CN1271024A - Preparation of boronic aluminium alloy with high conductivity - Google Patents
Preparation of boronic aluminium alloy with high conductivity Download PDFInfo
- Publication number
- CN1271024A CN1271024A CN 99104364 CN99104364A CN1271024A CN 1271024 A CN1271024 A CN 1271024A CN 99104364 CN99104364 CN 99104364 CN 99104364 A CN99104364 A CN 99104364A CN 1271024 A CN1271024 A CN 1271024A
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- CN
- China
- Prior art keywords
- aluminium
- aluminum
- boron
- bar
- adds
- 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
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- 229910000838 Al alloy Inorganic materials 0.000 title abstract description 3
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 60
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 59
- 239000004411 aluminium Substances 0.000 claims abstract description 49
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052796 boron Inorganic materials 0.000 claims abstract description 9
- 239000000919 ceramic Substances 0.000 claims abstract description 4
- 238000001914 filtration Methods 0.000 claims abstract description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N argon Substances [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 11
- 239000004020 conductor Substances 0.000 claims description 8
- 229910052786 argon Inorganic materials 0.000 claims description 6
- 238000000746 purification Methods 0.000 claims description 6
- 238000000137 annealing Methods 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 4
- 238000007664 blowing Methods 0.000 claims description 3
- 239000006260 foam Substances 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000009749 continuous casting Methods 0.000 claims description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000011261 inert gas Substances 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 4
- 229910052761 rare earth metal Inorganic materials 0.000 description 4
- 150000002910 rare earth metals Chemical class 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 238000007872 degassing Methods 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- -1 Si≤0.08% wherein Substances 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- FGUJWQZQKHUJMW-UHFFFAOYSA-N [AlH3].[B] Chemical compound [AlH3].[B] FGUJWQZQKHUJMW-UHFFFAOYSA-N 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 150000001398 aluminium Chemical class 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Conductive Materials (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Electrolytic Production Of Metals (AREA)
Abstract
The present invention is suitable for manufacture of aluminum rod for electrical wire and cable. Industrial pure aluminum with purity of 99.5-99.7% is added with 0.05-0.13% of boron to produce aluminum rod,which is then annealed or self-annealed at 200-300 deg.C for 1.5-3 hr. By means of combining the inert gas treatment to purify molten aluminum with the foamed ceramic filtering process, the aluminum alloy is made to have resistivity as low as 2.72-2.74 E(-8) ohm.m, while maintaining the strength level same as industrial pure aluminum, plasticity 10-20% higher than that of industrial pure aluminium and excellent comprehensive mechanical property.
Description
The invention belongs to the manufacturing technology of conductive aluminum in the metal material field, be specially adapted to the manufacturing processed of aluminium bar in the electric wire field.
In the research and manufacturing processed of conductive aluminum, reduce the resistivity of aluminium, improve its electroconductibility, be the target that people constantly pursue always.At present, the electric conductivity standard of the commercial-purity aluminium of Gong Rening is 61%IACS in the world, and the electric conductivity of regulation aluminium only is 59.45% in China's standard.In the various factors that influence aluminium electroconductibility, chemical ingredients is one of important factor.Electroconductibility with the method raising aluminium that adds alloying element has two kinds of approach at present, the one, in aluminium, add rare earth, the research of this respect has obtained certain progress, but also exist many contradiction, as " rare earth is to the influence of aluminium conductor electroconductibility " paper that " China YouSe Acta Metallurgica Sinica " the 1st phase in 1992 delivers, think that rare earth does not reduce the effect of the resistivity of aluminium.From the feedback information that aluminium bar manufacturers such as Guizhou Aluminum Factory, Jilin huge rock aluminium manufacturer receive, therefore the result of use instability holds a negating attitude to the effect of rare earth.The 2nd, in aluminium, add boron, normally in aluminium, add≤0.05% boron at present, it is called as boronation and handles as a kind of industrial removal of impurities means, is employed.As the conductive aluminum 1350E of the U.S., be exactly in 99.5% aluminium, to add≤0.05% boron, its electric conductivity reaches 62%IACS.In the article of " handle improve the electrical aluminum rod electric conductivity with the aluminium liquid boronation " delivered in " electric wire " second phase in 1984, Shengyang Electrical Cable Factory and Shanghai Electrical Cable Research Institute cooperation have been introduced, with the method that adds potassium fluoborate multiple import, homemade aluminium are carried out the result of study that boronation is handled, the electric conductivity that various aluminium can reach after boronation is handled is all between 61%～62%IACS.
The technology that the objective of the invention is to invent a kind of process stabilizing, can produce the higher aluminium conductor of electric conductivity to improve the power transmission efficiency of transmitting line, reduces meaningless energy consumption in the transmission of electricity process.
Technical scheme of the present invention is by self-annealing or annealing process after adding 0.05%～0.13% boron and making bar, and cooperates purification, the filter process of aluminium liquid, improves the electroconductibility of aluminium.
Specific embodiment of the present invention is as follows:
Implementation condition is an aluminium bar continuous casting and tandem rolling production line, in the middle part of the chute of preceding case, be provided with purifying treatment groove and filter vat at smelting furnace or maintenance stove, the filter vat size should be complementary with rolling mill speed, and the purification tank size is design in 8～15 minutes by aluminium liquid treatment time in groove.Be provided with insulation kiln or stay-warm case in milling train closing quotation place.
(1) original aluminum liquid composition requires: purity is 99.5%～99.7% aluminium, Si≤0.08% wherein, and Fe≤0.20%, (Cr+Ti+V)≤0.03%.
(2) aluminium liquid carries out rough purification and handles in holding furnace, and makes temperature be controlled at 750～800 ℃, adds the Al-B master alloy, makes to add the boron amount and account for 0.05%～0.13% of aluminium liquid.
(3) stir 2～5min after adding the Al-B master alloy, static 5～20min comes out of the stove.
When (4) aluminium liquid is flowed through the purifying treatment groove, it is carried out purification handle.Purifying treatment adopts double-deck paddle---and argon bottom-blowing refining plant, argon flow amount are 15～20L/min, and the paddle rotating speed is 450～700r/min.
(5) aluminium liquid flows into filter vat after degassing and purifying, adopts the aluminum oxide foam ceramic filter plate of 20～30PPI to filter.
(6) case entered continuous caster before the aluminium liquid after the filtration treatment flowed into.
(7) controlled chilling intensity makes aluminium bar closing quotation temperature at 200～320 ℃, directly enters in the stay-warm case that is incubated kiln or insulating lining is housed after the closing quotation of aluminium bar and is incubated 1.5～3h, carries out self-annealing; Or the 1.5～3h that in heat treatment furnace, under 280 ℃～300 ℃ conditions, anneals.
Below provide optimum implementation of the present invention:
Described in specification sheets: in holding furnace to 99.7% fine aluminium, adjust temperature, make it remain on 750～800 ℃, add aluminium boron master alloy, make aluminium liquid boron-containing quantity in 0.05%～0.09% scope, stirred 2～5 fens, and static 10～20 minutes, came out of the stove, aluminium liquid flow to purification tank, use double-deck paddle---the degasification of argon bottom-blowing refining plant, argon flow amount 15～20L/min, 20PPI foam ceramic filter.700 ± 10 ℃ of teeming temperatures, 450～480 ℃ of breaking down temperature, strand speed 2.3～2.7m/min, 260～300 ℃ of closing quotation temperature, closing quotation back aluminium bar directly enters the continous way insulation kiln that the bottom is covered with track, and insulation 2h carries out self-annealing.The aluminium bar resistivity of producing can reach (2.72～2.74) * 10
-8Ω m, σ
b=100～108MPa, δ=14～20%.
Effect of the present invention is that the resistivity that makes aluminium conductor is reduced to (2.72～2.74) * 10
-8Ω m, the level of rafifinal near 99.99%, and intensity has kept the strength level of commercial-purity aluminium; The plasticity ratio commercial-purity aluminium exceeds 10～20%.Use this aluminium conductor in transmitting line, its economic benefit is mainly reflected in and reduces a large amount of electric energy losses that electrical network causes because of resistivity is too high.According to statistics, at a 100KM, on the ultra-high-tension power transmission line of 50KV, the every reduction by 1% of resistivity, the electric energy that can save every year is 45.2 ten thousand degree.The aluminium conductor replacement resistivity of producing with the technology of the present invention is international standard value 2.8264 * 10
-8The aluminium conductor of Ω m, resistivity have reduced (2～3) %, and in above-mentioned such circuit, the electric energy that can save every year is (90～135) ten thousand degree.
Claims (2)
- (1) a kind of boron that in commercial-purity aluminium, adds, and through purifying and the aluminium conductor of filtration treatment, be provided with double-deck paddle-argon bottom-blowing in its purification tank and staticize device, argon flow amount is 15～20L/min, the paddle rotating speed is 450～700r/min, and the thick 20～30PPI aluminum oxide foam ceramic filter plate of 50mm is installed in the filter vat, and it is characterized in that: the boron amount that adds in the aluminium is 0.05%～0.13%, after aluminium is rolled into bar, be incubated 1～3h down at 200～320 ℃.
- (2) according to the described aluminium conductor of claim (1), it is characterized in that: in the continuous casting and rolling process, the closing quotation temperature of control aluminium bar is at 200～320 ℃, directly puts into the insulation kiln after the closing quotation of aluminium bar or stay-warm case is incubated 1.5～3h, carries out self-annealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99104364A CN1081245C (en) | 1999-04-15 | 1999-04-15 | Preparation of boronic aluminium alloy with high conductivity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99104364A CN1081245C (en) | 1999-04-15 | 1999-04-15 | Preparation of boronic aluminium alloy with high conductivity |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1271024A true CN1271024A (en) | 2000-10-25 |
| CN1081245C CN1081245C (en) | 2002-03-20 |
Family
ID=5271657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99104364A Expired - Fee Related CN1081245C (en) | 1999-04-15 | 1999-04-15 | Preparation of boronic aluminium alloy with high conductivity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1081245C (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1300356C (en) * | 2004-12-03 | 2007-02-14 | 云南冶金集团总公司 | High conductivity aluminium base material containing rare-earth and boron and preparing method |
| CN101886198A (en) * | 2010-07-13 | 2010-11-17 | 安徽欣意电缆有限公司 | High-conductivity aluminum alloy material for cable and preparation method thereof |
| CN101345098B (en) * | 2008-08-22 | 2010-12-08 | 远东电缆有限公司 | Aluminum conductor for overhead conductor |
| CN101419849B (en) * | 2008-10-21 | 2011-03-09 | 无锡华能电缆有限公司 | High conductivity flexible aluminum wire and manufacturing method thereof |
| CN102146539A (en) * | 2011-03-18 | 2011-08-10 | 常州鸿泽澜线缆有限公司 | Aluminum alloy conductor used for high-voltage cable and preparation method thereof |
| CN102554192A (en) * | 2012-01-11 | 2012-07-11 | 沈阳铸造研究所 | Manufacturing method of highly-conductive and heat-resisting electrode cross beam component |
| CN102682872A (en) * | 2011-03-18 | 2012-09-19 | 上海电缆研究所 | Semihard aluminum wire, overhead wire and preparation method of semihard aluminum wire |
| CN102744256A (en) * | 2012-06-25 | 2012-10-24 | 江苏南瑞淮胜电缆有限公司 | Continuous casting and rolling production method for high-conductivity aluminium rod |
| CN103215477A (en) * | 2013-05-07 | 2013-07-24 | 山东大学 | Preparation method of calcium-hexaboride-reinforced aluminum matrix composite |
| US20150184272A1 (en) * | 2012-09-14 | 2015-07-02 | Beijing University Of Technology | Low cost and high strength titanium alloy and heat treatment process |
| CN104779718A (en) * | 2015-04-13 | 2015-07-15 | 湖南天能电机制造有限公司 | Super-efficient motor provided with boron aluminum alloy rotor |
| CN105671372A (en) * | 2016-01-25 | 2016-06-15 | 华北电力大学 | Duralumin conductor material with 63% IACS and preparation method thereof |
| CN109468478A (en) * | 2018-12-18 | 2019-03-15 | 云南云铝涌鑫铝业有限公司 | A kind of preparation method of aluminium ingot |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102011035A (en) * | 2010-12-04 | 2011-04-13 | 江苏南瑞淮胜电缆有限公司 | Heat-resistant all aluminum alloy conductor and manufacturing method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5922156A (en) * | 1982-07-27 | 1984-02-04 | Koito Mfg Co Ltd | Composite function device |
| DE4308612C2 (en) * | 1993-03-18 | 1999-01-07 | Erbsloeh Ag | Process for producing a material with high heat resistance from an aluminum-based alloy and using the material produced in this way |
-
1999
- 1999-04-15 CN CN99104364A patent/CN1081245C/en not_active Expired - Fee Related
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1300356C (en) * | 2004-12-03 | 2007-02-14 | 云南冶金集团总公司 | High conductivity aluminium base material containing rare-earth and boron and preparing method |
| CN101345098B (en) * | 2008-08-22 | 2010-12-08 | 远东电缆有限公司 | Aluminum conductor for overhead conductor |
| CN101419849B (en) * | 2008-10-21 | 2011-03-09 | 无锡华能电缆有限公司 | High conductivity flexible aluminum wire and manufacturing method thereof |
| CN101886198A (en) * | 2010-07-13 | 2010-11-17 | 安徽欣意电缆有限公司 | High-conductivity aluminum alloy material for cable and preparation method thereof |
| CN102146539A (en) * | 2011-03-18 | 2011-08-10 | 常州鸿泽澜线缆有限公司 | Aluminum alloy conductor used for high-voltage cable and preparation method thereof |
| CN102682872A (en) * | 2011-03-18 | 2012-09-19 | 上海电缆研究所 | Semihard aluminum wire, overhead wire and preparation method of semihard aluminum wire |
| CN102682872B (en) * | 2011-03-18 | 2014-03-26 | 上海电缆研究所 | Semihard aluminum wire, overhead wire and preparation method thereof |
| CN102554192A (en) * | 2012-01-11 | 2012-07-11 | 沈阳铸造研究所 | Manufacturing method of highly-conductive and heat-resisting electrode cross beam component |
| CN102554192B (en) * | 2012-01-11 | 2013-10-23 | 沈阳铸造研究所 | Manufacturing method of highly-conductive and heat-resisting electrode cross beam component |
| CN102744256A (en) * | 2012-06-25 | 2012-10-24 | 江苏南瑞淮胜电缆有限公司 | Continuous casting and rolling production method for high-conductivity aluminium rod |
| US9828662B2 (en) * | 2012-09-14 | 2017-11-28 | Beijing University Of Technology | Low cost and high strength titanium alloy and heat treatment process |
| US20150184272A1 (en) * | 2012-09-14 | 2015-07-02 | Beijing University Of Technology | Low cost and high strength titanium alloy and heat treatment process |
| CN103215477A (en) * | 2013-05-07 | 2013-07-24 | 山东大学 | Preparation method of calcium-hexaboride-reinforced aluminum matrix composite |
| CN103215477B (en) * | 2013-05-07 | 2015-07-08 | 山东大学 | Preparation method of calcium-hexaboride-reinforced aluminum matrix composite |
| CN104779718A (en) * | 2015-04-13 | 2015-07-15 | 湖南天能电机制造有限公司 | Super-efficient motor provided with boron aluminum alloy rotor |
| CN105671372A (en) * | 2016-01-25 | 2016-06-15 | 华北电力大学 | Duralumin conductor material with 63% IACS and preparation method thereof |
| CN105671372B (en) * | 2016-01-25 | 2017-11-28 | 华北电力大学 | A kind of duralumin conductor material of 63%IACS and preparation method thereof |
| CN109468478A (en) * | 2018-12-18 | 2019-03-15 | 云南云铝涌鑫铝业有限公司 | A kind of preparation method of aluminium ingot |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1081245C (en) | 2002-03-20 |
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Granted publication date: 20020320 Termination date: 20110415 |