CN106086550A - The production technology of 6061 aluminium alloy stretch bending section bars - Google Patents
The production technology of 6061 aluminium alloy stretch bending section bars Download PDFInfo
- Publication number
- CN106086550A CN106086550A CN201610579999.9A CN201610579999A CN106086550A CN 106086550 A CN106086550 A CN 106086550A CN 201610579999 A CN201610579999 A CN 201610579999A CN 106086550 A CN106086550 A CN 106086550A
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- Prior art keywords
- stretch bending
- section bar
- aluminium alloy
- implant
- production technology
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
- C22C21/08—Alloys based on aluminium with magnesium as the next major constituent with silicon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
- C22F1/047—Changing 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Extrusion Of Metal (AREA)
- Materials For Medical Uses (AREA)
Abstract
The invention discloses the production technology of a kind of 6061 aluminium alloy stretch bending section bars, belong to aluminum alloy processing technology field, including prepared by raw material, section bar produce, install the control respectively of the operation such as implant and stretch bending.The present invention by the improvement of Cr content and take high temperature and high speed extruding Water cooling section bar production method, improve the interior tissue of material, add the uniformity of crystal grain, it is made to be easily formed equiax crystal tiny, uniform, thus improve stretch bending performance and profiled surface quality, fundamentally solve aluminium alloy extrusions stretch bending processing rear surface defect problem.
Description
Technical field
The invention belongs to aluminum alloy processing technology field, be specifically related to the production work of a kind of 6061 aluminium alloy stretch bending section bars
Skill.
Background technology
Aluminum alloy materials because of appearance looks elegant, corrosion-resistant, easy-formation, density are little etc., and good characteristic is widely used in each neck
Territory.Domestic made Small car and the electric motor coach in outlet Europe, gradually adopt aluminum alloy materials.But, aluminium alloy extrusions is in the later stage
Being difficult to ensure that surface quality in stretch-bending molding process, surface is easily generated Pericarpium Citri tangerinae, resilience, necking down, even cracking phenomena, makes finished product report
Useless rate is high, production efficiency is low, and ultimately resulting in production cost increases and the lengthening of production cycle, and affects service level and client
Satisfaction.
Therefore, it is necessary to existing process is improved, propose a kind of new production technology, material can be improved
Stretch bending performance so that it is both can guarantee that the structural strength of material, can improve again the quality of section bar profiled surface, fundamentally solve aluminum
Alloy profile stretch bending processing rear surface defect problem.
Summary of the invention
In view of this, it is an object of the invention to provide the production technology of a kind of 6061 aluminium alloy stretch bending section bars, can avoid existing
There is the technology aluminium alloy stretch bending section bar problem that surface quality is poor, scrappage is high present in the stretch-bending molding process.
It is an object of the invention to be realized by below scheme:
The production technology of a kind of 6061 aluminium alloy stretch bending section bars, including preparing raw material, section bar produces, installs implant
And the control of stretch bending operation, concrete control is as follows:
1) mass percent of 6061 aluminum alloy cast bar material each components: Si:0.45-0.63%, Fe :≤0.35%, Cu:
0.10-0.24%, Mn :≤0.20%, Mg:0.75-0.95%, Cr :≤0.25%, AL-surplus；
2) state modulator when section bar produces: casting rod temperature 500 ± 10 DEG C；Mold temperature 400-500 DEG C；Recipient temperature
420-440℃；Extrusion speed 6-10m/min；Hardening heat 520-560 DEG C；Extensibility controls at 0.5%-1.2%；Wear water-cooled
But；
3) selection of implant: the hollow position filling steel plate of section bar is added duroplasts as implant；
4) control of stretch bending process: prestretching force controls the 85-95% in section bar yield point.
Further, with the interval time implemented before stretch bending operation less than 24h after section bar has produced.
The invention has the beneficial effects as follows:
The present invention by the improvement of Cr content and take high temperature and high speed extruding Water cooling section bar production method, improve
The interior tissue of material, adds the uniformity of crystal grain so that it is be easily formed equiax crystal tiny, uniform, thus improve section bar and draw
Curved performance and section bar profiled surface quality, fundamentally solve aluminium alloy extrusions stretch bending processing rear surface defect problem.
Other advantages, target and the feature of the present invention will be illustrated to a certain extent in the following description, and
And to a certain extent, will be apparent to those skilled in the art based on to investigating hereafter, or can
To be instructed from the practice of the present invention.The target of the present invention and other advantages can be realized by description below and
Obtain.
Detailed description of the invention
Should be appreciated that preferred embodiment is only for the explanation present invention rather than in order to limit the scope of the invention.
The production technology of a kind of 6061 aluminium alloy stretch bending section bars, including preparing raw material, section bar produces, installs implant
And the control of stretch bending operation, concrete control is as follows:
1) mass percent of 6061 aluminum alloy cast bar material each components: Si:0.45-0.63%, Fe :≤0.35%, Cu:
0.10-0.24%, Mn :≤0.20%, Mg:0.75-0.95%, Cr :≤0.25%, AL-surplus；Control Cr unit in alloying element
Element percentage composition≤0.25%, the Cr value of state's standard is 0.04-0.35, is conducive to increasing the uniformity of crystal grain, is easily formed equiax crystal,
Thus improve the stretch bending performance of section bar.
2) state modulator when section bar produces: casting rod temperature 500 ± 10 DEG C；Mold temperature 400-500 DEG C；Recipient temperature
420-440℃；Extrusion speed 6-10m/min；Hardening heat 520-560 DEG C；Extensibility controls at 0.5%-1.2%；Wear water-cooled
But, above-mentioned high temperature and high speed extruding Water cooling method can improve section bar quenching intensity, section bar in extrusion process in can increase,
During Water cooling, crystal grain generation perfect recrystallization, owing to quenching intensity is high, crystal grain is difficult to grow up, and majority is tiny, uniform etc.
Axialite, beneficially bending and forming.
3) selection of implant: the hollow position filling steel plate of section bar is added duroplasts as implant, it is ensured that section bar
Angle of bend, flatness, the integrity of section bar inwall, the application of implant, stretch bending angle not only can be made to meet client
Requirement, within flatness can be controlled in 1mm, and also convenient to operate, after bending forming, implant is prone to extract.
4) control of stretch bending process: prestretching force controls the 85-95% in section bar yield point, can avoid because of prestretching force mistake
The big stretch bending defect produced, can further improve stretch bending quality.
In the present embodiment, section bar should be less than 24h with the interval time implementing stretch bending operation after having produced, it is to avoid section bar stops
Put overlong time and cause its tensile strength to improve, affect stretch bending quality, thus cause and scrap.
After the product stretch bending of the present embodiment, mechanical property is as shown in the table:
And mechanical performance index during 6061 material T4 state is: yield strength: 110MPa；Tensile strength: 180MPa；Disconnected
Rear elongation percentage: 15%, the result of upper table is far above this index, and after showing to carry out stretch bending operation, the mechanical property of section bar keeps good
Good, and can meet customer need.
The present embodiment by the improvement of Cr content and take high temperature and high speed extruding Water cooling section bar production method, change
It is apt to the interior tissue of material, has added the uniformity of crystal grain so that it is be easily formed equiax crystal tiny, uniform, thus improve section bar
Stretch bending performance, the profiled surface quality of section bar is increased dramatically, and fundamentally solves aluminium alloy extrusions stretch bending processing rear surface
Defect problem, meanwhile, the application makes Surface of profile quality obtain further also by implant, and experiment shows, molded surface
Flatness can be controlled in 1mm.
Finally illustrating, above example is only in order to illustrate technical scheme and unrestricted, although with reference to relatively
The present invention has been described in detail by good embodiment, it will be understood by those within the art that, can be to the skill of the present invention
Art scheme is modified or equivalent, and without deviating from objective and the scope of the technical program, it all should be contained in the present invention
Right in the middle of.
Claims (2)
1. the production technology of an aluminium alloy stretch bending section bar, it is characterised in that: include prepared by raw material, section bar produces,
Installing implant and the control of stretch bending operation, concrete control is as follows:
1) mass percent of the 6061 each compositions of aluminum alloy cast bar material: Si:0.45-0.63%, Fe :≤0.35%, Cu:
0.10-0.24%, Mn :≤0.20%, Mg:0.75-0.95%, Cr :≤0.25%, AL-surplus；
2) state modulator when section bar produces: casting rod temperature 500 ± 10 DEG C；Mold temperature 400-500 DEG C；Recipient temperature 420-
440℃；Extrusion speed 6-10m/min；Hardening heat 520-560 DEG C；Extensibility controls at 0.5%-1.2%；Water cooling；
3) selection of implant: the hollow position filling steel plate of section bar is added duroplasts as implant；
4) control of stretch bending process: prestretching force controls the 85-95% in section bar yield point.
