CN107299246A - A kind of high-strength highly-conductive Cu Cr Mg Sn Ce alloy wires and preparation method thereof - Google Patents
A kind of high-strength highly-conductive Cu Cr Mg Sn Ce alloy wires and preparation method thereof Download PDFInfo
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C9/00—Alloys based on copper
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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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Abstract
The invention discloses a kind of high-strength highly-conductive Cu Cr Mg Sn Ce alloy wires and preparation method thereof, belong to conductivity type Cu alloy material field, its composition includes Cu, Cr, Mg, Sn, Ce element and inevitable impurity, wherein, Cu is alloy substrate, its shared mass ratio is higher than 98%, and mass ratio shared by other compositions is as follows：Cr 0.10~0.40%, Mg 0.02~0.15%, Sn 0.02~0.10%, Ce 0.02~0.10%, and Mg and Sn gross mass accounting between 0.08~0.17%, the gross mass of inevitable impurity is less than 0.05%；The preparation method includes melting, continuously casting, the step such as cold and hot working and heat treatment.The present invention has the excellent comprehensive performances such as high intensity, highly conductive, endurance, high temperature resistance softening, corrosion resistance simultaneously.
Description
Technical field
The present invention relates to conductivity type Cu alloy material field, it is specifically related to a kind of high-strength highly-conductive Cu-Cr-Mg-Sn-Ce and closes
Gold thread material and preparation method thereof.
Background technology
Copper is the metal material that the mankind have found and used earliest, and the fusing point of copper is low, easy alloying, be the mankind use it is most ancient
One of old metal, early in B.C. 7000, the mankind just recognized native copper, alive about at B.C. 3000 or so
Boundary various regions occur in that the copper-smelting industry with higher level.People start to use copper alloy household utensil before 3500, once
Brilliant Ancient Bronze civilization is started.
Copper alloy has more premium properties, with excellent alloying characteristic, is that environmental protection relatively inexpensive at present is led
Electric material, is mainly used in the fields such as lead frame, welding electrode, switch contact, electric trains hollow wire.At present, high-strength height
Conductivity copper alloy is mainly the alloys such as CuZr, Cu-Cr, Cu-Cd, Cu-Ni, Cu-Fe, Cu-Ag, Cu-Nb and its composite, and copper is closed
During golden high-strength highly-conductive, problem is encountered that：A small amount of alloying element reinforcing DeGrain；Substantial amounts of alloying element meeting
Deteriorate the electric conductivity of alloy；And copper conductor electrical conductivity of the prior art cannot concurrently reach high standard with intensity, and it is resistance to
Corrosion is poor.
The content of the invention
1. the technical problem to be solved
The technical problem to be solved in the present invention be to provide a kind of high-strength highly-conductive Cu-Cr-Mg-Sn-Ce alloy wires and its
Preparation method, Cu-Cr-Mg-Sn-Ce alloy wires have high intensity, highly conductive, endurance, high temperature resistance softening, corrosion resistance simultaneously
Deng excellent comprehensive performance.
2. technical scheme
To solve the above problems, the present invention is adopted the following technical scheme that：
A kind of high-strength highly-conductive Cu-Cr-Mg-Sn-Ce alloy wires, the composition of the alloy wire include Cu, Cr, Mg, Sn,
Ce elements and inevitable impurity, wherein, Cu is alloy substrate, and its shared mass ratio is higher than 98%, shared by other compositions
Mass ratio is as follows：
Cr 0.10~0.40%；
Mg 0.02~0.15%；
Sn 0.02~0.10%；
Ce 0.02~0.10%；
And Mg and Sn gross mass accounting, between 0.08~0.17%, the gross mass of inevitable impurity is less than
0.05%.
Further, mass ratio shared by each composition is as follows：
Cr 0.40%；
Mg 0.08%；
Sn 0.06%；
Ce 0.10%；
The gross mass of inevitable impurity is 0.03%, and surplus is copper.
Specifically, the Ce elements are with CeO2Form be added in alloy material.Ceria (CeO2) it is cerium (Ce)
Oxide, the chemical valence of Ce elements wherein is+4 valencys, there is strong oxidizing property.Ceria it is general not with common acid reaction, it is high
Temperature is lower and redox reaction occurs for carbon monoxide；Under room temperature, normal pressure, ceria is the most stable of compound of cerium.With it
Its Ce compound phase ratio, existence condition is more relaxed, then can also compare and be easy to get.
