CN100560764C - Special purpose superplasticity plate and manufacture method thereof - Google Patents
Special purpose superplasticity plate and manufacture method thereof Download PDFInfo
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- CN100560764C CN100560764C CNB200510009802XA CN200510009802A CN100560764C CN 100560764 C CN100560764 C CN 100560764C CN B200510009802X A CNB200510009802X A CN B200510009802XA CN 200510009802 A CN200510009802 A CN 200510009802A CN 100560764 C CN100560764 C CN 100560764C
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Abstract
Special purpose superplasticity plate and preparation method thereof, existing commercial aluminum alloy, after processing, being processed into section bar, crystal grain all can not be enough thin, and wait a poor performance, can't satisfy the desired fine grained texture of material superplastic ability condition.Special purpose superplasticity plate, its composition comprises: aluminium is characterized in that: the parts by weight of element are aluminium 100, zinc 5.2-6.2 in the described special purpose superplasticity plate, magnesium 1.9-2.6, copper 1.2-1.9, chromium 0.18-0.25, manganese are less than 0.06, and titanium is less than 0.06.The manufacture method of this plate, its process comprises: melting aluminium material, casting, hot rolling, solid solution, rolling again.This product is used to make complex-shaped, and the component of the various aerospace flight vehicles that the integration degree is high also can be widely used in covil construction such as airport top ceiling, decorate with fields such as raised tables.
Description
Technical field:
The present invention relates to a kind of special purpose superplasticity plate and manufacture method thereof of aluminium alloy class.
Background technology:
Existing commercial aluminum alloy, after processing, being processed into section bar, crystal grain all can not be enough thin, and wait a poor performance, can't satisfy the desired fine grained texture of material superplastic ability condition.
Summary of the invention:
The purpose of this invention is to provide having of a kind of special purpose super plasticizing deformability sheet material and manufacture method thereof, to satisfy special requirements such as aerospace.
Above-mentioned purpose realizes by following technical scheme:
Special purpose superplasticity plate, its composition comprises: aluminium, the parts by weight of element are aluminium 100, zinc 5.2-6.2 in the described special purpose superplasticity plate, magnesium 1.9-2.6, copper 1.2-1.9, chromium 0.18-0.25, manganese are less than 0.06, and titanium is less than 0.06.
The special purpose superplasticity board fabrication method, its process comprises: melting aluminium material, casting, hot rolling, solid solution, rolling again, and:
A. in described fusion process, after aluminium begins to be molten into melt, add copper and zinc, add magnesium when reaching 740 ℃, the qualified back refining of composition detection 10 minutes, static 20 minutes after-filtration are also cast;
B. described smelting temperature is 700-750 ℃, refining temperature 730-750 ℃, and hot-rolled temperature 360-410 ℃, 350 ℃ of described rolling again warm-rolling temperature, the deflection of warm-rolling is controlled at 55-65%.
Above-mentioned special purpose superplasticity board fabrication method, the speed per minute 50-55 millimeter of described casting; Casting temp 690-710 ℃, every square metre of 6.8-10.9 newton of hydraulic pressure.
Above-mentioned special purpose superplasticity board fabrication method, described melt adopts three-stage filtration, promptly adopts glass wool cloth to filter, filteringly feeding the line filtration again of argon gas refining melt simultaneously with ceramic plate, filtering with ceramic filter in flow table in chute.
Above-mentioned special purpose superplasticity board fabrication method should be with the ingot casting even heating before carrying out described hot rolling, and the processing condition of soaking are in 24 hours 465 ℃.Carry out the ingot casting sawing then, mill face, erosion is milled, 360-410 ℃ of hot rolling technology condition/5-8 hour.
Above-mentioned special purpose superplasticity board fabrication method, the treatment temp 480-490 of described solid solution ℃ following 2-3 hour; Solid solution slow cooling speed of cooling per hour 30-35 ℃ carry out described warm-rolling to 350 ℃.
Above-mentioned special purpose superplasticity board fabrication method also comprises:
Step b is described rollingly again to comprise that described warm-rolling and commutation are cold rolling, promptly changes 90 degree directions with warm-rolling and carries out cold rollingly, and Deformation control is at 60-70%; Be that recrystallize is handled the 20-30 branch under 490-500 ℃ the condition in temperature then; Carrying out two-stage time effect again handles: 100 ℃/0.5 hour, and 180 ℃/3 hours.
This technical scheme has following beneficial effect:
1. the product that adopts alloy ingredient of the present invention and method to make has obtained the superfine equi-axed crystal, can satisfy super requirement of moulding for material, through check, the plasticizing unit elongation of product of the present invention is the highest can to reach 800%, grain fineness number waits a performance good less than 12um.
