CN1362710A - Composite fiber reinforced Cu-Mg-Cr conductor material and its prepn - Google Patents
Composite fiber reinforced Cu-Mg-Cr conductor material and its prepn Download PDFInfo
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- CN1362710A CN1362710A CN 02110630 CN02110630A CN1362710A CN 1362710 A CN1362710 A CN 1362710A CN 02110630 CN02110630 CN 02110630 CN 02110630 A CN02110630 A CN 02110630A CN 1362710 A CN1362710 A CN 1362710A
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- 239000004020 conductor Substances 0.000 title claims abstract description 15
- 239000000835 fiber Substances 0.000 title claims abstract description 9
- 239000000463 material Substances 0.000 title claims description 17
- 239000002131 composite material Substances 0.000 title description 3
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 17
- 229910052709 silver Inorganic materials 0.000 claims abstract description 10
- 238000000137 annealing Methods 0.000 claims abstract description 9
- 229910052802 copper Inorganic materials 0.000 claims abstract description 9
- 238000002360 preparation method Methods 0.000 claims abstract description 6
- 239000011651 chromium Substances 0.000 claims description 19
- 238000005868 electrolysis reaction Methods 0.000 claims description 6
- 238000013019 agitation Methods 0.000 claims description 4
- 238000007872 degassing Methods 0.000 claims description 4
- 238000005554 pickling Methods 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 2
- 229910045601 alloy Inorganic materials 0.000 abstract description 9
- 239000000956 alloy Substances 0.000 abstract description 9
- 239000000203 mixture Substances 0.000 abstract description 2
- 238000002844 melting Methods 0.000 abstract 2
- 230000008018 melting Effects 0.000 abstract 2
- 238000005266 casting Methods 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 238000000265 homogenisation Methods 0.000 abstract 1
- 230000006698 induction Effects 0.000 abstract 1
- 238000003756 stirring Methods 0.000 abstract 1
- 239000010949 copper Substances 0.000 description 13
- 238000010622 cold drawing Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 229910000510 noble metal Inorganic materials 0.000 description 2
- 238000007514 turning Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910001316 Ag alloy Inorganic materials 0.000 description 1
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- YCKOAAUKSGOOJH-UHFFFAOYSA-N copper silver Chemical compound [Cu].[Ag].[Ag] YCKOAAUKSGOOJH-UHFFFAOYSA-N 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000010944 silver (metal) Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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- Conductive Materials (AREA)
Abstract
The present invention relates to a multi-fibre reinforced Cu-Ag-Cr conducting material and its preparation method. Its composition comprises AG 6%-10%, Cr 0.5%-1.5% and the rest is Cu. Its preparation method includes the following steps: placing Cu and Cr into vacuum induction furnace, melting under the condition of below 0.1 Pa, standing still at 1100-1200 deg.C to remove air, charging Ar into furnace to 40-50 KPa, adding Ag and melting, electromagnetic stirring and uniformly pouring to obtain rod casting blank with specific diameter, homogenization treatment for 4 hr, at 680-720 deg.c and respectively annealing for 1 hr. at 390-420 deg.C, for 1 hr. at 370-390 deg.C and for 1 hr. at 350-370 deg.C when its deformability eta is equal to 1.2-1.4, 1.9-2.0 and 2.6-2.8 respectively. Its strength and conductivity can be up to alloy level containing 24%-25% Ag.
Description
Technical field
The present invention relates to a kind of acid bronze alloy.
Background technology
Progress of science and technology is more and more higher to the electric conducting material performance demands.For example, the conductor coils that high-tech area medium-high magnetic field technology is used and the lead frame of large scale integrated circuit still have good electrical conductivity when requirement can be born very high loads.Under this harsh condition of work, conventional conductor material is not competent, and the conductor material that necessarily requires high strength more to have excellent conductive performance simultaneously concurrently satisfies this type of science
The development need of technical field.
The intensity of conductor material and conductivity generally are the inverse function relation, and the measure that promptly improves intensity is a cost to reduce conductivity significantly often.Therefore, making great efforts to make material to keep high conductivity (or slightly sacrificing conductivity) and while can improve intensity significantly, is the focus of developing the novel conductor material at present.
By the immiscible alloying element of adding in the Cu matrix, and, be considered to the most rising high-strength highly-conductive material at present by the composite fibre phase strengthened copper alloy that strong strain process prepares.In this class material, novel copper-silver alloy has best intensity and conductivity matching relationship, thereby is subjected to enough attention at home and abroad, and having developed than conventional material at laboratory stage at present has the more conductor wires of premium properties.Yet, still exist many problem needs further to solve.For example,, need the Ag content that adds higher in the alloy, consumed the noble metal resource largely, increased material cost significantly if will reach the matched well of high-strength high-conductivity; Form the processing technology more complicated of original position fibre composite reinforcement, operation is many and constellation is uncertain, and is wayward in the production; For reaching certain dependent variable to guarantee prestrain weight, make the blank initial cross-section long-pending bigger, increased the difficulty of deformation processing process etc.Thereby, be necessary at the more novel alloy of these problem developments, to remedy above-mentioned deficiency.
