CN108456797B - A kind of Cu-Ag-Fe-C system alloy and preparation method thereof - Google Patents
A kind of Cu-Ag-Fe-C system alloy and preparation method thereof Download PDFInfo
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- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 66
- 239000000956 alloy Substances 0.000 title claims abstract description 66
- 238000002360 preparation method Methods 0.000 title claims abstract description 45
- 229910017112 Fe—C Inorganic materials 0.000 title claims abstract description 29
- 229910052802 copper Inorganic materials 0.000 claims abstract description 32
- 238000000034 method Methods 0.000 claims abstract description 27
- 238000002844 melting Methods 0.000 claims abstract description 25
- 230000008018 melting Effects 0.000 claims abstract description 25
- 229910052709 silver Inorganic materials 0.000 claims abstract description 17
- 239000002245 particle Substances 0.000 claims abstract description 12
- 229910017770 Cu—Ag Inorganic materials 0.000 claims abstract description 10
- 239000011159 matrix material Substances 0.000 claims abstract description 10
- 230000015271 coagulation Effects 0.000 claims abstract description 6
- 238000005345 coagulation Methods 0.000 claims abstract description 6
- 239000010949 copper Substances 0.000 claims description 60
- 239000000843 powder Substances 0.000 claims description 34
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 17
- 238000012545 processing Methods 0.000 claims description 14
- 238000003723 Smelting Methods 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 9
- 238000005266 casting Methods 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000011343 solid material Substances 0.000 claims description 7
- 230000006698 induction Effects 0.000 claims description 6
- 238000007670 refining Methods 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 6
- 238000013019 agitation Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 239000002994 raw material Substances 0.000 claims description 5
- 229910000838 Al alloy Inorganic materials 0.000 claims description 4
- 238000010907 mechanical stirring Methods 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 238000007711 solidification Methods 0.000 claims description 3
- 230000008023 solidification Effects 0.000 claims description 3
- 230000005284 excitation Effects 0.000 claims description 2
- 238000002074 melt spinning Methods 0.000 claims description 2
- 229910017827 Cu—Fe Inorganic materials 0.000 abstract description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 40
- 230000000052 comparative effect Effects 0.000 description 21
- 239000006104 solid solution Substances 0.000 description 8
- 229910052799 carbon Inorganic materials 0.000 description 6
- 238000009792 diffusion process Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 229910000881 Cu alloy Inorganic materials 0.000 description 4
- 238000005868 electrolysis reaction Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 229910001316 Ag alloy Inorganic materials 0.000 description 3
- YCKOAAUKSGOOJH-UHFFFAOYSA-N copper silver Chemical compound [Cu].[Ag].[Ag] YCKOAAUKSGOOJH-UHFFFAOYSA-N 0.000 description 3
- 238000012805 post-processing Methods 0.000 description 3
- 241000208340 Araliaceae Species 0.000 description 2
- 229910000640 Fe alloy Inorganic materials 0.000 description 2
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 2
- 235000003140 Panax quinquefolius Nutrition 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000013065 commercial product Substances 0.000 description 2
- 235000008434 ginseng Nutrition 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000846 In alloy Inorganic materials 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 229910001567 cementite Inorganic materials 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000000713 high-energy ball milling Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000000930 thermomechanical effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/03—Making non-ferrous alloys by melting using master alloys
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
- Conductive Materials (AREA)
Abstract
The invention discloses a kind of Cu-Ag-Fe-C system alloy and preparation method thereof, which is grouped as by following group by mass percentage: Ag, 0.5-3%；Fe-C prealloy, 10-15%, surplus Cu.Preparation method includes: the melting step of Cu and Ag, the addition step of Fe-C prealloy, quick coagulation step, to obtain the Cu-Ag-Fe-C system alloy that Fe-C prealloy particle is uniformly distributed in Cu-Ag matrix.The conductivity and tensile strength of Cu-Fe system alloy can be improved in the method for the present invention, and the tensile strength of obtained cast alloy is 420-500MPa, conductivity 40-55%IACS.
Description
Technical field
The present invention relates to the preparation methods of an Albatra metal, more particularly it relates to which a kind of Cu-Ag-Fe-C system closes
Gold and preparation method thereof.