2. this product is owing to have high super plastic deformation ability, can be used to make the component of the various space flight and aviation aircraft of complex-shaped or integration, also can be widely used in covil construction such as airport top ceiling, decorate with fields such as raised tables, compare with the product of making by mechanical workout, metallographic structure is good, materials are few, and processing charges is cheap, no waste pollution.
3. method of the present invention makes common commercial aluminum alloy possess super plasticizing capacity, and technology of the present invention is simple, and industrial being easy to realized, do not need to increase any specific equipment in this type, and investment cycle is short.
The specific embodiment of the present invention:
Embodiment 1:
Special purpose superplasticity plate, its composition comprises: aluminium, contain zinc 5.2-6.2 in the alloy of the described aluminium that contains per hundred parts of weight, magnesium 1.9-2.6, copper 1.2-1.9, chromium 0.18-0.25, manganese are less than 0.06, and titanium is less than 0.06.
This special purpose superplasticity board fabrication method, its process comprises: melting aluminium material, casting, hot rolling, solid solution, rolling again, and:
In described fusion process, after aluminium begins to be molten into melt, add electrolytic copper and zinc ingot metal but can not expose liquid level, add magnesium when reaching 740 ℃, fully stir back sampling real-time analysis, can add grain-refining agent after composition detection is qualified, add conventional refining agent and carry out refining, refining 10 minutes, casting after static then 20 minutes; Before the casting melt is filtered, can adopt the mode of three-stage filtration.
Described melt three-stage filtration, promptly in chute, adopt glass wool cloth to carry out that one-level is filtered and then with filter the road reproduce filtration promptly with ceramic plate filtering feed simultaneously argon gas refining melt as cascade filtration, in flow table, be three-stage filtration more at last with the ceramic filter melt filtration.
Described smelting temperature is 700-750 ℃, refining temperature 730-750 ℃, and hot-rolled temperature 360-410 ℃, 350 ℃ of warm-rolling temperature, the deflection of warm-rolling is controlled at 55-65%.The speed per minute 50-55 millimeter of described casting; Casting temp 690-710 ℃, every square metre of 6.8-10.9 newton of hydraulic pressure.
Embodiment 2:
Embodiment 1 described this special purpose superplasticity board fabrication method is the method that is rolled into slab, and be preferably in should be with the ingot casting even heating before the hot rolling, and the processing condition of soaking are in 24 hours 465 ℃.Carry out the ingot casting sawing then, mill face, erosion is milled, 360-410 ℃ of hot rolling technology condition/5-8 hour.
Embodiment 3:
Embodiment 1 and embodiment 2 finish the method that is rolled into slab, if be rolled into the super thin plate of moulding plate, also should:
A. carry out solution treatment, the treatment temp 480-490 of described solid solution ℃/2-3 hour; Per hour 30-35 ℃ to 350 ℃ of solid solution slow cooling speed of cooling carried out described warm-rolling;
B. the temperature of warm-rolling is 350 ℃, can adopt the rolling mode of cooling, and deflection is between 55-65%;
C. it is cold rolling to commutate, and promptly changes 90 degree directions with warm-rolling and carries out cold rollingly, and deflection is controlled at 60-70%;
D. recrystallize is handled, 490-500 ℃/20-30 minute;
E. two-stage time effect is handled: 100 ℃/0.5 hour, and 180 ℃/3 hours.
This product is by the melting to alloy, and casting casts out 300 * 1000 square millimeters square ingot casting, is rolled into slab then, and again through solution treatment, solid solution postcooling to 350 ℃ carries out warm-rolling, and the deflection of warm-rolling is controlled at 55-65%.Finally make the super plate of moulding.During sheet material 1.2mm-1.5mm of the present invention, grain fineness number≤12mm, vertically 〉=450%, laterally 〉=350%, the hypervelocity plate is handled the horizontal Rm (MPa) 〉=515 in back, Rpo.2 (MPa) 〉=440 through solid solution, recrystallize and double aging under the hypervelocity condition.
Claims (10)
1. special purpose superplasticity plate, its composition comprises: aluminium is characterized in that: the parts by weight of element are aluminium 100, zinc 5.2-6.2 in the described special purpose superplasticity plate, magnesium 1.9-2.6, copper 1.2-1.9, chromium 0.18-0.25, manganese are less than 0.06, and titanium is less than 0.06.
2. special purpose superplasticity board fabrication method as claimed in claim 1, its process comprises: melting aluminium material, casting, hot rolling, solid solution, rolling again, it is characterized in that:
A. in described fusion process, after aluminium begins to be molten into melt, add copper and zinc, add magnesium when reaching 740 ℃, the qualified back refining of composition detection 10 minutes, static 20 minutes after-filtration are also cast;
B. described smelting temperature is 700-750 ℃, refining temperature 730-750 ℃, and hot-rolled temperature 360-410 ℃, 350 ℃ of described rolling again warm-rolling temperature, the deflection of warm-rolling is controlled at 55-65%.
