and connect layer tissue after 10 seconds is mainly Zn-Al eutectic
Tissue with η-Zn based on, SiC particulate distribution it is less；After treating the 20 seconds action time that weld assembly applies welding ultrasonic wave, even
It connects in layer shear fracture and α-Al solid solution body tissue occurs, distribution of particles gradually increases；It treats weld assembly and applies welding ultrasonic wave
Action time 30 seconds, almost all is α-Al solid solution inside articulamentum, and distribution of particles is more and disperses；Treat weld assembly
After 60 seconds action time for applying welding ultrasonic wave, SiC particulate is distributed in articulamentum more to be concentrated.Therefore with to be welded
Component applies the extension of the action time of welding ultrasonic wave, and fracture apperance tissue is α-Al tissue by eutectic and η-Zn phase transition,
SiC particulate volume fraction increases simultaneously, degree of scatter improves, but treats weld assembly and applied prolonged welding ultrasound and can lead
It causes the liquid phase filled in articulamentum largely to be squeezed out, reduces connection effect.
Three, the influence of twice ultrasonic heating treatment butt joint tissue and performance
Welding temperature is sensitive on the influence of the performance of jointing, and welding temperature is too low to be not enough to realize that base material 3 to be welded is molten
The a large amount of release SiC particulates of solution to fusing intermediate reaction material layer 4 and in the liquid phase that is formed, ultimately form SiC particulate and uniformly divide
The jointing of cloth；If welding temperature is high, the liquid phase in articulamentum, which is easily extruded, causes liquid phase to reduce, and filler particles are insufficient.If
Ideal connection is realized in the case where welding temperature height, need to treat the work that weld assembly applies very long welding ultrasonic wave
Isothermal solidification is completed with the time, to obtain the connector of even tissue, but SiC particulate is considerably less in the jointing, this is
Because welding temperature is too low, base material 3 to be welded, which dissolves, limited can not discharge enough SiC particles reinforced phases；If improving welding
Temperature, the liquid phase under high temperature in articulamentum squeeze out under the action of pressure and welding ultrasound, lead to two sides base material 3 to be welded directly
It contacts and does not become effective connection.
On the basis of ultrasound heat preservation Joining Technology is once welded in above-mentioned application, further promotes welding temperature and apply two
Secondary welding ultrasound, verifying apply the influence that secondary welding ultrasound promotes welding temperature butt joint tissue and performance.Figure 28-31 be
It treats weld assembly to apply on the basis of primary 10 seconds welding temperatures of welding ultrasound are 400 DEG C of connections, further by welding temperature
It is warming up to 430 DEG C, 460 DEG C, 490 DEG C of articulamentum tissue topography respectively.With the raising of welding temperature, articulamentum width is gradually
Increase, ingredient is more uniform, and the ratio that the α-Al solid solution that SiC particulate enhances in articulamentum occupies increased significantly, and SiC particulate exists
Volume fraction in articulamentum moves closer to base material 3SiC grain volume fraction to be welded.
Figure 32 is to treat weld assembly application secondary welding ultrasound heating welding temperature to carry out heat preservation and shearing strength of joint
The relation schematic diagram of relationship change.It treats weld assembly and treats weld assembly application secondary welding under 460 DEG C of welding temperature
The shearing strength of joint peak obtained behind effect 120 seconds of ultrasonic wave is 186MPa, and the shearing for having reached base material to be welded is strong
The 97.8% of degree.Figure 33-36 be treat weld assembly apply secondary welding ultrasound heat up respectively weld 430 DEG C of holding temperature, 460
DEG C and 490 DEG C of articulamentum shear fracture tissue microscopic appearances, three kinds of connector fracture apperances be mainly α-Al solid solution with SiC
Grain.The heat preservation of secondary temperature elevation welding temperature still has small part eutectic structure, secondary temperature elevation welding temperature in 430 DEG C of connector
Heat preservation is completely disappeared in 460 DEG C or more eutectic structures, forms full α-Al solid solution connector.
