CN106929712B - The alloy round aluminum rod and its production method of intensity in a kind of low resistance - Google Patents
The alloy round aluminum rod and its production method of intensity in a kind of low resistance Download PDFInfo
- Publication number
- CN106929712B CN106929712B CN201710214340.8A CN201710214340A CN106929712B CN 106929712 B CN106929712 B CN 106929712B CN 201710214340 A CN201710214340 A CN 201710214340A CN 106929712 B CN106929712 B CN 106929712B
- Authority
- CN
- China
- Prior art keywords
- alloy
- alloy round
- temperature
- aluminum rod
- intensity
- 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
-
- 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
- C22C21/12—Alloys based on aluminium with copper as the next major constituent
- C22C21/14—Alloys based on aluminium with copper as the next major constituent with silicon
-
- 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
- C22C21/12—Alloys based on aluminium with copper as the next major constituent
- C22C21/18—Alloys based on aluminium with copper as the next major constituent with zinc
-
- C—CHEMISTRY; METALLURGY
- 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
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
-
- C—CHEMISTRY; METALLURGY
- 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
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
- C22F1/057—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with copper as the next major constituent
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Conductive Materials (AREA)
Abstract
The present invention relates to a kind of alloy round aluminum rod of intensity in low resistance, the alloy round aluminum rod includes Si, Fe, Cu, Zn, B, Ti and RE, the various composition is by weight are as follows: Si:0.03-0.10%, Fe:0.20-0.70%, Cu:0.10-0.28%, Zn:0.015-0.06%, B:0.005-0.020%, Ti:0.001-0.02%, RE:0.05-0.2%, surplus is AL and inevitable impurity, further relates to the production method of the alloy round aluminum rod.Alloy round aluminum rod tensile strength of the invention is up to 170MPa or more, resistivity is less than 29.00n Ω m, largely reduce cable installation cost, compared with steel wire aluminum stranded conductor, the cable of same cross-sectional area, current-carrying capacity are greatly improved, and the arc sag of cable increases unobvious, it can be widely applied to large span erecting cable, the requirement with national energy-saving environmental protection mutually agrees with.
Description
Technical field
The present invention relates to a kind of alloy round aluminum rod, the alloy round aluminum rod of intensity, further relates to it in especially a kind of low resistance
Production method belongs to aluminum alloy wire technical field of cable.
Background technique
The novel energy-conserving conducting wire that China promotes at present mainly includes high conductivity energy conservation hard aluminum wire, and aluminium alloy core, aluminium twists
Line, middle intensity all aluminium alloy twisted wire are these three types of.
High conductivity energy conservation hard aluminum wire and aluminum stranded wire of aluminum alloy core compared with the identical common steel-cored aluminium strand in aluminium section,
The raising of aluminum steel conductivity can make the reduction of conducting wire entirety DC resistance, and electric energy loss is reduced, but its tensile strength is lower, electricity
Cable arc sag is larger.
Strength aluminium alloy material in middle intensity all aluminium alloy twisted wire whole use, the common steel-cored aluminium strand with equal total cross sections
It compares, since aluminum alloy materials substitute steel core, is equivalent to and increases conductive section, reduce whole DC resistance, improve and lead
Electric energy power, it is light-weight due to its intensity height, and have the advantages that preferable electric conductivity, it is wide in west economy more developed country
General use.
With the fast development of China's power industry, in conjunction with it is western it is with a varied topography, large crossing projects are more, ordinary steel is compared in exploitation
The alternative product that core aluminum stranded wire intensity is high, current-carrying capacity is big, there is extensive promotional value.
Summary of the invention
In order to realize above-mentioned target, the present invention analyzes the elements such as silicon, iron, copper, boron, rare earth to aluminium conductor electric conductivity, anti-
The influence of tensile strength carries out rational proportion to each element, preferably improves the cast sturcture of aluminium alloy, make the conduction of aluminium bar
Property, tensile strength reach optimal combination state, it is further provided strength alloys circle aluminium bar in a kind of low resistance, concrete scheme is such as
Under:
The alloy round aluminum rod of intensity in a kind of low resistance, the alloy round aluminum rod include Si, Fe, Cu, Zn, B, Ti and
RE, the various composition is by weight are as follows: Si:0.03-0.10%, Fe:0.20-0.70%, Cu:0.10-0.28%, Zn:
0.015-0.06%, B:0.005-0.020%, Ti:0.001-0.02%, RE:0.05-0.2%, surplus is for AL and unavoidably
Impurity.
