CN105839038B - A kind of preparation method of high-strength high-conductivity Cu Ag Fe alloys - Google Patents
A kind of preparation method of high-strength high-conductivity Cu Ag Fe alloys Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
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Abstract
A kind of preparation method of high-strength high-conductivity Cu Ag Fe alloys, belongs to non-ferrous alloy technical field.Its preparation method is comprised the following steps：By Cu Ag Fe alloy raw materials by proportioning melting, as cast condition Cu Ag Fe foundry alloys are obtained in 1000~1300 DEG C of cast；By Cu Ag Fe alloy grainings under 0.1~1T action of alternating magnetic field；Homogenization Treatments are carried out to alloy under the effect of 0.1~30T steady magnetic fields；Then predeformation, intermediate annealing heat treatment, redeformation are carried out, the last final annealing heat treatment under 0.1~30T steady magnetic fields, high-strength high-conductivity Cu Ag Fe alloy wires/sheet material is obtained, its conductance is 55~88%IACS, and tensile strength is 750~1760MPa.This method coordinates heat treatment to prepare Cu Ag Fe alloys using electromagnetic field, deformation, not only remains the excellent electric conductivity of Cu Ag alloys, and improves alloy strength, reduces alloy raw material cost.
Description
Technical field
The invention belongs to non-ferrous alloy technical field, more particularly to a kind of high-strength high-conductivity Cu-Ag-Fe alloys
Preparation method.
Background technology
High-strength high-conductivity Cu-Ag alloys are mainly used as contact line, circuit lead frame material, high impulse magnet
Winding wire material etc., is a kind of important structure function material.But it is expensive due to metal Ag, cause Cu-Ag to close
Golden production cost is higher.Meanwhile, face-centred cubic Cu and Ag is all, in deformation, slip system is similar to, and dislocation multiplication is limited, limitation
The further raising of its intensity.The spacing and size of the nanometer Ag phase that the intensity of Cu-Ag alloys is separated out with electric conductivity and from Cu
It is closely related.Therefore, on the premise of cost is not increased, the method that research and development further improve Cu-Ag alloy properties is subject to
Concern.
Chinese invention patent 02110785.8 discloses a kind of complex phase fibre strengthening Cu-Ag alloys and its preparation technology, adopts
With specific melting, cold drawing and intermediate heat-treatment technology, make alloy reached 800~1150MPa high intensity and 60%~
The electrical conductivity of 80%IACS.Chinese invention patent 201010563335.6 discloses a kind of using magnetic field preparation deformation Cu- in situ
The method of Ag composites, using apply magnetic field the Cu-Ag alloys of 6~25wt%Ag contents are solidified, homogenize and
Ageing Treatment, and coordinate multiple drawing deformation, make the intensity of alloy and conductance respectively reach 550MPa and 65%IACS with
On.Hong (Acta Metallurgica, 1998,46：4111；Materials Science and Engineering A,
1999,264：151) relation of the Cu-24% alloy properties with finished heat treatment temperature is disclosed, intensity and electric conductivity can be controlled
The matching of energy.Chinese invention patent 201010114104.7 provides a kind of in solidification stages applying AC magnetic field, refinement Fe
Crystalline substance, reduces Fe segregations, realizes the control of Cu-Fe deformation in-situ composite materials solidification, in combination with hot forging or hot rolling predeformation, consolidates
Molten treatment, cold rolling and magnetic field control aging technique so that the intensity of material reaches 700~920MPa, and conductance reaches 54%
~60%IACS.In Chinese invention patent 200510026596.3, a kind of preparation of Cu-Fe-Ag in-situ composites is disclosed
Method, makes the intensity of material reach 1000~1500MPa by fixation rates and cold drawing cooperation technique, and conductance is 60
~70%IACS, this technique is that the intensity and conductance of material are improved using solution treatment combination cold drawing technology.Huang
(Metals and Materials International, 2013,19：225-230) report deformation and homogenization is heat-treated
Influence to Cu-6wt%Ag- (2-6) wt%Fe ternary alloy three-partalloy performances.Multicomponent microalloying is high-strength high-conductive copper alloy
Important directions.The Fe elastic modelling quantity of body-centered cubic structure is 211.4GPa, the bullet of elastic modelling quantity 129.8GPa and Ag than Cu
Property modulus 82.7GPa it is all high, in deformation process, the Fe elements of body-centered cubic structure are presented<110>Texture, and it is face-centred cubic
Cu and Ag elements are presented<001>With<111>Mixing texture, wherein<001>It is preferred orientation texture.The addition of Fe can be produced
Deformation interface, plays interface enhancing.The nanometer of Fe is separated out simultaneously can strengthen precipitation strength, and because the solid solution of Fe can influence Ag
Precipitation, while reduce cost of alloy.