Welding method of the invention, which can be divided into, abolishes oxidation film and reinforced phase release steps, the redistribution step of reinforced phase
With completion weld assembly step.If being kept the temperature to intermediate 4 primary heating of reaction material layer and treating weld assembly and apply welding ultrasound
Connection finishes rear joint and directly cools down, and elder generation's cooled and solidified forms eutectic structure and α-Al phase, these line and staff controls at linkage interface
Gradually form and pushed SiC particulate mobile to articulamentum center, cause SiC particulate segregation in articulamentum center, articulamentum
Final tissue is SiC particulate, η-Zn, α-Al and mixed eutectic structure.If treating weld assembly applies primary welding ultrasound
Continue to carry out heating and heat preservation to the reaction temperature of intermediate reaction material layer 4 after connection and treats the secondary weldering of weld assembly application
Ultrasonic treatment is connect, i.e., using " primary ultrasound connection+twice ultrasonic heat preservation " combination process, then can promote connector element and constantly expand
It dissipates, ingredient tends to homogenize, and connector moves closer to base material 3 to be welded, while silicon-carbide particle redistributes, and avoids distribution of particles
Unevenness finally obtains the full articulamentum tissue morphology of evenly dispersed SiC particulate.Welding ultrasound in the present invention is in intermediate reaction material
The effect in the bed of material 4 and the differential responses stage of base material 3 to be welded be it is different, present invention process can be summarized as primary ultrasound even
It connects, the NEW TYPE OF COMPOSITE technique of twice ultrasonic heat preservation.In the effect for abolishing the welding ultrasound in oxidation film and reinforced phase release steps
It is to remove oxide film dissolving using the cavitation effect of ultrasonic wave, which is primary ultrasound connection；It is walked in the redistribution of reinforced phase
The effect of welding ultrasound in rapid is the eutectic liquid for forming intermediate reaction material layer 4 and base material 3 to be welded during the reaction
Squeeze out connector mutually to form full solid solution connector, which is twice ultrasonic holding stage.
Embodiment two
The primary structure, principle and effect of the present embodiment are the same as example 1, and which is not described herein again, difference
It is,
In abolishing oxidation film and reinforced phase release steps, the physical state of base material 3 to be welded is solid-state, intermediate reaction material
The physical state of the bed of material 4 is solid-state；
In the redistribution step of reinforced phase, the physical state of base material 3 to be welded is solid-state, and intermediate reaction material layer 4 disappears
Lose the α-Al solid solution connector for being converted into full SiC particulate enhancing, the physical state of the α-Al solid solution connector of full SiC particulate enhancing
For solid-state；
In completing weld assembly step, the physical state of base material 3 to be welded is solid-state, the α-Al of full SiC particulate enhancing
The physical state of solid solution connector is solid-state.
Embodiment three
The primary structure, principle and effect of the present embodiment are the same as example 1, and which is not described herein again, difference
It is, in abolishing oxidation film step, the reaction temperature of intermediate reaction material layer 4 is controlled at 400 DEG C, treats weld assembly application
The action time for welding ultrasonic wave is 10 seconds；In the redistribution step for abolishing oxidation film Yu reinforced phase release steps and reinforced phase
In, the effect total time for treating weld assembly application welding ultrasonic wave is 120 seconds, the reaction temperature control of intermediate reaction material layer 4
System is at 460 DEG C.
Example IV
The primary structure, principle and effect of the present embodiment are the same as example 1, and which is not described herein again, difference
It is, in abolishing oxidation film step, the reaction temperature of intermediate reaction material layer 4 is controlled at 395 DEG C, treats weld assembly application
The action time for welding ultrasonic wave is 10 seconds；In the redistribution step for abolishing oxidation film Yu reinforced phase release steps and reinforced phase
In, the effect total time for treating weld assembly application welding ultrasonic wave is 120 seconds, the reaction temperature control of intermediate reaction material layer 4
System is at 455 DEG C.