Background technique
Copper alloy has good electrical and thermal conductivity, ductility and mechanical property, is electronic information, electric power, the energy, ship
The key function material developed with important industries such as machinery.Compared with the copper alloy with high strength and high conductivity of other systems, closed in Cu-Fe system
The fusing point of gold element Fe is relatively low, is easier to melting, and non-miscible gap of Fe and Cu is small, and the deformability of alloy is preferable, can
Processability is preferable, so the research about Cu-Fe system alloy receives attention, becomes the important side of copper alloy with high strength and high conductivity development
One of to.
Currently, high-strength highly-conductive Cu-Fe system alloy mainly utilizes conventional fusion-cast method to prepare just alloy, then first alloy is carried out
The processing such as subsequent heat treatment, deformation, obtain the Cu-Fe system alloy of final use state.When founding prepares just alloy, due to
Solidification cooling is very fast, it is easy to cause to be dissolved a large amount of Fe element in Cu matrix, the serious conduction for reducing Cu-Fe alloy
Property.Although oversaturated Fe is constantly precipitated during subsequent heat treatment, thermomechanical treatment etc., the diffusion velocity of Fe under low temperature
It is very slow, be difficult the Fe that will be dissolved in Cu and be precipitated completely, and solid solution of the Fe in Cu be reduce the main influence of Cu-Fe alloy because
Element.So needing to reduce solid solution capacity of the Fe in Cu to improve the electric conductivity of Cu-Fe alloy.
Existing method not can be well solved this frequently with deformation, heat treatment, high-intensity magnetic field, multi-element alloyed etc.
Problem.Such as: Ag is considered as that damage Cu alloy conductive acts on the smallest element, but is carried out using Ag to Cu-Fe alloy
The Cu-Fe-Ag alloy of alloying preparation, 2.5% or more Fe is still dissolved in as cast condition Cu matrix.Due to the expansion of Fe under low temperature
Scattered speed is very slow, although can reduce the solid solution capacity of Fe in Cu otherwise, the Fe being dissolved in Cu can not equally be subtracted
It is few to arrive very low state.
Therefore, it is badly in need of a kind of method that can more efficiently reduce the Fe being dissolved in Cu.
Summary of the invention
In order to overcome the defects of the prior art, the purpose of the present invention is to provide a kind of Cu-Ag-Fe-C system alloy and its
Preparation method.
A kind of Cu-Ag-Fe-C system alloy, by mass percentage, Cu-Ag-Fe-C system alloy is grouped as by following group:
Ag, 0.5-3%；Fe-C prealloy, 10-15%, surplus Cu.
In above-mentioned Cu-Ag-Fe-C system alloy, C content is in the Fe-C prealloy as a preferred implementation manner,
0.8~1.8wt% (such as: 0.9wt%, 1.0wt%, 1.1wt%, 1.2wt%, 1.3wt%, 1.4wt%, 1.5wt%,
1.6wt%, 1.7wt%).
A kind of preparation method of Cu-Ag-Fe-C system alloy, comprising:
Solid material Cu and Ag are carried out melting processing, obtain liquid Cu-Ag aluminium alloy by the melting step of Cu and Ag；
Fe-C prealloy powder is added in the liquid Cu-Ag aluminium alloy and is stirred by the addition step of Fe-C prealloy
Processing, obtains uniformly mixed melting material；
The melting material is carried out quick solidification processing, obtains Fe-C prealloy particle and be uniformly distributed by quick coagulation step
Cu-Ag-Fe-C system alloy in Cu-Ag matrix.
The present invention is that copper and Ag are first smelted into liquid, and smelting temperature is then maintained at more slightly higher than copper and silver point
But do not reach the fusing point of Fe-C prealloy powder, then under the smelting temperature be added Fe-C prealloy powder and be uniformly mixed with
It is dispersed in solid Fe-C prealloy powder in the copper-silver alloy liquid of liquid, last rapid cooling, present invention utilizes C and Cu
Mutually exclusive effect in Fe-Cu-C ternary system is utilized Ag ratio Fe and is first dissolved in Cu, makees to the inhibition of Fe solid solution
With the feature that Fe diffusion velocity in Cu is low under low temperature is utilized, Fe is added in solid form in Cu-Ag alloy liquid, so
Cooling rapidly afterwards controls diffusion of the Fe into Cu matrix, so that Fe be made to be dispersed in Kufil matrix, reduction is solid-solution in
Fe amount in Cu；In this process, Fe-C prealloy powder melts, and is also beneficial to reduce the Fe being dissolved in Cu liquid in this way
Amount is conducive to the electric conductivity for improving alloy.
In the above preparation method, described molten as a preferred implementation manner, in the melting step of the Cu and Ag
Refining is handled to be carried out in frequency induction furnace in a vacuum.
