CN101032929A - Magnesium and copper alloy carrier cable for electrization railway burden transporting - Google Patents
Magnesium and copper alloy carrier cable for electrization railway burden transporting Download PDFInfo
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- CN101032929A CN101032929A CN 200710010836 CN200710010836A CN101032929A CN 101032929 A CN101032929 A CN 101032929A CN 200710010836 CN200710010836 CN 200710010836 CN 200710010836 A CN200710010836 A CN 200710010836A CN 101032929 A CN101032929 A CN 101032929A
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Abstract
The present invention belongs to the field of alloy material, and is especially Cu-Mg alloy material for bearing cable in the heavy load transportation of electrified railway. The Cu-Mg alloy contains Mg in 0.1-0.3 wt%, total impurity content less than 0.3 wt% and Cu for the rest. It has resistivity not higher than 0.02150 ohm.sq mm/m, and is especially suitable for use in the heavy load transportation of electrified railway. The Cu-Mg alloy twisted wire possesses alloy reinforcement and machining reinforcement, and has high mechanical strength, high anticorrosive performance, high heat stability, high overload capacity, etc. for use in heavy speed electrified railway.
Description
Technical field
The invention belongs to metal alloy compositions, particularly a kind of copper magnesium alloy catenary that is used for the electrified railway heavy haul transport.
Background technology
Catenary is one of important materials on the high-speed electric railway contact system, requirement has higher mechanical strength, high temperature resistant, anti-oxidant, withstanding corrosion, performance such as wear-resisting, all there is the material property defective in hard fine copper twisted wire or the steel cored aluminum stranded wire that adopts at present, and wherein performance figure such as the mechanical strength of hard fine copper twisted wire, heat-resisting quantity, heat stability, overload capacity, corrosion stability are relatively poor; Steel cored aluminum stranded wire, because the electrochemical action between the steel aluminium, its corrosion stability is relatively poor, described two kinds of materials all can not satisfy the requirement of Modern High-Speed electrification railway contact net with catenary.
Summary of the invention
Given this, the objective of the invention is, a kind of copper magnesium alloy catenary that is used for the electrified railway heavy haul transport with higher mechanical strength, high temperature resistant, anti-oxidant, withstanding corrosion, wear-resistant, performance such as electrical resistivity is lower is provided.
Purpose of the present invention realizes by following technical measures: a kind of copper magnesium alloy catenary that is used for the electrified railway heavy haul transport, catenary adopt copper magnesium alloy, content of magnesium 0.1-0.3% wherein, and the impurity sum total is not more than 0.3%, and surplus is a copper.
Its manufacturing process is:
1, adopt updraft continuous casting process, wherein magnesium is directly to add in the molten copper liquid with copper magnesium master alloy solid state, and timing sampling is measured the magnesium burn out rate, replenishes copper magnesium master alloy, guarantees content of magnesium 0.1-0.3%, makes copper magnesium alloy casting bar;
2, copper magnesium master alloy by magnesium+Nacl coverture, adds electrolytic copper, is warming up to 1050-1150 ℃, and the casting demoulding gets copper magnesium master alloy;
3, adopt the rolling casting bar of three roller cold-rolling process, make and draw the bar base;
4, adopt three mould stretchers, six mould stretchers will roll the bar wire drawing, use the stranded manufactured product of cage stranding machine again.
The described copper magnesium alloy catenary that is used for the electrified railway heavy haul transport, its electrical resistivity is not more than 0.02150 Ω .mm
2/ m.
Copper magnesium alloy catenary, its electrical resistivity are not more than 0.02150 Ω .mm
2/ m, be particularly suitable for the heavy haul transport of electrified railway, because the alloy strengthening and the work strengthening effect of copper-magnesium alloy strand, material integrated performance indexs such as its mechanical strength, corrosion stability, heat stability, overload capacity are higher, can satisfy the demand of high-speed electric railway operation fully.
The specific embodiment
Embodiment 1:
1, copper ingot 35kg is separated in power taking, magnesium ingot 5.5kg, and Nacl covers, and is warming up to 1050-1150 ℃, and the casting demoulding gets copper magnesium master alloy;
2, adopt updraft continuous casting process, wherein magnesium is directly to add in the molten copper liquid with copper magnesium master alloy solid state, and timing sampling is measured the magnesium burn out rate, replenishes copper magnesium master alloy, guarantees content of magnesium 0.13%, makes copper magnesium alloy casting bar;
3,, make and draw the bar base with the rolling casting bar of three roller cold-rolling process;
4, adopt three mould stretchers, the rolling pull bar of φ 8mm is drawn into the draw line base of φ 5.2mm, on six mould stretchers, φ 5.2mm line base drawn again and is φ 2.5mm monofilament, use the stranded manufactured product of cage stranding machine again.