The intensity that alloy can be improved is added in ferro element, while the influence to resistivity is smaller；Copper addition can be formed
CuAl2 plays solution strengthening effect and improves the intensity of alloy, but can increase resistivity simultaneously；The addition of boron element can remove molten aluminum
In vanadium, reduce influence of the vanadium to resistivity；This aluminium alloy rod is that continuous casting and rolling forms, if casting blank crystal grains are excessive, rolling
The distortion of lattice occurred in the process is serious, improves the resistivity of product, and the addition of titanium elements can obviously refine crystal grain, to drop
Low-resistivity；The addition of rare earth element facilitates the reduction of hydrogen in molten aluminum, reduces product resistivity, passes through the conjunction of alloying element
The control of reason allotment and impurity element, while this aluminium alloy rod tensile strength can be made to be improved, resistivity only has on slightly
It rises.
The alloy round aluminum rod production method of intensity in a kind of low resistance of the present invention, including smelting technology, teemer
Skill and rolling mill practice, wherein steps are as follows for smelting technology:
(1), 99.50% or more molten aluminum is added in smelting furnace, temperature of aluminum liquid is controlled at 780-800 DEG C；
(2), first with 75% copper agent be added aluminum melt formed CuAl2 hardening constituent, secondly be added 75% chalybeate, then plus
Enter the harmful element vanadium in aluminum-boron alloy removal molten aluminum, is eventually adding rare earth alloy, recycles electromagnetic agitation time 30-40 points
Clock；Middle each element content is chemically defined to meet the requirements；
(3), after prepared aluminium solution, powder refining agent is blown into refining treatment in melt, refining agent dosage with nitrogen
For 0.6-0.8kg/t, being passed through nitrogen pressure is 0.1-0.2MPa, time 20-30 minute, 730-760 DEG C of refining temperature, to obtain
Obtain the higher aluminium solution of clarity；Refining agent is by KCl, NaCl, ice crystal, the ground flux formed；
(4), ingredient is qualified, aluminium solution of temperature qualification is stood, and time of repose 25-35 minutes.
Further, the cast temperature of the casting process is 700-710 DEG C, casting machine cooling water pressure 0.2-0.25MPa,
25-35 DEG C of temperature, 4-5 ton/hours of casting rate, aluminium titanium boron wire (AlTi5B) refinement is added online with 1.0 ms/min of speed
Crystal grain obtains equiax crystal slab.
Further, the lotion pressure 0.15-0.25MPa of rolling mill practice, 50-60 DEG C of temperature；Quench coolant-temperature gage 20-25
DEG C, pressure 0.4-0.6MPa, by the above rolling mill practice by 4 two-roller mills, 10 y-type rolling mills are rolled into diameter 9.5mm, and
Recrystallized structure and the uniform aluminium alloy rod of CuAl2 hardening constituent.
Advantages of the present invention is as follows:
The present invention solves traditional high conductivity energy conservation hard aluminum wire and aluminum stranded wire of aluminum alloy core in practical applications not
Foot, is increasing substantially cable tensile strength, its tensile strength is made to have reached 6101,6201 alloy designations standards, and resistance is small
Amplitude rise, only 6101,6201 alloy designations 82%.It is big with current-carrying capacity, and pulling force is big, and pulling force substance is more excellent than big etc.
Point can increase span, reduce shaft tower number, or reduce shaft tower height, reduce project cost, moreover it is possible to preferably improve casting group
It knits, makes tensile strength up to 170MPa or more, resistivity is less than 29.00n Ω m, largely reduces cable installation cost.
Using this aluminium alloy cable, compared with steel wire aluminum stranded conductor, the cable of same cross-sectional area, current-carrying capacity obtains biggish mention
The arc sag increase of height, cable is unobvious, can be widely applied to large span erecting cable, the requirement phase contract with national energy-saving environmental protection
It closes.
Specific embodiment
The technical solution in the present embodiment is clearly and completely described below, it is clear that described embodiment is only
It is rather than whole example to a part of example of the present invention.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained under that premise of not paying creative labor, shall fall within the protection scope of the present invention.
