CN104209716A - Production method of high-conductivity aluminium alloy sections - Google Patents

Production method of high-conductivity aluminium alloy sections Download PDF

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Publication number
CN104209716A
CN104209716A CN201410492421.0A CN201410492421A CN104209716A CN 104209716 A CN104209716 A CN 104209716A CN 201410492421 A CN201410492421 A CN 201410492421A CN 104209716 A CN104209716 A CN 104209716A
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CN
China
Prior art keywords
aluminium alloy
alloy extrusions
production
conductivity aluminium
conductivity
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CN201410492421.0A
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Chinese (zh)
Inventor
王明星
王明亮
王呈刚
张建忠
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山东裕航特种合金装备有限公司
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Priority to CN201410492421.0A priority Critical patent/CN104209716A/en
Publication of CN104209716A publication Critical patent/CN104209716A/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C21/00Alloys based on aluminium
    • C22C21/06Alloys based on aluminium with magnesium as the next major constituent
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22FCHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/04Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
    • C22F1/047Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with magnesium as the next major constituent

Abstract

The invention relates to a preparation process of aluminium alloy, in particular to a production method of high-conductivity aluminium alloy sections. The production method of the high-conductivity aluminium alloy sections is implemented by the following steps of ingot casting of cast aluminium alloy, on-line quenching, cooling, stretching, aging treating, sectional material sampling, checking, harding of section materials and packaging. The production method of the high-conductivity aluminium alloy sections has the beneficial effects that through adding a small number of Cu and coordinating the on-line quenching process with appropriate temperature, the strength of the alloy is greatly improved; the extrusion process is controlled, the extrusion temperature, the extrusion speed, the mold temperature and the ingot casting temperature are reasonably controlled, strong wind fog cooling and appropriate aging temperature and aging time are coordinated, so that the alloy has higher strength, and meanwhile has favorable electrical conductivity.