In the above preparation method, described molten as a preferred implementation manner, in the melting step of the Cu and Ag
Refining processing smelting temperature be 1090~1200 DEG C, more preferably 1100~1180 DEG C (such as 1110 DEG C, 1120 DEG C, 1130 DEG C,
1140℃,1150℃,1160℃,1170℃,1175℃).Smelting temperature is excessively high to be unfavorable for being connected with next step.
In the above preparation method, described molten as a preferred implementation manner, in the melting step of the Cu and Ag
Refining processing when vacuum degree be 10Pa or less (such as 9Pa, 7Pa, 5Pa, 3Pa, 1Pa, 0.5Pa, 0.1Pa, 0.05Pa).
In the above preparation method, described as a preferred implementation manner, in the addition step of the Fe-C prealloy
Temperature when stir process be 1100~1180 DEG C (such as 1110 DEG C, 1120 DEG C, 1130 DEG C, 1140 DEG C, 1150 DEG C, 1160 DEG C,
1170 DEG C, 1175 DEG C), it is highly preferred that the stir process is carried out under conditions of 1100 DEG C.Temperature when stir process
The too high or too low Fe-C prealloy powder that is all unfavorable for is evenly dispersed in copper-silver alloy melt, generates not to alloy property
Benefit influences.
In the above preparation method, described as a preferred implementation manner, in the addition step of the Fe-C prealloy
Stir process is mechanical stirring or electromagnetic agitation, time of the stir process be 1~5min (such as 1.5min, 2min,
2.5min,3min,4min,4.5min)；It is highly preferred that the churned mechanically mixing speed be 240-400rpm (such as
250rpm, 280rpm, 300rpm, 320rpm, 350rpm, 370rpm, 390rpm), the excitation voltage of the electromagnetic agitation is
180-220V (such as 185V, 190V, 200V, 210V, 220V).The effect of electromagnetic agitation is better than mechanical stirring, in the present invention
Stirring parameter under be stirred the dispersion of Fe-C prealloy powder can be made more uniform, can be further improved
The performance of alloy.
In the above preparation method, as a preferred implementation manner, in the quick coagulation step, the fast rapid hardening
Gu processing is water cooled copper mould casting method or melt spinning；It is highly preferred that the cooling velocity of the water cooled copper mould casting method is 50
DEG C/s~1000 DEG C/s (such as 55 DEG C/s, 100 DEG C/s, 200 DEG C/s, 300 DEG C/s, 400 DEG C/s, 500 DEG C/s, 600 DEG C/s, 700
℃/s、800℃/s、900℃/s、950℃/s)。
In the above preparation method, the solid material Cu and Ag is purity as a preferred implementation manner,
The cathode copper and Ag simple substance of 99.9wt% or more；Or the solid material Cu and Ag is Cu-Ag prealloy powder.Cu-Ag is closed in advance
Bronze is commercial product, naturally it is also possible to conventionally prepare, can be prepared by vacuum atomizing furnace, by required proportion
Raw material cathode copper and pure aluminum melting after be atomized into powder particle.Very few do not have of the additional amount of Ag reduces Fe solid solution in matrix
The effect of amount, Ag additional amount is excessive, not only increases cost, it is often more important that will lead to iron phase roughening, drops low-alloyed using temperature
Degree.
In the above preparation method, the particle size of the Fe-C prealloy powder is 60 as a preferred implementation manner,
~220nm (such as the specific point value formation of 70nm, 80nm, 100nm, 120nm, 150nm, 180nm, 190nm, 210nm or above-mentioned
Any size range).The Fe-C prealloy powder is commercial product, naturally it is also possible to conventionally prepare, can lead to
The preparation of vacuum atomizing furnace is crossed, powder particle will be atomized into after the pure iron as raw material of required proportion and carburant melting, then passed through again
High-energy ball milling is prepared into the Fe-C prealloy powder of required granularity.Fe-C prealloy powder particle size used in the present invention be 60~
220nm, particle is excessive, and strengthening effect is poor, too small, is easy to be dissolved in Fe in Cu, and electric conductivity is deteriorated, but also the group of being easy to happen
It is poly-.