To sum up, Cu-Ag-Fe ternary alloy three-partalloys under alternating magnetic field or steady magnetic field effect are not related in existing document
The Technology for Heating Processing such as homogenization, annealing report.
The content of the invention
The purpose of the present invention is directed to problem of the prior art, proposes a kind of high-strength high-conductivity Cu-Ag-Fe alloys
Preparation method, this method coordinates heat treatment to prepare Cu-Ag-Fe alloys using electromagnetic field, deformation, not only remains Cu-Ag alloys
Excellent electric conductivity, and alloy strength is improve, reduce alloy raw material cost.
The preparation method of high-strength high-conductivity Cu-Ag-Fe alloys of the invention, comprises the following steps：
Step 1, prepares as cast condition Cu-Ag-Fe foundry alloys：
By Cu-Ag-Fe alloy raw materials by proportioning melting, as cast condition Cu-Ag-Fe mothers are obtained in 1000~1300 DEG C of cast and close
Gold；
Step 2, the solidification of Cu-Ag-Fe alloys under action of alternating magnetic field：
By as cast condition Cu-Ag-Fe foundry alloys, 0.1~1T alternating magnetic fields center is placed in, is heated to 1000~1300 DEG C,
Insulation 5~30 minutes, then quick cooling, obtains solidification state Cu-Ag-Fe alloys；
Step 3, the Homogenization Treatments of the lower alloy of steady magnetic field effect：
State Cu-Ag-Fe alloys will be solidified, the steady magnetic field center of 0.1~30T will be placed in, 760~800 DEG C will be heated to,
Insulation 4~24 hours, is then slowly cooled to room temperature with stove；
Step 4, predeformation：
By the Cu-Ag-Fe alloys after Homogenization Treatments, carry out pre-treatment, total draft of predeformation for 0.3~
0.7；
Step 5, intermediate annealing heat treatment：
The Cu-Ag-Fe alloys after predeformation are placed in vacuum heat treatment furnace, are heated to 350~550 DEG C, insulation 0.5
~24 hours, then it is slowly cooled to room temperature with stove；
Step 6, redeformation：
By the Cu-Ag-Fe alloys after annealing heat-treats, redeformation treatment is carried out, total draft of redeformation is 0.5~
0.9999；Obtain Cu-Ag-Fe alloy wires/sheet material；
Step 7, the final annealing heat treatment under steady magnetic field effect：
By Cu-Ag-Fe alloy wires/sheet material, the steady magnetic field center of 0.1~30T is placed in, in vacuum environment,
300~500 DEG C are heated to, 0.5~24 hour is incubated, is then slowly cooled to room temperature with stove, obtain high-strength high-conductivity Cu-
Ag-Fe alloy wires/sheet material.
In described step 1, Cu-Ag-Fe alloys, component is by weight percentage：Ag contents contain for 3%~25%, Fe
It is 0.1%~2% to measure, balance of Cu.
In described step 1, the concrete operations of melting are：Electrolysis Cu, Ag and pure Fe with more than purity 99.9wt% are
Raw material, melting in being added to vacuum induction melting furnace or vacuum arc melting furnace according to proportioning, is then cast in water cooled copper mould,
Obtain as cast condition Cu-Ag-Fe foundry alloys；
In described step 4, the method that pre-treatment is used is forging, rolling or drawing process.
In described step 6, the method that redeformation treatment is used is forging, rolling or drawing process, wherein total draft
On the basis of the predeformation alloy obtained by step 4.
High-strength high-conductivity Cu-Ag-Fe alloys of the invention, conductance is 55~88%IACS, and tensile strength is 750
~1760MPa.