Description

A kind of production method of high conductivity aluminium alloy extrusions
Technical field
The present invention relates to the preparation technology of aluminium alloy, more specifically by the production method that is a kind of high conductivity aluminium alloy extrusions.
Background technology
Conductor rail is subway, the important motivity transmission part of bullet train, its Main Function is transmission current, therefore require to have good electric conductivity, using more alloy is at present 6060-T6 alloy, in view of the main intensified element of 6063T6 aluminium alloy few, alloy is simple, so strengthening effect is bad, mechanical property is not high, and the impurity in material can cause defect to microstructure, the conductance of material is affected, therefore need to be by adjusting to the control of composition and to extrusion process and press quenching and Technology for Heating Processing, make intensity and the conductance of section bar all comparatively good.
Summary of the invention
Goal of the invention of the present invention is for weak point of the prior art, and all good aluminium alloy extrusions of a kind of intensity and conductance are provided.
The present invention is achieved by the following technical solutions:
A production method for high conductivity aluminium alloy extrusions, realizes according to the following steps:
One, Birmasil ingot casting, in aluminium alloy cast ingot used, the mass percent Si of element is that 0.40%~0.50%, Fe is that 0.10%~0.35%, Cu is 0.05%~0.09%, Mn is 0.05%~0.09%, Mg is 0. 50%~0.55%, and Zn is that≤0. 10%, Ti is≤0. 10%, Cr is≤0. 10%, single impurity≤0.05%, adds up to impurity≤0.15%, and all the other are Al;
Two, the extruding of high conductivity aluminium alloy extrusions press quenching;
Three, the cooling of high conductivity aluminium alloy extrusions, stretching and Ageing Treatment;
Four, high conductivity aluminium alloy extrusions sampling, inspection;
Five, high conductivity aluminium alloy extrusions is beaten hardness, packing.
The extruding of high conductivity aluminium alloy extrusions press quenching in above-mentioned steps two, the technical parameter of extruding is: mold temperature 455-485 ℃, ingot casting temperature 470-490 ℃, recipient temperature 420-470 ℃, extrusion speed 3-3.6 ± 0.5m/min.
Above-mentioned press quenching, hardening heat 420-450 ± 5 ℃, quenching velocity 300-320 ℃/minute.
Above-mentioned cooling adopts the cooling of high wind mist.
The percentage elongation of above-mentioned stretching is 1-3%.
195 ℃ of above-mentioned aging temps, metal heat preservation 12 hours, goes out aging furnace.
High conductivity aluminium alloy extrusions in above-mentioned steps four, sample position sampling, the inspection of the acceptance criteria requiring as agreed and drawing regulation, property indices meets European standard.
High conductivity aluminium alloy extrusions in above-mentioned steps five, the acceptance criteria requiring as agreed and the examination of drawing regulation, surface inspection, dimensional gaughing, packing delivery.
The invention has the beneficial effects as follows:
(1) the present invention passes through to add a small amount of Cu, and coordinates the press quenching technique of preference temperature, has greatly improved the intensity of alloy;
(2) the present invention is again by the control to extrusion process, by reasonable control extrusion temperature, extrusion speed, mold temperature and ingot casting temperature, coordinate high wind fog cooling cooling and suitable aging temp and aging time, make alloy of the present invention when having higher-strength, also there is good electric conductivity.
The specific embodiment
Below in conjunction with specific embodiment, the present invention will be further described, so that those skilled in the art can better understand the present invention, but therefore do not limit the present invention.
Embodiment 1
Si is that 0.40%%, Fe is that 0.10%%, Cu is that 0.05%%, Mn is that 0.05%%, Mg is that 0. 50%%, Zn is that≤0. 10%, Ti is that≤0. 10%, Cr is≤0. 10%, and single impurity≤0.05% adds up to impurity≤0.15%, and all the other are Al;
The technical parameter of extruding is: 455 ℃ of mold temperatures, 470 ℃ of ingot casting temperature, 420 ℃ of recipient temperature, extrusion speed 3 ± 0.5m/min.
Press quenching, 420 ± 5 ℃ of hardening heats, 300 ℃/minute of quenching velocity;
Cooling adopts the cooling of high wind mist.
The percentage elongation stretching is 1.5%.
195 ℃ of aging temps, metal heat preservation 12 hours, goes out aging furnace.
Embodiment 2
Si is that 0.45%, Fe is that 0.15%, Cu is that 0.07%, Mn is that 0.07%, Mg is that 0. 53%, Zn is that≤0. 10%, Ti is that≤0. 10%, Cr is≤0. 10%, and single impurity≤0.05% adds up to impurity≤0.15%, and all the other are Al;
480 ℃ of mold temperatures, 490 ℃ of ingot casting temperature, 460 ℃ of recipient temperature, extrusion speed 3.5 ± 0.5m/min.
Press quenching, 435 ± 5 ℃ of hardening heats, 315 ℃/minute of quenching velocity.
Cooling adopts the cooling of high wind mist.
The percentage elongation stretching is 1.5%.
195 ℃ of aging temps, metal heat preservation 12 hours, goes out aging furnace.
Embodiment 3
Si is that 0.45%, Fe is that 0.15%, Cu is that 0.07%, Mn is that 0.07%, Mg is that 0. 53%, Zn is that≤0. 10%, Ti is that≤0. 10%, Cr is≤0. 10%, and single impurity≤0.05% adds up to impurity≤0.15%, and all the other are Al;
485 ℃ of mold temperatures, 490 ℃ of ingot casting temperature, 470 ℃ of recipient temperature, extrusion speed 3.6 ± 0.5m/min.
Press quenching, 435 ± 5 ℃ of hardening heats, 315 ℃/minute of quenching velocity.
Cooling adopts the cooling of high wind mist.
The percentage elongation stretching is 1.5%.
195 ℃ of aging temps, metal heat preservation 12 hours, goes out aging furnace.
Embodiment 4
Si is that 0.45%, Fe is that 0.15%, Cu is that 0.07%, Mn is that 0.07%, Mg is that 0. 53%, Zn is that≤0. 10%, Ti is that≤0. 10%, Cr is≤0. 10%, and single impurity≤0.05% adds up to impurity≤0.15%, and all the other are Al;
485 ℃ of mold temperatures, 490 ℃ of ingot casting temperature, 470 ℃ of recipient temperature, extrusion speed 3.6 ± 0.5m/min.
Press quenching, 435 ± 5 ℃ of hardening heats, 315 ℃/minute of quenching velocity.
Cooling adopts the cooling of high wind mist.
The percentage elongation stretching is 1.5%.
190 ℃ of aging temps, metal heat preservation 12 hours, goes out aging furnace.
Si is that 0.45%, Fe is that 0.15%, Cu is that 0.07%, Mn is that 0.07%, Mg is that 0. 53%, Zn is that≤0. 10%, Ti is that≤0. 10%, Cr is≤0. 10%, and single impurity≤0.05% adds up to impurity≤0.15%, and all the other are Al;
485 ℃ of mold temperatures, 490 ℃ of ingot casting temperature, 470 ℃ of recipient temperature, extrusion speed 3.6 ± 0.5m/min.
Press quenching, 435 ± 5 ℃ of hardening heats, 315 ℃/minute of quenching velocity.
Cooling adopts the cooling of high wind mist.
The percentage elongation stretching is 1.5%.
195 ℃ of aging temps, metal heat preservation 11 hours, goes out aging furnace.
Embodiment 5
Si is that 0.50%, Fe is that 0.30%, Cu is that 0.08%, Mn is that 0.08%, Mg is that 0. 55%, Zn is that≤0. 10%, Ti is that≤0. 10%, Cr is≤0. 10%, and single impurity≤0.05% adds up to impurity≤0.15%, and all the other are Al;
485 ℃ of mold temperatures, 490 ℃ of ingot casting temperature, 470 ℃ of recipient temperature, extrusion speed 3.6 ± 0.5m/min.
Press quenching, 435 ± 5 ℃ of hardening heats, 315 ℃/minute of quenching velocity.
Cooling adopts the cooling of high wind mist.
The percentage elongation stretching is 1.5%.
195 ℃ of aging temps, metal heat preservation 12 hours, goes out aging furnace.
Embodiment 6
Si is that 0.45%, Fe is that 0.15%, Cu is that 0.07%, Mn is that 0.07%, Mg is that 0. 53%, Zn is that≤0. 10%, Ti is that≤0. 10%, Cr is≤0. 10%, and single impurity≤0.05% adds up to impurity≤0.15%, and all the other are Al;
485 ℃ of mold temperatures, 490 ℃ of ingot casting temperature, 470 ℃ of recipient temperature, extrusion speed 3.6 ± 0.5m/min.
Press quenching, 410 ± 5 ℃ of hardening heats, 290 ℃/minute of quenching velocity.
Cooling adopts the cooling of high wind mist.
The percentage elongation stretching is 1.5%.
195 ℃ of aging temps, metal heat preservation 12 hours, goes out aging furnace.
Embodiment 1-6 gained alloy profile mechanical property and electrical conductivity see the following form.

