CN111575618B - A treatment method for reducing the cracking tendency of Al-Zn alloy rolled with large deformation amount - Google Patents
A treatment method for reducing the cracking tendency of Al-Zn alloy rolled with large deformation amount Download PDFInfo
- Publication number
- CN111575618B CN111575618B CN202010414842.7A CN202010414842A CN111575618B CN 111575618 B CN111575618 B CN 111575618B CN 202010414842 A CN202010414842 A CN 202010414842A CN 111575618 B CN111575618 B CN 111575618B
- Authority
- CN
- China
- Prior art keywords
- rolling
- treatment
- alloy
- rolling process
- large deformation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000000956 alloy Substances 0.000 title claims abstract description 63
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 62
- 229910018137 Al-Zn Inorganic materials 0.000 title claims abstract description 56
- 229910018573 Al—Zn Inorganic materials 0.000 title claims abstract description 56
- 238000005336 cracking Methods 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000005096 rolling process Methods 0.000 claims abstract description 98
- 238000000137 annealing Methods 0.000 claims abstract description 26
- 238000010438 heat treatment Methods 0.000 claims abstract description 13
- 238000005266 casting Methods 0.000 claims abstract description 11
- 238000003672 processing method Methods 0.000 claims abstract 5
- 230000035882 stress Effects 0.000 claims description 18
- 230000032683 aging Effects 0.000 claims description 12
- 238000000265 homogenisation Methods 0.000 claims description 9
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000011701 zinc Substances 0.000 claims description 5
- 229910052725 zinc Inorganic materials 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 238000004321 preservation Methods 0.000 description 16
- 229910001297 Zn alloy Inorganic materials 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 10
- 239000006104 solid solution Substances 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 238000009864 tensile test Methods 0.000 description 5
- 238000005520 cutting process Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910000861 Mg alloy Inorganic materials 0.000 description 1
- 229910000676 Si alloy Inorganic materials 0.000 description 1
- CSDREXVUYHZDNP-UHFFFAOYSA-N alumanylidynesilicon Chemical compound [Al].[Si] CSDREXVUYHZDNP-UHFFFAOYSA-N 0.000 description 1
- WPPDFTBPZNZZRP-UHFFFAOYSA-N aluminum copper Chemical compound [Al].[Cu] WPPDFTBPZNZZRP-UHFFFAOYSA-N 0.000 description 1
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 description 1
- FJMNNXLGOUYVHO-UHFFFAOYSA-N aluminum zinc Chemical compound [Al].[Zn] FJMNNXLGOUYVHO-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- 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
- C22F1/053—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 zinc as the next major constituent
-
- 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
- C22C21/10—Alloys based on aluminium with zinc as the next major constituent
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Metal Rolling (AREA)
Abstract
本发明涉及一种降低大形变量轧制Al‑Zn合金开裂倾向的处理方法，包括如下顺序步骤：(1)对铸造成型后的未经任何处理的Al‑Zn合金铸坯进行均匀化处理(2)进行多道次的轧制过程，所述轧制过程的每次压下量为25％～30％；(3)所述轧制过程进行到三道次或四道次后，进行去应力退火处理；(4)所述退火处理完成后立即进行多道次转向轧制过程，每次压下量为25％～30％，所述转向轧制过程进行到三道次或四道次后可获得形变量90％以上的轧制Al‑Zn合金；(5)最后进行T6热处理。本发明处理方法能够获得较高的强度和韧性的大形变量Al‑Zn合金，并有效降低大形变量轧制过程所造成的开裂问题。
The present invention relates to a treatment method for reducing the cracking tendency of rolling Al-Zn alloy with large deformation amount, comprising the following sequential steps: (1) homogenizing the untreated Al-Zn alloy slab after casting and forming ( 2) Carry out a multi-pass rolling process, and each reduction in the rolling process is 25% to 30%; (3) After the rolling process is carried out to three passes or four passes, the rolling process is carried out. Stress annealing treatment; (4) After the annealing treatment is completed, a multi-pass turning rolling process is performed immediately, and the reduction amount is 25% to 30% each time, and the turning rolling process is carried out to three or four passes. Afterwards, a rolled Al-Zn alloy with a deformation amount of more than 90% can be obtained; (5) T6 heat treatment is performed at the end. The processing method of the invention can obtain Al-Zn alloys with high strength and toughness with large deformation amount, and can effectively reduce the cracking problem caused by the rolling process with large deformation amount.
Description
Technical Field
The invention relates to the technical field of alloy treatment, in particular to a treatment method for reducing cracking tendency of a large-deformation rolling Al-Zn alloy.