Present invention also offers the preparation method of above-mentioned high-strength highly-conductive Cu-Cr-Mg-Sn-Ce alloy wires, including following step
Suddenly：
(1) melting：Using by furnace lining material of magnesia has core power frequency induction furnace to melt fine copper, adds 100~150mm thick
The graphite flakes of degree are to completely cut off the oxygen and hydrogen in air；In 1450~1550 DEG C of temperature environment, with bell jar by block
CeO2Powder is pressed into copper liquid, rejoins graphite flakes, it is ensured that thickness is 150~200mm；Then reduction temperature to 1220~
1280 DEG C, add after Sn, Mg element, insulation 10min, add Cr elements and be incubated；Copper liquid is transferred to by guarantor by undercurrent passage
In warm stove, tightly covered using borax and glass dust in holding furnace；
(2) continuously casting：Stokehold constituent analysis is carried out to the alloy melt in holding furnace, ceramic material is used after meeting the requirements
Crystallizer is carried out during continuously casting, continuously casting, and melt temperature is 1250~1300 DEG C, and drawing speed is 10~15mm/
S, pitch is 2~3.5mm/ times, and dwell time is 0.4~0.7s/ times, and hydraulic pressure is 0.3~0.5Mpa, and water jacket inflow temperature is less than
30 DEG C, leaving water temperature is less than 55 DEG C, continuously prepares alloy pole stock；
(3) cold and hot working and heat treatment：Solution hardening processing is directly carried out to fluid origin alloy pole stock, solid solubility temperature is
950~1000 DEG C, quenched with room temperature water, the deflection of material is increased by continuously extruded expansion deformation, is pulled to by huge
A diameter of 15~18mm, is cold-rolled to a diameter of 9~12mm, and a diameter of 4~7mm is pulled to greatly, in be pulled to a diameter of 1.5~3mm, pass through
After 400~500 DEG C of 0.5~1.5h of insulation, quenched with room temperature water, promote to separate out while realizing and eliminate portion of residual stress
The low temperature lack time effect of phase is separated out；After overpickling, be drawn to a diameter of 0.7~1mm, then at 150~250 DEG C carry out 15~
40h low temperature aging；A diameter of 0.6~0.4mm hard state fine rule is made by drawing, 400-500 DEG C of timeliness 1-5h's of progress
Ageing Treatment, finally carries out the wire rod that single pass is drawn to 0.1-0.3mm diameters again.
As the present invention to the preferred of such scheme, melting furnace is always ensured that more than 100mm thickness in the step (1)
Crystalline flake graphite is covered, crystalline flake graphite using preceding needing at a temperature of 400-450 DEG C to be incubated 7-10h in oxygen-free environment to promote water
The abundant evaporation divided.
As the present invention to the preferred of such scheme, the crystallizer of the middle ceramic material used of the step (2) is nitridation
The crystallizer of boron ceramic material.
As the present invention to the preferred of such scheme, the addition sequence of Mg, Sn, Cr element is first in the step (1)
Add simultaneously after Mg elements and Sn elements, insulation 10min, add Cr elements, wherein Mg, Cr is added in the way of intermediate alloy,
Sn elements are added in the form of simple metal.
As the present invention to the preferred of such scheme, a diameter of the 14 of obtained alloy pole stock in the step (2)~
18mm, length is more than 50m.
As the present invention to the preferred of such scheme, in the step (3) extrusion ratio of continuously extruded expansion deformation between
Between 120~140%.
3. beneficial effect
(1) alloy wire provided by the present invention adds Cr, Mg, Sn, Ce element using Cu as matrix, constitutes a kind of new-type
Copper alloy.Pure Cu has conductive, thermal conductivity strong, it is easy to the advantages of plastic working；Cr can significantly improve the intensity of alloy, high temperature resistance
The property of softening and corrosion resisting property, but also result in electrical conductivity decline；Mg elements can improve the intensity and fatigue performance of copper alloy；Sn
Element can effectively improve the processing hardening of copper alloy；Ce elements can purify Copper substrate, it is ensured that material has higher electrical conductivity,
And the tensile strength to material, corrosion resistance and other multiple performances are beneficial.With reference to the advantage of each element so that alloy wire is simultaneously
With excellent comprehensive performances such as high intensity, high conductivity, endurance, high temperature resistance softening, corrosion resistances.