Embodiment 1
Strength alloys circle aluminium bar includes Si, Fe, Cu, Zn, B, Ti and RE in the low resistance of the present embodiment, it is described it is various at
(%) is as follows point by weight ratio: Si:0.04, Fe:0.41, Cu:0.21, Zn:0.05, B:0.015, Ti:0.011 and RE:
0.06, surplus is AL and inevitable impurity.
The alloy round aluminum rod production method of intensity in the low resistance of the present embodiment, including smelting technology, casting process and roll
Technique processed, wherein steps are as follows for smelting technology:
(1), 99.55% or more molten aluminum is added in smelting furnace, temperature of aluminum liquid is controlled at 786 DEG C；
(2), first with 75% copper agent be added aluminum melt formed CuAl2 hardening constituent, secondly be added 75% chalybeate, then plus
Enter the harmful element vanadium in aluminum-boron alloy removal molten aluminum, is eventually adding rare earth alloy, recycles the electromagnetic agitation time 33 minutes；Really
Determine each element content in chemical component to meet the requirements；
(3), after prepared aluminium solution, powder refining agent is blown into refining treatment in melt, refining agent dosage with nitrogen
For 0.62g/t, being passed through nitrogen pressure is 0.15MPa, the time 24 minutes, 742 DEG C of refining temperature, and so that it is higher to obtain clarity
Aluminium solution；Refining agent is the ground flux being made of KCl, NaCl, ice crystal；
(4), ingredient is qualified, aluminium solution of temperature qualification is stood, and time of repose 32 minutes.
The cast temperature of the casting process is 700-707 DEG C, casting machine cooling water pressure 0.2-0.25MPa, temperature 25-27
DEG C, 4.4 ton/hours of casting rate, aluminium titanium boron wire (AlTi5B) refinement crystal grain is added online with 1.0 ms/min of speed, is obtained
Equiax crystal slab.
The lotion pressure 0.19MPa of rolling mill practice, 50-58 DEG C of temperature；Quenching 24 DEG C of coolant-temperature gage, pressure 0.48MPa, by with
Upper rolling mill practice is by 4 two-roller mills, and 10 y-type rolling mills are rolled into diameter 9.5mm, and recrystallized structure and CuAl2 strengthen
Mutually uniform aluminium alloy rod.
Embodiment 2
Strength alloys circle aluminium bar includes Si, Fe, Cu, Zn, B, Ti and RE in the low resistance of the present embodiment, it is described it is various at
(%) is as follows point by weight ratio: Si:0.05, Fe:0.28, Cu:0.27, Zn:0.04, B:0.022, Ti:0.007 and RE:
0.08, surplus is AL and inevitable impurity.
The alloy round aluminum rod production method of intensity in the low resistance of the present embodiment, including smelting technology, casting process and roll
Technique processed, wherein steps are as follows for smelting technology:
(1), 99.57% or more molten aluminum is added in smelting furnace, temperature of aluminum liquid is controlled at 791 DEG C；
(2), first with 75% copper agent be added aluminum melt formed CuAl2 hardening constituent, secondly be added 75% chalybeate, then plus
Enter the harmful element vanadium in aluminum-boron alloy removal molten aluminum, is eventually adding rare earth alloy, recycles the electromagnetic agitation time 36 minutes；Really
Determine each element content in chemical component to meet the requirements；
(3), after prepared aluminium solution, powder refining agent is blown into refining treatment in melt, refining agent dosage with nitrogen
For 0.64g/t, being passed through nitrogen pressure is 0.15MPa, the time 27 minutes, 749 DEG C of refining temperature, and so that it is higher to obtain clarity
Aluminium solution；Refining agent is the ground flux being made of KCl, NaCl, ice crystal；
(4), ingredient is qualified, aluminium solution of temperature qualification is stood, and time of repose 35 minutes.
The cast temperature of the casting process is 700-707 DEG C, casting machine cooling water pressure 0.2-0.25MPa, temperature 26-27
DEG C, 4.7 ton/hours of casting rate are added aluminium titanium boron wire (AlTi5B) refinement crystal grain with 1.0 ms/min of speed online, are obtained
Equiax crystal slab.
