CN103464927A - Aluminum silicon copper cerium brazing filler metal for brazing of silicon carbide particle reinforced aluminum matrix composite material and preparation method thereof - Google Patents
Aluminum silicon copper cerium brazing filler metal for brazing of silicon carbide particle reinforced aluminum matrix composite material and preparation method thereof Download PDFInfo
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Abstract
The invention provides an aluminum silicon copper cerium brazing filler metal for brazing of a silicon carbide particle reinforced aluminum matrix composite material and a preparation method thereof. The preparation method comprises the steps of placing pure Al and Al-20Si alloy into a crucible of a vacuum induction smelting furnace and leading high-purity argon gas into the crucible after vacuum pumping; quickly heating alloy to completely smelt the alloy, placing pure Cu into molten Al-Si alloy liquid through a feeding device on the induction smelting furnace to form Al-Si-Cu molten alloy; adding Al-10Ce alloy after even smelting, enabling the Al-10Ce alloy to react with the Al-Si-Cu molten alloy fully, performing magnetic stirring, keeping the temperature for 30-40 minutes, performing pouring and enabling a reactant to be cooled and solidified at the argon gas atmosphere; performing re-melting for two times by means of the same method and finally forming a rodlike material through pouring. The brazing filler metal contains few components , the smelting temperature is low, the wettability is good, a SiCp/Al composite material which is difficultly welded and formed can form a good welding connector by using the brazing filler metal at the temperature of about 580 DEG C, and the brazing filler metal is suitable for popularization and application.
Description
Technical field
The present invention relates to a kind of enhancing aluminum-base composite material by silicon carbide particles (hereinafter to be referred as SiC
p/ Al) welding field, for SiC
pthe soldering field of/Al composite is a kind of aluminium copper silicon cerium solder, the particularly a kind of copper silicon of the aluminium for enhancing aluminum-base composite material by silicon carbide particles soldering cerium solder and preparation method thereof containing Rare-Earth Ce.
Background technology
Volume fraction accounts for the high-volume fractional SiC of 55%-70%
pthe high heat conduction that/Al composite has, the characteristics such as low bulk and low-density, and mature preparation process, raw material sources is abundant etc., and advantage makes it be with a wide range of applications in the electronic package material field.Especially have especially irreplaceable superiority at aerospace field, in national energy-saving reduction of discharging at present, under the overall background of military equipment upgrading, composite more shows its critical role as outstanding electronic package material.But its weldability is very poor, becomes and limit the bottleneck problem that it is applied.Soldering is most popular connection technique in the microelectronics Packaging field, but lacks at present the suitable solder of brazing temperature between 500 ℃-600 ℃ with the soldering for this kind of composite.
Soldering SiC
pin the solder of/Al composite, the Al-Si-Cu brazing filler metal is most widely used, the eutectic solder that wherein composition is Al-5.5Si-28Cu, eutectic temperature is 525 ℃, meets the temperature requirement of soldering, and Cu add the mobility that has increased solder, but the CuAl generated
2intermetallic compound fragility is larger, must be optimized its composition.Rare earth can significantly improve the metallographic structure of aluminium alloy, and crystal grain thinning is removed gas and objectionable impurities in aluminium alloy, improves the intensity of aluminium alloy, improves processing characteristics, plasticity, and improve intensity and toughness.The present invention is by being optimized Al-5.5Si-28Cu eutectic solder composition, the aluminium copper silicon cerium solder that has prepared many groups of different Rare-Earth Ce content, microscopic examination and correlated performance test result show to add the performance that appropriate Rare-Earth Ce contributes to improve brazing filler metal alloy, the soldering experimental result shows, aluminium copper silicon cerium solder is a kind of SiC of being applicable to
pthe novel solder that/Al composite connects.
Summary of the invention
In sum, the objective of the invention is in conjunction with adding the benefit of rare earth in aluminium alloy, and the problem of existing Al-Si-Cu brazing filler metal existence, the rule that affects by research different content rare earth on aluminium copper silicon cerium solder performance, and studied a kind of copper silicon of the aluminium for enhancing aluminum-base composite material by silicon carbide particles soldering cerium solder and preparation method thereof, and prepared one group of aluminium copper silicon cerium solder containing Rare-Earth Ce, also use this kind of solder to SiC
p/ Al composite has carried out the soldering experiment, proves that the aluminium copper silicon cerium brazing filler metal alloy adopted has lower fusing point and stronger wettability, is applicable to the soldering processes of enhancing aluminum-base composite material by silicon carbide particles.