(2) because Cr, Sn, Mg element can improve the strength character of alloy, Ce elements can purify matrix so that institute of the present invention
The alloy wire of offer has excellent extensibility.The single maximum length of obtained alloy wire is more than 50m, and gauge or diameter of wire is small
In 0.3mm, so as to increase length of wires, so output wire can be increased on the basis of equal raw material；Using when, can reduce and apply
Work joint quantity, so as to improve operating efficiency.
(3) present invention uses this rare earth elements of Ce, and Ce elements are abundance highests in rare earth element, accordingly, its
Costco Wholesale is relatively low；And under room temperature, normal pressure, CeO2It is the most stable of compounds of Ce, the compound phase ratio with other Ce is present
Condition is more relaxed, then can also compare and be easy to get.Ce elements are with CeO2Form be added in alloy material, realize the low of Ce
Cost is added.
(4) present invention uses special heat treatment step：High temperature lack time effect quenching+cold deformation+low temperature long-time timeliness+cold
Deformation+high temperature timeliness again, the intensity and toughness properties of alloy can be improved simultaneously, the anti-fatigue performance of alloy is effectively improved.
The present invention has the excellent comprehensive performances such as high intensity, highly conductive, endurance, high temperature resistance softening, corrosion resistance；Can also be
Increase output wire on the basis of equal raw material；And there is the characteristics of low cost adds Ce elements；Via special heat treatment step,
It can ensure that alloy has the matching of the performance such as good intensity, toughness, antifatigue, corrosion resistance.
Embodiment
Below by embodiment, the present invention is further detailed explanation.
Embodiment 1
A kind of high-strength highly-conductive Cu-Cr-Mg-Sn-Ce alloy wires, its composition includes Cu, Cr, Mg, Sn, Ce element and can not
The impurity avoided, mass ratio shared by each composition is as follows：
Cr 0.40%；
Mg 0.15%；
Sn 0.02%；
Ce 0.10%；
The gross mass of inevitable impurity is 0.03%, and surplus is copper
Specifically, the Ce elements are with CeO2Form be added in alloy material.
The preparation method of above-mentioned high-strength highly-conductive Cu-Cr-Mg-Sn-Ce alloy wires, comprises the following steps：
(1) melting：Using by furnace lining material of magnesia has core power frequency induction furnace to melt fine copper, adds 100mm thickness
Graphite flakes are to completely cut off the oxygen and hydrogen in air；In 1450 DEG C of temperature environment, with bell jar by the CeO of block2Powder is pressed into
Copper liquid, rejoins graphite flakes, it is ensured that thickness is 150mm, is incubated 15min, promotes CeO2Decompose and deoxidation；Then temperature is reduced
Degree adds pure Sn and Cu-Mg intermediate alloys to 1220 DEG C, is incubated 10min, promotes Mg, Sn dissolving；It is eventually adding in the middle of Cu-Cr
Alloy is simultaneously incubated；Copper liquid is transferred in holding furnace by undercurrent passage, tightly covered using borax and glass dust in holding furnace；
(2) continuously casting：Stokehold constituent analysis is carried out to the alloy melt in holding furnace, ceramic material is used after meeting the requirements
Crystallizer is carried out during continuously casting, continuously casting, and melt temperature is 1250 DEG C, and drawing speed is 10mm/s, and pitch is
2mm/ times, dwell time is 0.7s/ times, and hydraulic pressure is 0.3MPa, and water jacket inflow temperature is 28 DEG C, and leaving water temperature is 54 DEG C, continuously
A diameter of 14mm is prepared, length is 53m alloy pole stock；
(3) cold and hot working and heat treatment：Solution hardening processing is directly carried out to fluid origin alloy pole stock, solid solubility temperature is
950 DEG C, quenched with room temperature water, the deflection of material is increased by continuously extruded expansion deformation, extrusion ratio is 120%, warp
Cross it is huge be pulled to a diameter of 15mm, be cold-rolled to a diameter of 9mm, a diameter of 4mm be pulled to greatly, in be pulled to a diameter of 1.5mm, through 400 DEG C
It is incubated after 1.5h, is quenched with room temperature water, realizes that the lack time effect for promoting precipitated phase while eliminating portion of residual stress is separated out；
After overpickling, a diameter of 1mm is drawn to, 15h low temperature aging is then carried out at 150 DEG C；It is made by drawing a diameter of
0.6mm hard state fine rule, carries out 500 DEG C of timeliness 1h Ageing Treatment again, and single pass is carried out after last pickling, and to be drawn to 0.3mm straight
The wire rod in footpath.
After testing, the intensity of made alloy wire is 600Mpa in the present embodiment, and conductance is 81%IACS, softening temperature
For 545 DEG C, fatigue performance is 2 times of fine copper.
