CN105369077B - Aluminum alloy conductor material and preparation method thereof - Google Patents
Aluminum alloy conductor material and preparation method thereof Download PDFInfo
- Publication number
- CN105369077B CN105369077B CN201510843694.XA CN201510843694A CN105369077B CN 105369077 B CN105369077 B CN 105369077B CN 201510843694 A CN201510843694 A CN 201510843694A CN 105369077 B CN105369077 B CN 105369077B
- Authority
- CN
- China
- Prior art keywords
- alloy
- conductor material
- aluminum
- alloy conductor
- aluminium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
-
- 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
- C22C1/026—Alloys based on aluminium
-
- 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
-
- 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
- C22C1/06—Making non-ferrous alloys with the use of special agents for refining or deoxidising
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
- H01B1/023—Alloys based on aluminium
Abstract
The invention belongs to the technical field of aluminum alloy production, and particularly relates to an aluminum alloy conductor material and a preparation method thereof. The aluminum alloy conductor material is composed of, by weight, 0.06-0.1% of silicon, 0.4-0.6% of iron, 0.15-0.3% of copper, 0.01-0.03% of magnesium, 0.01-0.03% of zinc, 0.02-0.03% of boron, 0.03-0.05% of gallium, 0.08-0.13% of rare-earth metal and the balance aluminum. According to the method, by controlling the annealing temperature, the temperature decrease rate and the cold and hot rolling processes, the negative influence of the stress effect on conductor structures is reduced through the material compositions, and therefore the strength, the electric conductivity, the heat resistance, the flex fatigue resistance, the corrosion resistance and the creep resistance of aluminum alloy conductors are improved.
Description
Technical field
The invention belongs to aluminium alloy production technical field, and in particular to a kind of aluminum-alloy conductor material and preparation method thereof.
Background technology
Nowadays, with the rapid growth of Electricity Demand, requirement of the electric power energy in transmitting procedure is also increasingly increased,
The transmission line of electricity of high-quality should possess that transmission distance is remote, and transmission line capability is big, less than natural calamity ability it is strong the characteristics of, then as
The raising of demand, further proposes the functional requirement of high-quality to power transmission line from electrical conductivity, heat resistance, anti-sag characteristic.
At present, the aluminium conductor material for being manufactured with conventional aluminium, its electric conductivity and heat resistance are performed poor, and are produced
Often occur broken string phenomenon in journey, and then increased the production cost and use cost of aluminum-alloy conductor material.Using remelting aluminium
Aluminium conductor material prepared by ingot, containing impurity such as iron, silicon, copper in remelting aluminium ingot, using impurity such as iron, silicon, copper, is conducive to reality
Existing alloy strengthening, but these elements are commonly formed solid reinforcing, it is difficult to small and dispersed reinforcing is formed, aluminium alloy conductor material is in turn resulted in
The intensity of material rises and electric conductivity declines, flexibility declines, and then reduces flex endurant fatigue properties, and then causes fine aluminium system material
Material cannot bear bending stress repeatedly.
The content of the invention
The present invention is solution above-mentioned technical problem, there is provided a kind of excellent aluminium alloy conductor of electric conductivity and its technique letter
Single, safe preparation method.
It is achieved especially by below scheme：
A kind of aluminum-alloy conductor material, by weight percentage, its composition is the aluminium alloy：Silicon 0.06-0.1wt%, iron
0.4-0.6wt%, copper 0.15-0.3wt%, magnesium 0.01-0.03wt%, zinc 0.01-0.03wt%, boron 0.02-0.03wt%, gallium
0.03-0.05wt%, rare earth metal 0.08-0.13wt%, remaining is aluminium and inevitable impurity.
Further, by weight percentage, its composition is the aluminium alloy：Silicon 0.08wt%, iron 0.5wt%, copper
0.23wt%, magnesium 0.02wt%, zinc 0.02wt%, boron 0.025wt%, gallium 0.04wt%, rare earth metal 0.1wt%, remaining is
Aluminium and inevitable impurity.
Further, the rare earth metal includes one of scandium, samarium, erbium, yttrium, lanthanum, cerium or two kinds.
Further, the inevitable total impurities are 0.05-0.08wt%.