Technical scheme of the present invention realizes in the following manner:
A kind of copper silicon of the aluminium for enhancing aluminum-base composite material by silicon carbide particles soldering cerium solder, wherein, the melting solder is raw materials used is: the Cu that purity is 99.99%, the Al that purity is 99.99%, Al-Si alloy, Al-Ce intermediate alloy.
Further, described aluminium copper silicon cerium solder contains the Cu of mass fraction 26.0%～28.0%, the Si of mass fraction 4.5%～6.5%, and the Ce of mass fraction 0.01%-0.5%, surplus is Al.
Further, described alusil alloy is the Al-20Si alloy, and the mass fraction that in the Al-20Si alloy, the mass fraction of Al is 80%, Ce is 20%;
Further, described aluminium cerium intermediate alloy is the Al-10Ce intermediate alloy, and the mass fraction that in the Al-10Ce intermediate alloy, the mass fraction of Al is 90%, Ce is 10%.
A kind of preparation method of the copper silicon of the aluminium for enhancing aluminum-base composite material by silicon carbide particles soldering cerium solder comprises the following steps:
1) pure Al and alusil alloy are placed in the crucible of vacuum induction melting furnace, after vacuumizing, are filled with high-purity argon gas;
2) quickly heat up to 750～800 ℃, make the alloy melting in crucible complete, then by the feeding device on induction furnace, pure Cu is joined in the Al-Si aluminium alloy of melting, form the Al-Si-Cu alloy molten solution;
3) after fusing evenly, vacuum induction melting furnace is warming up to 800 ℃ of left and right, and make temperature stabilization, and then by feeding device, add aluminium cerium intermediate alloy, it is fully reacted with the Al-Si-Cu alloy molten solution, magnetic agitation in addition, prevent the rare earth segregation, rare earth be diffused into rapidly in melt equably, subsequently under 600～650 ℃ the insulation 30-40min after standing about 2 minutes, pour into a mould into metal type dies cooled and solidified in argon gas atmosphere;
4) take out brazing filler metal alloy and remove remelting twice after the same method after surperficial oxide skin, make each diffusion of components even, finally pour into bar-shapedly, obtain aluminium copper silicon cerium solder.
Good effect of the present invention is:
1, by formulating special smelting technology, to have solved in the past in the solder method of smelting standardization poor in the present invention; the shortcoming that operability is not strong; adopt the atmosphere of inert gases protection to reduce the brazing filler metal alloy burn out rate simultaneously; the interference of the elements such as Na, K to the RE Modified effect when also having avoided the introducing of impurity and having adopted protection salt melting solder in the past; reduce influence factor, improved the precision of experimental study.The aluminium copper silicon cerium brazing filler metal alloy adopted has lower fusing point and stronger wettability, is applicable to the soldering processes of enhancing aluminum-base composite material by silicon carbide particles.
2, the present invention passes through embodiment, performance with experimental data explanation the present invention containing the aluminium copper silicon cerium solder of Rare-Earth Ce, and compare with the aluminium copper silicon solder obtained under the same conditions, the aluminium copper silicon cerium brazing filler metal alloy that proof adopts has lower fusing point and stronger wettability, is applicable to the soldering processes of enhancing aluminum-base composite material by silicon carbide particles.
The accompanying drawing explanation
The metallograph of the Al-5.5Si-28Cu brazing filler metal alloy that Fig. 1 is Comparative Examples 1;
The metallograph of the Al-5.5Si-28Cu-0.05Ce brazing filler metal alloy that Fig. 2 is embodiment 2;
The microscopic structure that Fig. 3 is the Al-5.5Si-28Cu brazing filler metal alloy that utilizes ESEM to obtain;
The microscopic structure that Fig. 4 is the Al-5.5Si-28Cu-0.05Ce brazing filler metal alloy that utilizes ESEM to obtain;
Fig. 5 is SiC
p/ Al composite is used the Al-5.5Si-28Cu solder to carry out the weld seam pattern obtained after vacuum brazing;
Fig. 6 is SiC
p/ Al composite is used the Al-5.5Si-28Cu-0.05Ce solder to carry out the weld seam pattern obtained after vacuum brazing.