Embodiment 2
A kind of high-strength highly-conductive Cu-Cr-Mg-Sn-Ce alloy wires, its composition includes Cu, Cr, Mg, Sn, Ce element and can not
The impurity avoided, mass ratio shared by each composition is as follows：
Cr 0.38%；
Mg 0.08%；
Sn 0.06%；
Ce 0.10%；
The gross mass of inevitable impurity is 0.04%, and surplus is copper.
Specifically, the Ce elements are with CeO2Form be added in alloy material.
The preparation method of above-mentioned high-strength highly-conductive Cu-Cr-Mg-Sn-Ce alloy wires, comprises the following steps：
(1) melting：Using by furnace lining material of magnesia has core power frequency induction furnace to melt fine copper, adds 125mm thickness
Graphite flakes are to completely cut off the oxygen and hydrogen in air；In 1500 DEG C of temperature environment, with bell jar by the CeO of block2Powder is pressed into
Copper liquid, rejoins graphite flakes, it is ensured that thickness is 180mm, is incubated 20min, promotes CeO2Decompose and deoxidation；Then temperature is reduced
Degree adds pure Sn and Cu-Mg intermediate alloys to 1250 DEG C, is incubated 10min, promotes Mg, Sn dissolving；It is eventually adding in the middle of Cu-Cr
Alloy is simultaneously incubated；Copper liquid is transferred in holding furnace by undercurrent passage, tightly covered using borax and glass dust in holding furnace；
(2) continuously casting：Stokehold constituent analysis is carried out to the alloy melt in holding furnace, ceramic material is used after meeting the requirements
Crystallizer is carried out during continuously casting, continuously casting, and melt temperature is 1270 DEG C, and drawing speed is 13mm/s, and pitch is
3mm/ times, dwell time is 0.5s/ times, and hydraulic pressure is 0.4Mpa, and water jacket inflow temperature is 26 DEG C, and leaving water temperature is 52 DEG C, continuously
A diameter of 16mm is prepared, length is 55m alloy pole stock；
(3) cold and hot working and heat treatment：Solution hardening processing is directly carried out to fluid origin alloy pole stock, solid solubility temperature is
980 DEG C, quenched with room temperature water, the deflection of material is increased by continuously extruded expansion deformation, extrusion ratio is 130%, warp
Cross it is huge be pulled to a diameter of 17mm, be cold-rolled to a diameter of 11mm, a diameter of 5mm be pulled to greatly, in be pulled to a diameter of 2.5mm, through 450 DEG C
It is incubated after 1h, is quenched with room temperature water, realizes the low temperature lack time effect analysis for promoting precipitated phase while eliminating portion of residual stress
Go out；After overpickling, a diameter of 0.8mm is drawn to, 28h low temperature aging is then carried out at 200 DEG C；It is made directly by drawing
Footpath is 0.5mm hard state fine rule, carries out 450 DEG C of timeliness 2.5h Ageing Treatment again, finally, and single pass drawing is carried out after pickling
To the wire rod of 0.2mm diameters.
After testing, the intensity of made alloy wire is 580Mpa in the present embodiment, and conductance is 82%IACS, softening temperature
For 535 DEG C, fatigue performance is 2.2 times of fine copper.
Embodiment 3
A kind of high-strength highly-conductive Cu-Cr-Mg-Sn-Ce alloy wires, its composition includes Cu, Cr, Mg, Sn, Ce element and can not
The impurity avoided, mass ratio shared by each composition is as follows：
Cr 0.10%；
Mg 0.02%；
Sn 0.10%；
Ce 0.02%；
The gross mass of inevitable impurity is 0.05%, and surplus is copper.
Specifically, the Ce elements are with CeO2Form be added in alloy material.