High-strength high-conductivity Cu-Ag-Fe alloys of the invention, by adding a certain amount of Fe units in Cu-Ag alloys
Element applies electromagnetic field effect simultaneously, reduces the piece interlamellar spacing of Cu-Ag eutectics, and Cu fiber groups are obtained with reference to different distortion mode
Knit, Cu-Ag eutectics fibr tissue and Fe fibr tissues, play fibre strengthening；Coordinate different aging treatment process simultaneously, reduce
The solid solubility of Ag, Fe in Cu matrixes, increases the precipitation of the nanometer phase of Ag, Fe, enhances dispersion-strengtherning, improves leading for alloy
Electric rate.
A kind of preparation method of high-strength high-conductivity Cu-Ag-Fe alloys of the invention, compared with prior art, it has
Beneficial effect is：
(1) apply alternating magnetic field by the process of setting of Cu-Ag-Fe alloys, melt convection and solute can be controlled
Distribution, reaches refinement Cu dendrite, the effect of homogenization Fe distributions；
(2) by applying steady magnetic field Homogenization Treatments before Cu-Ag-Fe alloy predeformation, can accelerate non-equilibrium solidifying
Gu distribution tends to uniform to tissue in the base, promote super saturated solid solution element to be separated out from solid solution, reach elimination casting stress,
Improve plasticity, the purpose of Reducing distortion drag；
(3) apply intermediate annealing process by deformation Cu-Ag-Fe alloy preparation process, Fe under high temperature can be reduced
Solid solubility in Cu, Fe reduces impurity scattering from the precipitation in Cu under effectively facilitating low temperature, reaches increase composite material conductive
The purpose of rate；
(4) made annealing treatment by applying steady magnetic field in the final product, the strong of composite can be respectively increased
Degree and conductance 10~20%；
(5) by implementing the above content of the invention, Cu- prepared by the Cu-Ag-Fe alloy ratios prior art of same intensity is prepared
The cost of Ag alloys declines 10%~20%.
Brief description of the drawings
As cast condition Cu-Ag-Fe foundry alloy macroscopic organization charts prepared by the step 1 of Fig. 1 embodiment of the present invention 1；
The transmission electron microscope organization chart of the Cu-Ag-Fe alloy wires of the total draft 0.95 of the step 6 of Fig. 2 embodiment of the present invention 2；
The load-deformation curve of Cu-Ag-Fe sheet alloys prepared by Fig. 3 embodiment of the present invention 3.
Specific embodiment
With reference to embodiment, the present invention will be further described.
Embodiment 1
A kind of preparation method of high-strength high-conductivity Cu-Ag-Fe alloys, comprises the following steps：
Step 1, prepares as cast condition Cu-Ag-Fe foundry alloys：
A kind of high-strength high-conductivity Cu-Ag-Fe alloys, component is by weight percentage：Cu: Ag: Fe is 94.1: 5.4:
0.5。
Electrolysis Cu, Ag and pure Fe with more than purity 99.9wt% are added to vacuum induction melting as raw material according to proportioning
Melting in stove, is then cast in water cooled copper mould, and pouring temperature is 1200 DEG C, obtains as cast condition Cu-Ag-Fe foundry alloys, its macroscopic view
Organization chart is shown in Fig. 1；
Step 2, the solidification of Cu-Ag-Fe alloys under action of alternating magnetic field：
The as cast condition Cu-Ag-Fe foundry alloys that will be prepared, are placed in 1T alternating magnetic fields center, are heated to 1200 DEG C, insulation 10
After minute, quick cooling obtains solidification state Cu-Ag-Fe alloys；
Step 3, the Homogenization Treatments of the lower alloy of steady magnetic field effect：
Solidification state Cu-Ag-Fe alloys are placed in the steady magnetic field center of 12T, 780 DEG C are heated to, 12 hours are incubated,
Homogenization Treatments are carried out, is then slowly cooled to room temperature with stove；
Step 4, predeformation：
By the Cu-Ag-Fe alloys after Homogenization Treatments, cold forging is carried out at room temperature, total draft of predeformation is 0.4；
Step 5, intermediate annealing heat treatment：
The Cu-Ag-Fe alloys after predeformation are placed in vacuum heat treatment furnace, are heated to 400 DEG C, be incubated 2 hours, with
Stove is slowly cooled to room temperature；
Step 6, redeformation：
By the Cu-Ag-Fe alloys after annealing heat-treats, at room temperature under the conditions of, carry out total draft and (obtained with step 4
Alloy on the basis of) be 0.9 drawing, obtain high-strength high-conductivity Cu-Ag-Fe alloy wires；
Step 7, the final annealing heat treatment under steady magnetic field effect：
The Cu-Ag-Fe alloy wires that will be obtained, are placed in the steady magnetic field center of 12T, 450 DEG C of vacuum annealing treatment 2
Hour, it is slowly cooled to room temperature with stove, obtain high-strength high-conductivity Cu-Ag-Fe alloy wires.
