CN104099499A - Manufacturing method of 6082T6 aluminum alloy profile for rescue helicopter take-off and landing platform - Google Patents
Manufacturing method of 6082T6 aluminum alloy profile for rescue helicopter take-off and landing platform Download PDFInfo
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- CN104099499A CN104099499A CN201410394174.0A CN201410394174A CN104099499A CN 104099499 A CN104099499 A CN 104099499A CN 201410394174 A CN201410394174 A CN 201410394174A CN 104099499 A CN104099499 A CN 104099499A
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Abstract
The invention belongs to the technical field of aluminum alloy materials for rescue helicopters and particularly relates to a manufacturing method of a 6082T6 aluminum alloy profile for a medical small-area high-strength rescue helicopter take-off and landing platform. By producing the aluminum alloy profile for the high-strength rescue helicopter take-off and landing platform through online quenching, various indicators of products are up to standard, the labor productivity can be improved, the costs can be saved, the order requirements of users can be met, volume production of the aluminum alloy profiles for the high-strength rescue helicopter take-off and landing platform can be achieved.
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, medical small area is gone straight up to to fall the demand of high-strength rescue helicopters landing platform aluminium alloy extrusions 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 be 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-clockly transport fast, Quick rescue condition.Landing platform material must meet the enormous impact that vertiplane moment landing brings, and meets friction, the pressure that vertiplane rotation landing produces and is exposed to for a long time in air non-corroding etc.
In view of 6082T6 aluminium alloy is one of the most complicated alloy of composition in six line aluminium alloys, main strengthening element content is higher, alloying element content is more, quenching temperature narrow range, high to solution strengthening environmental requirement, must in 30 seconds, quench and just can reach solid solution strengthening effect, therefore this class character alloy is applicable to off-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 a kind of rescue helicopters landing platform manufacture method used of the 6082T6 of being directed to aluminium alloy.
Summary of the invention
The object of the invention is, for a kind of rescue helicopters landing platform of batch production 6082T6 manufacture method of aluminium alloy extrusions is provided, can effectively solve a large amount of production, delivery problems.
Technical scheme of the present invention is:
A manufacture method for 6082T6 aluminium alloy extrusions for rescue helicopters landing platform, 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 that 1.10%～1.25%, Fe is that≤0.40%, Cu is≤0.10%, Mn is 0.8%～0.9%, Mg is that 1.05%～1.15%, Cr is that≤0.20%, Zn is≤0.15%, Ti is≤0.10%, single impurity≤0.05%, adds up to impurity≤0.15%, and all the other are Al;
B, by six line aluminium alloys circles ingot casting railway carriages, crop, back-end crop, get low power, chemical composition, cut woollen, woollen homogeneous, Heating temperature: 540-560 DEG C, insulation is 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, packs rapidly container into, on 36MN or 55MN extrusion machine, carry out 500 DEG C of extrusion temperatures, extrusion speed 4 ± 0.5m/min, quenching temperature 510-520 DEG C, quenching velocity 300-350 DEG C/point; 540 DEG C of off-line quenching temperatures, 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 c step 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 physics and chemistry testing material that timeliness is come out of the stove, the sample position that the standard for acceptance of regulation and drawing specify as agreed, gets physics and chemistry sample, after whole physics and chemistry test detections are qualified, carries out packing after 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 c step, extrusion speed 4m/min.
In described d step, 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 be controlled at national standard in reach the standard grade, avoid crossing great fluctuation process and causing that interior tissue is inhomogeneous and mechanical property scattered error is excessive due to chemical composition, main strengthening Composition Control in reach the standard grade, make mechanical performance index meet national standard, high-strength rescue helicopters landing platform qualification rate is stabilized in more than 95%; In the equal fire preparing degree of step b, the type of cooling is the air-cooled water-cooled cooling that adds, realize cooling fast, ensure at utmost solid solution of strengthening element, reduce the operation waiting time more than 24 hours, enhance productivity, and Surface of profile is processed, and rear gloss is attractive in appearance, secretly line, concealed wire of nothing, not only ensures 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 and off-line quench and relatively can reduce distortion, make extensibility between 1.0～1.2%, reduce extensibility and change the size inequality causing greatly, ensure that in lasting supply of material process, size scattered error is little, ensure the dimensional fits with other materials, press quenching can reduce take the lead, hanging, off-line quench heat up, insulation equal time, every batch was reduced activity time more than 10 hours; By above measure, can realize the press quenching of the high-strength rescue helicopters landing of 6082T6 platform aluminium alloy extrusions, make tensile strength >=310MPa, yield strength >=260MPa, elongation >=10%, Brinell hardness >=82HB.
The high-strength rescue helicopters landing of the technical program platform aluminium alloy profile on line quenching is produced, and meeting under standard-required, raises labour productivity, cost-saving, meets user's demand of ordering goods.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 of casting is six line aluminium alloys circles ingot castings, and charge calculation is taking the center line of step a as basis, to guarantee that ingot casting Composition Control is in standard range; After thawing, once skim, once skim after smelting furnace refining, once skim after holding furnace refining; A degasification after a degasification, holding furnace refining after smelting furnace refining, carries out a getter degasification again after holding furnace refining.Specification is Φ 320mm × 4000mm, and when melting six line aluminium alloy circle ingot casting, Si is that 1.20%, Fe is that≤0.20%, Cu is≤0.10%, Mn is that 0.85%, Mg is that 1.09%, Cr is that≤0.20%, Zn is≤0.15%, Ti is≤0.10%, and single impurity≤0.05% adds up to impurity≤0.15%, and all the other are Al;
B, specification is Φ 320mm × 4000mm six line aluminium alloys circles ingot casting railway carriages, crop, back-end crop, gets low power, chemical composition, cut woollen, woollen specification is Φ 320mm × 1200mm; Woollen homogeneous, Heating temperature: 550 DEG C, be 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, pack rapidly container into, on 36MN extrusion machine, push 500 DEG C of extrusion temperatures, extrusion speed 4m/min, 520 DEG C of quenching temperatures, 350 DEG C/point of quenching velocity; 540 DEG C of off-line quenching temperatures, 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: 170 DEG C of aging temps, metal heat preservation 8 hours, goes out aging oven.