Its preparation method, comprises the following steps：
(1) technical pure aluminium ingot is taken, iron, magnesium, the intermediate alloy of silicon, by the fusing of technical pure aluminium ingot, in melt ferro-aluminum are added
Alloy, aldray, in 770-780 DEG C of insulation, after centre is completely melt, by alloy molten solution temperature 560-600 are reduced to
DEG C, then adding copper, zinc, boron, gallium, the intermediate alloy of rare earth element carries out insulation 1-2h, and refining agent is conveyed by furnace bottom with nitrogen
After refining to melt, Jing casting obtains ingot casting；
(2) ingot casting is carried out cutting milling face, the hot rolling in the case where temperature is for 480-500 DEG C, then Jing is cold-rolled to outlet material temperature
Spend for 280 DEG C, then be placed in temperature to make annealing treatment 1-3h at 330-360 DEG C, obtain aluminum-alloy conductor material.
The cooling, its speed is 5-7 DEG C/min.
The cast temperature is 710-740 DEG C.
The refining agent by mass percent be the sodium chloride of 5-15%, 5-15% potassium chloride and, the Na of 70-90%3AlF6
Composition.
Beneficial effects of the present invention
The invention enables iron content be 0.4-0.6wt%, remaining containing ferrous components with Al-Fe, Al-Fe-Si, Al-Fe-Si ,-
The form crystallization of the metallic compounds such as Mg is separated out, and the crystal or precipitate play work as the miniaturization material of crystal grain
With, while improve intensity and flex endurant fatigue properties, while so that part iron solid solution, and lift intensity.
The invention enables it is 0.06-0.1wt% that content of magnesium is 0.01-0.03wt% and silicone content, remaining containing magnesium component with
Siliceous composition mutually forms precipitate, and improve alloy strength, heat resistance.
The invention enables copper content is 0.15-0.3wt%, on the one hand causes its solid solution and aluminium alloy is strengthened, separately
On the one hand, alloy creep resistant and heat endurance are favorably improved.
The invention enables gallium content is 0.03-0.05wt%, on the one hand causes its solid solution and aluminium alloy is strengthened, separately
On the one hand, alloy heat resistance and corrosion resistance are favorably improved.
The invention enables Zn content is 0.01-0.03wt%, on the one hand causes its solid solution and aluminium alloy is strengthened, separately
On the one hand, alloy corrosion resistance and heat endurance are favorably improved.
Middle rare earth metal of the present invention can reduce the content of silicon in aluminium solid solution, and aluminium alloy is led so as to reduce iron, silicon, gallium etc.
The impact of electric rate, while improving the institutional framework of crystal in aluminum alloy materials, improves the processing characteristics and corrosion resistant of aluminium alloy
Corrosion energy.
Boron element can be conducive to the discharge of impurity, so as to reduce with the reaction of the impurity element such as Ti, V, Mn, Cr in the present invention
Impact of the impurity to aluminium alloy conductance, is conducive to improving the unfavorable development of alloy flexibility.
The inventive method improves stress to leading by control annealing temperature, rate of temperature fall and its cold and hot roll process
The adverse effect of body tissue so that the performance of aluminium alloy conductor is improved, wherein, tensile strength is about 175MPa, and conductance is about
63%IACS, heat resisting temperature is about 230 DEG C.
Specific embodiment
Technical scheme is further limited with reference to specific embodiment, but claimed
Scope is not only limited to description.
Embodiment 1
The fusing of technical pure aluminium ingot is taken, alfer, aldray are added in melt, in 770 DEG C of insulations, treat middle complete
After running down, alloy molten solution temperature is cooled to into 590 DEG C with the speed of 5 DEG C/min, is then added in copper, zinc, boron, gallium, lanthanum
Between alloy carry out insulation 1h, with nitrogen by furnace bottom convey successively 5% sodium chloride, 5% potassium chloride and, 90% Na3AlF6Composition
Refining agent refined after, temperature be 740 DEG C at cast, obtain ingot casting；Ingot casting is carried out to cut milling face, is 495 in temperature
Hot rolling at DEG C, then Jing is cold-rolled to outlet mass temperatures for 280 DEG C, then is placed in temperature to make annealing treatment 1.5h at 348 DEG C, obtains
Aluminum-alloy conductor material.
To the material composition analysis, the percentage by weight of each element is：Silicon 0.1wt%, iron 0.4wt%, copper 0.2wt%,
It is magnesium 0.02wt%, zinc 0.03wt%, boron 0.02wt%, gallium 0.05wt%, rare earth metal 0.08-0.13wt%, inevitable miscellaneous
Matter total amount is 0.08wt%, and remaining is aluminium.