High-strength high-conductivity Cu-Ag-Fe alloy wires obtained in the present embodiment, conductance is 77%IACS, and tension is strong
It is 1280MPa to spend.
Embodiment 2
A kind of preparation method of high-strength high-conductivity Cu-Ag-Fe alloys, comprises the following steps：
Step 1, prepares as cast condition Cu-Ag-Fe foundry alloys：
A kind of high-strength high-conductivity Cu-Ag-Fe alloys, component is by weight percentage：Cu: Ag: Fe is 95.0: 3.0:
2.0。
Electrolysis Cu, Ag and pure Fe with more than purity 99.9wt% are added to vacuum induction melting as raw material according to proportioning
Melting in stove, is then cast in water cooled copper mould, and pouring temperature is 1300 DEG C, obtains as cast condition Cu-Ag-Fe foundry alloys；
Step 2, the solidification of Cu-Ag-Fe alloys under action of alternating magnetic field：
The as cast condition Cu-Ag-Fe foundry alloys that will be prepared, are placed in 0.5T alternating magnetic fields center, are heated to 1300 DEG C, insulation
After 30 minutes, quick cooling obtains solidification state Cu-Ag-Fe alloys；
Step 3, the Homogenization Treatments of the lower alloy of steady magnetic field effect：
Solidification state Cu-Ag-Fe alloys are placed in the steady magnetic field center of 12T, 800 DEG C are heated to, 24 hours are incubated,
Homogenization Treatments are carried out, is then slowly cooled to room temperature with stove；
Step 4, predeformation：
By the Cu-Ag-Fe alloys after Homogenization Treatments, forged at room temperature, total draft of predeformation is 0.6；
Step 5, intermediate annealing heat treatment：
The Cu-Ag-Fe alloys after predeformation are placed in vacuum heat treatment furnace, are heated to 550 DEG C, be incubated 24 hours, with
Stove is slowly cooled to room temperature；
Step 6, redeformation：
By the Cu-Ag-Fe alloys after annealing heat-treats, at room temperature under the conditions of, carry out total draft and (obtained with step 4
Alloy on the basis of) be 0.95 drawing, obtain high-strength high-conductivity Cu-Ag-Fe alloy wires, its transmission electron microscope organization chart is shown in
Fig. 2；
Step 7, the final annealing heat treatment under steady magnetic field effect：
The Cu-Ag-Fe alloy wires that will be obtained, are placed in the steady magnetic field center of 20T, 500 DEG C of vacuum annealing treatment
24 hours, it is slowly cooled to room temperature with stove, obtains high-strength high-conductivity Cu-Ag-Fe alloy wires.
High-strength high-conductivity Cu-Ag-Fe alloy wires obtained in the present embodiment, conductance is 78%IACS, and tension is strong
It is 1050MPa to spend.