In the above preparation method, as a preferred implementation manner, with the Fe-C prealloy powder and the solid
On the basis of the gross mass of raw material Cu and Ag, the dosage of the Fe-C prealloy powder be 10wt%~15wt% (such as 11%,
12%, 13%, 14%), the dosage of the solid material Cu be 82wt%~89.5wt% (such as 86%, 87%, 88%,
89%), the dosage of the solid material Ag be 0.5wt%~3wt% (such as 0.6wt%, 0.8wt%, 1.2wt%,
1.5wt%, 1.8wt%, 2.3wt%, 2.8wt%).
In the above preparation method, as a preferred implementation manner, in the Fe-C prealloy powder, C content be 0.8~
1.8wt% (such as: 0.9wt%, 1.0wt%, 1.1wt%, 1.2wt%, 1.3wt%, 1.4wt%, 1.5wt%, 1.6wt%,
1.7wt%).
In alloy of the invention, C content is too low have been will lead to more Fe and has dissolved in Cu, not to the electric conductivity of alloy
Benefit, C content is excessively high may to will form graphite or Fe3C etc..
In the above preparation method, the preparation method further includes alloy post-processing step as a preferred implementation manner,
Suddenly, the Cu-Ag-Fe-C system alloy that the quick coagulation step obtains is post-processed, obtain Cu-Ag-Fe-C system alloy at
Product.It is highly preferred that the post-processing is one of heat treatment, deformation process, magnetic field processing or a variety of；The post-processing is normal
Rule processing.
Compared with prior art, the invention has the following beneficial effects:
In order to more effectively reduce the Fe content being dissolved in Cu-Fe alloy substrate, this patent proposes to exist using C and Cu
Mutually exclusive effect in Fe-Cu-C ternary system, Fe-C is added into Cu；Ag ratio Fe is utilized first to be dissolved in Cu, to Fe
The inhibiting effect of solid solution, while the feature low using Fe diffusion velocity in Cu under low temperature, by Fe, Fe-C is added in solid form
In Cu liquid, then cooling rapidly controls diffusion of the Fe into Cu matrix, the solid solution capacity of Fe in Cu-Ag matrix is greatly reduced.This
The conductivity and tensile strength of Cu-Fe alloy can be improved in inventive method, and the tensile strength of obtained cast alloy is 420-
500MPa, conductivity 40-55%IACS.
Specific embodiment
Present invention will be further explained below with reference to specific examples.It should be understood that these embodiments be only used for the present invention without
For limiting the scope of the invention.Externally it should be understood that after reading the contents of the present invention, those skilled in the art are to this hair
Bright to make various changes or modifications, these equivalent forms also fall within the scope of the appended claims of the present application.
Embodiment 1
Alloy manufactured in the present embodiment is Cu-2.0wt%Ag-15wt% (Fe-C) alloy, it may be assumed that in the alloy, Fe-C
Content be 15wt%, the content of Cu is 83wt%, and the content of Ag is 2wt%, wherein the quality hundred of C in Fe-C alloy powder
Divide than being 1wt%.It is specific the preparation method is as follows:
The electrolysis high-purity Cu and simple substance Ag of 99.9wt% are subjected to melting, smelting temperature control in frequency induction furnace in a vacuum
At 1100 ± 5 DEG C, vacuum degree 10Pa, the Fe-C for being 80-120nm by particle size after solid copper and silver all become liquid
Alloyed powder is added in copper silver melt, is still made under the conditions of 1100 ± 5 DEG C with the mixing speed mechanical stirring 3min of 300rpm
Solid-state Fe-C powder alloy is evenly distributed in Kufil liquid, is then cast in water cooled copper mould and is quickly cooled down, cooling speed
Degree is 100 DEG C/s, the Cu-2.0wt%Ag-15wt% obtained after casting (Fe-C) alloy.
The cast alloy product of embodiment method preparation is tested for the property, tensile strength 465MPa is conductive
Rate is 50%IACS.
Embodiment 2-4
Embodiment 2-4 is other than the mass percent of C in Fe-C alloy powder is different from embodiment 1, other techniques ginseng
Number is the same as embodiment 1.The mass percent of C and the performance of obtained alloy are referring to table in the Fe-C alloy powder of embodiment 2-4
1。
The technological parameter and results of property of 1 embodiment 2-4 of table
Embodiment 5-6 and comparative example 1
Temperature (temperature when smelting temperature is equal to stirring) is no when embodiment 5-6 and comparative example 1 are in addition to smelting temperature and stirring
It is same as other than embodiment 1, other technological parameters are the same as embodiment 1.It the smelting temperature of embodiment 5-6 and comparative example 1 and obtains
The performance of alloy is referring to table 2.