Embodiment 2
The fusing of technical pure aluminium ingot is taken, alfer, aldray are added in melt, in 772 DEG C of insulations, treat middle complete
After running down, alloy molten solution temperature is cooled to into 570 DEG C with the speed of 7 DEG C/min, then add copper, zinc, boron, gallium, with scandium, samarium
Intermediate alloy for mischmetal carries out insulation 1h, with nitrogen by furnace bottom convey successively 8% sodium chloride, 5% potassium chloride and,
87% Na3AlF6After the refining agent of composition is refined, cast in the case where temperature is for 735 DEG C, obtain ingot casting；Ingot casting is cut
Milling face, the hot rolling in the case where temperature is for 480 DEG C, then Jing is cold-rolled to outlet mass temperatures for 280 DEG C, then is placed in temperature at 330 DEG C
Annealing 2.5h, obtains aluminum-alloy conductor material.
To the material composition analysis, the percentage by weight of each element is：Silicon 0.07wt%, iron 0.6wt%, copper
0.26wt%, magnesium 0.01wt%, zinc 0.01wt%, boron 0.028wt%, gallium 0.05wt%, rare earth metal 0.08-0.13wt%,
Inevitable total impurities are 0.06wt%, and remaining is aluminium.
Embodiment 3
The fusing of technical pure aluminium ingot is taken, alfer, aldray are added in melt, in 780 DEG C of insulations, treat middle complete
After running down, alloy molten solution temperature is cooled to into 600 DEG C with the speed of 5 DEG C/min, then add copper, zinc, boron, gallium, with erbium, lanthanum
Intermediate alloy for mischmetal carries out insulation 2h, with nitrogen by furnace bottom convey successively 10% sodium chloride, 10% potassium chloride and,
80% Na3AlF6After the refining agent of composition is refined, cast in the case where temperature is for 725 DEG C, obtain ingot casting；Ingot casting is cut
Milling face, the hot rolling in the case where temperature is for 486 DEG C, then Jing is cold-rolled to outlet mass temperatures for 280 DEG C, then is placed in temperature at 355 DEG C
Annealing 2h, obtains aluminum-alloy conductor material.
To the material composition analysis, the percentage by weight of each element is：Silicon 0.08wt%, iron 0.5wt%, copper
0.23wt%, magnesium 0.02wt%, zinc 0.02wt%, boron 0.025wt%, gallium 0.04wt%, rare earth metal 0.1wt%, can not keep away
It is 0.07wt% to exempt from total impurities, and remaining is aluminium.
Embodiment 4
The fusing of technical pure aluminium ingot is taken, alfer, aldray are added in melt, in 776 DEG C of insulations, treat centre
After being completely melt, alloy molten solution temperature is cooled to into 580 DEG C with the speed of 6 DEG C/min, then adds copper, zinc, boron, gallium, yttrium
Intermediate alloy carries out insulation 1.5h, with nitrogen by furnace bottom convey successively 15% sodium chloride, 5% potassium chloride and, 80%
Na3AlF6After the refining agent of composition is refined, cast in the case where temperature is for 710 DEG C, obtain ingot casting；Ingot casting is carried out to cut milling face,
Temperature is hot rolling at 500 DEG C, and then Jing is cold-rolled to outlet mass temperatures for 280 DEG C, then is placed in temperature to make annealing treatment at 360 DEG C
3h, obtains aluminum-alloy conductor material.
To the material composition analysis, the percentage by weight of each element is：Silicon 0.06wt%, iron 0.58wt%, copper
0.3wt%, magnesium 0.01wt%, zinc 0.01wt%, boron 0.02wt%, gallium 0.03wt%, rare earth metal 0.08-0.13wt%, no
Total impurities can be avoided to be 0.05wt%, remaining is aluminium.
Embodiment 5
The fusing of technical pure aluminium ingot is taken, alfer, aldray are added in melt, in 778 DEG C of insulations, treat middle complete
After running down, alloy molten solution temperature is cooled to into 560 DEG C with the speed of 7 DEG C/min, then add copper, zinc, boron, gallium, with samarium, cerium
Intermediate alloy for mischmetal carries out insulation 1.8h, with nitrogen by furnace bottom convey successively 5% sodium chloride, 10% potassium chloride and
85% Na3AlF6After the refining agent of composition is refined, cast in the case where temperature is for 724 DEG C, obtain ingot casting；Ingot casting is cut
Milling face, the hot rolling in the case where temperature is for 489 DEG C, then Jing is cold-rolled to outlet mass temperatures for 280 DEG C, then is placed in temperature at 340 DEG C
Annealing 1h, obtains aluminum-alloy conductor material.
To the material composition analysis, the percentage by weight of each element is：Silicon 0.08wt%, iron 0.49wt%, copper
0.18wt%, magnesium 0.03wt%, zinc 0.03wt%, boron 0.021wt%, gallium 0.04wt%, rare earth metal 0.08-0.13wt%,
Inevitable total impurities are 0.07wt%, and remaining is aluminium.