Embodiment 3
A kind of preparation method of high-strength high-conductivity Cu-Ag-Fe alloys, comprises the following steps：
Step 1, prepares as cast condition Cu-Ag-Fe foundry alloys：
A kind of high-strength high-conductivity Cu-Ag-Fe alloys, component is by weight percentage：Cu: Ag: Fe is 87.5: 11.0
∶1.5。
Electrolysis Cu, Ag and pure Fe with more than purity 99.9wt% are added to vacuum induction melting as raw material according to proportioning
Melting in stove, is then cast in water cooled copper mould, and pouring temperature is 1200 DEG C, obtains as cast condition Cu-Ag-Fe foundry alloys；
Step 2, the solidification of Cu-Ag-Fe alloys under action of alternating magnetic field：
The as cast condition Cu-Ag-Fe foundry alloys that will be prepared, are placed in 0.5T alternating magnetic fields center, are heated to 1200 DEG C, insulation
After 30 minutes, quick cooling obtains solidification state Cu-Ag-Fe alloys；
Step 3, the Homogenization Treatments of the lower alloy of steady magnetic field effect：
Solidification state Cu-Ag-Fe alloys are placed in the steady magnetic field center of 0.1T, 770 DEG C are heated to, insulation 12 is small
When, Homogenization Treatments are carried out, then it is slowly cooled to room temperature with stove；
Step 4, predeformation：
By the Cu-Ag-Fe alloys after Homogenization Treatments, rolled at room temperature, total draft of predeformation is 0.5；
Step 5, intermediate annealing heat treatment：
The Cu-Ag-Fe alloys after predeformation are placed in vacuum heat treatment furnace, are heated to 450 DEG C, be incubated 2 hours, with
Stove is slowly cooled to room temperature；
Step 6, redeformation：
By the Cu-Ag-Fe alloys after annealing heat-treats, at room temperature under the conditions of, carry out total draft and (obtained with step 4
Alloy on the basis of) be 0.8 rolling, obtain high-strength high-conductivity Cu-Ag-Fe sheet alloys；
Step 7, the final annealing heat treatment under steady magnetic field effect：
The Cu-Ag-Fe sheet alloys that will be obtained, are placed in the steady magnetic field of 30T, and 450 DEG C of vacuum annealings are processed 1 hour,
It is slowly cooled to room temperature with stove, obtains high-strength high-conductivity Cu-Ag-Fe sheet alloys.
High-strength high-conductivity Cu-Ag-Fe sheet alloys obtained in the present embodiment, conductance is 70%IACS, and tension is strong
It is 1420MPa to spend.High-strength high-conductivity Cu-Ag-Fe sheet alloy load-deformation curves are shown in Fig. 3 obtained in the present embodiment.
Embodiment 4
A kind of preparation method of high-strength high-conductivity Cu-Ag-Fe alloys, comprises the following steps：
Step 1, prepares as cast condition Cu-Ag-Fe foundry alloys：
A kind of high-strength high-conductivity Cu-Ag-Fe alloys, component is by weight percentage：Cu: Ag: Fe is 74.9: 25.0
∶0.1。
Electrolysis Cu, Ag and pure Fe with more than purity 99.9wt% are added to vacuum induction melting as raw material according to proportioning
Melting in stove, is then cast in water cooled copper mould, and pouring temperature is 1000 DEG C, obtains as cast condition Cu-Ag-Fe foundry alloys；
Step 2, the solidification of Cu-Ag-Fe alloys under action of alternating magnetic field：
The as cast condition Cu-Ag-Fe foundry alloys that will be prepared, are placed in 0.5T alternating magnetic fields center, are heated to 1000 DEG C, insulation
After 10 minutes, quick cooling obtains solidification state Cu-Ag-Fe alloys；
Step 3, the Homogenization Treatments of the lower alloy of steady magnetic field effect：
Solidification state Cu-Ag-Fe alloys are placed in the steady magnetic field center of 20T, 760 DEG C are heated to, 4 hours are incubated,
Homogenization Treatments are carried out, is then slowly cooled to room temperature with stove；
Step 4, predeformation：
By the Cu-Ag-Fe alloys after Homogenization Treatments, rolled at room temperature, total draft of predeformation is 0.3；
Step 5, intermediate annealing heat treatment：
The Cu-Ag-Fe alloys after predeformation are placed in vacuum heat treatment furnace, are heated to 350 DEG C, be incubated 2 hours, with
Stove is slowly cooled to room temperature；
Step 6, redeformation：
By the Cu-Ag-Fe alloys after annealing heat-treats, at room temperature under the conditions of, carry out total draft and (obtained with step 4
Alloy on the basis of) be 0.9999 rolling, obtain high-strength high-conductivity Cu-Ag-Fe sheet alloys；
Step 7, the final annealing heat treatment under steady magnetic field effect：
The Cu-Ag-Fe sheet alloys that will be obtained, are placed in the steady magnetic field center of 10T, 400 DEG C of vacuum annealing treatment 2
Hour, it is slowly cooled to room temperature with stove, obtain high-strength high-conductivity Cu-Ag-Fe sheet alloys.
High-strength high-conductivity Cu-Ag-Fe sheet alloys obtained in the present embodiment, conductance is 76%IACS, and tension is strong
It is 1100MPa to spend.