Embodiment five
The primary structure, principle and effect of the present embodiment are the same as example 1, and which is not described herein again, difference
It is, in abolishing oxidation film step, the reaction temperature of intermediate reaction material layer 4 is controlled at 405 DEG C, treats weld assembly application
The action time for welding ultrasonic wave is 10 seconds；In the redistribution step for abolishing oxidation film Yu reinforced phase release steps and reinforced phase
In, the effect total time for treating weld assembly application welding ultrasonic wave is 120 seconds, the reaction temperature control of intermediate reaction material layer 4
System is at 465 DEG C.
The above is only a preferred embodiment of the present invention, for those of ordinary skill in the art, according to the present invention
Thought, there will be changes in the specific implementation manner and application range, and the content of the present specification should not be construed as to the present invention
Limitation.
Claims (10)
1. a kind of welding method of pure Zn as 55% enhancing aluminum-base composite material by silicon carbide particles of intermediate reaction material layer, packet
Base material and intermediate reaction material layer to be welded is included, base material to be welded selects 55% enhancing aluminum-base composite material by silicon carbide particles,
It is characterized in that: including the following steps,
Intermediate reaction material layer screening step,
Condition one, the fusion temperature of intermediate reaction material layer is lower than 195-205 DEG C of base material fusing point to be welded or intermediate reaction material
Eutectic temperature between layer and base material essential element to be welded is lower than 150-300 DEG C of base material fusing point to be welded,
Condition two, the solid solubility maximum value between intermediate reaction material layer and base material essential element to be welded are at least up to 10%,
Condition three, atomic radius and the Atomic radiuses difference in base material to be welded of intermediate reaction material layer essential element most very much not surpass
50pm is crossed,
Condition four, the difference in Electrode Potential between intermediate reaction material layer essential element and base material to be welded at most within -0.8V,
Intermediate reaction material layer at least meets three conditions in above four conditions, according to conditions above, selects intermediate reaction
Material layer is pure Zn foil, selects membranaceous or sheet pure Zn foil as intermediate reaction material layer, the thickness of intermediate reaction material layer
It is set as 0.48-0.52mm；
The surface to be welded of base material to be welded is carried out mechanical grinding and ultrasonic cleaning by surface treatment step；
Assembling steps before welding, intermediate reaction material layer are clamped between the weld interface of two base materials to be welded, intermediate anti-
Material layer is answered to contact to form contact surface with the weld interface of base material to be welded, connected components to be welded are completed；
Connected components to be welded, are placed on the processing platform of ultrasonic welding system by upper machine fixing step, and compress Ultrasonic probe
On the top of connected components to be welded；Ultrasonic probe is applied into pressure, pressure value 0.1- to connected components longitudinal direction to be welded
0.2MPa；
Oxidation film and reinforced phase release steps are abolished, is conducted ultrasonic wave is welded to connected components to be welded by Ultrasonic probe, it is right
Connected components to be welded carry out load ultrasound and induction heating, weld the power control of ultrasonic wave in 200-500W, weld ultrasonic wave
Frequency is controlled in 10-30kHz, while passing through induction heating equipment heating intermediate reaction material layer, induction heating equipment power control
System exists the reaction temperature control of intermediate reaction material layer in 200-250kHz in 4-6kW, the control of induction heating equipment frequency
395-405 DEG C, Ultrasonic probe treats weld assembly and applies welding ultrasonic wave, and the oxidation film of base material to be welded occurs to be crushed, to
The physical state of welding base metal is solid-state, and the physical state of intermediate reaction material layer is semisolid, and base material to be welded and centre are anti-
It answers material layer to dissolve, forms solid liquid interface between base material and intermediate reaction material layer to be welded, generate liquid phase and form connection
Eutectic reaction occurs for area, base material to be welded and intermediate reaction material layer, and reaction equation is L → α-Al+ η-Zn, generates α-Al solid solution
Body, base material to be welded dissolve, and are detached from the SiC particulate in base material to be welded, and SiC particulate enters bonding pad, to be welded