E, the physics and chemistry testing material that timeliness is come out of the stove, the sample position that the standard for acceptance of regulation and drawing specify as agreed, get physics and chemistry sample, after whole physics and chemistry test detections are 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 that adopt in step a are Φ 380mm × 4000mm, refining degree 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 are identical with embodiment 1.
Embodiment 3:
Present embodiment as different from Example 1, woollen homogeneous, Heating temperature: 560 DEG C, insulation is more than 9 hours, and low power checks oxide film, checks compound segregation, meets the requirement of stair oxidation film, and other steps and parameter are identical with embodiment 1.
Embodiment 4:
Present embodiment as different from Example 1, is simulated off-line quenching environmental improvement press quenching device, and 530 DEG C of Heating temperatures, pack rapidly container into, extrusion speed 4m/min, 520 DEG C of temperature outs, 520 DEG C of quenching temperatures, 350 DEG C/point of quenching velocity.Spray quenching, other steps and parameter are 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, 155 DEG C of aging temps, metal heat preservation 14 hours, goes out aging oven, other steps and parameter are identical with embodiment 1.
Embodiment 6:
As different from Example 1, low power checks oxide film and compound segregation to present embodiment, and other steps and parameter are identical with embodiment 1.
The high-strength rescue helicopters landing of batch production provided by the invention platform aluminium alloy extrusions manufacture method, can make production efficiency improve 21%～25%.
Claims (9)
1. a manufacture method for 6082T6 aluminium alloy extrusions for rescue helicopters landing platform, 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 that 1.10%～1.25%, Fe is that≤0.40%, Cu is≤0.10%, Mn is 0.8%～0.9%, Mg is that 1.05%～1.15%, Cr is that≤0.20%, Zn is≤0.15%, Ti is≤0.10%, single impurity≤0.05%, adds up to impurity≤0.15%, and all the other are Al;
B, by six line aluminium alloys circles ingot casting railway carriages, crop, back-end crop, get low power, chemical composition, cut woollen, woollen homogeneous, Heating temperature: 540-560 DEG C, insulation is 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, packs rapidly container into, on 36MN or 55MN extrusion machine, carry out 500 DEG C of extrusion temperatures, extrusion speed 4 ± 0.5m/min, quenching temperature 510-520 DEG C, quenching velocity 300-350 DEG C/point; 540 DEG C of off-line quenching temperatures, 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 c step 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 physics and chemistry testing material that timeliness is come out of the stove, the sample position that the standard for acceptance of regulation and drawing specify as agreed, gets physics and chemistry sample, after whole physics and chemistry test detections are qualified, carries out packing after surface inspection, dimension inspection, passed examination.
2. the manufacture method of 6082T6 aluminium alloy extrusions for rescue helicopters landing platform 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 6082T6 aluminium alloy extrusions for rescue helicopters landing platform 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 6082T6 aluminium alloy extrusions for rescue helicopters landing platform according to claim 1, is characterized in that, in described b step, woollen specification is: Φ 320mm × 1200mm.
5. the manufacture method of 6082T6 aluminium alloy extrusions for rescue helicopters landing platform according to claim 1, is characterized in that, in described b step, woollen specification is: Φ 380mm × 1450mm.
6. the manufacture method of 6082T6 aluminium alloy extrusions for rescue helicopters landing platform according to claim 1, is characterized in that, in described b step, and Heating temperature: 550 DEG C.
7. the manufacture method of 6082T6 aluminium alloy extrusions for rescue helicopters landing platform according to claim 1, is characterized in that, in described c step, and extrusion speed 4m/min.
8. the manufacture method of 6082T6 aluminium alloy extrusions for rescue helicopters landing platform according to claim 1, is characterized in that, in described d step, and extensibility 1.6%.
9. the manufacture method of 6082T6 aluminium alloy extrusions for rescue helicopters landing platform 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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Cited By (6)
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| CN105821262A (en) * | 2016-03-28 | 2016-08-03 | 中国铁道科学研究院铁道建筑研究所 | Sliding alloy material and alloy sliding structural component special for support and manufacturing method of alloy sliding structural component |
| 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 |
| CN108300907A (en) * | 2018-02-10 | 2018-07-20 | 沈阳航空航天大学 | A kind of Al-Mn-Si-Mg alloy materials 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 |
| CN109652688A (en) * | 2019-02-21 | 2019-04-19 | 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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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN108300907A (en) * | 2018-02-10 | 2018-07-20 | 沈阳航空航天大学 | A kind of Al-Mn-Si-Mg alloy materials and preparation method thereof |
| 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 |
| CN109652688A (en) * | 2019-02-21 | 2019-04-19 | 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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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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