Claims (8)

1. a production method for high conductivity aluminium alloy extrusions, is characterised in that: described production method realizes according to the following steps:
One, Birmasil ingot casting, in aluminium alloy cast ingot used, the mass percent Si of element is that 0.40%~0.50%, Fe is that 0.10%~0.35%, Cu is 0.05%~0.09%, Mn is 0.05%~0.09%, Mg is 0. 50%~0.55%, and Zn is that≤0. 10%, Ti is≤0. 10%, Cr is≤0. 10%, single impurity≤0.05%, adds up to impurity≤0.15%, and all the other are Al;
Two, the extruding of high conductivity aluminium alloy extrusions press quenching;
Three, the cooling of high conductivity aluminium alloy extrusions, stretching and Ageing Treatment;
Four, high conductivity aluminium alloy extrusions sampling, inspection;
Five, high conductivity aluminium alloy extrusions is beaten hardness, packing.
2. the production method of a kind of high conductivity aluminium alloy extrusions according to claim 1, it is characterized in that: in step 2, push high conductivity aluminium alloy extrusions, the technical parameter of extruding is: mold temperature 455-485 ℃, ingot casting temperature 470-490 ℃, recipient temperature 420-470 ℃, extrusion speed 3-3.6 ± 0.5m/min.
3. the production method of a kind of high conductivity aluminium alloy extrusions according to claim 1, is characterized in that: described press quenching, hardening heat 420-450 ± 5 ℃, quenching velocity 300-320 ℃/minute.
4. the production method of a kind of high conductivity aluminium alloy extrusions according to claim 1, is characterized in that: described cooling adopts the cooling of high wind mist.
5. the production method of a kind of high conductivity aluminium alloy extrusions according to claim 1, is characterized in that: the percentage elongation of described stretching is 1-3%.
6. the production method of a kind of high conductivity aluminium alloy extrusions according to claim 1, is characterized in that: 195 ℃ of described aging temps, metal heat preservation 12 hours, goes out aging furnace.
7. the production method of a kind of high conductivity aluminium alloy extrusions according to claim 1, it is characterized in that: high conductivity aluminium alloy extrusions in step 4, the sample position sampling of the acceptance criteria requiring as agreed and drawing regulation, inspection, property indices meets European standard.
8. the production method of a kind of high conductivity aluminium alloy extrusions according to claim 1, it is characterized in that: high conductivity aluminium alloy extrusions in step 5, the acceptance criteria requiring as agreed and the examination of drawing regulation, surface inspection, dimensional gaughing, packing delivery.
CN201410492421.0A 2014-09-24 2014-09-24 Production method of high-conductivity aluminium alloy sections CN104209716A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104624684A (en) * 2015-01-09 2015-05-20 广西南南铝加工有限公司 Extrusion production process of Al-Zn-Mg alloy profile for high-speed rail car body
CN105369080A (en) * 2015-10-13 2016-03-02 国家电网公司 Method for preparing high-strength aluminum alloy wire for novel energy-saving wire
CN106854708A (en) * 2017-01-11 2017-06-16 广东华昌铝厂有限公司 The production method of conductor rail aluminium alloy extrusions
CN107475637A (en) * 2017-08-09 2017-12-15 四川科力特硬质合金股份有限公司 A kind of conductor rail and preparation method thereof and super stainless steel powder
CN108315675A (en) * 2018-02-28 2018-07-24 山东南山铝业股份有限公司 A kind of aluminium alloy extrusions and its manufacturing method
CN108950322A (en) * 2018-07-19 2018-12-07 中铝萨帕特种铝材(重庆)有限公司 A kind of rail transit vehicle body thin-walled 6 is aluminum profile and preparation method thereof
CN111575546A (en) * 2020-06-01 2020-08-25 山东裕航特种合金装备有限公司 Production method of track panel induction plate for high-speed normally-conducting magnetic suspension train