Background
Cast aluminum alloys can be classified into four types according to the difference of main elements: aluminum silicon alloys, aluminum copper alloys, aluminum magnesium alloys, and aluminum zinc alloys. The Al-Zn alloy has the advantages of light weight, high specific strength, corrosion resistance, easy processing and forming, is suitable for being used as a light-weight high-strength structural member, and is an alloy material widely applied to the aviation industry, particularly the aircraft manufacturing industry. The common brands are ZL401, ZL402 and the like, the price is relatively low, and the welding and casting performances are excellent. The modern transportation industry has the requirements of high strength and light weight for the transportation industry, and the strength requirement for the Al-Zn alloy is further improved.
The strength of the plate alloy can be effectively improved by rolling, the tensile strength of the Al-Zn alloy subjected to strengthening treatment can reach 700MPa, and the yield strength of the Al-Zn alloy is as high as 600 MPa. However, the high yield strength causes the Al-Zn alloy to have stronger work hardening tendency and larger local deformation tendency, and the cracking problem is easy to occur in the rolling process, especially in the rolling process with large deformation amount.
Disclosure of Invention
In order to solve the technical problem that cracking is easy to occur in the large-deformation rolling process of the Al-Zn alloy, the treatment method for reducing the cracking tendency of the large-deformation rolled Al-Zn alloy is provided. The method has the advantages of convenient operation process, high efficiency and short period, and effectively reduces the cracking tendency of the Al-Zn alloy.
In order to achieve the purpose, the invention is realized by the following technical scheme:
a treatment method for reducing the cracking tendency of a large-deformation rolling Al-Zn alloy comprises the following sequential steps:
(1) homogenizing the cast and formed Al-Zn alloy casting blank which is not treated;
(2) immediately carrying out a multi-pass rolling process on the homogenized Al-Zn alloy, wherein the reduction of each pass of the rolling process is 25-30%;
(3) after the rolling process is carried out for three times or four times, stress relief annealing treatment is carried out;
(4) after the annealing treatment is finished, immediately carrying out a multi-pass turning rolling process, wherein the reduction amount of each time is 25-30%, and after the turning rolling process is carried out for three or four passes, rolling Al-Zn alloy with the deformation amount of more than 90% can be obtained;
(5) finally, T6 heat treatment is carried out.
Further, the thickness of the Al-Zn alloy casting blank in the step (1) is 10 mm; the content of zinc in the Al-Zn alloy casting blank is 10-30 wt%, and the balance is aluminum.
Further, the temperature of the homogenization treatment in the step (1) is 450-470 ℃, and the heat preservation time is 12-24 h.
Further, the rolling process in the step (2) adopts flat roll rolling, the diameters of the upper and lower rollers are the same during rolling, the rotating directions are opposite, and the rotating speeds are kept consistent.
Further, the temperature of the stress-relief annealing treatment in the step (3) is 425-450 ℃, and the heat preservation time is 2-4 h.
Furthermore, in the step (3), the heat treatment furnace is preheated to the set temperature of the stress relief annealing treatment before the stress relief annealing treatment is performed.
Further, the turning rolling in the step (3) is performed after the Al-Zn alloy in the rolling process in the step (2) is rotated by 90 degrees, and the diameter, the rotating direction and the rotating speed of the roller are consistent with those in the step (2).
Further, the T6 heat treatment process in the step (4) is to perform solution treatment, then water cooling to room temperature, and finally perform aging treatment.
Furthermore, the temperature of the solution treatment is 470-520 ℃, and the heat preservation time is 4 h; the temperature of the aging treatment is 120-150 ℃, and the heat preservation time is 16 h.
The beneficial technical effects are as follows:
according to the invention, the Al-Zn alloy casting blank which is not subjected to any treatment is firstly subjected to homogenization treatment, then is subjected to rolling, stress relief annealing treatment and turning rolling to obtain the large-deformation rolling Al-Zn alloy with the deformation amount of more than 90%, and the rolled large-deformation Al-Zn alloy is subjected to T6 treatment, so that the cracking problem caused in the large-deformation rolling process can be effectively reduced, and the large-deformation Al-Zn alloy with higher strength and toughness can be obtained. The Al-Zn alloy with high zinc content is easy to crack in the rolling process, and the stress caused by rolling can be effectively removed by timely annealing treatment after the rolling process, so that the cracking tendency after turning to rolling is reduced; and the turning rolling can eliminate micro-cracks caused by the previous rolling, obviously reduce the cracking tendency of the rolling with large deformation quantity, and further obtain the large rolling deformation quantity. The invention can obviously reduce the cracking tendency of the Al-Zn alloy in large deformation rolling, and the rolling process is easy to control.