Embodiment 5
A kind of preparation method of high-strength high-conductivity Cu-Ag-Fe alloys, comprises the following steps：
Step 1, prepares as cast condition Cu-Ag-Fe foundry alloys：
A kind of high-strength high-conductivity Cu-Ag-Fe alloys, component is by weight percentage：Cu: Ag: Fe is 76.0: 22.0
∶2.0。
Electrolysis Cu, Ag and pure Fe with more than purity 99.9wt% are added to vacuum induction melting as raw material according to proportioning
Melting in stove, is then cast in water cooled copper mould, and pouring temperature is 1300 DEG C, obtains as cast condition Cu-Ag-Fe foundry alloys；
Step 2, the solidification of Cu-Ag-Fe alloys under action of alternating magnetic field：
The as cast condition Cu-Ag-Fe foundry alloys that will be prepared, are placed in 0.5T alternating magnetic fields center, are heated to 1300 DEG C, insulation
After 20 minutes, quick cooling obtains solidification state Cu-Ag-Fe alloys；
Step 3, the Homogenization Treatments of the lower alloy of steady magnetic field effect：
Solidification state Cu-Ag-Fe alloys are placed in the steady magnetic field center of 20T, 760 DEG C are heated to, 8 hours are incubated,
Homogenization Treatments are carried out, is then slowly cooled to room temperature with stove；
Step 4, predeformation：
By the Cu-Ag-Fe alloys after Homogenization Treatments, rolled at room temperature, total draft of predeformation is 0.7；
Step 5, intermediate annealing heat treatment：
The Cu-Ag-Fe alloys after predeformation are placed in vacuum heat treatment furnace, are heated to 500 DEG C, be incubated 4 hours, with
Stove is slowly cooled to room temperature；
Step 6, redeformation：
By the Cu-Ag-Fe alloys after annealing heat-treats, at room temperature under the conditions of, carry out total draft and (obtained with step 4
Alloy on the basis of) be 0.95 rolling, obtain high-strength high-conductivity Cu-Ag-Fe sheet alloys；
Step 7, the final annealing heat treatment under steady magnetic field effect：
The Cu-Ag-Fe sheet alloys that will be obtained, are placed in the steady magnetic field of 20T, and 450 DEG C of vacuum annealings are processed 2 hours,
It is slowly cooled to room temperature with stove, obtains high-strength high-conductivity Cu-Ag-Fe sheet alloys.
High-strength high-conductivity Cu-Ag-Fe sheet alloys obtained in the present embodiment, conductance is 55%IACS, and tension is strong
It is 1760MPa to spend.
Embodiment 6
A kind of preparation method of high-strength high-conductivity Cu-Ag-Fe alloys, comprises the following steps：
Step 1, prepares as cast condition Cu-Ag-Fe foundry alloys：
A kind of high-strength high-conductivity Cu-Ag-Fe alloys, component is by weight percentage：Cu: Ag: Fe is 93.5: 6.0:
0.5。
Electrolysis Cu, Ag and pure Fe with more than purity 99.9wt% are added to vacuum arc melting as raw material according to proportioning
Melting in stove, is then cast in water cooled copper mould, and pouring temperature is 1200 DEG C, obtains as cast condition Cu-Ag-Fe foundry alloys；
Step 2, the solidification of Cu-Ag-Fe alloys under action of alternating magnetic field：
The as cast condition Cu-Ag-Fe foundry alloys that will be prepared, are placed in 0.1T alternating magnetic fields center, are heated to 1200 DEG C, insulation
After 10 minutes, quick cooling obtains solidification state Cu-Ag-Fe alloys；
Step 3, the Homogenization Treatments of the lower alloy of steady magnetic field effect：
Solidification state Cu-Ag-Fe alloys are placed in the steady magnetic field center of 10T, 780 DEG C are heated to, 18 hours are incubated,
Homogenization Treatments are carried out, is then slowly cooled to room temperature with stove；
Step 4, predeformation：
By the Cu-Ag-Fe alloys after Homogenization Treatments, cold forging is carried out at room temperature, total draft of predeformation is 0.4；
Step 5, intermediate annealing heat treatment：
The Cu-Ag-Fe alloys after predeformation are placed in vacuum heat treatment furnace, are heated to 400 DEG C, be incubated 2 hours, with
Stove is slowly cooled to room temperature；
Step 6, redeformation：
By the Cu-Ag-Fe alloys after annealing heat-treats, at room temperature under the conditions of, carry out total draft and (obtained with step 4
Alloy on the basis of) be 0.98 drawing, obtain high-strength high-conductivity Cu-Ag-Fe alloy wires；
Step 7, the final annealing heat treatment under steady magnetic field effect：
The Cu-Ag-Fe alloy wires that will be obtained, are placed in the steady magnetic field center of 0.1T, 400 DEG C of vacuum annealing treatment
4 hours, it is slowly cooled to room temperature with stove, obtains high-strength high-conductivity Cu-Ag-Fe alloy wires.