Test example 1
Aluminum-alloy conductor material prepared by embodiment 1-5 is carried out into tensile tests at room, according to GB GB/T228-2002
Standard tensile specimen is made, is 0.5mm/min in draw speed, stretched on Instron 30KN tensile testing machines, measure length
For 50mm, tensile strength, elongation percentage are determined, its result is as shown in table 1：
Table 1
| Sample | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 |
| Tensile strength (MPa) | 168 | 178 | 181 | 175 | 171 |
| Elongation percentage (%) | 17 | 19 | 21 | 18 | 17 |
Test example 2
Aluminum-alloy conductor material prepared by embodiment 1-5 is carried out into conductance experiment, according to GB GB/T12966-2008
《Aluminium alloy electric conductance I stay method of testing》Detected, its result is as shown in table 2：
Table 2
| Sample | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 |
| Conductance (%IACS) | 60 | 67 | 64 | 63 | 62 |
Test example 3
Aluminum-alloy conductor material prepared by embodiment 1-5 is carried out into heat resistance test, it is little with 230 DEG C of insulations 200 respectively
When, 250 DEG C insulation 2 hours sample tensile strength be not incubated sample tensile strength ratio, its result such as institute of table 3
Show：
Table 3
| Sample | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 |
| 230 DEG C of heat resistances % | 95.1 | 94.6 | 95.5 | 94.1 | 94.7 |
| 250 DEG C of heat resistances % | 94.8 | 95.0 | 94.9 | 93.2 | 93.9 |
Claims (7)
1. a kind of aluminum-alloy conductor material, it is characterised in that by weight percentage, its composition is the aluminium alloy：Silicon 0.06-
0.1wt%, iron 0.4-0.6wt%, copper 0.15-0.3wt%, magnesium 0.01-0.03wt%, zinc 0.01-0.03wt%, boron 0.02-
0.03wt%, gallium 0.03-0.05wt%, rare earth metal 0.08-0.13wt%, remaining is aluminium and inevitable impurity；
Its preparation method, comprises the following steps：
(1) take technical pure aluminium ingot, iron, magnesium, the intermediate alloy of silicon, by the fusing of technical pure aluminium ingot, add in melt alfer,
Aldray, in 770-780 DEG C of insulation, after centre is completely melt, is reduced to 560-600 DEG C, so by alloy molten solution temperature
Adding copper, zinc, boron, gallium, the intermediate alloy of rare earth element afterwards carries out insulation 1-2h, and refining agent is conveyed to melt by furnace bottom with nitrogen
After being refined, Jing casting obtains ingot casting；
(2) ingot casting is carried out cutting milling face, is hot rolling at 480-500 DEG C in temperature, then Jing is cold-rolled to outlet mass temperatures and is
280 DEG C, then temperature is placed in make annealing treatment 1-3h at 330-360 DEG C, obtain aluminum-alloy conductor material.
2. aluminum-alloy conductor material as claimed in claim 1, it is characterised in that the aluminium alloy by weight percentage, its into
It is divided into：Silicon 0.08wt%, iron 0.5wt%, copper 0.23wt%, magnesium 0.02wt%, zinc 0.02wt%, boron 0.025wt%, gallium
0.04wt%, rare earth metal 0.1wt%, remaining is aluminium and inevitable impurity.
3. aluminum-alloy conductor material as claimed in claim 1 or 2, it is characterised in that the rare earth metal include scandium, samarium, erbium,
One of yttrium, lanthanum, cerium or two kinds.
4. aluminum-alloy conductor material as claimed in claim 1 or 2, it is characterised in that the inevitable total impurities are
0.05-0.08wt%.
5. aluminum-alloy conductor material as claimed in claim 1, it is characterised in that described that alloy molten solution temperature is reduced to into 560-
600 DEG C, the rate of temperature fall in the stage is 5-7 DEG C/min.
6. aluminum-alloy conductor material as claimed in claim 1, it is characterised in that the cast temperature is 710-740 DEG C.
