CN103886930A - Formula of aluminium alloy for cable conductor - Google Patents
Formula of aluminium alloy for cable conductor Download PDFInfo
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- CN103886930A CN103886930A CN201410077254.3A CN201410077254A CN103886930A CN 103886930 A CN103886930 A CN 103886930A CN 201410077254 A CN201410077254 A CN 201410077254A CN 103886930 A CN103886930 A CN 103886930A
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Abstract
The invention relates to a formula of aluminium alloy for a cable conductor. The formula comprises, by mass, 0.07%-0.09% of Si, 0.5%-0.8% of Fe, 0.1%-0.15% of Cu, 0.05-0.08% of Mg, 0.08%-0.10% of Zn, 0.008%-0.01% of B, 0.06%-0.10% of rare earth and 98.8%-99.1% of Al. The formula of the aluminium alloy for the cable conductor has the advantages of being reasonable in material matching, low in manufacturing cost and the like, the performance of an aluminium alloy conductor can be improved, the service life of an aluminium alloy cable can be prolonged, and the defects that in an existing aluminium alloy conductor, creep deformation and breakage can happen easily, and the connecting reliability is low are overcome.
Description
Technical field
The present invention relates to cables manufacturing technical field, specifically a kind of cable conductor aluminium alloy formula.
Background technology
As everyone knows, aluminium is the metal material that a kind of electric conductivity is only second to copper, is widely used in cable industry as conductor wire core.Aluminium conductor cable, because of the shortcoming such as its easy creep, easy fracture, connection reliability be low, cause that potential safety hazard is larger in actual use, national standard is considered the security reliability of power supply, the application of aluminium cable has also been done to many restrictions, make aluminium cable little in the application of power industry, be only applied in security reliability is required to lower and higher to cost requirement place.In recent years, there is a serious shortage in the supply for internal copper resource, 60% above dependence on import, and price is high simultaneously, has seriously restricted the high speed development of domestic economy.As cable industry, implement, with aluminium joint copper, strategic paces with aluminium for copper, can significantly reduce on the one hand the cost of investment of circuit, reduce on the other hand the dependence of economic development to narrow resources.And aluminum current alloy cable is because self material matching is unreasonable, in application process, exist the defects such as easy creep, easy fracture, connection reliability be low, cause useful life shorter, in the time there are the problems referred to above, need timely replacing, otherwise make troubles to normal use of people, expend manpower and materials and change, change required cost higher.
Summary of the invention
Technical problem to be solved by this invention be to provide a kind of material adapted reasonably, low cost of manufacture, can improve the formula of aluminium alloy conductor performance, i.e. a kind of cable conductor aluminium alloy formula.
Technical problem to be solved by this invention realizes by the following technical solutions:
A kind of cable conductor aluminium alloy formula, this formula comprises Si, Fe, Cu, Mg, Zn, B, rare earth and Al, the shared mass percent of each component is as follows:
The shared best in quality percentage of described each component is as follows:
The performance of related component and effect are as follows:
Cu:Cu element can increase the resistance stability of alloy in the time of high temperature;
Fe:Fe element can be proposed heavy alloyed intensity and creep resistance;
Mg:Mg element, under same interfacial pressure, can improve alloy material contact point and make it have higher tensile strength;
Rare earth: rare earth element can play purification, improves purity, fills up cosmetic bug, crystal grain thinning, minimizing segregation.
The invention has the beneficial effects as follows: the present invention has material adapted rationally and the advantage such as low cost of manufacture, can improve aluminium alloy conductor performance, extend useful life of aluminium alloy cable, made up existing aluminium alloy conductor and existed the defects such as easy creep, easy fracture, connection reliability be low.
Embodiment
For technological means, creation characteristic that the present invention is realized, reach object and effect is easy to understand, below the present invention is further set forth.