Summary of the invention
The purpose of this invention is to provide the fiber strengthened copper-Yin of complex phase-chromium electric conducting material and preparation method that a kind of Ag content is lower, preparation technology simplifies relatively, cost hangs down and still have the high-strength highly-conductive characteristic.
Complex phase fibre strengthening copper-Yin of the present invention-chromium electric conducting material, the percentage by weight of each component is as follows:
Material purity is 99.95% Ag 6%～10%
Material purity is 99.90% Cr 0.5%～1.5%
Material purity be 99.90% electrolysis Cu all the other
Dry with raw material Ag, Cu, Cr pickling and after fully cleaning, earlier Cu, Cr are placed vaccum sensitive stove, melt being lower than under the 0.1Pa atmospheric pressure, after leaving standstill degasification under 1100～1200 ℃, in stove, fill Ar to 40～50kPa, add Ag and fusing again, evenly and pour into the bar-shaped strand of special diameter after leaving standstill 2～3 minutes through electromagnetic agitation.Blank is after 680～720 ℃/4 hours homogenizing are handled, in deformation extent η=1.2～1.4, carried out respectively in 1.9～2.0 and 2.6～2.8 o'clock 390～420 ℃/1 hour, 370～390 ℃/1 hour and annealing in 350～370 ℃/1 hour.
In this alloy, Ag content is 6%～10% only, and other adds 0.5%～1.5%Cr, does not generally need hot prestrain, only need to adopt intermediate heat-treatment 3 times, promptly can be made into the wire rod that diameter is an all size such as 0.6～2.0mm through the room temperature drawing processing of certain deflection.In addition, this alloy also can laminate by cold rolling and intermediate heat-treatment.
The beneficial effect that the present invention has:
1) content of expensive elements A g is lower, can significantly reduce material cost, is beneficial to popularization;
2) molten directly cold deformation of injection material need not prior hot working predeformation cogging, and intermediate heat-treatment is reduced to 3 times by 5 times of routine, and machining process is simplified relatively;
3) under the condition that reduces noble metal consumption and simplified processing process effectively, its intensity and conductivity can reach the alloy level that contains 24%～25%Ag, and concrete reference data sees Table 1.
The relevant alloy of table 1 is in the strength degree of determining under the electric conductivity condition (MPa)
| Announcement data source | Composition (weight %) | Relative conductivity (%IACS) | |||||
| ??Ag | ??Cr | ??Cu | 60 | 70 | 75 | 80 | |
| Scientific paper (U.S.) | ??24～25 | ??- | All the other | 1350 | 1200 | 960～1000 | 800～900 |
| Scientific paper (Germany) | ??3 | ??10 | All the other | 710 | - | - | - |
| Domestic (this laboratory) | ??24 | ??- | All the other | - | - | 1050 | 750 |
| Alloy of the present invention | ??6～10 | ??0.5～1. ??5 | All the other | 1150～13 00 | 920～1050 | 850～1000 | 800～850 |
Embodiment
Embodiment 1:
The purity percentage by weight is respectively 99.95%, 99.90% and 99.90% Ag, electrolysis Cu, Cr are respectively 6%Ag, 0.5%Cr by weight percentage, all the other are the ratio batching of Cu, pickling is also fully cleaned the back oven dry, earlier electrolysis Cu and pure Cr are placed vaccum sensitive stove, melt being lower than under the 0.1Pa atmospheric pressure, after leaving standstill degasification under 1100～1200 ℃, in stove, fill Ar to 40～50kPa and add pure Ag and fusing again, evenly and poured into the bar-shaped strand of special diameter after leaving standstill in 2～3 minutes through electromagnetic agitation.Ingot mould adopts good pig mold, copper mold or the water cooled mo(u)ld of cooling condition.
Blank is handled through 720 ℃/4 hours homogenizing, and surperficial turning adopts following steps to carry out deformation processing after removing defective: seven passage cold drawings to deformation extent η=1.4 → 390 ℃/annealing → five passage cold drawings in 1 hour to η=2.0 → 370 ℃/annealing → five passage cold drawings in 1 hour to η=2.8 → 350 ℃/annealing → 20 passage cold drawings in 1 hour are to η=6.0～8.0.
Embodiment 2:
The purity percentage by weight is respectively 99.95%, 99.90% and 99.90% Ag, electrolysis Cu, Cr are respectively 10%Ag, 1.5%Cr by weight percentage, all the other are the ratio batching of Cu, pickling is also fully cleaned the back oven dry, earlier electrolysis Cu and pure Cr are placed vaccum sensitive stove, melt being lower than under the 0.1Pa atmospheric pressure, after leaving standstill degasification under 1100～1200 ℃, in stove, fill Ar to 40～50kPa and add pure Ag and fusing again, evenly and pour into the bar-shaped strand of special diameter after leaving standstill 2～3 minutes through electromagnetic agitation.Ingot mould adopts good pig mold, copper mold or the water cooled mo(u)ld of cooling condition.