The oxidation film for connecing base material is extruded the connected components to be welded, base material to be welded and intermediate reaction material under welding ultrasonic wave effect
The realization of layer is tentatively welded；
The redistribution step of reinforced phase, Ultrasonic probe treat weld assembly and continue to welding ultrasonic wave, weld ultrasonic wave
Power control is controlled in 200-500W, the frequency for welding ultrasonic wave in 10-30kHz, while by induction heating equipment heating
Between the reaction wood bed of material, induction heating equipment power control in 4-6kW, the control of induction heating equipment frequency in 200-250kHz, to
The physical state of welding base metal is solid-state, by the control of the reaction temperature of intermediate reaction material layer at 455-465 DEG C, intermediate reaction material
The physical state of the bed of material is liquid, and α-Al solid solution grows to form articulamentum, and the SiC particulate in base material to be welded is distributed in connection
Layer, connected components isothermal solidification to be welded are completed, and the α-Al solid solution connector of full SiC particulate enhancing is obtained；
Wherein, in abolishing oxidation film and reinforced phase release steps, the action time that weld assembly applies welding ultrasonic wave is treated
It is 8-12 seconds, in the redistribution step of reinforced phase, the time for treating weld assembly application welding ultrasonic wave is 115-125 seconds；
Weld assembly step is completed, cancels protecting going easy on weld assembly cancellation welding ultrasonic wave to intermediate reaction material layer, protects
It holds and treats weld assembly application pressure, be cooled to room temperature in atmospheric environment, obtain welding finished product.
2. a kind of pure Zn according to claim 1 is multiple as 55% SiC particle-reinforced Al matrix of intermediate reaction material layer
The welding method of condensation material, it is characterised in that: abolished in oxidation film and reinforced phase release steps described, the base material to be welded
It dissolves and spreads to the bonding pad respectively with the atom in the intermediate reaction material layer, bonding pad grows to form articulamentum；?
In the redistribution step of the reinforced phase, intermediate reaction material layer is fully converted to articulamentum, and intermediate reaction material layer disappears, institute
SiC particulate redistribution is stated in articulamentum, articulamentum forms the α-Al solid solution connector of the full SiC particulate enhancing.
3. a kind of pure Zn according to claim 1 is multiple as 55% SiC particle-reinforced Al matrix of intermediate reaction material layer
The welding method of condensation material, it is characterised in that: abolished in oxidation film and reinforced phase release steps described, the connected components to be welded
Gas is generated during the reaction, and the gas between base material and intermediate reaction material layer to be welded is under the action of welding ultrasonic wave
Connected components to be welded are discharged.
4. a kind of pure Zn according to claim 3 is multiple as 55% SiC particle-reinforced Al matrix of intermediate reaction material layer
The welding method of condensation material, it is characterised in that: the redistribution step of the reinforced phase, effect of the η-Zn in welding ultrasonic wave
Lower all is squeezed out connected components to be welded.
5. a kind of pure Zn according to claim 1 is multiple as 55% SiC particle-reinforced Al matrix of intermediate reaction material layer
The welding method of condensation material, it is characterised in that: the thickness of the intermediate reaction material layer selects 0.5mm.
6. 55% SiC particles reinforced of a kind of pure Zn described in one of -5 as intermediate reaction material layer according to claim 1
The welding method of aluminum matrix composite, it is characterised in that: in abolishing oxidation film and reinforced phase release steps, it is preferable that described
The reaction temperature of intermediate reaction material layer is controlled at 400 DEG C, it is preferable that applies the welding ultrasonic wave to the connected components to be welded
Action time be 10 seconds；
The reaction temperature of the redistribution step of the reinforced phase, intermediate reaction material layer is controlled at 460 DEG C, is treated weld assembly and is applied
Be welded with connect ultrasonic wave effect total time be 120 seconds.
7. a kind of pure Zn according to claim 6 is multiple as 55% SiC particle-reinforced Al matrix of intermediate reaction material layer
The welding method of condensation material, it is characterised in that: the intermediate reaction material layer is greater than the weld interface of the base material to be welded.
