CN105951009B - A kind of Technology for Heating Processing of aluminium alloy - Google Patents
A kind of Technology for Heating Processing of aluminium alloy Download PDFInfo
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- CN105951009B CN105951009B CN201610424265.3A CN201610424265A CN105951009B CN 105951009 B CN105951009 B CN 105951009B CN 201610424265 A CN201610424265 A CN 201610424265A CN 105951009 B CN105951009 B CN 105951009B
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- 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
- C22F1/057—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 copper as the next major constituent
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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
- C22C21/12—Alloys based on aluminium with copper as the next major constituent
- C22C21/14—Alloys based on aluminium with copper as the next major constituent with silicon
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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
- C22C21/12—Alloys based on aluminium with copper as the next major constituent
- C22C21/16—Alloys based on aluminium with copper as the next major constituent with magnesium
-
- 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
- C22F1/002—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working by rapid cooling or quenching; cooling agents used therefor
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- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
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Abstract
The present invention proposes a kind of Technology for Heating Processing of aluminium alloy, first by Al alloy parts the pre-heat treatment；Above-mentioned Al alloy parts are quickly cooled down with 60 DEG C/sec, 80 DEG C/sec speed afterwards；Al alloy parts solution treatment at 500 515 DEG C by more than；Workpiece is taken out afterwards and carries out cold quenching processing；Al alloy parts after water quenching are placed on the 8h of Ageing Treatment 5 in heating furnace, the temperature of terminal hour effect is 200 220 DEG C；Again through the 60h of artificial aging 48, room temperature is air-cooled to.Before Ageing Treatment is carried out, also need to carry out Pre-aging treatment, pre-age temperature is 120 150 DEG C.The technical program heat treatment time is moderate, and simple to operate easily to implement, thermal energy consumption is low, reduces aluminium alloy manufacturing cost.The decay resistance enhancing enabled aluminum alloy to, the workpiece size stability obtained is good, and has certain ductility and good mechanical property.
Description
Technical field
The present invention relates to aluminum alloy heat processing technique field, more particularly, to a kind of Technology for Heating Processing of aluminium alloy.
Background technology
With the fast development of aeronautical and space technology, the requirement more and more higher to material property, and reducing construction weight is
Improve one of main method of aerospace craft performance.Wherein lightweight often from improve material tensile strength, modulus of elasticity or
Person's anti-crack is expanded performance and set about.Aluminium alloy has low-density, high specific strength, good mouldability and corrosion resistance, low cost etc.
A series of advantages, have a wide range of applications in Aero-Space and industrial circle.Aluminium alloy is heat-treated, aluminium alloy can be improved
Mechanical property, strengthen decay resistance, improve processing characteristics, obtain the stability of size.Aluminum alloy material is used many
Occasion, it is desirable to aluminium alloy has good bending and stretching performance, it is therefore desirable to aluminium alloy is heat-treated, but now
Heat treatment method temperature is higher, and processing time length, energy consumption is higher, and complex operation, and tensile property, crystalline substance often occur after heat treatment
Between corrode underproof situation, aluminium alloy manufacturing cost is high, requires high to the technical merit of worker.
The content of the invention
It is contemplated that overcome defect present in above-mentioned prior art, it is proposed that a kind of Technology for Heating Processing of aluminium alloy,
Technique is simple, easy to implement, and energy consumption is low, is advantageous to cost-effective.
The technical proposal of the invention is realized in this way：
A kind of Technology for Heating Processing of aluminium alloy, comprises the following steps：
1. Al alloy parts are carried out to 3h the pre-heat treatment in 200-260 DEG C of heating furnace；
2. after the pre-heat treatment, above-mentioned Al alloy parts are quickly cooled down with 60 DEG C/sec-80 DEG C/sec speed；
3. by the solution treatment at 500-515 DEG C of above-mentioned Al alloy parts；
4. cold quenching processing is carried out after the Al alloy parts after above-mentioned solution hardening are taken out；
5. the Al alloy parts after water quenching are placed on into Ageing Treatment 5-8h in heating furnace, the temperature of terminal hour effect is 200-
220℃；
6. it is air-cooled to room temperature through artificial aging 48-60h again.
Further, the Al alloy parts are 2xxx line aluminium alloys or 6xxx line aluminium alloys.
Further, during the Ageing Treatment, pre-age temperature is 120-150 DEG C.
Further, before step 1. the pre-heat treatment, cold-rolling treatment first is carried out to Al alloy parts.