The aluminium copper silicon cerium solder that contains Rare-Earth Ce in order to set forth the present invention has processing performance and mechanical property preferably, special attached Al-5.5Si-28Cu solder and the metallographic microstructure figure of the embodiment of the present invention 2 and both ESEM micro-organization charts, as shown in Figure 1, Figure 2, Figure 3, Figure 4, two figure are compared, from microcosmic angle, disclose the reason that its performance improves.
Can find out from Fig. 1 and Fig. 3 the eutectic Si that contains needle-like Al-5.5Si-28Cu solder tissue, a large amount of existence of the eutectic Si of this needle-like can reduce the mechanical property of solder.After the present invention adds Rare-Earth Ce, the eutectic Si quantity of Fig. 2 and Fig. 4 needle-like obviously reduces, and organizing in alloy is more even, and rare earth distributes with strip or sheet form, significantly improves the mechanical property of brazing filler metal alloy.
Use diamond fretsaw by block SiC
pit is that length is 20mm that/Al composite cuts into specification, width is 10mm, the sheet that thickness is 2mm, the flaky composite material of choosing some carries out the chemical nickel plating processing, the form of the composite material by adopting overlap joint after nickel plating is assembled, be that the solder that vacuum is got rid of after band is placed in the middle of two composites, and clamped with special fixture.Then put into vacuum brazing furnace, pumping high vacuum (>1.0 * 10
-3pa), with the heating rate of 20 ℃/min, be warming up to 580 ℃, after insulation 15min, be cooled to room temperature, open the vacuum brazing furnace door and take out weldment.Use the welding point pattern of Al-5.5Si-28Cu solder and use Al-5.5Si-28Cu-0.05Ce solder respectively as shown in Figure 5 and Figure 6.
From Fig. 5 and Fig. 6, can find out, under identical welding condition, to the SiC after chemical nickel plating
pafter/Al composite carries out vacuum brazing, observable high multiple weld seam microscopic appearance, with use Al-5.5Si-28Cu solder, compare, use the Al-5.5Si-28Cu-0.05Ce solder to carry out having formed metallurgical binding completely after vacuum brazing, solder and mother metal are in conjunction with tight, solder is good to the SiC wetting of particulates in composite, with alloy matrix aluminum, is combined well simultaneously.
The specific embodiment
Below in conjunction with embodiment and legend, the present invention is described in further detail.
The alloy that the present invention Al-Si used, Al-Ce alloy are commercially available definite composition, the amount of the Al-Si added, Al-Ce, Cu can be obtained by the ratio in Si, Ce, each comfortable brazing filler metal alloy of Cu, and the amount that total amount deducts Al-Si, Al-Ce, Cu is required pure Al amount.After determining alloying component, before alloy smelting, the computational methods of required each material quality are as follows:
Because Cu used in the scolder smelting process is fine copper, therefore, at first can calculate according to the mass fraction of Cu the quality ω of the required Cu of scolder
1, then according to the mass fraction of Rare-Earth Ce, calculate the quality ω of required aluminium cerium intermediate alloy
2, next calculates the quality ω of required alusil alloy according to the mass fraction of Si
3, finally calculate the quality ω of required pure Al
4=100-ω
1-ω
2-ω
3.
Take embodiment 1 as example, further illustrate the computational methods of front required each material quality of alloy smelting.The brazing filler metal alloy gross mass is all calculated with 100 grams.The brazing filler metal alloy composition of smelting is Al-5.5Si-28Cu-0.01Ce, owing to smelting Cu used, is fine copper, at first can calculate according to the mass fraction 28% of Cu the quality ω of the required Cu of scolder
1=28.00 grams, then calculate the quality ω of required aluminium cerium intermediate alloy Al-10Ce according to the mass fraction 0.01% of Rare-Earth Ce
2=0.01/10%=0.10 gram, next mass fraction according to Si 5.5% calculates the quality ω of required alusil alloy Al-20Si
3=5.5/20%=27.50 gram, finally calculate the quality ω of required pure Al
4=100-ω
1-ω
2-ω
3=100-28.00-0.10-27.50=44.40 gram.