Embodiment mono-:
A kind of cable conductor aluminium alloy formula, this formula comprises Si, Fe, Cu, Mg, Zn, B, rare earth and Al, the shared mass percent of each component is as follows:
During according to above-mentioned formula actual production, need to process through following processing step processing:
(1) batching: the formula according to aluminium alloy is prepared burden;
(2) cleaning, preheating: smelting furnace is cleaned out, and heated up and be preheating to 700 DEG C, adopt preheating can shorten the time of smelting furnace heating, improve the smelting efficiency of aluminium alloy;
(3) pan feeding: the each constituents mixt in step (1) is added and shifted to an earlier date in preheated smelting furnace;
(4) add medicament: add slag-cleaning agent and refining agent, described slag-cleaning agent, the weight of refining agent are respectively 0.2%, 0.3% of alloy total weight, slag-cleaning agent and refining agent should be dried, add slag-cleaning agent and refining agent, contribute to remove on the one hand the slag thing of mixture inside, also can improve the Forming Quality of aluminium alloy, smelting furnace temperature is elevated to 725 DEG C, this temperature can better promote the mixing of each weighing area;
(5) stir: stir aluminium alloy liquid, stirring should steadily be carried out, stress not play too large wave, in case in oxide entrapment melt, stir 2 hours, ensure that the temperature in smelting furnace is controlled at the temperature of regulation in step (4) simultaneously, can ensure like this quality of stirring, aluminium alloy liquid is mixed fully;
(6) leave standstill, remove the gred: stir and finish rear leaving standstill, the standing time is 10min, after leaving standstill, slag thing in aluminium alloy liquid can be separated, and aggregate into piece, and the slag thing in smelting furnace removed clean, prevent that the quality after slag thing is for aluminium alloy conductor moulding from impacting;
(7) sample qualification: sampling and adjusting component, in analysis aluminium alloy liquid, whether each component ratio reaches and presets, if can proceed following process after up to standard, if not up to standard, needs again the proportioning of batching to be adjusted;
(8) insulation: aluminium alloy is proceeded to holding furnace, and described temperature retention time is 2 hours;
(9) casting: casting forms aluminium alloy cast ingot, should guarantee when casting that pot is clean, dry in the middle of chute, strictly controls temperature and flow, and steel band, crystallizing wheel are dry, and lubricated good, cooling water is fully reasonable, cooling evenly, go out ingot temperature normal;
(10) rolling: aluminium alloy ingots is rolled to formation aluminium alloy rod;
(11) bracing wire: the aluminium alloy rod good to rolling carries out bracing wire, when bracing wire, filament diameter configures mould as requested, guarantees fully lubricated;
(12) stranded: the monofilament drawing is carried out to stranded formation aluminium alloy conductor, and according to different size, mould is pressed in apolegamy, and when stranded, tension force should be even, and arrangement should be correct;
(13) annealing: the annealing in process after stranded, the aluminium alloy conductor after stranded is put into annealing furnace and anneal, set annealing temperature and annealing time according to technological requirement, after annealing, aluminium alloy conductor can be used for actual use.
The aluminium alloy conductor resistivity that above-mentioned formula is produced according to above-mentioned steps can reach 62.5%IACS, and monofilament tensile strength can reach 135MPa, and monofilament percentage elongation can reach 28%.
Embodiment bis-:
A kind of cable conductor aluminium alloy formula, this formula comprises Si, Fe, Cu, Mg, Zn, B, rare earth and Al, the shared mass percent of each component is as follows:
During according to above-mentioned formula actual production, need to process through following processing step processing:
(1) batching: the formula according to aluminium alloy is prepared burden;
(2) cleaning, preheating: smelting furnace is cleaned out, and heated up and be preheating to 710 DEG C, adopt preheating can shorten the time of smelting furnace heating, improve the smelting efficiency of aluminium alloy;
(3) pan feeding: the each constituents mixt in step (1) is added and shifted to an earlier date in preheated smelting furnace;
(4) add medicament: add slag-cleaning agent and refining agent, described slag-cleaning agent, the weight of refining agent are respectively 0.2%, 0.3% of alloy total weight, slag-cleaning agent and refining agent should be dried, add slag-cleaning agent and refining agent, contribute to remove on the one hand the slag thing of mixture inside, also can improve the Forming Quality of aluminium alloy, smelting furnace temperature is elevated to 735 DEG C, this temperature can better promote the mixing of each weighing area;
(5) stir: stir aluminium alloy liquid, stirring should steadily be carried out, stress not play too large wave, in case in oxide entrapment melt, stir 2.5 hours, ensure that the temperature in smelting furnace is controlled at the temperature of regulation in step (4) simultaneously, can ensure like this quality of stirring, aluminium alloy liquid is mixed fully;
(6) leave standstill, remove the gred: stir and finish rear leaving standstill, the standing time is 15min, after leaving standstill, slag thing in aluminium alloy liquid can be separated, and aggregate into piece, and the slag thing in smelting furnace removed clean, prevent that the quality after slag thing is for aluminium alloy conductor moulding from impacting;
(7) sample qualification: sampling and adjusting component, in analysis aluminium alloy liquid, whether each component ratio reaches and presets, if can proceed following process after up to standard, if not up to standard, needs again the proportioning of batching to be adjusted;
(8) insulation: aluminium alloy is proceeded to holding furnace, and described temperature retention time is 2 hours;
(9) casting: casting forms aluminium alloy cast ingot, should guarantee when casting that pot is clean, dry in the middle of chute, strictly controls temperature and flow, and steel band, crystallizing wheel are dry, and lubricated good, cooling water is fully reasonable, cooling evenly, go out ingot temperature normal;
(10) rolling: aluminium alloy ingots is rolled to formation aluminium alloy rod;
(11) bracing wire: the aluminium alloy rod good to rolling carries out bracing wire, when bracing wire, filament diameter configures mould as requested, guarantees fully lubricated;
(12) stranded: the monofilament drawing is carried out to stranded formation aluminium alloy conductor, and according to different size, mould is pressed in apolegamy, and when stranded, tension force should be even, and arrangement should be correct;
(13) annealing: the annealing in process after stranded, the aluminium alloy conductor after stranded is put into annealing furnace and anneal, set annealing temperature and annealing time according to technological requirement, after annealing, aluminium alloy conductor can be used for actual use.
