CN106929712A - 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
- CN106929712A CN106929712A CN201710214340.8A CN201710214340A CN106929712A CN 106929712 A CN106929712 A CN 106929712A CN 201710214340 A CN201710214340 A CN 201710214340A CN 106929712 A CN106929712 A CN 106929712A
- Authority
- CN
- China
- Prior art keywords
- aluminium
- temperature
- alloy round
- aluminum rod
- round aluminum
- 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.)
- Granted
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, described alloy round aluminum rod includes Si, Fe, Cu, Zn, B, Ti and RE, and the various composition is by weight：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%, balance of AL and inevitable impurity, further relate to the production method of the alloy round aluminum rod.Alloy round aluminum rod tensile strength of the invention is up to more than 170MPa, 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 is greatly improved, and the sag increase of cable is not obvious, large span erecting cable is can be widely applied to, the requirement with national energy-saving environmental protection mutually agrees with.
Description
Technical field
The present invention relates to a kind of a kind of alloy round aluminum rod of intensity in alloy round aluminum rod, especially low resistance, it is further related to
Production method, belongs to aluminum alloy wire technical field of cable.
Background technology
The novel energy-conserving wire that current China promotes mainly includes high conductivity energy-conservation hard aluminum wire, and aluminium alloy core, aluminium is twisted
Line, middle this three class of intensity all aluminium alloy twisted wire.High conductivity energy-conservation hard aluminum wire and aluminum stranded wire of aluminum alloy core are identical with aluminium section
Common steel-cored aluminium strand compare, the raising of aluminum steel conductance can make wire entirety DC resistance reduction, and electric energy loss subtracts
It is few, but its tensile strength is relatively low, and cable sag is larger.Strength aluminium alloy material in middle intensity all aluminium alloy twisted wire whole use,
Compared with common steel-cored aluminium strand of total cross section is waited, because aluminum alloy materials substitute steel core, equivalent to conductive section is increased, drop
Low overall DC resistance, improves conductive capability, lightweight because its intensity is high, and has the advantages that preferable electric conductivity,
It is widely used in west economy more developed country.
With the fast development of China's power industry, many with reference to western with a varied topography, large crossing projects, ordinary steel is compared in exploitation
The substituting product that core aluminum stranded wire intensity is high, current-carrying capacity is big, there is extensive promotional value.
The content of the invention
In order to realize above-mentioned target, the element such as present invention analysis silicon, iron, copper, boron, rare earth is to aluminium conductor electric conductivity, anti-
The influence of tensile strength, rational proportion is carried out to each element, preferably improves the cast sturcture of aluminium alloy, makes the conduction of aluminium bar
Property, tensile strength reach best of breed state, it is further provided in a kind of low resistance strength alloys circle aluminium bar, concrete scheme is such as
Under：
A kind of alloy round aluminum rod of intensity in low resistance, described alloy round aluminum rod includes Si, Fe, Cu, Zn, B, Ti and RE,
The various composition is by weight：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%, balance of AL and inevitable impurity.
Ferro element adds the intensity that can improve alloy, while the influence to resistivity is smaller；Copper is added and can formed
CuAl2, plays solution strengthening effect and improves the intensity of alloy, but can rise high resistivity simultaneously；The addition of boron element can remove aluminium liquid
In vanadium, reduce influence of the v element to resistivity；This aluminium alloy rod is that continuous casting and rolling is formed, if casting blank crystal grains are excessive, rolling
During the distortion of lattice that occurs it is serious, improve the resistivity of product, and the addition of titanium elements can obvious crystal grain thinning, so as to drop
Low-resistivity；The addition of rare earth element contributes to the reduction of hydrogen in aluminium liquid, product resistivity is reduced, by the conjunction of alloying element
Reason allotment and the control of impurity element, while being improved this aluminium alloy rod tensile strength, resistivity only has on slightly
Rise.