Comparative Examples 1
The pure Al of 44.50g and 27.50g Al-20Si alloy are placed in the crucible of vacuum induction melting furnace, are filled with high-purity argon gas after pumping high vacuum; Then quickly heat up to 750 ℃, make the alloy melting in crucible complete, then by the feeding device on induction furnace, the pure Cu of 28.00g is joined in the Al-Si aluminium alloy of melting, form the Al-Si-Cu alloy molten solution; Magnetic agitation in addition, under 600 ℃ after insulation 30-40min standing about 2 minutes, pour into a mould into metal type dies cooled and solidified in argon gas atmosphere; Remelting twice after the same method after taking-up, make each diffusion of components even, finally pours into bar-shaped stand-by.
Comparative Examples 2
The pure Al of 51.50g and 22.50g Al-20Si alloy are placed in the crucible of vacuum induction melting furnace, are filled with high-purity argon gas after pumping high vacuum; Then quickly heat up to 800 ℃, make the alloy melting in crucible complete, then by the feeding device on induction furnace, the pure Cu of 26.00g is joined in the Al-Si aluminium alloy of melting, form the Al-Si-Cu alloy molten solution; Magnetic agitation in addition, under 600 ℃ after insulation 30-40min standing about 2 minutes, pour into a mould into metal type dies cooled and solidified in argon gas atmosphere; Remelting twice after the same method after taking-up, make each diffusion of components even, finally pours into bar-shaped stand-by.
Comparative Examples 3
The pure Al of 39.50g and 32.50g Al-20Si alloy are placed in the crucible of vacuum induction melting furnace, are filled with high-purity argon gas after pumping high vacuum; Then quickly heat up to 800 ℃, make the alloy melting in crucible complete, then by the feeding device on induction furnace, the pure Cu of 28.00g is joined in the Al-Si aluminium alloy of melting, form the Al-Si-Cu alloy molten solution; Magnetic agitation in addition, under 650 ℃ after insulation 30-40min standing about 2 minutes, pour into a mould into metal type dies cooled and solidified in argon gas atmosphere; Remelting twice after the same method after taking-up, make each diffusion of components even, finally pours into bar-shaped stand-by.
Comparative Examples 4
The pure Al of 40.50g and 32.50g Al-20Si alloy are placed in the crucible of vacuum induction melting furnace, are filled with high-purity argon gas after pumping high vacuum; Then quickly heat up to 750 ℃, make the alloy melting in crucible complete, then by the feeding device on induction furnace, the pure Cu of 27.00g is joined in the Al-Si aluminium alloy of melting, form the Al-Si-Cu alloy molten solution; Magnetic agitation in addition, under 650 ℃ after insulation 30-40min standing about 2 minutes, pour into a mould into metal type dies cooled and solidified in argon gas atmosphere; Remelting twice after the same method after taking-up, make each diffusion of components even, finally pours into bar-shaped stand-by.
Embodiment 1
The pure Al of 44.40g and 27.50g Al-20Si alloy are placed in the crucible of vacuum induction melting furnace, after vacuumizing, are filled with high-purity argon gas; Then quickly heat up to 700 ℃～720 ℃, make the alloy melting in crucible complete, then by the feeding device on induction furnace, the pure Cu of 28.00g is joined in the Al-Si aluminium alloy of melting, form the Al-Si-Cu alloy molten solution; After fusing evenly, by temperature stabilization 750 ℃ of left and right, then add the Al-10Ce intermediate alloy of 0.10g by feeding device, it is fully reacted with the Al-Si-Cu alloy molten solution, magnetic agitation in addition, under 600 ℃ the insulation 30-40min after standing about 2 minutes, pour into a mould into metal type dies cooled and solidified in argon gas atmosphere; Remelting twice after the same method after taking-up, make each diffusion of components even, finally pours into bar-shaped stand-by.
Embodiment 2
The pure Al of 44.00g and 27.50g Al-20Si alloy are placed in the crucible of vacuum induction melting furnace, after vacuumizing, are filled with high-purity argon gas; Then quickly heat up to 750 ℃, make the alloy melting in crucible complete, then by the feeding device on induction furnace, the pure Cu of 28.00g is joined in the Al-Si aluminium alloy of melting, form the Al-Si-Cu alloy molten solution; After fusing evenly, by temperature stabilization 750 ℃ of left and right, then add the Al-10Ce intermediate alloy of 0.50g by feeding device, it is fully reacted with the Al-Si-Cu alloy molten solution, magnetic agitation in addition, under 600 ℃ the insulation 30-40min after standing about 2 minutes, pour into a mould into metal type dies cooled and solidified in argon gas atmosphere; Remelting twice after the same method after taking-up, make each diffusion of components even, finally pours into bar-shaped stand-by.