Further, cold rolling is carried out to Al alloy parts with 46%-49% reduction ratio.
Further, aluminium alloy each component percentage by weight is as follows：Si0.05-0.07%, Ti 0.03-0.05%, Mg
It is 0.001-0.0015%, Cu 0.5-0.7%, Fe 0.06-0.09%, Mn0.002-0.003%, Cr0.02-0.0275%, miscellaneous
Matter ﹤ 0.05%, surplus Al.
Further,：Step 4. in, using containing CrCl3, CsF, KNO3 aqueous solution cold quenching.
Further, CrCl 3 5-8g, CsF 7-12g, KNO3 10-12g, NiCl22-3g, water are contained in the aqueous solution
Solution pH value is between 7-7.5.
Above-mentioned technical proposal is employed, beneficial effects of the present invention are：
The technical program heat treatment time is moderate, and simple to operate easily to implement, thermal energy consumption is low, reduces the aluminium alloy manufacturing
Cost.The decay resistance enhancing enabled aluminum alloy to, the workpiece size stability obtained is good, and with certain ductility and
Good mechanical property.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is the process flow diagram of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
A kind of Technology for Heating Processing of aluminium alloy, as shown in figure 1, comprising the following steps：
1. Al alloy parts are carried out to 3h the pre-heat treatment in 200-260 DEG C of heating furnace；
2. after the pre-heat treatment, above-mentioned Al alloy parts are quickly cooled down with 60 DEG C/sec-80 DEG C/sec speed；
3. by the solution treatment at 500-515 DEG C of above-mentioned Al alloy parts；
4. cold quenching processing is carried out after the Al alloy parts after above-mentioned solution hardening are taken out；
5. the Al alloy parts after water quenching are placed on into Ageing Treatment 5-8h in heating furnace, the temperature of terminal hour effect is 200-
220℃；
6. it is air-cooled to room temperature through artificial aging 48-60h again.
Above-mentioned Al alloy parts are 2xxx line aluminium alloys or 6xxx line aluminium alloys.Before Ageing Treatment is carried out, first carry out
Pre-aging treatment, pre-age temperature are 120-150 DEG C, and the preageing time is 1-1.5h.
Wherein, before step 1. the pre-heat treatment, cold-rolling treatment first is carried out to Al alloy parts.And preferably with 46%-
49% reduction ratio carries out cold rolling to Al alloy parts, enables aluminum alloy to shearing tissue occur.
Wherein, aluminium alloy each component percentage by weight is as follows：Si0.05-0.07%, Ti 0.03-0.05%, Mg0.001-
0.0015%th, Cu 0.5-0.7%, Fe 0.06-0.09%, Mn0.002-0.003%, Cr0.02-0.0275%, impurity ﹤
0.05%, surplus Al.
Step 4. in, using containing CrCl3, CsF, KNO3 aqueous solution cold quenching.Wherein, the 5- of CrCl 3 are contained in the aqueous solution
8g, CsF 7-12g, KNO3 10-12g, NiCl2 2-3g, aqueous ph value is in 7-7.5.
As a comparative example of the technical program, Al alloy parts are 1. subjected to 3h in 150-200 DEG C of heating furnace
The pre-heat treatment；
2. after the pre-heat treatment, above-mentioned Al alloy parts are quickly cooled down with 60 DEG C/sec-80 DEG C/sec speed；
3. by the solution treatment under 350-450 of above-mentioned Al alloy parts；
4. cold quenching processing is carried out after the Al alloy parts after above-mentioned solution hardening are taken out；
5. the Al alloy parts after water quenching are placed on into Ageing Treatment 3-4h in heating furnace, the temperature of terminal hour effect is 150-
180℃；
6. it is air-cooled to room temperature through artificial aging 48-60h again.
As another comparative example of the technical program, 1. Al alloy parts are carried out in 280-300 DEG C of heating furnace
5h the pre-heat treatment；
2. after the pre-heat treatment, above-mentioned Al alloy parts are quickly cooled down with 60 DEG C/sec-80 DEG C/sec speed；
3. by the solution treatment at 520-550 DEG C of above-mentioned Al alloy parts；
4. cold quenching processing is carried out after the Al alloy parts after above-mentioned solution hardening are taken out；
5. the Al alloy parts after water quenching are placed on into Ageing Treatment 3-4h in heating furnace, the temperature of terminal hour effect is 230-
250℃；
6. it is air-cooled to room temperature through artificial aging 48-60h again.