7. aluminum-alloy conductor material as claimed in claim 1, it is characterised in that the refining agent is 5- by mass percent
15% sodium chloride, 5-15% potassium chloride and, the Na of 70-90%3AlF6Composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510843694.XA CN105369077B (en) | 2015-11-27 | 2015-11-27 | Aluminum alloy conductor material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510843694.XA CN105369077B (en) | 2015-11-27 | 2015-11-27 | Aluminum alloy conductor material and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105369077A CN105369077A (en) | 2016-03-02 |
| CN105369077B true CN105369077B (en) | 2017-05-10 |
Family
ID=55371701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510843694.XA Active CN105369077B (en) | 2015-11-27 | 2015-11-27 | Aluminum alloy conductor material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105369077B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019112997A1 (en) * | 2017-12-07 | 2019-06-13 | NanoAL LLC | 8000-series aluminum alloy |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10633725B2 (en) | 2015-10-14 | 2020-04-28 | NaneAL LLC | Aluminum-iron-zirconium alloys |
| CN106636780B (en) * | 2017-01-06 | 2018-04-03 | 吴振江 | A kind of ultrafine aluminum alloy conductor and preparation method thereof |
| CN106893899A (en) * | 2017-03-27 | 2017-06-27 | 河北欣意电缆有限公司 | A kind of built on stilts heat resistant aluminum alloy conductor material and preparation method thereof |
| CN109234580A (en) * | 2018-08-03 | 2019-01-18 | 特变电工山东鲁能泰山电缆有限公司 | A kind of high-strength conductive rate aluminium bar material and production method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4832370B2 (en) * | 2002-05-07 | 2011-12-07 | 日本製箔株式会社 | Aluminum alloy foil and method for producing the same |
| CN103177786A (en) * | 2011-12-22 | 2013-06-26 | 加铝（天津）铝合金产品有限公司 | Aluminum alloy material for cables |
| CN102978471B (en) * | 2012-11-09 | 2015-08-19 | 安徽欣意电缆有限公司 | Al-Fe-Ga-RE aluminium alloy and preparation method thereof and power cable |
| CN105088035B (en) * | 2015-07-30 | 2017-08-04 | 中南大学 | A kind of highly conductive middle intensity nonheat-treatable aluminum alloy conductor material and preparation method |
-
2015
- 2015-11-27 CN CN201510843694.XA patent/CN105369077B/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019112997A1 (en) * | 2017-12-07 | 2019-06-13 | NanoAL LLC | 8000-series aluminum alloy |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105369077A (en) | 2016-03-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105369077B (en) | Aluminum alloy conductor material and preparation method thereof | |
| WO2021008428A1 (en) | Ultrahigh-strength aluminum-lithium alloy and preparation method therefor | |
| CN101935786B (en) | Stabilizing processing method of 5052 aluminium alloy | |
| CN108330419B (en) | Thermal deformation and stabilization process of Al-Mg-Mn-Er-Zr alloy plate | |
| CN105714148B (en) | A kind of high-strength adonic of spinodal decomposition type | |
| CN106350716A (en) | High-strength exterior-part aluminum alloy material and manufacturing method thereof | |
| CN107190186A (en) | A kind of novel ultra-high-strength/tenacity aluminum alloy and preparation method thereof | |
| CN101880799A (en) | Al-Fe-Zn-Mg rare earth alloy wire and preparation method thereof | |
| CN101921938A (en) | Aluminum alloy 5052 having high corrosion resistance and manufacturing method thereof | |
| CN105779826B (en) | A kind of preparation method of aluminium alloy rod and preparation method thereof and aluminium alloy wire | |
| CN104073685B (en) | A kind of high-strength creep resistant dilute copper alloy material and application thereof | |
| CN102808105A (en) | Method for preparing shape memory copper alloy | |
| CN101914708A (en) | Al-Fe-Cu alloy material and preparation method thereof | |
| CN107829000A (en) | A kind of die-cast aluminum alloy material and preparation method thereof | |
| CN108048716A (en) | High-strength creep resistant Al-Cu containing scandium line aluminium alloys and casting and heat treatment process | |
| CN103866167A (en) | Aluminum alloy and alloy sheet thereof as well as preparation method of alloy sheet | |
| CN103255319A (en) | Al-Yb-Zr heatproof aluminium alloy and its heat treatment technology | |
| CN108315581B (en) | High-strength high-softening-temperature low beryllium copper alloy and preparation method thereof | |
| CN112030032A (en) | Cu-Cr-Ti-Zr alloy and copper strip preparation method | |
| CN109797328B (en) | Medium-high strength damage-resistant aluminum-lithium alloy material and preparation method and application thereof | |
| CN107419141B (en) | A kind of Al-Si-Fe-RE-B alloy conductor material and preparation method | |
| CN109487116A (en) | High-strength CTB alloy band and preparation method suitable for electrically conductive elastic component | |
| CN106710663B (en) | A kind of high conductivity rare earth aluminium alloy line and preparation method thereof | |
| CN107230508B (en) | A kind of graphene rare earth aluminium alloy height leads the preparation method of material cable | |
| CN108251731A (en) | A kind of magnesium-rare earth and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |