CN103887016A - Processing technology of aluminium alloy for cable conductor - Google Patents
Processing technology of aluminium alloy for cable conductor Download PDFInfo
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- CN103887016A CN103887016A CN201410077258.1A CN201410077258A CN103887016A CN 103887016 A CN103887016 A CN 103887016A CN 201410077258 A CN201410077258 A CN 201410077258A CN 103887016 A CN103887016 A CN 103887016A
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Abstract
The invention relates to a processing technology of aluminium alloy for a cable conductor. The processing technology comprises the following steps of (1) material preparation, (2) clearing and preheating, (3) feeding, (4) agent adding, (5) stirring, (6) standing and slug removing, (7) sample identification, (8) heat insulation, (9) casting, (10) rolling, (11) wire drawing, (12) twisting and (13) annealing. The processing technology of the aluminium alloy for the cable conductor has the advantages of being reasonable in step arrangement, convenient to process and the like, the performance of an aluminium alloy conductor can be improved, the processing quality of the aluminium alloy conductor is guaranteed, 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 the processing technology of aluminium alloy for a kind of cable conductor.
Background technology
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.
The aluminium alloy cable that used is in the market because the method for processing and manufacturing 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 is to provide a kind of procedure reasonably, conveniently to process, and can improve the technique of aluminium alloy conductor performance, i.e. the processing technology of aluminium alloy for a kind of cable conductor.
Technical problem to be solved by this invention realizes by the following technical solutions:
A processing technology for aluminium alloy for cable conductor, this technique comprises following processing step:
(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 ℃～720 ℃, 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 ℃～745 ℃, 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～3 hours, guarantee that the temperature in smelting furnace is controlled at the temperature of regulation in step (4) simultaneously, can guarantee 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～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 is identified: sampling and adjusting component, and 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 invention has the beneficial effects as follows: the present invention has the advantages such as the reasonable and convenient processing of procedure, can improve aluminium alloy conductor performance, guarantee the crudy of aluminium alloy conductor, 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.
A processing technology for aluminium alloy for cable conductor, this technique comprises following processing step:
(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 ℃～720 ℃, 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 ℃～745 ℃, 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～3 hours, guarantee that the temperature in smelting furnace is controlled at the temperature of regulation in step (4) simultaneously, can guarantee 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～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 is identified: sampling and adjusting component, and 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 processing technology 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 basic 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 (4)
1. a processing technology for aluminium alloy for cable conductor, is characterized in that: this technique comprises following processing step:
(1) batching: the formula according to aluminium alloy is prepared burden;
(2) cleaning, preheating: smelting furnace is cleaned out, and intensification is preheating to 700 ℃～720 ℃;
(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, smelting furnace temperature is elevated to 725 ℃～745 ℃;
(5) stir: stir aluminium alloy liquid, stirring should steadily be carried out, and stress not play too large wave, in case in oxide entrapment melt, stir 2 hours～3 hours, guarantee that the temperature in smelting furnace is controlled at the temperature of regulation in step (4) simultaneously;
(6) leave standstill, remove the gred: stir and finish rear leaving standstill, the slag thing in smelting furnace is removed clean;
(7) sample is identified: sampling and adjusting component, and in analysis aluminium alloy liquid, whether each component ratio reaches and presets;
(8) insulation: aluminium alloy is proceeded to holding furnace;
(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.
2. the processing technology of aluminium alloy for a kind of cable conductor according to claim 1, is characterized in that: described temperature retention time is 2 hours.
3. the processing technology of aluminium alloy for a kind of cable conductor according to claim 1, is characterized in that: described slag-cleaning agent, the weight of refining agent are respectively alloy total weight 0.2%, 0.3%, and slag-cleaning agent and refining agent should be dried.
4. the processing technology of aluminium alloy for a kind of cable conductor according to claim 1, is characterized in that: it is 10min～20min that described stirring finishes the rear standing time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410077258.1A CN103887016A (en) | 2014-03-04 | 2014-03-04 | Processing technology of aluminium alloy for cable conductor |
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| CN201410077258.1A CN103887016A (en) | 2014-03-04 | 2014-03-04 | Processing technology of aluminium alloy for cable conductor |
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| CN103887016A true CN103887016A (en) | 2014-06-25 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104599736A (en) * | 2015-01-31 | 2015-05-06 | 安徽华纳合金材料科技有限公司 | Ferro-aluminum alloy wire with boron and manufacturing method thereof |
| CN105316535A (en) * | 2015-01-31 | 2016-02-10 | 安徽华纳合金材料科技有限公司 | Copper-containing ferro-aluminum alloy wire and fabrication method thereof |
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| CN101935787A (en) * | 2010-10-19 | 2011-01-05 | 上海友升铝业有限公司 | Aluminum alloy material with high elongation rate |
| CN102162050A (en) * | 2011-01-28 | 2011-08-24 | 江苏中天科技股份有限公司 | Method for manufacturing medium-strength aluminum alloy wire with electric conductivity of 59 percent |
| CN102453819A (en) * | 2010-10-26 | 2012-05-16 | 上海中天铝线有限公司 | Manufacture method of medium-strength aluminum alloy wire with electrical conductivity of 59 percent |
| CN102732753A (en) * | 2012-06-06 | 2012-10-17 | 包头铝业有限公司 | Production method for high content aluminum-base interalloy |
| CN103276260A (en) * | 2013-05-24 | 2013-09-04 | 怡球金属资源再生（中国）股份有限公司 | Aluminum alloy ingot for high-zinc car and production method thereof |
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2014
- 2014-03-04 CN CN201410077258.1A patent/CN103887016A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101935787A (en) * | 2010-10-19 | 2011-01-05 | 上海友升铝业有限公司 | Aluminum alloy material with high elongation rate |
| CN102453819A (en) * | 2010-10-26 | 2012-05-16 | 上海中天铝线有限公司 | Manufacture method of medium-strength aluminum alloy wire with electrical conductivity of 59 percent |
| CN102162050A (en) * | 2011-01-28 | 2011-08-24 | 江苏中天科技股份有限公司 | Method for manufacturing medium-strength aluminum alloy wire with electric conductivity of 59 percent |
| CN102732753A (en) * | 2012-06-06 | 2012-10-17 | 包头铝业有限公司 | Production method for high content aluminum-base interalloy |
| CN103276260A (en) * | 2013-05-24 | 2013-09-04 | 怡球金属资源再生（中国）股份有限公司 | Aluminum alloy ingot for high-zinc car and production method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104599736A (en) * | 2015-01-31 | 2015-05-06 | 安徽华纳合金材料科技有限公司 | Ferro-aluminum alloy wire with boron and manufacturing method thereof |
| CN105316535A (en) * | 2015-01-31 | 2016-02-10 | 安徽华纳合金材料科技有限公司 | Copper-containing ferro-aluminum alloy wire and fabrication method thereof |
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Application publication date: 20140625 |