Embodiment 3
The pure Al of 43.50g and 27.50g Al-20Si alloy are placed in the crucible of vacuum induction melting furnace, after vacuumizing, are filled with high-purity argon gas; Then quickly heat up to 700 ℃～720 ℃, make the alloy melting in crucible complete, then by the feeding device on induction furnace, the pure Cu of 28.00g is joined in the Al-Si aluminium alloy of melting, form the Al-Si-Cu alloy molten solution; After fusing evenly, by temperature stabilization 750 ℃ of left and right, then add the Al-10Ce intermediate alloy of 1.00g by feeding device, it is fully reacted with the Al-Si-Cu alloy molten solution, magnetic agitation in addition, under 600 ℃ the insulation 30-40min after standing about 2 minutes, pour into a mould into metal type dies cooled and solidified in argon gas atmosphere; Remelting twice after the same method after taking-up, make each diffusion of components even, finally pours into bar-shaped stand-by.
Embodiment 4
The pure Al of 39.50g and 27.50g Al-20Si alloy are placed in the crucible of vacuum induction melting furnace, after vacuumizing, are filled with high-purity argon gas; Then quickly heat up to 700 ℃～720 ℃, make the alloy melting in crucible complete, then by the feeding device on induction furnace, the pure Cu of 28.00g is joined in the Al-Si aluminium alloy of melting, form the Al-Si-Cu alloy molten solution; After fusing evenly, by temperature stabilization 750 ℃ of left and right, then add the Al-10Ce intermediate alloy of 5.00g by feeding device, it is fully reacted with the Al-Si-Cu alloy molten solution, magnetic agitation in addition, under 600 ℃ the insulation 30-40min after standing about 2 minutes, pour into a mould into metal type dies cooled and solidified in argon gas atmosphere; Remelting twice after the same method after taking-up, make each diffusion of components even, finally pours into bar-shaped stand-by.
Embodiment 5
The pure Al of 51.00g and 22.50g Al-20Si alloy are placed in the crucible of vacuum induction melting furnace, after vacuumizing, are filled with high-purity argon gas; Then quickly heat up to 700 ℃～720 ℃, make the alloy melting in crucible complete, then by the feeding device on induction furnace, the pure Cu of 26.00g is joined in the Al-Si aluminium alloy of melting, form the Al-Si-Cu alloy molten solution; After fusing evenly, by temperature stabilization 800 ℃ of left and right, then add the Al-10Ce intermediate alloy of 0.50g by feeding device, it is fully reacted with the Al-Si-Cu alloy molten solution, magnetic agitation in addition, under 600 ℃ the insulation 30-40min after standing about 2 minutes, pour into a mould into metal type dies cooled and solidified in argon gas atmosphere; Remelting twice after the same method after taking-up, make each diffusion of components even, finally pours into bar-shaped stand-by.
Embodiment 6
The pure Al of 50.50g and 22.50g Al-20Si alloy are placed in the crucible of vacuum induction melting furnace, after vacuumizing, are filled with high-purity argon gas; Then quickly heat up to 700 ℃～720 ℃, make the alloy melting in crucible complete, then by the feeding device on induction furnace, the pure Cu of 26.00g is joined in the Al-Si aluminium alloy of melting, form the Al-Si-Cu alloy molten solution; After fusing evenly, by temperature stabilization 800 ℃ of left and right, then add the Al-10Ce intermediate alloy of 1.00g by feeding device, it is fully reacted with the Al-Si-Cu alloy molten solution, magnetic agitation in addition, under 600 ℃ the insulation 30-40min after standing about 2 minutes, pour into a mould into metal type dies cooled and solidified in argon gas atmosphere; Remelting twice after the same method after taking-up, make each diffusion of components even, finally pours into bar-shaped stand-by.
Embodiment 7
The pure Al of 39.00g and 32.50g Al-20Si alloy are placed in the crucible of vacuum induction melting furnace, are filled with high-purity argon gas after pumping high vacuum; Then quickly heat up to 800 ℃, make the alloy melting in crucible complete, then by the feeding device on induction furnace, the pure Cu of 28.00g is joined in the Al-Si aluminium alloy of melting, form the Al-Si-Cu alloy molten solution; After fusing evenly, by temperature stabilization 800 ℃ of left and right, then add the Al-10Ce intermediate alloy of 0.50g by feeding device, it is fully reacted with the Al-Si-Cu alloy molten solution, magnetic agitation in addition, under 650 ℃ the insulation 30-40min after standing about 2 minutes, pour into a mould into metal type dies cooled and solidified in argon gas atmosphere; Remelting twice after the same method after taking-up, make each diffusion of components even, finally pours into bar-shaped stand-by.