3. special purpose superplasticity board fabrication method according to claim 2 is characterized in that: the speed per minute 50-55 millimeter of described casting; Casting temp 690-710 ℃, every square metre of 6.8-10.9 newton of hydraulic pressure.
4. according to claim 2 or 3 described special purpose superplasticity board fabrication methods, it is characterized in that: described melt adopts three-stage filtration, promptly adopts glass wool cloth to filter, filteringly feeding argon gas refining melt on-line filtration simultaneously with ceramic plate, filtering with ceramic filter in flow table in chute.
5. according to claim 2 or 3 described special purpose superplasticity board fabrication methods, it is characterized in that: should be before carrying out described hot rolling with the ingot casting even heating, the processing condition of soaking are in 24 hours 465 ℃.Carry out the ingot casting sawing then, mill face, erosion is milled, 360-410 ℃ of hot rolling technology condition/5-8 hour.
6. according to claim 2 or 3 described special purpose superplasticity board fabrication methods, it is characterized in that: the treatment temp 480-490 of described solid solution ℃ following 2-3 hour; Solid solution slow cooling speed of cooling per hour 30-35 ℃ carry out described warm-rolling to 350 ℃.
7. special purpose superplasticity board fabrication method according to claim 4 is characterized in that: the treatment temp 480-490 of described solid solution ℃ following 2-3 hour; Solid solution slow cooling speed of cooling per hour 30-35 ℃ carry out described warm-rolling to 350 ℃.
8. according to claim 2 or 3 described special purpose superplasticity board fabrication methods, it is characterized in that: step b is described rollingly again to comprise that described warm-rolling and commutation are cold rolling, promptly changes 90 degree directions with warm-rolling and carries out cold rollingly, and Deformation control is at 60-70%; Be that recrystallize is handled the 20-30 branch under 490-500 ℃ the condition in temperature then; Carrying out two-stage time effect again handles: 100 ℃/0.5 hour, and 180 ℃/3 hours.
9. special purpose superplasticity board fabrication method according to claim 4 is characterized in that: step b is described rollingly again to comprise that described warm-rolling and commutation are cold rolling, promptly changes 90 degree directions with warm-rolling and carries out cold rollingly, and Deformation control is at 60-70%; Be that recrystallize was handled 20-30 minute under 490-500 ℃ the condition in temperature then; Carrying out two-stage time effect again handles: 100 ℃/0.5 hour, and 180 ℃/3 hours.
10. special purpose superplasticity board fabrication method according to claim 5 is characterized in that: step b is described rollingly again to comprise that described warm-rolling and commutation are cold rolling, promptly changes 90 degree directions with warm-rolling and carries out cold rollingly, and Deformation control is at 60-70%; Be that recrystallize was handled 20-30 minute under 490-500 ℃ the condition in temperature then; Carrying out the two-stage time effect processing: 100 ℃/0.5 hour, 180 ℃/3 hours.
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| CNB200510009802XA CN100560764C (en) | 2005-03-08 | 2005-03-08 | Special purpose superplasticity plate and manufacture method thereof |
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| CNB200510009802XA CN100560764C (en) | 2005-03-08 | 2005-03-08 | Special purpose superplasticity plate and manufacture method thereof |
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| CN100560764C true CN100560764C (en) | 2009-11-18 |
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| CN102140589B (en) * | 2011-05-05 | 2012-11-07 | 山东创新金属科技股份有限公司 | Microalloy smelting process for aluminum-magnesium-silicon aluminum alloy |
| CN105441746A (en) * | 2015-11-29 | 2016-03-30 | 惠州卫生职业技术学院 | Method for producing aluminum alloy ingot |
| CN111690886B (en) * | 2020-05-15 | 2021-06-29 | 江苏理工学院 | Treatment method for improving comprehensive mechanical property of Al-Zn alloy with high zinc content |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1325341A (en) * | 1998-10-30 | 2001-12-05 | 克里斯铝轧制品有限公司 | Composite aluminium panel |
| JP4002741B2 (en) * | 2001-06-11 | 2007-11-07 | 日本信号株式会社 | Non-contact automatic ticket gate |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1325341A (en) * | 1998-10-30 | 2001-12-05 | 克里斯铝轧制品有限公司 | Composite aluminium panel |
| JP4002741B2 (en) * | 2001-06-11 | 2007-11-07 | 日本信号株式会社 | Non-contact automatic ticket gate |
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