High-strength high-conductivity Cu-Ag-Fe alloy wires obtained in the present embodiment, conductance is 72%IACS, and tension is strong
It is 1150MPa to spend.
Embodiment 7
A kind of preparation method of high-strength high-conductivity Cu-Ag-Fe alloys, comprises the following steps：
Step 1, prepares as cast condition Cu-Ag-Fe foundry alloys：
A kind of high-strength high-conductivity Cu-Ag-Fe alloys, component is by weight percentage：Cu: Ag: Fe is 81.9: 18.0
∶0.1。
Electrolysis Cu, Ag and pure Fe with more than purity 99.9wt% are added to vacuum induction melting as raw material according to proportioning
Melting in stove, is then cast in water cooled copper mould, and pouring temperature is 1000 DEG C, obtains as cast condition Cu-Ag-Fe foundry alloys；
Step 2, the solidification of Cu-Ag-Fe alloys under action of alternating magnetic field：
The as cast condition Cu-Ag-Fe foundry alloys that will be prepared, are placed in 0.5T alternating magnetic fields center, are heated to 1100 DEG C, insulation
After 5 minutes, quick cooling obtains solidification state Cu-Ag-Fe alloys；
Step 3, the Homogenization Treatments of the lower alloy of steady magnetic field effect：
Solidification state Cu-Ag-Fe alloys are placed in the steady magnetic field center of 30T, 770 DEG C are heated to, 12 hours are incubated,
Homogenization Treatments are carried out, is then slowly cooled to room temperature with stove；
Step 4, predeformation：
By the Cu-Ag-Fe alloys after Homogenization Treatments, rolled at room temperature, total draft of predeformation is 0.4；
Step 5, intermediate annealing heat treatment：
The Cu-Ag-Fe alloys after predeformation are placed in vacuum heat treatment furnace, are heated to 350 DEG C, be incubated 0.5 hour,
It is slowly cooled to room temperature with stove；
Step 6, redeformation：
By the Cu-Ag-Fe alloys after annealing heat-treats, at room temperature under the conditions of, carry out total draft and (obtained with step 4
Alloy on the basis of) be 0.5 rolling, obtain high-strength high-conductivity Cu-Ag-Fe sheet alloys；
Step 7, the final annealing heat treatment under steady magnetic field effect：
The Cu-Ag-Fe sheet alloys that will be obtained, are placed in the steady magnetic field center of 10T, 300 DEG C of vacuum annealing treatment
0.5 hour, it is slowly cooled to room temperature with stove, obtains high-strength high-conductivity Cu-Ag-Fe sheet alloys.
High-strength high-conductivity Cu-Ag-Fe sheet alloys obtained in the present embodiment, conductance is 88%IACS, and tension is strong
It is 750MPa to spend.