The lotion pressure 0.19MPa of rolling mill practice, 53-57 DEG C of temperature；Quenching 23 DEG C of coolant-temperature gage, pressure 0.46MPa, by with
Upper rolling mill practice is by 4 two-roller mills, and 10 y-type rolling mills are rolled into diameter 9.5mm, and recrystallized structure and CuAl2 strengthen
Mutually uniform aluminium alloy rod.
The physical property of strength alloys bar is as follows in the low resistance of production:
| Production volume number | Tensile strength (MPa) | Elongation (%) | Resistivity n Ω .m | |
| Example 1 | 85 | 173-221 | 5 | 28.83~28.92 |
| Example 2 | 67 | 175-229 | 5 | 28.75~28.88 |
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (4)
1. the alloy round aluminum rod of intensity in a kind of low resistance, it is characterised in that: the alloy round aluminum rod include Si, Fe, Cu,
Zn, B, Ti and RE, the various composition is by weight are as follows:
Si:0.03-0.10%, Fe:0.20-0.70%, Cu:0.10-0.28%, Zn:0.015-0.06%,
B:0.005-0.020%, Ti:0.001-0.02%, RE:0.05-0.2%, surplus are Al and inevitable impurity；It is described
Alloy round aluminum rod tensile strength is 170MPa or more, and resistivity is less than 29.00n Ω m.
2. the alloy round aluminum rod production method of intensity in a kind of low resistance described in claim 1, it is characterised in that: including molten
Refining, casting and rolling, wherein the step of melting is as follows:
(1), 99.50% or more molten aluminum is added in smelting furnace, temperature of aluminum liquid is controlled at 780-800 DEG C；
(2), aluminum melt is added with 75% copper agent first and forms CuAl2Secondly 75% chalybeate is added in hardening constituent, aluminium boron is then added
Alloy is eventually adding rare earth alloy, recycles the electromagnetic agitation time 30-40 minutes；It is chemically defined middle each element content symbol
It closes and requires；
(3), after prepared aluminum melt, powder refining agent is blown into refining treatment in melt with nitrogen, refining agent dosage is
0.6-0.8 ㎏/t, be passed through nitrogen pressure be 0.1-0.2MPa, time 20-30 minute, 730-760 DEG C of refining temperature；Refining agent
For the ground flux being made of KCl, NaCl and ice crystal；
(4), by ingredient, qualified, temperature qualification aluminum melt is stood, and time of repose 25-35 minutes.
3. the alloy round aluminum rod production method of intensity in a kind of low resistance according to claim 2, it is characterised in that: described
The cast temperature of casting is 700-710 DEG C, casting machine cooling water pressure 0.2-0.25MPa, 25-35 DEG C of temperature, casting rate 4-5
Ton/hour, aluminium titanium boron wire refinement crystal grain is added online with 1.0 ms/min of speed, obtains equiax crystal slab.
4. the alloy round aluminum rod production method of intensity in a kind of low resistance according to claim 2, it is characterised in that: rolling
Lotion pressure 0.15-0.25MPa, 50-60 DEG C of temperature；20-25 DEG C of coolant-temperature gage, pressure 0.4-0.6MPa of quenching, by rolling above
Technique processed is rolled into recrystallized structure and CuAl by 4 two-roller mills, 10 y-type rolling mills2The uniform aluminium alloy rod of hardening constituent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710214340.8A CN106929712B (en) | 2017-04-01 | 2017-04-01 | The alloy round aluminum rod and its production method of intensity in a kind of low resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710214340.8A CN106929712B (en) | 2017-04-01 | 2017-04-01 | The alloy round aluminum rod and its production method of intensity in a kind of low resistance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106929712A CN106929712A (en) | 2017-07-07 |
| CN106929712B true CN106929712B (en) | 2019-05-03 |
Family
ID=59425495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710214340.8A Active CN106929712B (en) | 2017-04-01 | 2017-04-01 | The alloy round aluminum rod and its production method of intensity in a kind of low resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106929712B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109402457A (en) * | 2018-12-11 | 2019-03-01 | 新疆众和股份有限公司 | A kind of aluminium alloy rod and preparation method thereof for copper clad aluminum material |
| CN110629076B (en) * | 2019-09-12 | 2021-05-18 | 中国科学院金属研究所 | High-conductivity aluminum alloy rod material and preparation method thereof |