8. a kind of pure Zn according to claim 7 is multiple as 55% SiC particle-reinforced Al matrix of intermediate reaction material layer
The welding method of condensation material, it is characterised in that: the base material to be welded includes that upper substrate base material to be welded and lower substrate are to be welded
Base material, upper substrate base material to be welded are placed in the upper surface of intermediate reaction material layer, and lower substrate base material to be welded is placed in intermediate anti-
It answers below material layer, upper substrate base material to be welded is sized to 16mm*16mm*3mm, the ruler of lower substrate base material to be welded
It is very little to be set as 20mm*20mm*3mm.
9. a kind of pure Zn according to claim 8 is multiple as 55% SiC particle-reinforced Al matrix of intermediate reaction material layer
The welding method of condensation material, it is characterised in that: in the surface treatment step, to the described to be welded of the base material to be welded
Face is polished, and the sand paper of 400-1500 mesh is selected to polish surface to be welded；It is 90- that base material to be welded, which is placed in concentration,
It is cleaned by ultrasonic in 100% acetone soln and using cleaning ultrasonic wave, the ultrasonic cleaning time is 10-20 minutes.
10. a kind of 55% SiC particle-reinforced Al matrix of the pure Zn according to claim 9 as intermediate reaction material layer
The welding method of composite material, it is characterised in that: in the upper machine fixing step, the pressure value of the Ultrasonic probe is set
It is set to 0.15MPa.
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| CN113385805A (en) * | 2021-06-15 | 2021-09-14 | 上海交通大学 | Welding method of 65% silicon carbide particle reinforced aluminum matrix composite material with pure Al as intermediate material layer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1792531A (en) * | 2005-12-30 | 2006-06-28 | 哈尔滨工业大学 | Filling composite welding flux vibrating liquid phase welding method for non-continuous strengthening aluminium base composite material |
| CN102658411A (en) * | 2012-05-24 | 2012-09-12 | 哈尔滨工业大学 | Ultrasonic brazing method for high-volume-fraction silicon carbide particle enhanced aluminum-base composite and low-expansion alloy |
| CN103894719A (en) * | 2014-03-04 | 2014-07-02 | 华南理工大学 | Method for connecting high-volume-fraction silicon carbide particle reinforcement aluminum matrix composite and titanium alloy |
| US20160052098A1 (en) * | 2014-08-21 | 2016-02-25 | Chen-Chia Chou | Tool unit applied to ultrasonic machining |
| CN108637451A (en) * | 2018-05-28 | 2018-10-12 | 东莞市新玛博创超声波科技有限公司 | A kind of method of low temperature ultrasonic auxiliary magnesium alloy welding |
-
2018
- 2018-12-14 CN CN201811535476.XA patent/CN109483040A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1792531A (en) * | 2005-12-30 | 2006-06-28 | 哈尔滨工业大学 | Filling composite welding flux vibrating liquid phase welding method for non-continuous strengthening aluminium base composite material |
| CN102658411A (en) * | 2012-05-24 | 2012-09-12 | 哈尔滨工业大学 | Ultrasonic brazing method for high-volume-fraction silicon carbide particle enhanced aluminum-base composite and low-expansion alloy |
| CN103894719A (en) * | 2014-03-04 | 2014-07-02 | 华南理工大学 | Method for connecting high-volume-fraction silicon carbide particle reinforcement aluminum matrix composite and titanium alloy |
| US20160052098A1 (en) * | 2014-08-21 | 2016-02-25 | Chen-Chia Chou | Tool unit applied to ultrasonic machining |
| CN108637451A (en) * | 2018-05-28 | 2018-10-12 | 东莞市新玛博创超声波科技有限公司 | A kind of method of low temperature ultrasonic auxiliary magnesium alloy welding |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113385805A (en) * | 2021-06-15 | 2021-09-14 | 上海交通大学 | Welding method of 65% silicon carbide particle reinforced aluminum matrix composite material with pure Al as intermediate material layer |
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