The production technology of 6061 aluminium alloy stretch bending section bars the most according to claim 1, it is characterised in that: section bar has produced
Afterwards with the interval time implemented before stretch bending operation less than 24h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610579999.9A CN106086550A (en) | 2016-07-21 | 2016-07-21 | The production technology of 6061 aluminium alloy stretch bending section bars |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610579999.9A CN106086550A (en) | 2016-07-21 | 2016-07-21 | The production technology of 6061 aluminium alloy stretch bending section bars |
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| CN106086550A true CN106086550A (en) | 2016-11-09 |
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| CN201610579999.9A Pending CN106086550A (en) | 2016-07-21 | 2016-07-21 | The production technology of 6061 aluminium alloy stretch bending section bars |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106917018A (en) * | 2017-04-04 | 2017-07-04 | 上饶市鸿基铝业有限公司 | A kind of shower house extraordinary aluminium section bar and production technology |
| CN107686916A (en) * | 2017-09-19 | 2018-02-13 | 山东友升铝业有限公司 | A kind of vehicle energy absorption box processing method |
| CN108043898A (en) * | 2018-01-23 | 2018-05-18 | 辽宁忠旺集团有限公司 | A kind of manufacturing method and product of Integral aluminum alloy hinge section bar |
| CN111349831A (en) * | 2020-02-23 | 2020-06-30 | 广东吉源铝业有限公司 | Production process of 6061 aluminum alloy stretch-bending section |
| CN113201658A (en) * | 2021-04-16 | 2021-08-03 | 池州市九华明坤铝业有限公司 | Processing technology of high-quality aluminum alloy industrial section |
| CN114107749A (en) * | 2020-08-26 | 2022-03-01 | 宝山钢铁股份有限公司 | High-performance novel 6XXX aluminum alloy thin strip and preparation method thereof |
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| CN103264707A (en) * | 2013-05-27 | 2013-08-28 | 倪慨宇 | Rail train component manufactured through stretch bending technology and manufacturing method thereof |
| CN103861912A (en) * | 2012-12-13 | 2014-06-18 | 北京有色金属研究总院 | Aluminum alloy pipe bend forming method |
| CN104561696A (en) * | 2014-12-22 | 2015-04-29 | 河南明泰铝业股份有限公司 | 5083 aluminum alloy plate for high-speed rail and production method thereof |
| CN105256193A (en) * | 2015-11-30 | 2016-01-20 | 辽宁忠旺集团有限公司 | Process for avoiding coarse-grain rings of 6061 aluminum alloy bars and rods |
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2016
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Patent Citations (4)
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| CN103861912A (en) * | 2012-12-13 | 2014-06-18 | 北京有色金属研究总院 | Aluminum alloy pipe bend forming method |
| CN103264707A (en) * | 2013-05-27 | 2013-08-28 | 倪慨宇 | Rail train component manufactured through stretch bending technology and manufacturing method thereof |
| CN104561696A (en) * | 2014-12-22 | 2015-04-29 | 河南明泰铝业股份有限公司 | 5083 aluminum alloy plate for high-speed rail and production method thereof |
| CN105256193A (en) * | 2015-11-30 | 2016-01-20 | 辽宁忠旺集团有限公司 | Process for avoiding coarse-grain rings of 6061 aluminum alloy bars and rods |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106917018A (en) * | 2017-04-04 | 2017-07-04 | 上饶市鸿基铝业有限公司 | A kind of shower house extraordinary aluminium section bar and production technology |
| CN107686916A (en) * | 2017-09-19 | 2018-02-13 | 山东友升铝业有限公司 | A kind of vehicle energy absorption box processing method |
| CN107686916B (en) * | 2017-09-19 | 2019-10-18 | 山东友升铝业有限公司 | A kind of vehicle energy absorption box processing method |
| CN108043898A (en) * | 2018-01-23 | 2018-05-18 | 辽宁忠旺集团有限公司 | A kind of manufacturing method and product of Integral aluminum alloy hinge section bar |
| CN111349831A (en) * | 2020-02-23 | 2020-06-30 | 广东吉源铝业有限公司 | Production process of 6061 aluminum alloy stretch-bending section |
| CN114107749A (en) * | 2020-08-26 | 2022-03-01 | 宝山钢铁股份有限公司 | High-performance novel 6XXX aluminum alloy thin strip and preparation method thereof |
| CN113201658A (en) * | 2021-04-16 | 2021-08-03 | 池州市九华明坤铝业有限公司 | Processing technology of high-quality aluminum alloy industrial section |
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Application publication date: 20161109 |