Embodiment 2:
1, copper ingot 35kg is separated in power taking, magnesium ingot 5.6kg, and Nacl covers, and is warming up to 1050-1150 ℃, and the casting demoulding gets copper magnesium master alloy;
2, adopt updraft continuous casting process, wherein magnesium is directly to add in the molten copper liquid with copper magnesium master alloy solid state, and timing sampling is measured the magnesium burn out rate, replenishes copper magnesium master alloy, guarantees content of magnesium 0.15%, makes copper magnesium alloy casting bar;
3,, make and draw the bar base with the rolling casting bar of three roller cold-rolling process;
4, adopt three mould stretchers, the rolling pull bar of φ 8mm is drawn into the draw line base of φ 5.2mm, on six mould stretchers, φ 5.2mm line base drawn again and is φ 2.2mm monofilament, use the stranded manufactured product of cage stranding machine again.
Embodiment 3:
1,35kg is separated in power taking, magnesium ingot 5.7kg, and Nacl covers, and is warming up to 1050-1150 ℃, and the casting demoulding gets copper magnesium master alloy;
2, adopt updraft continuous casting process, wherein magnesium is directly to add in the molten copper liquid with copper magnesium master alloy solid state, and timing sampling is measured the magnesium burn out rate, replenishes copper magnesium master alloy, guarantees content of magnesium 0.18%, makes copper magnesium alloy casting bar;
3,, make and draw the bar base with the rolling casting bar of three roller cold-rolling process;
4, adopt three mould stretchers, the rolling pull bar of φ 8mm is drawn into the draw line base of φ 5.2mm, on six mould stretchers, φ 5.2mm line base drawn again and is φ 2.5mm monofilament, use the stranded manufactured product of cage stranding machine again.
Claims (1)
1, a kind of copper magnesium alloy catenary that is used for the electrified railway heavy haul transport, catenary adopts copper magnesium alloy, and it is characterized in that: content of magnesium is 0.1-0.3% in the copper magnesium alloy, and total impurities is not more than 0.3%, and surplus is a copper.
Its manufacturing process is:
(1), adopt updraft continuous casting process, wherein magnesium is directly to add in the molten copper liquid with copper magnesium master alloy solid state, timing sampling is measured the magnesium burn out rate, replenishes copper magnesium master alloy, guarantees content of magnesium 0.1-0.3%, makes copper magnesium alloy casting bar;
(2), copper magnesium master alloy, by magnesium+Nacl coverture, add electrolytic copper, be warming up to 1050-1150 ℃, the casting demoulding, copper magnesium master alloy;
(3), adopt the rolling casting bar of three roller cold-rolling process, make and draw the bar base;
(4), adopt three mould stretchers, six mould stretchers will roll the bar wire drawing, use the stranded manufactured product of cage stranding machine again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710010836 CN101032929A (en) | 2007-04-05 | 2007-04-05 | Magnesium and copper alloy carrier cable for electrization railway burden transporting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710010836 CN101032929A (en) | 2007-04-05 | 2007-04-05 | Magnesium and copper alloy carrier cable for electrization railway burden transporting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101032929A true CN101032929A (en) | 2007-09-12 |
Family
ID=38729736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710010836 Pending CN101032929A (en) | 2007-04-05 | 2007-04-05 | Magnesium and copper alloy carrier cable for electrization railway burden transporting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101032929A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102329971A (en) * | 2011-06-20 | 2012-01-25 | 江阴市电工合金有限公司 | Method for smelting copper magnesium alloy |
| CN107103941A (en) * | 2017-03-28 | 2017-08-29 | 江苏藤仓亨通光电有限公司 | A kind of superelevation conductance high intensity twisted wire and its corresponding manufacturing process |
| CN109371280A (en) * | 2018-10-15 | 2019-02-22 | 西安西电光电缆有限责任公司 | A kind of high-strength high-conductivity copper-magnesium alloy strand casting bar and its casting technique |
-
2007
- 2007-04-05 CN CN 200710010836 patent/CN101032929A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102329971A (en) * | 2011-06-20 | 2012-01-25 | 江阴市电工合金有限公司 | Method for smelting copper magnesium alloy |
| CN107103941A (en) * | 2017-03-28 | 2017-08-29 | 江苏藤仓亨通光电有限公司 | A kind of superelevation conductance high intensity twisted wire and its corresponding manufacturing process |
| CN109371280A (en) * | 2018-10-15 | 2019-02-22 | 西安西电光电缆有限责任公司 | A kind of high-strength high-conductivity copper-magnesium alloy strand casting bar and its casting technique |
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