Claims (5)
1. a kind of preparation method of high-strength high-conductivity Cu-Ag-Fe alloys, it is characterised in that specifically include following steps：
Step 1, prepares as cast condition Cu-Ag-Fe foundry alloys：
By Cu-Ag-Fe alloy raw materials by proportioning melting, as cast condition Cu-Ag-Fe foundry alloys are obtained in 1000~1300 DEG C of cast；
Wherein, described Cu-Ag-Fe alloys, component is by weight percentage：Ag contents are for 3.0%~25%, Fe contents
0.1%~2%, balance of Cu；
Step 2, the solidification of Cu-Ag-Fe alloys under action of alternating magnetic field：
By as cast condition Cu-Ag-Fe foundry alloys, 0.1~1T alternating magnetic fields center is placed in, is heated to 1000~1300 DEG C, insulation 5
~30 minutes, then quick cooling obtained solidification state Cu-Ag-Fe alloys；
Step 3, the Homogenization Treatments of the lower alloy of steady magnetic field effect：
State Cu-Ag-Fe alloys will be solidified, the steady magnetic field center of 0.1~30T will be placed in, 760~800 DEG C, insulation will be heated to
4~24 hours, then it is slowly cooled to room temperature with stove；
Step 4, predeformation：
By the Cu-Ag-Fe alloys after Homogenization Treatments, pre-treatment is carried out, total draft of predeformation is 0.3~0.7；
Step 5, intermediate annealing heat treatment：
The Cu-Ag-Fe alloys after predeformation are placed in vacuum heat treatment furnace, are heated to 350~550 DEG C, insulation 0.5~24
Hour, then it is slowly cooled to room temperature with stove；
Step 6, redeformation：
By the Cu-Ag-Fe alloys after annealing heat-treats, redeformation treatment is carried out, total draft of redeformation is 0.5~
0.9999；Obtain Cu-Ag-Fe alloy wires/sheet material；
Step 7, the final annealing heat treatment under steady magnetic field effect：
By Cu-Ag-Fe alloy wires/sheet material, the steady magnetic field center of 0.1~30T is placed in, in vacuum environment, heating
To 300~500 DEG C, 0.5~24 hour is incubated, is then slowly cooled to room temperature with stove, obtain high-strength high-conductivity Cu-Ag-
Fe alloy wires/sheet material.
2. a kind of preparation method of high-strength high-conductivity Cu-Ag-Fe alloys as claimed in claim 1, it is characterised in that institute
In the step of stating 1, the concrete operations of melting are：Electrolysis Cu, Ag and pure Fe with more than purity 99.9wt% as raw material, according to matching somebody with somebody
Melting in than being added to vacuum induction melting furnace or vacuum arc melting furnace, is then cast in water cooled copper mould, obtains as cast condition Cu-
Ag-Fe foundry alloys.
3. a kind of preparation method of high-strength high-conductivity Cu-Ag-Fe alloys as claimed in claim 1, it is characterised in that institute
In the step of stating 4, the method that pre-treatment is used is forging, rolling or drawing process.
4. a kind of preparation method of high-strength high-conductivity Cu-Ag-Fe alloys as claimed in claim 1, it is characterised in that institute
In the step of stating 6, the method that redeformation treatment is used is forging, rolling or drawing process.
5. a kind of preparation method of high-strength high-conductivity Cu-Ag-Fe alloys as claimed in claim 1, it is characterised in that institute
State method preparation high-strength high-conductivity Cu-Ag-Fe alloys, conductance be 55~88%IACS, tensile strength be 750~
1760MPa。
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| CN107419132B (en) * | 2017-06-22 | 2019-04-30 | 安徽晋源铜业有限公司 | A kind of lead frame corson alloy material and preparation method thereof |
| EP3666914B1 (en) | 2017-08-10 | 2024-04-03 | Tanaka Kikinzoku Kogyo K.K. | High strength/highly conductive copper alloy plate material and method for producing same |
| CN108374103B (en) * | 2018-03-27 | 2019-10-29 | 河南理工大学 | Cu-Fe-C-Ag alloy |
| CN110004320B (en) | 2019-05-15 | 2020-07-28 | 东北大学 | High-strength high-conductivity Cu-Ag-Sc alloy and preparation method thereof |
| CN114293061B (en) * | 2021-12-03 | 2022-06-24 | 中南大学 | Cu-Fe-X alloy and preparation method and application thereof |
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| CN102031467A (en) * | 2010-11-29 | 2011-04-27 | 东北大学 | Method for preparing in-situ deformation Cu-Ag composite material by using magnetic field |
| CN102031399A (en) * | 2010-11-11 | 2011-04-27 | 东北大学 | Method for preparing Cu-Fe alloy under action of magnetic field |
| CN102400007A (en) * | 2011-11-29 | 2012-04-04 | 东北大学 | Eutectic strengthening reinforced Cu-Ag alloy and preparation method thereof |
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| CN102031399A (en) * | 2010-11-11 | 2011-04-27 | 东北大学 | Method for preparing Cu-Fe alloy under action of magnetic field |
| CN102031467A (en) * | 2010-11-29 | 2011-04-27 | 东北大学 | Method for preparing in-situ deformation Cu-Ag composite material by using magnetic field |
| CN102400007A (en) * | 2011-11-29 | 2012-04-04 | 东北大学 | Eutectic strengthening reinforced Cu-Ag alloy and preparation method thereof |
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