Embodiment 8
The pure Al of 38.50g and 32.50g Al-20Si alloy are placed in the crucible of vacuum induction melting furnace, are filled with high-purity argon gas after pumping high vacuum; Then quickly heat up to 800 ℃, make the alloy melting in crucible complete, then by the feeding device on induction furnace, the pure Cu of 28.00g is joined in the Al-Si aluminium alloy of melting, form the Al-Si-Cu alloy molten solution; After fusing evenly, by temperature stabilization 800 ℃ of left and right, then add the Al-10Ce intermediate alloy of 1.00g by feeding device, it is fully reacted with the Al-Si-Cu alloy molten solution, magnetic agitation in addition, under 650 ℃ the insulation 30-40min after standing about 2 minutes, pour into a mould into metal type dies cooled and solidified in argon gas atmosphere; Remelting twice after the same method after taking-up, make each diffusion of components even, finally pours into bar-shaped stand-by.
Embodiment 9
The pure Al of 40.00g and 32.50g Al-20Si alloy are placed in the crucible of vacuum induction melting furnace, are filled with high-purity argon gas after pumping high vacuum; Then quickly heat up to 750 ℃, make the alloy melting in crucible complete, then by the feeding device on induction furnace, the pure Cu of 27.00g is joined in the Al-Si aluminium alloy of melting, form the Al-Si-Cu alloy molten solution; After fusing evenly, by temperature stabilization 700 ℃ of left and right, then add the Al-10Ce intermediate alloy of 0.50g by feeding device, it is fully reacted with the Al-Si-Cu alloy molten solution, magnetic agitation in addition, under 650 ℃ the insulation 30-40min after standing about 2 minutes, pour into a mould into metal type dies cooled and solidified in argon gas atmosphere; Remelting twice after the same method after taking-up, make each diffusion of components even, finally pours into bar-shaped stand-by.
Embodiment 10
The pure Al of 39.50g and 32.50g Al-20Si alloy are placed in the crucible of vacuum induction melting furnace, are filled with high-purity argon gas after pumping high vacuum; Then quickly heat up to 750 ℃, make the alloy melting in crucible complete, then by the feeding device on induction furnace, the pure Cu of 27.00g is joined in the Al-Si aluminium alloy of melting, form the Al-Si-Cu alloy molten solution; After fusing evenly, by temperature stabilization 700 ℃ of left and right, then add the Al-10Ce intermediate alloy of 1.00g by feeding device, it is fully reacted with the Al-Si-Cu alloy molten solution, magnetic agitation in addition, under 650 ℃ the insulation 30-40min after standing about 2 minutes, pour into a mould into metal type dies cooled and solidified in argon gas atmosphere; Remelting twice after the same method after taking-up, make each diffusion of components even, finally pours into bar-shaped stand-by.
Experimental data by the following examples illustrates that in the mode of chart the present invention contains the performance of the aluminium copper silicon cerium solder of Rare-Earth Ce, and compares with the aluminium copper silicon solder obtained under the same conditions.
Table 1 solder composition and fusion temperature
Table 1 is 10 kinds of aluminium copper silicon cerium solder and Al-Si-Cu solder component lists containing Rare-Earth Ce, in table, forms and is mass percent, gives liquidus temperature and the solidus temperature of each solder simultaneously; As can be seen from the table, the embodiment of the present invention 1～10 adds after Rare-Earth Ce the fusion temperature impact on brazing filler metal alloy little.
The hardness of table 2 solder and spreading area experimental result
Table 2 is comparisons of the embodiment of the present invention 1～10 and Al-Si-Cu solder hardness and spreading area.As can be seen from the table, the hardness of the embodiment of the present invention 1～10 and spreading area increase than Al-Si-Cu solder.
Claims (4)
1. the copper silicon of the aluminium for an enhancing aluminum-base composite material by silicon carbide particles soldering cerium solder, it is characterized in that: the raw materials used component of melting solder is: the Cu that purity is 99.99%, the Al that purity is 99.99%, Al-Si alloy, Al-Ce intermediate alloy.
