CN107090569A - Prepare the Technology for Heating Processing of high-strength hard aluminum alloy - Google Patents
Prepare the Technology for Heating Processing of high-strength hard aluminum alloy Download PDFInfo
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- CN107090569A CN107090569A CN201710555104.2A CN201710555104A CN107090569A CN 107090569 A CN107090569 A CN 107090569A CN 201710555104 A CN201710555104 A CN 201710555104A CN 107090569 A CN107090569 A CN 107090569A
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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
- 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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- Engineering & Computer Science (AREA)
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Abstract
Prepare the Technology for Heating Processing of high-strength hard aluminum alloy, belong to field of aluminum alloy heat treatment technology, the present invention is universal 120 or so in order to solve Brinell hardness of traditional 2A12 aluminium alloys after solid solution aging, while power consumption is serious, causes the problem of Alloyapplication scope is limited.Step one：Solution treatment, continuation heating is carried out by 2A12 alloys；Step 2：Quenching Treatment, is quenched to the 2A12 alloys after solution heat；Step 3：Ageing Treatment, continuous heating is carried out to the satiety solid solution obtained after quenching.The Technology for Heating Processing for preparing high-strength hard aluminum alloy of the present invention can improve the hardness of 2A12 aluminium alloys, reduction energy consumption.
Description
Technical field
The present invention relates to a kind of aluminum alloy heat handling process, and in particular to prepares the heat treatment work of high-strength hard aluminum alloy
Skill, belongs to field of aluminum alloy heat treatment technology.
Background technology
Aluminium and aluminium alloy capability are excellent, and purposes is quite varied, and in particular with the development of technology over nearly 20 years, aluminium alloy is
Through being widely used in the various aspects such as Aeronautics and Astronautics, building, bridge, automobile, ship, plant equipment.2A12 is Al-Cu-Mg
In typical duralumin, hard alumin ium alloy, its composition is more reasonable, and combination property is that consumption is maximum in duralumin preferably.It is widely used in aircraft
Structure, rivet, truck hub, propeller element and other a variety of structural members.The characteristics of alloy is：Intensity is high, there is certain
Forming property is all relatively good under heat resistance, Warm status, annealing and new as-quenched, and heat treatment reinforcement effect significantly, but is heat-treated
Technological requirement is strict, and Brinell hardness of the conventional 2A12 aluminium alloys after solid solution aging is universal 120 or so, while power consumption is tight
Weight, causes the Alloyapplication scope to be limited.Therefore a kind of heat-treatment technology method for improving the alloy rigidity is researched and developed, is become particularly
It is important.
The content of the invention
It is an object of the invention to provide the Technology for Heating Processing for preparing high-strength hard aluminum alloy, to solve traditional 2A12 aluminium alloys
Brinell hardness after solid solution aging is universal 120 or so, while power consumption is serious, causes the Alloyapplication scope is limited to ask
Topic.
The Technology for Heating Processing for preparing high-strength hard aluminum alloy comprises the following steps：
Step one：Solution treatment, continuation heating is carried out by 2A12 alloys, forms the supersaturated solid solution of solute atoms,
And form room during alloy solid solution in alloy, the heating-up temperature of the solution treatment is 495~505 DEG C, the heat time be 1h~
3h；
Step 2：Quenching Treatment, is quenched to the 2A12 alloys after solution heat, in quenching, quick cooling, step
Room is remained in crystal described in one, obtains unstable satiety solid solution；
Step 3：Ageing Treatment, carries out continuous heating to the satiety solid solution obtained after quenching, consolidates unstable satiety
Solution is thermally decomposed by unstable tissue and is converted into statenchyma, and heating-up temperature is 185~195 DEG C, the heat time be 6h~
12h, completes the heat treatment of high-strength hard aluminum alloy.
It is preferred that：Heating-up temperature in step one is 500 DEG C, and the heat time is 2h.
It is preferred that：Hardening media in step 2 is to carry out room temperature cold water Quenching Treatment immediately after the completion of water, step one, is quenched
Fiery transfer time≤30 second, quench water temperature≤30 DEG C.
It is preferred that：Continuous heating is carried out in step 3 to the satiety solid solution obtained after quenching, heating-up temperature is 120 DEG C,
Duration is 3h, then proceeds by heating, and heating-up temperature is 190 DEG C, and the duration is 5h.