The aluminium alloy conductor resistivity of producing through above-mentioned formula can reach 62.5%IACS, and monofilament tensile strength can reach 170MPa, and monofilament percentage elongation can reach 36%.
Embodiment tri-:
A kind of cable conductor aluminium alloy formula, this formula comprises Si, Fe, Cu, Mg, Zn, B, rare earth and Al, the shared mass percent of each component is as follows:
During according to above-mentioned formula actual production, need to process through following processing step processing:
(1) batching: the formula according to aluminium alloy is prepared burden;
(2) cleaning, preheating: smelting furnace is cleaned out, and heated up and be preheating to 720 DEG C, adopt preheating can shorten the time of smelting furnace heating, improve the smelting efficiency of aluminium alloy;
(3) pan feeding: the each constituents mixt in step (1) is added and shifted to an earlier date in preheated smelting furnace;
(4) add medicament: add slag-cleaning agent and refining agent, described slag-cleaning agent, the weight of refining agent are respectively 0.2%, 0.3% of alloy total weight, slag-cleaning agent and refining agent should be dried, add slag-cleaning agent and refining agent, contribute to remove on the one hand the slag thing of mixture inside, also can improve the Forming Quality of aluminium alloy, smelting furnace temperature is elevated to 745 DEG C, this temperature can better promote the mixing of each weighing area;
(5) stir: stir aluminium alloy liquid, stirring should steadily be carried out, stress not play too large wave, in case in oxide entrapment melt, stir 3 hours, ensure that the temperature in smelting furnace is controlled at the temperature of regulation in step (4) simultaneously, can ensure like this quality of stirring, aluminium alloy liquid is mixed fully;
(6) leave standstill, remove the gred: stir and finish rear leaving standstill, the standing time is 20min, after leaving standstill, slag thing in aluminium alloy liquid can be separated, and aggregate into piece, and the slag thing in smelting furnace removed clean, prevent that the quality after slag thing is for aluminium alloy conductor moulding from impacting;
(7) sample qualification: sampling and adjusting component, in analysis aluminium alloy liquid, whether each component ratio reaches and presets, if can proceed following process after up to standard, if not up to standard, needs again the proportioning of batching to be adjusted;
(8) insulation: aluminium alloy is proceeded to holding furnace, and described temperature retention time is 2 hours;
(9) casting: casting forms aluminium alloy cast ingot, should guarantee when casting that pot is clean, dry in the middle of chute, strictly controls temperature and flow, and steel band, crystallizing wheel are dry, and lubricated good, cooling water is fully reasonable, cooling evenly, go out ingot temperature normal;
(10) rolling: aluminium alloy ingots is rolled to formation aluminium alloy rod;
(11) bracing wire: the aluminium alloy rod good to rolling carries out bracing wire, when bracing wire, filament diameter configures mould as requested, guarantees fully lubricated;
(12) stranded: the monofilament drawing is carried out to stranded formation aluminium alloy conductor, and according to different size, mould is pressed in apolegamy, and when stranded, tension force should be even, and arrangement should be correct;
(13) annealing: the annealing in process after stranded, the aluminium alloy conductor after stranded is put into annealing furnace and anneal, set annealing temperature and annealing time according to technological requirement, after annealing, aluminium alloy conductor can be used for actual use.
The aluminium alloy conductor resistivity of producing through above-mentioned formula can reach 62.5%IACS, and monofilament tensile strength can reach 150MPa, and monofilament percentage elongation can reach 31%.
To sum up, the aluminium alloy conductor resistivity of producing through formula of the present invention can reach 62.5%IACS, and monofilament tensile strength can reach 120MPa～180MPa, and monofilament percentage elongation can reach 28%～36%.This aluminium alloy conductor has improved creep resistance, electrical property, the mechanical performance of aluminium, is applicable to the conductor wire core of power cable in electric wire manufacture.