The technological parameter and results of property of table 2 embodiment 5-6 and comparative example 1
Embodiment 7-8 and comparative example 2
Embodiment 7-8 and comparative example 2 are other than the particle size of Fe-C prealloy powder is different from embodiment 1, other works
Skill parameter is the same as embodiment 1.The property of the particle size and obtained alloy of embodiment 7-8 and the Fe-C prealloy powder of comparative example 2
It can be referring to table 3.
The technological parameter and results of property of table 3 embodiment 7-8 and comparative example 2
Embodiment 9-10 and comparative example 3
Embodiment 9-10 and comparative example 3 are other than the content of Ag simple substance in alloy is different from embodiment 1, other techniques ginseng
Number is the same as embodiment 1.The content of Ag simple substance and the performance of obtained alloy are referring to table in embodiment 9-10 and the alloy of comparative example 3
4。
The technological parameter and results of property of table 4 embodiment 9-10 and comparative example 3
Embodiment 11-14
Embodiment 11-14 is other than agitating mode and parameter are different from embodiment 1, other technological parameters are the same as embodiment 1.
The mixing parametric of embodiment 11-14 and the performance of obtained alloy are referring to table 5.
The technological parameter and results of property of 5 embodiment 11-14 of table
Comparative example 4
The alloy of this comparative example preparation is that (i.e. the content of Fe is 15wt% to Cu-15wt%Fe alloy in the alloy, and Cu's contains
Amount is 85wt%；Namely the dosage of cathode copper is the 85wt% of cathode copper and Fe total powder quality, the dosage of Fe powder in raw material
For the 15wt% of cathode copper and Fe total powder quality), it is specific the preparation method is as follows:
The electrolysis high-purity Cu and Fe of 99.9wt% are subjected to melting in frequency induction furnace in a vacuum, smelting temperature control exists
It 1600 DEG C or so, vacuum degree 10Pa, is cast in water cooled copper mould and is quickly cooled down after the completion of melting, cooling velocity 100
DEG C/s, the Cu-15wt%Fe alloy obtained after casting.
The cast alloy product of comparative example method preparation is tested for the property, tensile strength 310MPa is conductive
Rate is 15%IACS.
Comparative example 5
This comparative example preparation alloy be Cu-15wt% (Fe-C) alloy (i.e. the content of Fe-C is 15wt% in the alloy,
The content of Cu is 85wt%, and C content is 1wt% in Fe-C, it is specific the preparation method is as follows:
The high-purity Cu and Fe-C powder of the electrolysis of 99.9wt% is subjected to melting, smelting temperature control in frequency induction furnace in a vacuum
System is cast in water cooled copper mould after the completion of 1600 DEG C or so, vacuum degree 10Pa, melting and is quickly cooled down, and cooling velocity is
100 DEG C/s, the Cu-15wt% obtained after casting (Fe-C) alloy.
The cast alloy product of comparative example method preparation is tested for the property, tensile strength 315MPa is conductive
Rate is 17%IACS.
Comparative example 6
The alloy of this comparative example preparation is that (i.e. in the alloy Fe-C contains for Cu-2.0wt%Ag-15wt% (Fe-C) alloy
Amount is 15wt%, and the content of Cu is 83wt%, and the content of Ag is 2wt%, and C content is 1wt% in Fe-C, and specific preparation method is such as
Under:
The high-purity Cu of electrolysis of 99.9wt%, silver-colored simple substance and Fe-C powder are subjected to melting in frequency induction furnace in a vacuum, melted
Temperature control is refined at 1600 DEG C or so, vacuum degree 10Pa, melting is cast in water cooled copper mould is quickly cooled down after the completion, cold
But speed is 100 DEG C/s, the Cu-2.0wt%Ag-15wt% obtained after casting (Fe-C) alloy.
The cast alloy product of comparative example method preparation is tested for the property, tensile strength 318MPa is conductive
Rate is 24%IACS.
Claims (12)
1. a kind of preparation method of Cu-Ag-Fe-C system alloy characterized by comprising
Solid material Cu and Ag are carried out melting processing, obtain liquid Cu-Ag aluminium alloy by the melting step of Cu and Ag；It is described molten
The smelting temperature of refining processing is 1090~1200 DEG C；
Fe-C prealloy powder is added in the liquid Cu-Ag aluminium alloy and is stirred by the addition step of Fe-C prealloy,
Obtain uniformly mixed melting material；The temperature when stir process is 1100~1180 DEG C；
The melting material is carried out quick solidification processing, obtains Fe-C prealloy particle and be uniformly distributed in Cu- by quick coagulation step
Cu-Ag-Fe-C system alloy in Ag matrix；
By mass percentage, Cu-Ag-Fe-C system alloy is grouped as by following group: Ag, 0.5-3%；Fe-C prealloy, 10-
15%, surplus Cu；
The particle size of the Fe-C prealloy powder is 60~220nm.