The present invention has the following effects that compared with existing product：2A12 aluminium alloy Brinell hardness can be improved and reach 140 or so,
Ageing Treatment is carried out to 2A12 alloys simultaneously, not only can significantly shorten heat treatment time, can also improve the microscopic structure of alloy,
The energy is saved again while the hardness for significantly improving alloy.
Embodiment
The preferred embodiment of the present invention is illustrated in detail below.
The Technology for Heating Processing of the present invention for preparing high-strength hard aluminum alloy comprises the following steps：
Step one：Solution treatment, continuation heating is carried out by 2A12 alloys, forms the supersaturated solid solution of solute atoms,
And form room during alloy solid solution in alloy, the heating-up temperature of the solution treatment is 495~505 DEG C, the heat time be 1h~
3h；
Step 2：Quenching Treatment, is quenched to the 2A12 alloys after solution heat, in quenching, quick cooling, step
Room is remained in crystal described in one, obtains unstable satiety solid solution；
Step 3：Ageing Treatment, carries out continuous heating to the satiety solid solution obtained after quenching, consolidates unstable satiety
Solution is thermally decomposed by unstable tissue and is converted into statenchyma, and heating-up temperature is 185~195 DEG C, the heat time be 6h~
12h, completes the heat treatment of high-strength hard aluminum alloy.
Further：Heating-up temperature in step one is 500 DEG C, and the heat time is 2h.
Further：Hardening media in step 2 is to carry out room temperature cold water Quenching Treatment immediately after the completion of water, step one, with
Supersaturated solid solution is formed, quenching shift time≤30 second quench water temperature≤30 DEG C.
Further：Continuous heating is carried out in step 3 to the satiety solid solution obtained after quenching, heating-up temperature is 120 DEG C,
Duration is 3h, then proceeds by heating, and heating-up temperature is 190 DEG C, and the duration is 5h.
2A12 aluminium alloys tested under different technical parameters obtained by hardness number (HB) as shown in table 1：
Table 1
2A12 Aluminium Alloy Solution Treatments experiment system is as shown in table 2：
Table 2
2A12 alloy agings processing experiment system is as shown in table 3：
Table 3
It can be drawn by table 1 to table 3,2A12 aluminium alloys highest Brinell hardness after Overheating Treatment can reach 140, and this is hard
Solid solution craft under degree is 500 DEG C × 2h (solid solubility temperature is 500 DEG C, and soaking time is 2h), and aging technique is with 120 DEG C × 3h
+ 190 DEG C × 5h (aging temp is 120 DEG C, and soaking time is 3h, and then aging temp brings up to 190 DEG C, and soaking time is
5h), gradient Ageing Treatment is taken；The 2A12 alloy rigidity highests finally obtained, while the heat treatment process time is most short.
Present embodiment is the exemplary illustration to this patent, does not limit its protection domain, people in the art
Member can also be changed to its part, as long as no the Spirit Essence beyond this patent, all in the protection domain of this patent.
Claims (4)
1. prepare the Technology for Heating Processing of high-strength hard aluminum alloy, it is characterised in that：Comprise the following steps：
Step one：Solution treatment, continuation heating is carried out by 2A12 alloys, forms the supersaturated solid solution of solute atoms, and close
Room is formed during golden solid solution in alloy, the heating-up temperature of the solution treatment is 495~505 DEG C, and the heat time is 1h~3h；
Step 2：Quenching Treatment, is quenched to the 2A12 alloys after solution heat, in quenching, quick cooling, step one institute
State room to remain in crystal, obtain unstable satiety solid solution；
Step 3：Ageing Treatment, carries out continuous heating to the satiety solid solution obtained after quenching, makes unstable satiety solid solution
Thermally decomposed by unstable tissue and be converted into statenchyma, heating-up temperature is 185~195 DEG C, the heat time is 6h~12h,
Complete the heat treatment of high-strength hard aluminum alloy.
2. the Technology for Heating Processing according to claim 1 for preparing high-strength hard aluminum alloy, it is characterised in that：In step one
Heating-up temperature is 500 DEG C, and the heat time is 2h.