The preparation method of above-mentioned high-strength highly-conductive Cu-Cr-Mg-Sn-Ce alloy wires, comprises the following steps：
(1) melting：Using by furnace lining material of magnesia has core power frequency induction furnace to melt fine copper, adds 150mm thickness
Graphite flakes are to completely cut off the oxygen and hydrogen in air；In 1550 DEG C of temperature environment, with bell jar by the CeO of block2Powder is pressed into
Copper liquid, rejoins graphite flakes, it is ensured that thickness is 200mm, is incubated 15~25min, promotes CeO2Decompose and deoxidation；Then drop
Low temperature adds pure Sn and Cu-Mg intermediate alloys to 1280 DEG C, is incubated 10min, promotes Mg, Sn dissolving；It is eventually adding Cu-Cr
Intermediate alloy is simultaneously incubated；Copper liquid is transferred in holding furnace by undercurrent passage, it is tight using borax and glass dust in holding furnace
Covering；
(2) continuously casting：Stokehold constituent analysis is carried out to the alloy melt in holding furnace, ceramic material is used after meeting the requirements
Crystallizer is carried out during continuously casting, continuously casting, and melt temperature is 1300 DEG C, and drawing speed is 15mm/s, and pitch is
3.5mm/ times, dwell time is 0.4s/ times, and hydraulic pressure is 0.5MPa, and water jacket inflow temperature is 27 DEG C, and leaving water temperature is 53 DEG C, even
Continuous to prepare a diameter of 18mm, length is 58m alloy pole stock；
(4) cold and hot working and heat treatment：Solution hardening processing is directly carried out to fluid origin alloy pole stock, solid solubility temperature is
1000 DEG C, quenched with room temperature water, the deflection of material is increased by continuously extruded expansion deformation, extrusion ratio is 140%, warp
Cross it is huge be pulled to a diameter of 18mm, be cold-rolled to a diameter of 12mm, a diameter of 7mm be pulled to greatly, in be pulled to a diameter of 3mm, through 500 DEG C guarantor
After warm 0.5h, quenched with room temperature water, realize the low temperature lack time effect analysis for promoting precipitated phase while eliminating portion of residual stress
Go out；After overpickling, a diameter of 0.7mm is drawn to, 40h low temperature aging is then carried out at 250 DEG C；It is made directly by drawing
Footpath is 0.4mm hard state fine rule, carries out 400 DEG C of timeliness 2.5h Ageing Treatment again, finally, and single pass drawing is carried out after pickling
To the wire rod of 0.1mm diameters.
After testing, the intensity of made alloy wire is 560Mpa in the present embodiment, and conductance is 82.5%IACS, softening temperature
Spend for 520 DEG C, fatigue performance is 2.5 times of fine copper.
From the detection data in each embodiment, the present invention has high intensity, high conductivity, endurance, anti-height simultaneously
The excellent comprehensive performances such as temperature softening.
Those of ordinary skill in the art it should be appreciated that the embodiment of the above be intended merely to explanation the present invention,
And be not used as limitation of the invention, as long as in the spirit of the present invention, the change to embodiment described above
Change, modification will all fall in scope of the presently claimed invention.
Claims (9)
1. a kind of high-strength highly-conductive Cu-Cr-Mg-Sn-Ce alloy wires, it is characterised in that the composition of the alloy wire include Cu,
Cr, Mg, Sn, Ce element and inevitable impurity, wherein, Cu is alloy substrate, and its shared mass ratio is higher than 98%, other
Mass ratio is as follows shared by composition：
Cr 0.10~0.40%；
Mg 0.02~0.15%；
Sn 0.02~0.10%；
Ce 0.02~0.10%；
And Mg and Sn gross mass accounting is between 0.08~0.17%, the gross mass of inevitable impurity is less than 0.05%,
Surplus is copper.
2. a kind of high-strength highly-conductive Cu-Cr-Mg-Sn-Ce alloy wires according to claim 1, it is characterised in that described each
Mass ratio is as follows shared by composition：
Cr 0.40%；
Mg 0.08%；
Sn 0.06%；
Ce 0.10%；
The gross mass of inevitable impurity is less than 0.03%, and surplus is copper.
3. a kind of high-strength highly-conductive Cu-Cr-Mg-Sn-Ce alloy wires according to claim 1 or 2, it is characterised in that institute
Ce elements are stated with CeO2Form be added in alloy material.