Through Experimental Comparison, the technical program heat treatment time is moderate, and simple to operate easily to implement, thermal energy consumption is low, reduces aluminium
Alloy production manufacturing cost.The decay resistance enhancing enabled aluminum alloy to, the workpiece size stability obtained is good, and with one
Fixed ductility and good mechanical property.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God any modification, equivalent substitution and improvements made etc., should be included in the scope of the protection with principle.
Claims (3)
1. a kind of Technology for Heating Processing of aluminium alloy, it is characterised in that aluminium alloy each component percentage by weight is as follows：Si0.05-
0.07%th, Ti 0.03-0.05%, Mg 0.001-0.0015%, Cu 0.5-0.7%, Fe 0.06-0.09%, Mn0.002-
0.003%th, Cr 0.02-0.0275%, impurity ﹤ 0.05%, surplus Al, comprise the following steps：
1. Al alloy parts are carried out to 3h the pre-heat treatment in 200-260 DEG C of heating furnace, before the pre-heat treatment, first to aluminium alloy
Workpiece carries out cold-rolling treatment；
2. after the pre-heat treatment, above-mentioned Al alloy parts are quickly cooled down with 60 DEG C/sec-80 DEG C/sec speed；
3. by the solution treatment at 500-515 DEG C of above-mentioned Al alloy parts；
4. cold quenching processing is carried out after the Al alloy parts after above-mentioned solution hardening are taken out, using containing CrCl3、CsF、KNO3Water
Solution cold quenching, contain CrCl in the aqueous solution3 5-8g、CsF 7-12g、KNO3 10-12g、NiCl22-3g, aqueous solution p
H values are between 7-7.5；
5. the Al alloy parts after cold quenching are placed on Ageing Treatment 5-8h in heating furnace, during the Ageing Treatment, preageing temperature
Spend for 120-150 DEG C, the temperature of terminal hour effect is 200-220 DEG C；
6. it is air-cooled to room temperature through artificial aging 48-60h again.
A kind of 2. Technology for Heating Processing of aluminium alloy according to claim 1, it is characterised in that：The Al alloy parts are
2xxx line aluminium alloys or 6xxx line aluminium alloys.
A kind of 3. Technology for Heating Processing of aluminium alloy according to claim 2, it is characterised in that：With 46%-49% pressure
Rate carries out cold rolling to Al alloy parts.
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| CN105951009B true CN105951009B (en) | 2017-11-21 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107267899A (en) * | 2017-07-05 | 2017-10-20 | 合肥万之景门窗有限公司 | A kind of Technology for Heating Processing of aluminium alloy |
| KR102430184B1 (en) * | 2017-10-23 | 2022-08-08 | 노벨리스 인크. | Reactive quenching solutions and methods of use |
| CN108118272A (en) * | 2018-01-26 | 2018-06-05 | 山东创新金属科技有限公司 | A kind of high-quality aluminum alloy material heat treatment process |
| CN108994267B (en) * | 2018-10-08 | 2021-02-23 | 吉林大学 | 6XXX series aluminum rolled plate preparation method capable of improving processing formability and aging strengthening effect |
| CN115652231B (en) * | 2022-11-18 | 2023-08-04 | 南通市华阳铝制品有限公司 | Heat treatment method for high-strength aluminum alloy section bar |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3827952A (en) * | 1972-09-20 | 1974-08-06 | Aluminum Co Of America | Aluminum alloy architectural sheet product and method for producing |
| CN105018804A (en) * | 2014-04-24 | 2015-11-04 | 贵州理工学院 | Al-Mg-Si as-cast aluminum alloy and aging treatment process thereof |
| CN105543738A (en) * | 2016-01-29 | 2016-05-04 | 华中科技大学 | Thermo-mechanical treatment method for aluminum alloy |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63103046A (en) * | 1986-10-20 | 1988-05-07 | Furukawa Alum Co Ltd | Aluminum alloy for cold forging |
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2016
- 2016-06-15 CN CN201610424265.3A patent/CN105951009B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3827952A (en) * | 1972-09-20 | 1974-08-06 | Aluminum Co Of America | Aluminum alloy architectural sheet product and method for producing |
| CN105018804A (en) * | 2014-04-24 | 2015-11-04 | 贵州理工学院 | Al-Mg-Si as-cast aluminum alloy and aging treatment process thereof |
| CN105543738A (en) * | 2016-01-29 | 2016-05-04 | 华中科技大学 | Thermo-mechanical treatment method for aluminum alloy |
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