Blank is handled through 700 ℃/4 hours homogenizing, and surperficial turning adopts following steps to carry out deformation processing after removing defective: seven passage cold drawings to deformation extent η=1.2 → 420 ℃/annealing → five passage cold drawings in 1 hour to η=1.9 → 390 ℃/annealing → five passage cold drawings in 1 hour to η=2.6 → 370 ℃/annealing → 20 passage cold drawings in 1 hour are to η=6.0～8.0.
Obtained the alloy wire that the present invention proposes with said method.According to the rational Match between blank green diameter and the η, can obtain the wire rod of different size.
Claims (2)
1. the fiber strengthened copper-Yin of complex phase-chromium electric conducting material is characterized in that the percentage by weight of each component is as follows:
Material purity is 99.95% Ag 6%～10%
Material purity is 99.90% Cr 0.5%～1.5%
Material purity be 99.90% electrolysis Cu all the other
2. the preparation method of the fiber strengthened copper-Yin of complex phase-chromium electric conducting material, it is characterized in that: with raw material Ag, Cu, the Cr pickling is also fully cleaned the back oven dry, earlier with Cu, Cr places vaccum sensitive stove, melt being lower than under the 0.1Pa atmospheric pressure, after leaving standstill degasification under 1100～1200 ℃, in stove, fill Ar to 40～50kPa, add Ag and fusing again, through electromagnetic agitation evenly and pour into the bar-shaped strand of special diameter after leaving standstill 2～3 minutes, blank is after 680～720 ℃/4 hours homogenizing are handled, in deformation extent η=1.2～1.4,1.9 carried out respectively in～2.0 and 2.6～2.8 o'clock 390～420 ℃/1 hour, 370～390 ℃/1 hour and annealing in 350～370 ℃/1 hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021106304A CN1172320C (en) | 2002-01-22 | 2002-01-22 | Composite fiber reinforced Cu-Mg-Cr conductor material and its prepn |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021106304A CN1172320C (en) | 2002-01-22 | 2002-01-22 | Composite fiber reinforced Cu-Mg-Cr conductor material and its prepn |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1362710A true CN1362710A (en) | 2002-08-07 |
| CN1172320C CN1172320C (en) | 2004-10-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021106304A Expired - Fee Related CN1172320C (en) | 2002-01-22 | 2002-01-22 | Composite fiber reinforced Cu-Mg-Cr conductor material and its prepn |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1172320C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1293212C (en) * | 2004-02-23 | 2007-01-03 | 西安交通大学 | Alloy of copper |
| CN100362596C (en) * | 2005-12-20 | 2008-01-16 | 郑茂盛 | High-strength high-conductivity copper alloy contact wire for rapid transit railway |
| CN100587091C (en) * | 2008-09-12 | 2010-02-03 | 邢台鑫晖铜业特种线材有限公司 | Cu-Cr-Zr alloy preparation process for contact wire |
| CN101709401B (en) * | 2009-12-11 | 2011-01-19 | 江西省科学院应用物理研究所 | Cu-Cr in-situ composite with boron, silver and rare earth elements added and preparation method thereof |
| CN105803246A (en) * | 2016-03-24 | 2016-07-27 | 东北大学 | High-strength high-electro-conductivity copper-based composite and preparation method thereof |
| CN106011517A (en) * | 2016-05-16 | 2016-10-12 | 浙江大学 | High-strength and high-conductivity copper alloy and application of alloy as material of contact line of high speed railway with speed being 400 km/h or above |
-
2002
- 2002-01-22 CN CNB021106304A patent/CN1172320C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1293212C (en) * | 2004-02-23 | 2007-01-03 | 西安交通大学 | Alloy of copper |
| CN100362596C (en) * | 2005-12-20 | 2008-01-16 | 郑茂盛 | High-strength high-conductivity copper alloy contact wire for rapid transit railway |
| CN100587091C (en) * | 2008-09-12 | 2010-02-03 | 邢台鑫晖铜业特种线材有限公司 | Cu-Cr-Zr alloy preparation process for contact wire |
| CN101709401B (en) * | 2009-12-11 | 2011-01-19 | 江西省科学院应用物理研究所 | Cu-Cr in-situ composite with boron, silver and rare earth elements added and preparation method thereof |
| CN105803246A (en) * | 2016-03-24 | 2016-07-27 | 东北大学 | High-strength high-electro-conductivity copper-based composite and preparation method thereof |
| CN105803246B (en) * | 2016-03-24 | 2017-07-25 | 东北大学 | A kind of high strength high conductivity copper base composite material and preparation method thereof |
| CN106011517A (en) * | 2016-05-16 | 2016-10-12 | 浙江大学 | High-strength and high-conductivity copper alloy and application of alloy as material of contact line of high speed railway with speed being 400 km/h or above |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1172320C (en) | 2004-10-20 |
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