More than show and described general principle of the present invention, principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what in above-described embodiment and specification, describe is principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (2)
1. a cable conductor aluminium alloy formula, is characterized in that: this formula comprises Si, Fe, Cu, Mg, Zn, B, rare earth and Al, and the shared mass percent of each component is as follows:
2. a kind of cable conductor aluminium alloy formula according to claim 1, is characterized in that: the shared best in quality percentage of described each component is as follows:
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| CN201410077254.3A CN103886930A (en) | 2014-03-04 | 2014-03-04 | Formula of aluminium alloy for cable conductor |
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| CN201410077254.3A CN103886930A (en) | 2014-03-04 | 2014-03-04 | Formula of aluminium alloy for cable conductor |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105316534A (en) * | 2015-01-31 | 2016-02-10 | 安徽华纳合金材料科技有限公司 | Rare earth-containing ferro-aluminum alloy wire and fabrication method thereof |
| CN106297941A (en) * | 2016-08-09 | 2017-01-04 | 安徽亚南电缆厂 | A kind of preparation method of aluminium alloys for automobile cable |
| CN106297940A (en) * | 2016-08-09 | 2017-01-04 | 安徽亚南电缆厂 | One is pressed rare earth aluminium alloy cable |
| CN108677071A (en) * | 2018-05-23 | 2018-10-19 | 郭守华 | High-strength environment-friendly aluminum-alloy wire preparation process |
| CN109868391A (en) * | 2019-03-11 | 2019-06-11 | 烟台孚信达双金属股份有限公司 | A kind of method that high-strength highly-conductive rare earth alloy aluminium fills core material and its technique and prepares copper-clad rare earth alloy aluminium |
| WO2019112997A1 (en) * | 2017-12-07 | 2019-06-13 | NanoAL LLC | 8000-series aluminum alloy |
| CN110358955A (en) * | 2019-08-07 | 2019-10-22 | 安庆市泽烨新材料技术推广服务有限公司 | A kind of high conductivity aluminium alloy and preparation method thereof |
| US10633725B2 (en) | 2015-10-14 | 2020-04-28 | NaneAL LLC | Aluminum-iron-zirconium alloys |
| CN112111676A (en) * | 2020-09-26 | 2020-12-22 | 江苏中京电缆科技有限公司 | High-performance rare earth aluminum alloy conductor and preparation method thereof |
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| JP2001032032A (en) * | 1999-07-23 | 2001-02-06 | Furukawa Electric Co Ltd:The | Aluminum alloy material to be coated with resin, and its manufacture |
| CN102610293A (en) * | 2011-01-20 | 2012-07-25 | Ls电线有限公司 | Aluminum alloy wire with high electrical conductivity and high strength and manufacturing method thereof |
| CN102903415A (en) * | 2012-09-21 | 2013-01-30 | 佛冈鑫源恒业电缆科技有限公司 | Special-shaped oxidation-resistant high-conductivity aluminum alloy carbon fiber lead wire and manufacturing method |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2001032032A (en) * | 1999-07-23 | 2001-02-06 | Furukawa Electric Co Ltd:The | Aluminum alloy material to be coated with resin, and its manufacture |
| CN102610293A (en) * | 2011-01-20 | 2012-07-25 | Ls电线有限公司 | Aluminum alloy wire with high electrical conductivity and high strength and manufacturing method thereof |
| CN102903415A (en) * | 2012-09-21 | 2013-01-30 | 佛冈鑫源恒业电缆科技有限公司 | Special-shaped oxidation-resistant high-conductivity aluminum alloy carbon fiber lead wire and manufacturing method |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105316534A (en) * | 2015-01-31 | 2016-02-10 | 安徽华纳合金材料科技有限公司 | Rare earth-containing ferro-aluminum alloy wire and fabrication method thereof |
| US10633725B2 (en) | 2015-10-14 | 2020-04-28 | NaneAL LLC | Aluminum-iron-zirconium alloys |
| CN106297941A (en) * | 2016-08-09 | 2017-01-04 | 安徽亚南电缆厂 | A kind of preparation method of aluminium alloys for automobile cable |
| CN106297940A (en) * | 2016-08-09 | 2017-01-04 | 安徽亚南电缆厂 | One is pressed rare earth aluminium alloy cable |
| WO2019112997A1 (en) * | 2017-12-07 | 2019-06-13 | NanoAL LLC | 8000-series aluminum alloy |
| CN108677071A (en) * | 2018-05-23 | 2018-10-19 | 郭守华 | High-strength environment-friendly aluminum-alloy wire preparation process |
| CN109868391A (en) * | 2019-03-11 | 2019-06-11 | 烟台孚信达双金属股份有限公司 | A kind of method that high-strength highly-conductive rare earth alloy aluminium fills core material and its technique and prepares copper-clad rare earth alloy aluminium |
| CN110358955A (en) * | 2019-08-07 | 2019-10-22 | 安庆市泽烨新材料技术推广服务有限公司 | A kind of high conductivity aluminium alloy and preparation method thereof |
| CN112111676A (en) * | 2020-09-26 | 2020-12-22 | 江苏中京电缆科技有限公司 | High-performance rare earth aluminum alloy conductor and preparation method thereof |
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Application publication date: 20140625 |