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 smelting technology step are as follows：
（1）, add in smelting furnace more than 99.50% aluminium liquid, temperature of aluminum liquid controlled at 780-800 DEG C；
（2）, first with 75% copper agent add aluminum melt formed CuAl2 hardening constituents, secondly add 75% chalybeate, be subsequently adding aluminium boron
Harmful element vanadium in alloy removal aluminium liquid, is eventually adding rare earth alloy, recycles 30-40 minutes electromagnetic agitation time；It is determined that
Each element content meets the requirements in chemical composition；
（3）, after the aluminium solution for preparing, powder refining agent is blown into refining treatment in melt with nitrogen, refining agent consumption is
0.6-0.8kg/t, is passed through nitrogen pressure for 0.1-0.2MPa, time 20-30 minutes, 730-760 DEG C of refining temperature, so as to obtain
Obtain clarity aluminium solution higher；Refining agent is by KCl, NaCl, ice crystal, the ground flux that constitutes；
(4) the aluminium solution that, composition is qualified, temperature is qualified is stood, 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, casting rate 4-5 ton hours, aluminium titanium boron wire is added with 1.0 ms/min of speed online（AlTi5B）Refinement
Crystal grain, obtains equiax crystal strand.
Further, the emulsion pressure 0.15-0.25MPa of rolling mill practice, 50-60 DEG C of temperature；Quenching coolant-temperature gage 20-25
DEG C, pressure 0.4-0.6MPa, by 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 constituents.
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 deficiency in actual applications,
Cable tensile strength is increased substantially, its tensile strength has been reached 6101,6201 alloy designations standards, and resistance is gone up by a small margin
Rise, only 6101, the 82% of 6201 alloy designations.It has current-carrying capacity big, and pulling force is big, pulling force substance than it is big the advantages of, can increase
Span, reduces shaft tower number, or reduces shaft tower highly, reduces construction costs, moreover it is possible to preferably improve cast sturcture, make tension
Intensity is less than 29.00n Ω m, largely reduces cable installation cost up to more than 170MPa, resistivity.
Using this aluminium alloy cable, compared with steel wire aluminum stranded conductor, the cable of same cross-sectional area, current-carrying capacity is greatly improved,
The sag increase of cable is not obvious, can be widely applied to large span erecting cable, and the requirement with national energy-saving environmental protection mutually agrees with.
Specific embodiment
The technical scheme in the present embodiment is clearly and completely described below, it is clear that described embodiment is only
It is to a part of example of the invention, rather than whole examples.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not paid, belongs to the scope of protection of the 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, described various
Composition is by weight ratio（%）It is as follows：Si：0.04、Fe：0.41、Cu：0.21、Zn：0.05、B：0.015、Ti：0.011 and RE：
0.06, balance of 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 smelting technology step is as follows：
（1）, add in smelting furnace more than 99.55% aluminium liquid, temperature of aluminum liquid controlled at 786 DEG C；
（2）, first with 75% copper agent add aluminum melt formed CuAl2 hardening constituents, secondly add 75% chalybeate, be subsequently adding aluminium boron
Harmful element vanadium in alloy removal aluminium liquid, is eventually adding rare earth alloy, recycles 33 minutes electromagnetic agitation time；It is determined that chemical
Each element content meets the requirements in composition；
（3）, after the aluminium solution for preparing, powder refining agent is blown into refining treatment in melt with nitrogen, refining agent consumption is
0.62g/t, is passed through nitrogen pressure for 0.15MPa, 24 minutes time, 742 DEG C of refining temperature, so as to obtain clarity aluminium higher
Solution；Refining agent is the ground flux being made up of KCl, NaCl, ice crystal；
（4）, the aluminium solution that composition is qualified, temperature is qualified stood, 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, the ton hour of casting rate 4.4 adds aluminium titanium boron wire online with 1.0 ms/min of speed（AlTi5B）Crystal grain thinning, obtains
Equiax crystal strand.