2. a kind of copper silicon of the aluminium for enhancing aluminum-base composite material by silicon carbide particles soldering cerium solder according to claim 1, it is characterized in that: aluminium copper silicon cerium solder is containing the Cu of mass fraction 26.0% ~ 28.0%, the Si of mass fraction 4.5% ~ 6.5%, the Ce of mass fraction 0.01%-0.5%, surplus is Al.
3. a kind of copper silicon of the aluminium for enhancing aluminum-base composite material by silicon carbide particles soldering cerium solder according to claim 1, it is characterized in that: described alusil alloy is the Al-20Si alloy, the mass fraction that in the Al-20Si alloy, the mass fraction of Al is 80%, Ce is 20%;
A kind of copper silicon of the aluminium for enhancing aluminum-base composite material by silicon carbide particles soldering cerium solder according to claim 1, it is characterized in that: described aluminium cerium intermediate alloy is the Al-10Ce intermediate alloy, the mass fraction that in the Al-10Ce intermediate alloy, the mass fraction of Al is 90%, Ce is 10%.
4. the preparation method of a kind of copper silicon of the aluminium for enhancing aluminum-base composite material by silicon carbide particles soldering cerium solder as described as claim 1-4 any one comprises the following steps:
1) pure Al and alusil alloy are placed in the crucible of vacuum induction melting furnace, after vacuumizing, are filled with high-purity argon gas;
2) quickly heat up to 750 ~ 800 ℃, make the alloy melting in crucible complete, then by the feeding device on induction furnace, pure Cu is joined in the Al-Si aluminium alloy of melting, form the Al-Si-Cu alloy molten solution;
3) after fusing evenly, vacuum induction melting furnace is warming up to 800 ℃ of left and right, and make temperature stabilization, and then by feeding device, add aluminium cerium intermediate alloy, it is fully reacted with the Al-Si-Cu alloy molten solution, magnetic agitation in addition, prevent the rare earth segregation, rare earth be diffused into rapidly in melt equably, subsequently under 600 ~ 650 ℃ the insulation 30-40min after standing about 2 minutes, pour into a mould into metal type dies cooled and solidified in argon gas atmosphere;
4) take out brazing filler metal alloy and remove remelting twice after the same method after surperficial oxide skin, make each diffusion of components even, finally pour into bar-shapedly, obtain aluminium copper silicon cerium solder.
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| CN104772584A (en) * | 2015-05-07 | 2015-07-15 | 东北石油大学 | Preparation method for in-situ reaction TiAl3 particle-reinforced aluminum base composite brazing filler metal |
| CN105479032A (en) * | 2014-09-18 | 2016-04-13 | 河南理工大学 | Aluminum-silicon-copper-yttrium solder for silicon carbide particle reinforced aluminum matrix composite soldering and preparation method for aluminum-silicon-copper-yttrium solder |
| CN106736011A (en) * | 2016-12-06 | 2017-05-31 | 河南理工大学 | A kind of SiCp/Al composites powdered filler metal preparation and application |
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| CN104131186A (en) * | 2014-08-16 | 2014-11-05 | 孟红琳 | Method for preparing aluminum-based composite material subjected to enhanced particle-copper alloy interface compatibility treatment |
| CN105479032A (en) * | 2014-09-18 | 2016-04-13 | 河南理工大学 | Aluminum-silicon-copper-yttrium solder for silicon carbide particle reinforced aluminum matrix composite soldering and preparation method for aluminum-silicon-copper-yttrium solder |
| CN104772584A (en) * | 2015-05-07 | 2015-07-15 | 东北石油大学 | Preparation method for in-situ reaction TiAl3 particle-reinforced aluminum base composite brazing filler metal |
| CN106736011A (en) * | 2016-12-06 | 2017-05-31 | 河南理工大学 | A kind of SiCp/Al composites powdered filler metal preparation and application |
| CN107012354A (en) * | 2017-04-05 | 2017-08-04 | 江苏大学 | A kind of preparation method of Al Si9Cu1 particulate reinforced composites |
| CN107012354B (en) * | 2017-04-05 | 2018-12-14 | 江苏大学 | A kind of preparation method of Al-Si9Cu1 particulate reinforced composite |
| CN106956092A (en) * | 2017-04-12 | 2017-07-18 | 河南理工大学 | High silica/aluminum-based composite solder and preparation method thereof and method for welding |
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