4. the preparation method of high-strength highly-conductive Cu-Cr-Mg-Sn-Ce alloy wires according to claim 1, it is characterised in that
Comprise the following steps：
(1) melting：Using by furnace lining material of magnesia has core power frequency induction furnace to melt fine copper, adds 100~150mm thickness
Graphite flakes are to completely cut off the oxygen and hydrogen in air；In 1450~1550 DEG C of temperature environment, with bell jar by the CeO of block2Powder
End press-in copper liquid, rejoins graphite flakes, it is ensured that the thickness of graphite flakes is 150~200mm；Then temperature is reduced to 1220
~1280 DEG C, Sn and Mg elements are added, Cr elements is eventually adding and is incubated；Copper liquid is transferred to by holding furnace by undercurrent passage
In, tightly covered using borax and glass dust in holding furnace；
(2) continuously casting：Stokehold constituent analysis is carried out to the alloy melt in holding furnace, crystallized after meeting the requirements with ceramic material
Device is carried out during continuously casting, continuously casting, and melt temperature is 1250~1300 DEG C, and drawing speed is 10~15mm/s, section
Away from for 2~3.5mm/ times, dwell time is 0.4~0.7s/ times, and hydraulic pressure is 0.3~0.5Mpa, and water jacket inflow temperature is less than 30
DEG C, leaving water temperature is less than 55 DEG C, continuously prepares alloy pole stock；
(3) cold deformation and heat treatment：Directly carrying out solution hardening processing to fluid origin alloy pole stock, solid solubility temperature is 950~
1000 DEG C, quenched with room temperature water, increase the deflection of material by continuously extruded expansion deformation, extrusion ratio between 120~
Between 140%, a diameter of 15~18mm is pulled to by huge, a diameter of 9~12mm is cold-rolled to, a diameter of 4~7mm is pulled to greatly, in
A diameter of 1.5~3mm is pulled to, after 400~500 DEG C of 0.5~1.5h of insulation, is quenched with room temperature water, it is ensured that alloy is transgranular
In lack time effect state, i.e., still retain a large amount of supersaturated solute atoms transgranular, matrix precipitate is in the long megastage, it is ensured that close
Jin Jing circle is in the long megastage that overaging stage, i.e. Grain Boundary Precipitates are basically completed precipitated phase, and the stage is roughened in precipitated phase
Initial stage；After overpickling, a diameter of 0.7~1mm is drawn to, when 15~40h low temperature is then carried out at 150~250 DEG C
Effect；A diameter of 0.6~0.4mm hard state fine rule is made by drawing, 400-500 DEG C of timeliness 1-5h Ageing Treatment again is carried out,
Finally carry out the wire rod that single pass is drawn to 0.1-0.3mm diameters.
5. preparation method according to claim 4, it is characterised in that melting furnace, which is always ensured that, in the step (1) is more than
The crystalline flake graphite covering of 100mm thickness, crystalline flake graphite is using preceding needing to be incubated 7- in oxygen-free environment at a temperature of 400-450 DEG C
10h is to promote the abundant evaporation of moisture.
6. preparation method according to claim 4, it is characterised in that the knot of the ceramic material used in the step (2)
Brilliant device is the crystallizer that boron nitride ceramic material makes.
7. preparation method according to claim 4, it is characterised in that the addition of Mg, Sn, Cr element in the step (1)
Order adds Cr elements, wherein Mg, Cr are with intermediate alloy to add first after Mg elements and Sn elements, insulation 10min simultaneously
Mode is added, and Sn elements are added in the form of simple metal.
8. preparation method according to claim 4, it is characterised in that obtained alloy pole stock is straight in the step (2)
Footpath is 14~18mm, and length is more than 50m.
9. preparation method according to claim 4, it is characterised in that continuously extruded expansion deformation in the step (3)
Extrusion ratio is between 120~140%.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111411258A (en) * | 2020-05-26 | 2020-07-14 | 江西理工大学 | Cu-Sn alloy superfine wire with high strength and high conductivity and preparation method thereof |
| CN114086026A (en) * | 2021-10-11 | 2022-02-25 | 铜陵精达新技术开发有限公司 | Conductor wire for photovoltaic inverter and preparation method thereof |
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| JPH04363812A (en) * | 1991-06-11 | 1992-12-16 | Opt D D Melco Lab:Kk | Lead wire |
| CN105063413A (en) * | 2015-07-29 | 2015-11-18 | 温州银泰合金材料有限公司 | Copper-based electric contact material and manufacturing technology thereof |
| CN105088010A (en) * | 2015-08-31 | 2015-11-25 | 河南科技大学 | High-strength and high-conductivity rare earth copper and zirconium alloy and preparation method thereof |
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| CN111411258A (en) * | 2020-05-26 | 2020-07-14 | 江西理工大学 | Cu-Sn alloy superfine wire with high strength and high conductivity and preparation method thereof |
| CN111411258B (en) * | 2020-05-26 | 2021-07-23 | 江西理工大学 | Cu-Sn alloy superfine wire with high strength and high conductivity and preparation method thereof |
| CN114086026A (en) * | 2021-10-11 | 2022-02-25 | 铜陵精达新技术开发有限公司 | Conductor wire for photovoltaic inverter and preparation method thereof |
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