3. the Technology for Heating Processing according to claim 2 for preparing high-strength hard aluminum alloy, it is characterised in that：In step 2
Hardening media is to carry out room temperature cold water Quenching Treatment after the completion of water, step one immediately, and quenching shift time≤30 second quench water temperature
≤30℃。
4. the Technology for Heating Processing according to claim 1 for preparing high-strength hard aluminum alloy, it is characterised in that：It is right in step 3
The satiety solid solution obtained after quenching carries out continuous heating, and heating-up temperature is 120 DEG C, and the duration is 3h, is then proceeded by
Heating, heating-up temperature is 190 DEG C, and the duration is 5h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710555104.2A CN107090569A (en) | 2017-07-07 | 2017-07-07 | Prepare the Technology for Heating Processing of high-strength hard aluminum alloy |
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| CN201710555104.2A CN107090569A (en) | 2017-07-07 | 2017-07-07 | Prepare the Technology for Heating Processing of high-strength hard aluminum alloy |
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| CN201710555104.2A Pending CN107090569A (en) | 2017-07-07 | 2017-07-07 | Prepare the Technology for Heating Processing of high-strength hard aluminum alloy |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109023181A (en) * | 2018-10-25 | 2018-12-18 | 西安长峰机电研究所 | A kind of heat treatment method preventing the solid solution burning of 2A12 aluminum alloy part |
| CN109823405A (en) * | 2019-01-31 | 2019-05-31 | 重庆长安汽车股份有限公司 | A kind of manufacturing method of vehicle body top side rail, vehicle body top side rail and automobile |
| CN111139340A (en) * | 2020-03-02 | 2020-05-12 | 杭州大路金属热处理有限公司 | Heat treatment process of propeller shaft |
| CN115896654A (en) * | 2022-12-19 | 2023-04-04 | 湖南中创空天新材料股份有限公司 | Heat treatment method for rapidly obtaining natural aging mechanical property of aluminum alloy |
| CN116732456A (en) * | 2023-06-13 | 2023-09-12 | 西南铝业（集团）有限责任公司 | Production process of high-strength hard aluminum alloy plate |
Citations (5)
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|---|---|---|---|---|
| JPS57188643A (en) * | 1981-05-17 | 1982-11-19 | Yoshio Nozaki | Strengthened aluminum alloy |
| US20010006082A1 (en) * | 1999-12-28 | 2001-07-05 | Timothy Warner | Aircraft structure element made of an Al-Cu-Mg alloy |
| CN103184395A (en) * | 2013-03-21 | 2013-07-03 | 陕西飞机工业（集团）有限公司 | LY12 aluminium alloy quenching technique method |
| CN105821354A (en) * | 2016-04-20 | 2016-08-03 | 中南大学 | Method for improving size stability of aluminum alloy for aerospace |
| CN106513638A (en) * | 2016-11-18 | 2017-03-22 | 喀左金牛铸造有限公司 | 2Al2 aluminum alloy casting process |
-
2017
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57188643A (en) * | 1981-05-17 | 1982-11-19 | Yoshio Nozaki | Strengthened aluminum alloy |
| US20010006082A1 (en) * | 1999-12-28 | 2001-07-05 | Timothy Warner | Aircraft structure element made of an Al-Cu-Mg alloy |
| CN103184395A (en) * | 2013-03-21 | 2013-07-03 | 陕西飞机工业（集团）有限公司 | LY12 aluminium alloy quenching technique method |
| CN105821354A (en) * | 2016-04-20 | 2016-08-03 | 中南大学 | Method for improving size stability of aluminum alloy for aerospace |
| CN106513638A (en) * | 2016-11-18 | 2017-03-22 | 喀左金牛铸造有限公司 | 2Al2 aluminum alloy casting process |
Non-Patent Citations (2)
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| 徐品才: "铝合金零件分级或多级时效处理", 《铸锻热——热处理实践》 * |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109023181A (en) * | 2018-10-25 | 2018-12-18 | 西安长峰机电研究所 | A kind of heat treatment method preventing the solid solution burning of 2A12 aluminum alloy part |
| CN109023181B (en) * | 2018-10-25 | 2020-11-10 | 西安长峰机电研究所 | Heat treatment method for preventing 2A12 aluminum alloy part from solid solution and overburning |
| CN109823405A (en) * | 2019-01-31 | 2019-05-31 | 重庆长安汽车股份有限公司 | A kind of manufacturing method of vehicle body top side rail, vehicle body top side rail and automobile |
| CN111139340A (en) * | 2020-03-02 | 2020-05-12 | 杭州大路金属热处理有限公司 | Heat treatment process of propeller shaft |
| CN115896654A (en) * | 2022-12-19 | 2023-04-04 | 湖南中创空天新材料股份有限公司 | Heat treatment method for rapidly obtaining natural aging mechanical property of aluminum alloy |
| CN116732456A (en) * | 2023-06-13 | 2023-09-12 | 西南铝业（集团）有限责任公司 | Production process of high-strength hard aluminum alloy plate |
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Application publication date: 20170825 |