| CN110706841B (en) * | 2019-10-31 | 2021-05-04 | 武汉电缆有限公司 | High-strength high-conductivity aluminum alloy wire for electrician and manufacturing method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101956103A (en) * | 2010-10-20 | 2011-01-26 | 云南铝业股份有限公司 | High strength alloy round aluminium rod and production method thereof |
| CN102994816A (en) * | 2012-12-04 | 2013-03-27 | 安徽太平洋电缆股份有限公司 | High-strength aluminium alloy wire material and preparation method for same |
| CN105296810A (en) * | 2015-10-15 | 2016-02-03 | 远东电缆有限公司 | Continuous casting and continuous rolling production process of high-strength aluminum alloy rod |
| CN106435286A (en) * | 2016-10-17 | 2017-02-22 | 山东创辉新材料科技有限公司 | Manufacturing method for extrusion electrician round aluminum rod |
-
2017
- 2017-04-01 CN CN201710214340.8A patent/CN106929712B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101956103A (en) * | 2010-10-20 | 2011-01-26 | 云南铝业股份有限公司 | High strength alloy round aluminium rod and production method thereof |
| CN102994816A (en) * | 2012-12-04 | 2013-03-27 | 安徽太平洋电缆股份有限公司 | High-strength aluminium alloy wire material and preparation method for same |
| CN105296810A (en) * | 2015-10-15 | 2016-02-03 | 远东电缆有限公司 | Continuous casting and continuous rolling production process of high-strength aluminum alloy rod |
| CN106435286A (en) * | 2016-10-17 | 2017-02-22 | 山东创辉新材料科技有限公司 | Manufacturing method for extrusion electrician round aluminum rod |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106929712A (en) | 2017-07-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104028961B (en) | A kind of middle strength aluminium alloy line and its production technology | |
| CN104975211B (en) | Strength aluminum alloy conductive monofilament in a kind of high conductivity heat treatment type | |
| CN102703770B (en) | Aluminum iron copper magnesium rare earth alloy material for electric wire and cable and preparation method thereof | |
| CN105543540A (en) | Copper chromium zirconium alloy and preparing method thereof | |
| CN102864344A (en) | Rare-earth aluminum alloy conductor for cable and manufacturing method thereof | |
| CN101834012B (en) | High-conductivity hard aluminum wire and manufacture method thereof | |
| CN104946936A (en) | High-conductivity rare earth duralumin monofilament material for overhead conductors | |
| CN105088010B (en) | A kind of high-strength highly-conductive rare earth copper zirconium alloy and preparation method thereof | |
| CN106929712B (en) | The alloy round aluminum rod and its production method of intensity in a kind of low resistance | |
| CN105088035B (en) | A kind of highly conductive middle intensity nonheat-treatable aluminum alloy conductor material and preparation method | |
| CN102758107A (en) | Heat-resistant aluminum alloy conductor with high strength and high conductivity and preparation method thereof | |
| CN106119612A (en) | Strength aluminium alloy material and preparation method thereof in one | |
| CN104498747A (en) | Preparation method of Al-Zr-RE alloy round aluminum rod | |
| CN102851527A (en) | Copper-silver-magnesium alloy contact wire and preparation method thereof | |
| CN106834820A (en) | Strong height leads aluminium alloy single line and preparation method thereof in one kind | |
| CN104911408B (en) | A kind of hard aluminum wire monofilament and preparation method thereof | |
| CN104328308A (en) | Copper alloy used for wire and preparation method of copper alloy | |
| CN103451480A (en) | Aluminum alloy round bar and production method thereof | |
| CN105499302A (en) | Production method of pure copper stranded wire | |
| CN106555073B (en) | A kind of high-strength highly-conductive rare earth copper magnesium alloy contact wire and preparation method thereof | |
| CN105112718A (en) | Copper-rare earth alloy | |
| CN104451243A (en) | Conductive material for high-speed rail traction motor and production method of conductive material | |
| CN106623478B (en) | A kind of manufacturing method of highly conductive high-strength aluminum alloy conducting wire used for intelligent electric network | |
| CN105112721A (en) | Copper-rare earth alloy material | |
| CN105441736A (en) | Composite aluminum-alloy conductor special used for ultrahigh pressure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |