CN103060633A - A manufacturing method for an aluminum alloy with high conductivity - Google Patents
A manufacturing method for an aluminum alloy with high conductivity Download PDFInfo
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- CN103060633A CN103060633A CN2012105823970A CN201210582397A CN103060633A CN 103060633 A CN103060633 A CN 103060633A CN 2012105823970 A CN2012105823970 A CN 2012105823970A CN 201210582397 A CN201210582397 A CN 201210582397A CN 103060633 A CN103060633 A CN 103060633A
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Abstract
The present invention provides a manufacturing method for an aluminum alloy with high conductivity. The manufacturing method comprises the following steps which are successively performed according to the known production process, of: preparing materials, installing a furnace, melting, adding intermediate alloy, primary refining, secondary refining, drossing, sampling for pre-analysis, adjusting composition, standing, casting rod, sawing, homogenization treating, rod heating, extruding, on-line solid solution, sawing, artificial aging and packaging. In the step of preparing materials, the weight percentage of raw materials are as follows: 0.62-0.66% of Mg, 0.42-0.46% of Si, and the balance being luminum ingots with an aluminum content greater than or equal to 99.7%; and between the steps of primary refining and secondary refining, 0.03-0.06% of boron, and 0.03-0.06% of cerium by weight percentages are added in; the online solid solution temperature is 520-540 DEG C; and the artificial aging temperature is 230 +/- 3 DEG C which is kept for 3 hours.
Description
Technical field
The present invention relates to a kind of aluminium alloy manufacture method, particularly a kind of high-conductivity aluminum alloy manufacture method.
Background technology
Development along with market economy, aluminum alloy materials plays a part very important in China and even World Foundry industry, and extensively applied to automobile, aviation and electron trade, particularly in recent years, the appearance of " aluminium is for copper " phenomenon, also allow the novel aluminum alloy material become the new lover of cable industry, fast development along with these relevant industries, the development of aluminum alloy materials has also formed an optimum industrial chain, and the advantages such as lightweight also will allow aluminum alloy materials more and more enter more industry and substitute material in the past.This wherein, 6063-T5 extruding aluminium alloy material is widely used in industrial every field because of its good mechanical property and processing characteristics, its production technique generally comprises following step:
A, batching: virgin aluminium ingot (aluminium content 〉=99.7%) and master alloy magnesium, silicon are prepared burden by the proportioning of setting;
B, shove charge: aluminium ingot is put in the smelting furnace;
C, fusing: start smelting furnace, aluminium ingot is heated to the melting state, Heating temperature is 750～760 ℃;
D, add master alloy in stove: the alloying constituent Mg in will preparing burden, Si put in the smelting furnace;
E, initial refining: adopt liquid nitrogen+refining agent, 740～750 ℃ of temperature, 12～15 minutes time.
F, secondary refining: adopt liquid nitrogen+refining agent, 730～740 ℃ of temperature, 10～12 minutes time.
G, skim: in smelting furnace, add slagging agent, then be filled with nitrogen and stir, at last with the processing of skimming of high temperature resistant rake alloy liquid level;
H, sampling preanalysis: alloy liquid sampling analysis, check each alloying constituent and foreign matter content;
I, composition adjustment: water down according to assay interpolation alloying element or with virgin aluminium ingot, make chemical ingredients requirement up to specification;
J, leave standstill: stop to stir smelting furnace, aluminium alloy was left standstill 30 minutes;
K, casting pole: will leave standstill aluminium alloy after the processing becomes certain specification by die casting pole;
M, check sawing: casting rod respectively cut end to end the 100mm process residue, and the surface quality of check aluminium.
N, macrostructure check: cut end to end aluminium bar and respectively cut again 30mm and make low power and chemical ingredients test sample, check inner grain structure, subsurface defect and chemical ingredients.
O, homogenizing process: adopts 570 ℃ of (furnace temperature)+6h(insulations) homogenization treatment, eliminate inhomogeneous because of the microstructure and composition of casting formation of aluminium bar.
P, pole heating: aluminium bar is heated to 490～500 ℃, simultaneously extrusion mould and ingot-containing tube is heated to 450 ℃ and 400 ℃.
Q, extruding: the aluminium bar and the mould that heat are pushed at single action horizontal extrusion press, produce squeezing prod.
R, on-line solution: the product temperature that squeezes out adopts strong wind cooling (being on-line solution) immediately at 520～540 ℃,
S, sawing frame up: sawing becomes product length and puts the timeliness special frame into.
T, artificial aging: aluminum alloy materials is placed in the aging oven, be warming up to 195 ± 3
oC, and be incubated 3 hours;
U, the examination and test of products: get aluminium alloy extrusions that ageing treatment crosses and test and analyze its physicals;
V, packing: the alloy product that makes is packed by certain specification.
Its performance index of aluminium alloy by above-mentioned production technique manufacturing are tensile strength Rm 〉=160Mpa, yield strength Rp0.2 〉=110Mpa, unit elongation A50 〉=6%, electric conductivity 〉=52.6IACS; This performance is electric conductivity or on the low side particularly, uses at electrician's industrial circle and is limited to.Therefore, be necessary to develop on 6063-T5 extruding aluminium alloy basis a kind of aluminum alloy materials of high conductivity to enlarge it in the application of electronics industry.
Summary of the invention
The purpose of this invention is to provide a kind of aluminium alloy manufacture method with high conductivity.
The technical solution adopted in the present invention is such: a kind of high-conductivity aluminum alloy manufacture method, comprise the following operation of carrying out successively according to known production technique: batching, shove charge, fusing, add master alloy, initial refining, secondary refining, skim, sampling preanalysis, composition is adjusted, leave standstill, the pole casting, sawing, homogenizing is processed, the pole heating, extruding, on-line solution, sawing, artificial aging and packing, in the described burden process, the weight percent of raw material is: Mg0.62～0.66%, Si0.42～0.46%, surplus are the aluminium ingot of aluminium content 〉=99.7%; The boron 0.03～0.06% and the cerium 0.03～0.06% that add following weight per-cent between described initial refining and the secondary refining operation; Described on-line solution temperature is 520～540 ℃; Described artificially aged temperature is 230 ± 3
oC is incubated 3 hours.
By adopting the aforementioned techniques scheme, the invention has the beneficial effects as follows: except when optimizing 6063-T5 main alloy strengthening element magnesium (Mg) and silicon (Si) proportioning, trace adds a kind of non-metallic element boron (B) and a kind of thulium cerium (Ce), change the weave construction of alloy and distribution and the form of second-phase, reduced strengthening phase (Mg
2Si) impact of alloy conductivity, thus the alloy conductive performance improved; The present invention adopts the high-temperature aging novel process in addition, distribution, the form of further optimized alloy weave construction and second-phase, thereby under the prerequisite of the mechanical property that does not reduce 6063-T5 extruding aluminium alloy material, improve the electric conductivity 13.7% of material, enlarged it in electrician's industrial circle range of application.
Embodiment
Background technology of the present invention partly describes the manufacturing process of known 6063 aluminium alloys in detail, and the present invention is the improvement of having made following three aspects: on the basis of this manufacturing process:
1, the material mixture ratio optimization of Mg, Si;
2, add two kinds of trace elements;
3, improve thermal treatment process;
Specifically: in known following production technique: batching, shove charge, melt, add master alloy, initial refining, secondary refining, the preanalysis of skimming, take a sample, composition adjustment, leave standstill, pole casting, sawing, homogenizing processing, pole heating, extruding, on-line solution, sawing, artificial aging and packing, in described burden process, the weight percent of raw material is optimized for: Mg0.62～0.66%, Si0.42～0.46%, surplus is the aluminium ingot of aluminium content 〉=99.7%, control simultaneously Fe content less than 0.15%, Ti content less than 0.04%; Add weight percent between described initial refining and the secondary refining operation and be 0.03～0.06% boron and 0.03～0.06% cerium; Described on-line solution temperature is 520～540 ℃; Described artificially aged temperature is 230 ± 3
oC is incubated 3 hours.
As a specific embodiment, described Mg weight percent content is that 0.63%, Si weight percent content is 0.45%, and boron weight percent content 0.04%, cerium weight percent content 0.04%, solid solubility temperature are set as 525 ℃, and the artificial aging temperature is made as 230
oC.
Above-mentioned Mg, Si, B, Ce are feasible in span separately, and solid solubility temperature and artificial aging temperature can both realize originally making eye bright in span.
Claims (1)
1. high-conductivity aluminum alloy manufacture method, comprise the following operation of carrying out successively according to known production technique: batching, shove charge, melt, add master alloy, initial refining, secondary refining, the preanalysis of skimming, take a sample, composition adjustment, leave standstill, pole casting, sawing, homogenizing processing, pole heating, extruding, on-line solution, sawing, artificial aging and packing, it is characterized in that: in the described burden process, the weight percent of raw material is: Mg0.62～0.66%, Si0.42～0.46%, surplus are the aluminium ingot of aluminium content 〉=99.7%; The boron 0.03～0.06% and the cerium 0.03～0.06% that add following weight per-cent between described initial refining and the secondary refining operation; Described on-line solution temperature is 520～540 ℃; Described artificially aged temperature is 230 ± 3
oC is incubated 3 hours.
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| CN2012105823970A CN103060633A (en) | 2012-12-28 | 2012-12-28 | A manufacturing method for an aluminum alloy with high conductivity |
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| CN2012105823970A CN103060633A (en) | 2012-12-28 | 2012-12-28 | A manufacturing method for an aluminum alloy with high conductivity |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103266236A (en) * | 2013-05-17 | 2013-08-28 | 山东创新金属科技股份有限公司 | Production process of high-quality aluminum alloy material |
| CN110872665A (en) * | 2018-08-30 | 2020-03-10 | 昭和电工株式会社 | Al-Mg-Si alloy plate |
| CN111961890A (en) * | 2020-09-09 | 2020-11-20 | 四川三星新材料科技股份有限公司 | Production process method of section bar for high-conductivity and high-strength aluminum alloy electrical equipment |
| CN111957760A (en) * | 2020-08-11 | 2020-11-20 | 昆山市超群金属制品有限公司 | Production process of hard alloy aluminum bar |
| CN113122758A (en) * | 2021-03-16 | 2021-07-16 | 江阴沐祥节能装饰工程有限公司 | Off-road vehicle luggage rack aluminum profile and processing technology thereof |
| CN116287817A (en) * | 2023-02-09 | 2023-06-23 | 江苏同生特钢制造有限公司 | Cerium-containing high-strength alloy ingot and processing technology thereof |
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| CN101121978A (en) * | 2007-09-29 | 2008-02-13 | 深圳市富亿通精密科技有限公司 | High electric-conductivity heat-conductivity high-strength aluminum alloy material, preparation method and application thereof |
| CN101570838A (en) * | 2009-06-15 | 2009-11-04 | 江苏工业学院 | Thermal treatment method for aluminum alloy |
| CN101724771A (en) * | 2009-12-25 | 2010-06-09 | 天津锐新电子热传技术股份有限公司 | Al-Mg-Si aluminium alloy material for pressed module heat radiator and machining process thereof |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101121978A (en) * | 2007-09-29 | 2008-02-13 | 深圳市富亿通精密科技有限公司 | High electric-conductivity heat-conductivity high-strength aluminum alloy material, preparation method and application thereof |
| CN101570838A (en) * | 2009-06-15 | 2009-11-04 | 江苏工业学院 | Thermal treatment method for aluminum alloy |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103266236A (en) * | 2013-05-17 | 2013-08-28 | 山东创新金属科技股份有限公司 | Production process of high-quality aluminum alloy material |
| CN103266236B (en) * | 2013-05-17 | 2015-08-05 | 山东创新金属科技股份有限公司 | A kind of high-quality aluminum alloy material producing process |
| CN110872665A (en) * | 2018-08-30 | 2020-03-10 | 昭和电工株式会社 | Al-Mg-Si alloy plate |
| CN110872665B (en) * | 2018-08-30 | 2022-03-25 | 堺铝业株式会社 | Al-Mg-Si alloy plate |
| CN111957760A (en) * | 2020-08-11 | 2020-11-20 | 昆山市超群金属制品有限公司 | Production process of hard alloy aluminum bar |
| CN111961890A (en) * | 2020-09-09 | 2020-11-20 | 四川三星新材料科技股份有限公司 | Production process method of section bar for high-conductivity and high-strength aluminum alloy electrical equipment |
| CN113122758A (en) * | 2021-03-16 | 2021-07-16 | 江阴沐祥节能装饰工程有限公司 | Off-road vehicle luggage rack aluminum profile and processing technology thereof |
| CN116287817A (en) * | 2023-02-09 | 2023-06-23 | 江苏同生特钢制造有限公司 | Cerium-containing high-strength alloy ingot and processing technology thereof |
| CN116287817B (en) * | 2023-02-09 | 2023-10-13 | 江苏同生高品合金科技有限公司 | Cerium-containing high-strength alloy ingot and processing technology thereof |
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Application publication date: 20130424 |