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JP2004027253A (en) * 2002-06-21 2004-01-29 Furukawa Sky Kk Aluminum alloy sheet for molding, and method of producing the same
CN101805837A (en) * 2010-04-27 2010-08-18 辽宁忠旺集团有限公司 Manufacture method of aluminum alloy section for track traffic conductor rail
CN102329999A (en) * 2011-07-30 2012-01-25 湖南晟通科技集团有限公司 Manufacture method of electroconductive aluminum alloy section
CN104029608A (en) * 2014-06-25 2014-09-10 江苏佳铝实业股份有限公司 Coated steel aluminum composite conductor rail and manufacturing method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004027253A (en) * 2002-06-21 2004-01-29 Furukawa Sky Kk Aluminum alloy sheet for molding, and method of producing the same
CN101805837A (en) * 2010-04-27 2010-08-18 辽宁忠旺集团有限公司 Manufacture method of aluminum alloy section for track traffic conductor rail
CN102329999A (en) * 2011-07-30 2012-01-25 湖南晟通科技集团有限公司 Manufacture method of electroconductive aluminum alloy section
CN104029608A (en) * 2014-06-25 2014-09-10 江苏佳铝实业股份有限公司 Coated steel aluminum composite conductor rail and manufacturing method thereof

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104624684A (en) * 2015-01-09 2015-05-20 广西南南铝加工有限公司 Extrusion production process of Al-Zn-Mg alloy profile for high-speed rail car body
CN105369080A (en) * 2015-10-13 2016-03-02 国家电网公司 Method for preparing high-strength aluminum alloy wire for novel energy-saving wire
CN105369080B (en) * 2015-10-13 2017-11-07 国家电网公司 A kind of energy-saving wire high strength alumin ium alloy silk preparation method
CN106854708A (en) * 2017-01-11 2017-06-16 广东华昌铝厂有限公司 The production method of conductor rail aluminium alloy extrusions
CN107475637A (en) * 2017-08-09 2017-12-15 四川科力特硬质合金股份有限公司 A kind of conductor rail and preparation method thereof and super stainless steel powder
CN107475637B (en) * 2017-08-09 2019-07-09 四川科力特硬质合金股份有限公司 A kind of conductor rail and preparation method thereof
CN108315675A (en) * 2018-02-28 2018-07-24 山东南山铝业股份有限公司 A kind of aluminium alloy extrusions and its manufacturing method
CN108950322A (en) * 2018-07-19 2018-12-07 中铝萨帕特种铝材(重庆)有限公司 A kind of rail transit vehicle body thin-walled 6 is aluminum profile and preparation method thereof
CN111575546A (en) * 2020-06-01 2020-08-25 山东裕航特种合金装备有限公司 Production method of track panel induction plate for high-speed normally-conducting magnetic suspension train

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