2. preparation method according to claim 1, which is characterized in that described molten in the melting step of the Cu and Ag
Refining is handled to be carried out in frequency induction furnace in a vacuum.
3. preparation method according to claim 1, which is characterized in that described molten in the melting step of the Cu and Ag
The smelting temperature of refining processing is 1100~1180 DEG C.
4. preparation method according to claim 1, which is characterized in that the melting handle when vacuum degree be 10Pa with
Under.
5. preparation method according to claim 1, which is characterized in that described in the addition step of the Fe-C prealloy
Stir process is carried out under conditions of 1100 DEG C.
6. preparation method according to claim 1, which is characterized in that described in the addition step of the Fe-C prealloy
Stir process is mechanical stirring or electromagnetic agitation, and the time of the stir process is 1~5min.
7. preparation method according to claim 6, which is characterized in that the churned mechanically mixing speed is 240-
400rpm, the excitation voltage of the electromagnetic agitation are 180-220V.
8. preparation method according to claim 1, which is characterized in that in the quick coagulation step, the fast rapid hardening
Gu processing is water cooled copper mould casting method or melt spinning.
9. preparation method according to claim 8, which is characterized in that the cooling velocity of the water cooled copper mould casting method is 50
DEG C/s~1000 DEG C/s.
10. preparation method according to claim 1, which is characterized in that with the Fe-C prealloy powder and the solid
On the basis of the gross mass of raw material Cu and Ag, the dosage of the Fe-C prealloy powder is 10wt%~15wt%, the dosage of the Ag
For 0.5wt%~3wt%, the dosage of the Cu is 82wt%~89.5wt%.
11. preparation method according to claim 1, which is characterized in that the solid material Cu and Ag is purity
The cathode copper and Ag simple substance of 99.9wt% or more.
12. -11 described in any item preparation methods according to claim 1, which is characterized in that in the Fe-C prealloy powder, C contains
Amount is 0.8~1.8wt%.
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| CN201810259998.5A CN108456797B (en) | 2018-03-27 | 2018-03-27 | A kind of Cu-Ag-Fe-C system alloy and preparation method thereof |
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| CN201810259998.5A CN108456797B (en) | 2018-03-27 | 2018-03-27 | A kind of Cu-Ag-Fe-C system alloy and preparation method thereof |
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| CN108456797B true CN108456797B (en) | 2019-08-30 |
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| CN201810259998.5A Expired - Fee Related CN108456797B (en) | 2018-03-27 | 2018-03-27 | A kind of Cu-Ag-Fe-C system alloy and preparation method thereof |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57110642A (en) * | 1980-12-26 | 1982-07-09 | Tanaka Kikinzoku Kogyo Kk | Electrical contact material for sealing and its manufacture |
| CN104263985A (en) * | 2014-09-24 | 2015-01-07 | 西安理工大学 | Preparation method of self-hard reinforced Cu-FeC composite material |
| CN107201461A (en) * | 2017-05-24 | 2017-09-26 | 北京科技大学 | A kind of high-strength high-plastic biphase cooperative precipitation type Cu alloy material and preparation method thereof |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57110642A (en) * | 1980-12-26 | 1982-07-09 | Tanaka Kikinzoku Kogyo Kk | Electrical contact material for sealing and its manufacture |
| CN104263985A (en) * | 2014-09-24 | 2015-01-07 | 西安理工大学 | Preparation method of self-hard reinforced Cu-FeC composite material |
| CN107201461A (en) * | 2017-05-24 | 2017-09-26 | 北京科技大学 | A kind of high-strength high-plastic biphase cooperative precipitation type Cu alloy material and preparation method thereof |
Non-Patent Citations (2)
| Title |
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| Effect of Ag addition on the as-cast microstructure of Cu-8wt%Fe in situ composites;Zhixiong Xie等;《Journal of Alloys and Compounds》;20100826;第320-323页 * |
| 新型Cu-Fe-C 复相合金的制备及其变形行为;王斐等;《稀有金属材料与工程》;20170930;第46卷(第9期);第2688-2694页 * |
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