CN104099499B - A kind of manufacture method of rescue helicopters landing platform 6082T6 aluminium alloy extrusions - Google Patents
A kind of manufacture method of rescue helicopters landing platform 6082T6 aluminium alloy extrusions Download PDFInfo
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- CN104099499B CN104099499B CN201410394174.0A CN201410394174A CN104099499B CN 104099499 B CN104099499 B CN 104099499B CN 201410394174 A CN201410394174 A CN 201410394174A CN 104099499 B CN104099499 B CN 104099499B
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Abstract
The invention belongs to the technical field of rescue helicopters aluminum alloy materials, be specifically related to a kind of medical small area and go straight up to the manufacture method of falling high-strength rescue helicopters landing platform 6082T6 aluminium alloy extrusions.Press quenching produces high-strength rescue helicopters landing platform aluminium alloy extrusions, and product property indices reaches standard, raises labour productivity, cost-saving, meets user and to order goods demand, realizes the batch production of high-strength rescue helicopters landing platform aluminium alloy extrusions.
Description
Technical field
The invention belongs to the technical field of rescue helicopters aluminum alloy materials, be specifically related to a kind of medical small area and go straight up to the manufacture method of falling high-strength rescue helicopters landing platform 6082T6 aluminium alloy extrusions.
Background technology
Along with the fast development of worldwide machinery manufacturing industry technology, new technology, novel material, novel process, product innovation emerges in an endless stream, the demand of falling high-strength rescue helicopters landing platform aluminium alloy extrusions gone straight up to medical small area increasing, high-strength medical small area is gone straight up to and is fallen rescue helicopters landing platform aluminium alloy extrusions must to possess quality light, intensity is high, plasticity is good, specific tenacity is high, thin-walled, complicated large section, wear-resisting, the features such as easy installation, can at Highrise buildings top layer, high mountain mountain top small area plane, the installations such as col small area plane, realize all standing, round-the-clock quick transport, Quick rescue condition.Landing platform material must meet the vertiplane moment enormous impact that brings of landing, meets vertiplane and rotates friction, pressure that landing produces and expose non-corroding etc. in atmosphere for a long time.
In view of 6082T6 aluminium alloy is one of alloy that in six line aluminium alloys, composition is the most complicated, main strengthening element content is higher, alloying element content is more, quenching temperature narrow range, high to solution strengthening environmental requirement, must quench in 30 seconds and just can reach solid solution strengthening effect, therefore this kind of character alloy is applicable to out-line quenching.For 6082T6 aluminium alloy rescue helicopters landing platform, 6082T6 aluminium alloy extrusions is not suitable for current preparation method, therefore, is badly in need of the manufacture method that a kind of rescue helicopters landing platform being directed to 6082T6 aluminium alloy is used.
Summary of the invention
The object of the invention is, in order to provide the manufacture method producing a kind of rescue helicopters landing platform 6082T6 aluminium alloy extrusions in batches, can effectively solve a large amount of production, delivery problems.
Technical scheme of the present invention is:
A manufacture method for rescue helicopters landing platform 6082T6 aluminium alloy extrusions, step is as follows:
The aluminium alloy of a, casting is six line aluminium alloy circle ingot castings, in aluminium alloy cast ingot used, the mass percent Si of element is 1.10% ~ 1.25%, Fe be≤0.40%, Cu is≤0.10%, Mn is 0.8% ~ 0.9%, Mg is 1.05% ~ 1.15%, Cr be≤0.20%, Zn is≤0.15%, Ti is≤0.10%, single impurity≤0.05%, add up to impurity≤0.15%, all the other are Al;
B, by six line aluminium alloys circle ingot casting railway carriages, crop, back-end crop, get low power, chemical composition, cut woollen, woollen homogeneous, Heating temperature: 540-560 DEG C, be incubated more than 9 hours, the type of cooling: air-cooled and water-cooled cooling;
C, the aluminium alloy woollen of preparation is heated to 500-540 DEG C, loads container rapidly, 36MN or 55MN extrusion machine carries out, extrusion temperature 500 DEG C, extrusion speed 4 ± 0.5m/min, quenching temperature 510-520 DEG C, quenching velocity 300-350 DEG C/minute; Out-line quenching temperature 540 DEG C, soaking time 5 hours, cold quenching, extensibility 1.5 ~ 3.0%;
D, the high-strength rescue helicopters landing platform section bar tension force stretching that step c is obtained, extensibility 1.5-2.0%, then timeliness: aging temp 150-195 DEG C, metal heat preservation 8-14 hour, goes out aging oven;
E, the Physicochemical test material of timeliness being come out of the stove, the sample position that the standard for acceptance specified as agreed and drawing specify, gets physics and chemistry sample, after whole Physicochemical test detection is qualified, packs after carrying out surface inspection, dimension inspection, passed examination.
In described a step, the specification of aluminium alloy round cast ingot is Φ 320mm × 4000mm.
In described a step, the specification of aluminium alloy round cast ingot is Φ 380mm × 4000mm.
In described b step, woollen specification is: Φ 320mm × 1200mm.
In described b step, woollen specification is: Φ 380mm × 1450mm.
In described b step, Heating temperature: 550 DEG C.
In described step c, extrusion speed 4m/min.
In described Step d, extensibility 1.6%.
Beneficial effect of the present invention is:
In step a, chemical composition is within the scope of national standard, high-strength rescue helicopters landing platform aluminium alloy extrusions cast component scope is narrowed, and casting range controls to reach the standard grade in national standard, avoid crossing great fluctuation process due to chemical composition and cause that interior tissue is uneven and mechanical property scattered error is excessive, main strengthening Composition Control in reach the standard grade, make mechanical performance index meet national standard, make high-strength rescue helicopters landing platform qualification rate be stabilized in more than 95%; In step b equal fire preparing degree, the type of cooling is air-cooledly add water-cooled cooling, realize cooling fast, ensure strengthening element at utmost solid solution, reduce the operation waiting time more than 24 hours, enhance productivity, and after Surface of profile process gloss attractive in appearance, without dark line, concealed wire, not only ensure use properties but also improve aesthetical perception; The extrusion speed of step c can ensure temperature out and quenching effect, guarantee mechanical property is qualified, press quenching compares with out-line quenching can reduce distortion, make extensibility between 1.0 ~ 1.2%, reduce extensibility and change the size inequality caused greatly, ensure to continue size scattered error in supply of material process little, ensure the dimensional fits with other materials, press quenching can reduce take the lead, hang, out-line quenching heats up, insulation equal time, often criticize and reduce activity time more than 10 hours; By above measure, the press quenching of 6082T6 high-strength rescue helicopters landing platform aluminium alloy extrusions can be realized, make tensile strength >=310MPa, yield strength >=260MPa, elongation >=10%, Brinell hardness >=82HB.
The technical program high-strength rescue helicopters landing platform aluminium alloy profile on line quenching is produced, and meeting under standard-required, raises labour productivity, cost-saving, meets user and to order goods demand.In a word, the invention provides the high-strength rescue helicopters landing platform aluminium alloy extrusions manufacture method of batch production, make production efficiency improve 21% ~ 25%.
Embodiment
Below by specific embodiment, technical scheme of the present invention is described in detail.
Embodiment 1,
A. the aluminium alloy cast be six line aluminium alloys circle ingot castings, charge calculation based on the center line of step a, to guarantee that ingot casting Composition Control is in standard range; Once skim after thawing, once skim after smelting furnace refining, once skim after holding furnace refining; After smelting furnace refining, a degasification after a degasification, holding furnace refining, carries out a getter degasification after holding furnace refining again.Specification is Φ 320mm × 4000mm, and during melting six line aluminium alloy circle ingot casting, Si be 1.20%, Fe is≤0.20%, Cu is≤0.10%, Mn is 0.85%, Mg be 1.09%, Cr be≤0.20%, Zn is≤0.15%, Ti is≤0.10%, single impurity≤0.05%, and add up to impurity≤0.15%, all the other are Al;
B, be Φ 320mm × 4000mm six line aluminium alloy circle ingot casting railway carriage by specification, crop, back-end crop, get low power, chemical composition, cut woollen, woollen specification is Φ 320mm × 1200mm; Woollen homogeneous, Heating temperature: 550 DEG C, is incubated 10 hours, the type of cooling: air-cooled+water-cooled cooling;
C, by preparation No. six aluminium alloy round cast ingot woollens be heated to 530 DEG C, load container rapidly, 36MN extrusion machine extrude, extrusion temperature 500 DEG C, extrusion speed 4m/min, quenching temperature 520 DEG C, quenching velocity 350 DEG C/minute; Out-line quenching temperature 540 DEG C, soaking time 5 hours, cold quenching, extensibility 1.5 ~ 3.0%;
D, by high-strength rescue helicopters landing platform aluminium alloy extrusions tension force stretching, extensibility 1.6%, then timeliness: aging temp 170 DEG C, metal heat preservation 8 hours, goes out aging oven.
E, the Physicochemical test material that timeliness is come out of the stove, the sample position that the standard for acceptance specified as agreed and drawing specify, get physics and chemistry sample, after whole Physicochemical test detection is qualified, by the high-strength rescue helicopters landing platform aluminium alloy extrusions packaging of the inspection of high-strength rescue helicopters landing platform aluminium alloy section surface, dimension inspection, passed examination.
Embodiment 2:
Present embodiment as different from Example 1, No. six aluminium alloy round cast ingot specifications adopted in step a are Φ 380mm × 4000mm, refinement reaches the requirement of stair oxidation film, there is no metallic compound segregation, Mg:Si=1.73 ~ 1.4:1 in chemical composition, other steps and parameter identical with embodiment 1.
Embodiment 3:
Present embodiment as different from Example 1, woollen homogeneous, Heating temperature: 560 DEG C, is incubated more than 9 hours, and low power checks oxide film, checks compound segregation, meets the requirement of stair oxidation film, other steps and parameter identical with embodiment 1.
Embodiment 4:
As different from Example 1, simulation out-line quenching environmental improvement press quenching device, Heating temperature 530 DEG C, loads container rapidly to present embodiment, extrusion speed 4m/min, temperature out 520 DEG C, quenching temperature 520 DEG C, quenching velocity 350 DEG C/minute.Spray quenching, other steps and parameter identical with embodiment 1.
Embodiment 5:
Present embodiment as different from Example 1, by high-strength rescue helicopters landing platform aluminium alloy extrusions tension force stretching, extensibility 1.6%, then timeliness, aging temp 155 DEG C, metal heat preservation 14 hours, goes out aging oven, other steps and parameter identical with embodiment 1.
Embodiment 6:
As different from Example 1, low power checks oxide film and compound segregation to present embodiment, other steps and parameter identical with embodiment 1.
Batch production provided by the invention high-strength rescue helicopters landing platform aluminium alloy extrusions manufacture method, can make production efficiency improve 21% ~ 25%.
Claims (9)
1. a rescue helicopters landing platform manufacture method for 6082T6 aluminium alloy extrusions, step is as follows:
The aluminium alloy of a, casting is six line aluminium alloy circle ingot castings, in aluminium alloy cast ingot used, the mass percent Si of element is 1.10% ~ 1.25%, Fe be≤0.40%, Cu is≤0.10%, Mn is 0.8% ~ 0.9%, Mg is 1.05% ~ 1.15%, Cr be≤0.20%, Zn is≤0.15%, Ti is≤0.10%, single impurity≤0.05%, add up to impurity≤0.15%, all the other are Al;
B, by six line aluminium alloys circle ingot casting railway carriages, crop, back-end crop, get low power, chemical composition, cut woollen, woollen homogeneous, Heating temperature: 540-560 DEG C, be incubated more than 9 hours, the type of cooling: air-cooled and water-cooled cooling;
C, the aluminium alloy woollen of preparation is heated to 500-540 DEG C, loads container rapidly, 36MN or 55MN extrusion machine carries out, extrusion temperature 500 DEG C, extrusion speed 4 ± 0.5m/min, quenching temperature 510-520 DEG C, quenching velocity 300-350 DEG C/minute; Out-line quenching temperature 540 DEG C, soaking time 5 hours, cold quenching, extensibility 1.5 ~ 3.0%;
D, the high-strength rescue helicopters landing platform section bar tension force stretching that step c is obtained, extensibility 1.5-2.0%, then timeliness: aging temp 150-195 DEG C, metal heat preservation 8-14 hour, goes out aging oven;
E, the Physicochemical test material of timeliness being come out of the stove, the sample position that the standard for acceptance specified as agreed and drawing specify, gets physics and chemistry sample, after whole Physicochemical test detection is qualified, packs after carrying out surface inspection, dimension inspection, passed examination.
2. the manufacture method of rescue helicopters landing platform 6082T6 aluminium alloy extrusions according to claim 1, is characterized in that, in described a step, the specification of aluminium alloy round cast ingot is Φ 320mm × 4000mm.
3. the manufacture method of rescue helicopters landing platform 6082T6 aluminium alloy extrusions according to claim 1, is characterized in that, in described a step, the specification of aluminium alloy round cast ingot is Φ 380mm × 4000mm.
4. the manufacture method of rescue helicopters landing platform 6082T6 aluminium alloy extrusions according to claim 1, it is characterized in that, in described b step, woollen specification is: Φ 320mm × 1200mm.
5. the manufacture method of rescue helicopters landing platform 6082T6 aluminium alloy extrusions according to claim 1, it is characterized in that, in described b step, woollen specification is: Φ 380mm × 1450mm.
6. the manufacture method of rescue helicopters landing platform 6082T6 aluminium alloy extrusions according to claim 1, is characterized in that, in described b step, and Heating temperature: 550 DEG C.
7. the manufacture method of rescue helicopters landing platform 6082T6 aluminium alloy extrusions according to claim 1, is characterized in that, in described step c, and extrusion speed 4m/min.
8. the manufacture method of rescue helicopters landing platform 6082T6 aluminium alloy extrusions according to claim 1, is characterized in that, in described Step d, and extensibility 1.6%.
9. the manufacture method of rescue helicopters landing platform 6082T6 aluminium alloy extrusions according to claim 1, is characterized in that, the tensile strength >=310MPa of products obtained therefrom, yield strength >=260MPa, elongation >=10%, Brinell hardness >=82HB.
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| CN105821262B (en) * | 2016-03-28 | 2018-05-18 | 中国铁道科学研究院铁道建筑研究所 | Bearing is special to slide alloy material, alloy slide construction part and its manufacturing method |
| CN106424494A (en) * | 2016-10-13 | 2017-02-22 | 山东裕航特种合金装备有限公司 | Extrusion production technology for coarse grain zone-free forging blank for knuckle forge piece of saloon car |
| CN108300907B (en) * | 2018-02-10 | 2020-07-21 | 沈阳航空航天大学 | Al-Mn-Si-Mg alloy material and preparation method thereof |
| CN109280822A (en) * | 2018-11-29 | 2019-01-29 | 天津忠旺铝业有限公司 | A kind of rail traffic 6082G aluminum alloy plate materials and its processing technology |
| CN109652688B (en) * | 2019-02-21 | 2020-12-08 | 苏州铭德铝业有限公司 | Production method of 6082 aluminum alloy section |
| CN111690846A (en) * | 2020-07-10 | 2020-09-22 | 辽宁忠旺集团有限公司 | Production process of superhard 6026 aluminum alloy profile |
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| KR100600157B1 (en) * | 2004-03-22 | 2006-07-12 | 현대자동차주식회사 | Manufacturing method of Al-Mg-Si alloy sheet which can flat hemming |
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| CN102492877B (en) * | 2011-12-31 | 2013-06-19 | 辽宁忠旺集团有限公司 | Extruding processing technology of aluminium alloy tubing with large diameter |
| CN103602863B (en) * | 2013-11-29 | 2015-09-02 | 辽宁忠旺集团有限公司 | A kind of technique of producing Thin-walled Aluminum conjunction tubing |
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Denomination of invention: A manufacturing method of 6082T6 aluminum alloy profile for rescue helicopter takeoff and landing platform Effective date of registration: 20220309 Granted publication date: 20160413 Pledgee: China Xinda Asset Management Co.,Ltd. Shandong Branch Pledgor: SHANDONG YUHANG SPECIAL ALLOY EQUIPMENT CO.,LTD. Registration number: Y2022980002321 |
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