The emulsion 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
By 4 two-roller mills, 10 y-type rolling mills are rolled into diameter 9.5mm, and recrystallized structure and CuAl2 reinforcings to upper rolling mill practice
The uniform aluminium alloy rod of phase.
Embodiment 2
Strength alloys circle aluminium bar includes Si, Fe, Cu, Zn, B, Ti and RE in the low resistance of the present embodiment, described various
Composition is by weight ratio（%）It is as follows：Si：0.05、Fe：0.28、Cu：0.27、Zn：0.04、B：0.022、Ti：0.007 and RE：
0.08, balance of 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 smelting technology step is as follows：
（1）, add in smelting furnace more than 99.57% aluminium liquid, temperature of aluminum liquid controlled at 791 DEG C；
（2）, first with 75% copper agent add aluminum melt formed CuAl2 hardening constituents, secondly add 75% chalybeate, be subsequently adding aluminium boron
Harmful element vanadium in alloy removal aluminium liquid, is eventually adding rare earth alloy, recycles 36 minutes electromagnetic agitation time；It is determined that chemical
Each element content meets the requirements in composition；
（3）, after the aluminium solution for preparing, powder refining agent is blown into refining treatment in melt with nitrogen, refining agent consumption is
0.64g/t, is passed through nitrogen pressure for 0.15MPa, 27 minutes time, 749 DEG C of refining temperature, so as to obtain clarity aluminium higher
Solution；Refining agent is the ground flux being made up of KCl, NaCl, ice crystal；
（4）, the aluminium solution that composition is qualified, temperature is qualified stood, 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, the ton hour of casting rate 4.7 adds aluminium titanium boron wire online with 1.0 ms/min of speed（AlTi5B）Crystal grain thinning, obtains
Equiax crystal strand.
The emulsion 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
By 4 two-roller mills, 10 y-type rolling mills are rolled into diameter 9.5mm, and recrystallized structure and CuAl2 reinforcings to upper rolling mill practice
The uniform aluminium alloy rod of phase.
The physical property of strength alloys bar is as follows in the low resistance of production：
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all it is of the invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.
Claims (4)
1. in a kind of low resistance intensity alloy round aluminum rod, it is characterised in that：Described alloy round aluminum rod include Si, Fe, Cu,
Zn, B, Ti and RE, the various composition is by weight：
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%, balance of AL and inevitable impurity.
2. in a kind of low resistance intensity alloy round aluminum rod production method, it is characterised in that：Including melting, casting and rolling, its
The step of middle melting, is as follows：
（1）, add in smelting furnace more than 99.50% aluminium liquid, temperature of aluminum liquid controlled at 780-800 DEG C；
（2）, first with 75% copper agent add aluminum melt formed CuAl2 hardening constituents, secondly add 75% chalybeate, be subsequently adding aluminium boron
Alloy, is eventually adding rare earth alloy, recycles 30-40 minutes electromagnetic agitation time；It is chemically defined middle each element content symbol
Close and require；
（3）, after the aluminium solution for preparing, powder refining agent is blown into refining treatment in melt with nitrogen, refining agent consumption is
0.6-0.8 ㎏/t, are passed through nitrogen pressure for 0.1-0.2MPa, time 20-30 minutes, 730-760 DEG C of refining temperature；Refining agent
It is by KCl, NaCl, ice crystal, the ground flux that constitutes；
（4）, the aluminium solution that composition is qualified, temperature is qualified stood, time of repose 25-35 minutes.
3. in a kind of low resistance according to claim 2 intensity alloy round aluminum rod production method, it is characterised in that：It is 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 crystal grain thinning is added with 1.0 ms/min of speed online, obtains equiax crystal strand.
4. in a kind of low resistance according to claim 2 intensity alloy round aluminum rod production method, it is characterised in that：Rolling
Emulsion pressure 0.15-0.25MPa, 50-60 DEG C of temperature；20-25 DEG C of coolant-temperature gage of quenching, pressure 0.4-0.6Mpa rolls more than
Technique processed is rolled into recrystallized structure and the uniform aluminium alloy rod of CuAl2 hardening constituents by 4 two-roller mills, 10 y-type rolling mills.
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 true CN106929712A (en) | 2017-07-07 |
| CN106929712B 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) |
Cited By (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 |
| CN110629076A (en) * | 2019-09-12 | 2019-12-31 | 中国科学院金属研究所 | High-conductivity aluminum alloy rod material and preparation method thereof |
| CN110706841A (en) * | 2019-10-31 | 2020-01-17 | 武汉电缆有限公司 | High-strength high-conductivity aluminum alloy wire for electrician and manufacturing method thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101956103B (en) * | 2010-10-20 | 2012-10-03 | 云南铝业股份有限公司 | High strength alloy round aluminium rod and production method thereof |
| CN102994816B (en) * | 2012-12-04 | 2014-01-08 | 安徽太平洋电缆股份有限公司 | High-strength aluminium alloy wire material and preparation method for same |
| CN105296810B (en) * | 2015-10-15 | 2017-06-27 | 远东电缆有限公司 | A kind of high-strength aluminum alloy bar continuous casting and tandem rolling production technology |
| 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
Cited By (4)
| 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 |
| CN110629076A (en) * | 2019-09-12 | 2019-12-31 | 中国科学院金属研究所 | High-conductivity aluminum alloy rod material and preparation method thereof |
| 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 |
| CN110706841A (en) * | 2019-10-31 | 2020-01-17 | 武汉电缆有限公司 | High-strength high-conductivity aluminum alloy wire for electrician and manufacturing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106929712B (en) | 2019-05-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104028961B (en) | A kind of middle strength aluminium alloy line and its production technology | |
| CN103952605B (en) | A kind of preparation method of middle strength aluminium alloy monofilament | |
| CN104946936B (en) | A kind of aerial condutor high conductivity rare earth duralumin monofilament material | |
| CN104975211B (en) | Strength aluminum alloy conductive monofilament in a kind of high conductivity heat treatment type | |
| CN102864344A (en) | Rare-earth aluminum alloy conductor for cable and manufacturing method thereof | |
| CN103451498B (en) | Intermediate strength aluminum alloy wire for overhead conductor | |
| CN101914708B (en) | Al-Fe-Cu alloy material and preparation method thereof | |
| CN106148740A (en) | The manufacture method of high strength heat resistant type aluminium alloy rod | |
| CN108559874B (en) | High-strength high-conductivity heat-resistant aluminum alloy conductor and preparation method thereof | |
| CN108300879B (en) | Preparation process of Al-Mg-Si alloy sheet for electric automobile bus conductor | |
| CN106119612A (en) | Strength aluminium alloy material and preparation method thereof in one | |
| CN104862509A (en) | Preparation technology of high-conductivity aluminium rod for overhead transmission line | |
| CN105088035B (en) | A kind of highly conductive middle intensity nonheat-treatable aluminum alloy conductor material and preparation method | |
| CN106893899A (en) | A kind of built on stilts heat resistant aluminum alloy conductor material and preparation method thereof | |
| CN104498747A (en) | Preparation method of Al-Zr-RE alloy round aluminum rod | |
| CN105950893B (en) | A kind of inexpensive 63%IACS high-conductivity hard aluminum wires and its manufacture method | |
| CN102766788A (en) | Preparation method of moderate strength Al-Mg-Si alloy rods and alloy wires through natural ageing treatment | |
| CN108315602A (en) | A kind of railway rare earth aluminium alloy cable conductor and preparation method | |
| CN106929712A (en) | The alloy round aluminum rod and its production method of intensity in a kind of low resistance | |
| 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 | |
| CN105369077A (en) | Aluminum alloy conductor material and preparation method thereof | |
| CN105499302A (en) | Production method of pure copper stranded wire | |
| CN109295346A (en) | A kind of soft aluminium alloy of high conductivity and its preparation method and application | |
| CN108823464B (en) | Copper alloy material and preparation method thereof |
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 |