Drawings
FIG. 1(a) is a physical representation of the appearance of an Al-20 wt% Zn alloy treated in comparative example 1;
FIG. 1(b) is a pictorial representation of the appearance of an Al-20 wt% Zn alloy after treatment in example 2 of the present invention;
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Unless specifically stated otherwise, the numerical values set forth in these examples do not limit the scope of the invention. Techniques, methods known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
Example 1
A treatment method for reducing the cracking tendency of a large-deformation rolling Al-Zn alloy comprises the following sequential steps:
(1) homogenizing the cast and formed Al-10 wt% Zn alloy blank which is not subjected to any treatment, wherein the temperature of the homogenization treatment is 450 ℃, and the heat preservation time is 24 hours;
(2) immediately carrying out a multi-pass rolling process on the homogenized Al-Zn alloy, wherein the reduction of each pass of the rolling process is 30%;
(3) after the rolling process is carried out for three times, carrying out stress relief annealing treatment, wherein the temperature of the stress relief annealing treatment is 426 ℃, and the heat preservation time is 2 hours;
(4) immediately carrying out a multi-pass turning rolling process after the annealing treatment is finished, wherein the reduction of each time is 25%, and after the turning rolling process is carried out to the fourth pass, rolling Al-10 wt% Zn alloy with the deformation of 92% can be obtained;
(5) finally, carrying out T6 heat treatment, wherein the T6 heat treatment process comprises the steps of firstly carrying out solid solution treatment, then carrying out water cooling to room temperature, and finally carrying out aging treatment, wherein the temperature of the solid solution treatment is 470 ℃, and the heat preservation time is 4 hours; the temperature of the aging treatment is 120 ℃, and the heat preservation time is 16 h.
The sample of this example did not crack and a tensile test sample of full test performance could be cut.
Example 2
A treatment method for reducing the cracking tendency of a large-deformation rolling Al-Zn alloy comprises the following sequential steps:
(1) homogenizing the cast and formed Al-20 wt% Zn alloy blank which is not subjected to any treatment, wherein the temperature of the homogenizing treatment is 460 ℃, and the heat preservation time is 18 h;
(2) immediately carrying out a multi-pass rolling process on the homogenized Al-Zn alloy, wherein the reduction of each pass of the rolling process is 30%;
(3) after the rolling process is carried out for three times, carrying out stress relief annealing treatment, wherein the temperature of the stress relief annealing treatment is 440 ℃, and the heat preservation time is 3 hours;
(4) after the annealing treatment is finished, immediately carrying out a multi-pass turning rolling process, wherein the reduction amount of each time is 30%, and after the turning rolling process is carried out for three times, rolling Al-20 wt% Zn alloy with the deformation amount of 90% can be obtained;
(5) finally, carrying out T6 heat treatment, wherein the T6 heat treatment process comprises the steps of firstly carrying out solid solution treatment, then carrying out water cooling to room temperature, and finally carrying out aging treatment, wherein the temperature of the solid solution treatment is 495 ℃, and the heat preservation time is 4 h; the temperature of the aging treatment is 135 ℃, and the heat preservation time is 16 h.
The appearance of the tensile test sample for cutting out the test performance of the sample of this example is shown in fig. 1(a), and the sample of this example is not cracked and can cut out the tensile test sample with complete test performance.
Example 3
A treatment method for reducing the cracking tendency of a large-deformation rolling Al-Zn alloy comprises the following sequential steps:
(1) homogenizing the cast and formed Al-30 wt% Zn alloy blank which is not subjected to any treatment, wherein the temperature of the homogenization treatment is 470 ℃, and the heat preservation time is 24 hours;
(2) immediately carrying out a multi-pass rolling process on the homogenized Al-Zn alloy, wherein the reduction of each pass of the rolling process is 25%;
(3) after the rolling process is carried out for four times, carrying out stress relief annealing treatment, wherein the temperature of the stress relief annealing treatment is 450 ℃, and the heat preservation time is 4 hours;
(4) immediately carrying out a multi-pass turning rolling process after the annealing treatment is finished, wherein the rolling reduction is 25% each time, and after the turning rolling process is carried out for four passes, rolling Al-30 wt% Zn alloy with the deformation of 95% can be obtained;
(5) finally, carrying out T6 heat treatment, wherein the T6 heat treatment process comprises the steps of firstly carrying out solid solution treatment, then carrying out water cooling to room temperature, and finally carrying out aging treatment, wherein the temperature of the solid solution treatment is 520 ℃, and the heat preservation time is 4 h; the temperature of the aging treatment is 150 ℃, and the heat preservation time is 16 h.
The sample of this example did not crack and a tensile test sample of full test performance could be cut.
Comparative example 1
This comparative example is the same as the treatment method of example 2 except that step (3) was not performed. The step (3) is not carried out in the treatment process, but the turning rolling is directly carried out, in the turning rolling process, the Al-20 wt% Zn alloy subjected to the three times of turning rolling is seriously cracked, the cracking is still serious after the step (5), the appearance of the sample is shown in figure 1(a), and the sample of the comparative example cannot be used for cutting a tensile test sample for testing the performance due to the serious cracking.
Comparative example 2
This comparative example is the same as the treatment method of example 2, except that the solution treatment and aging treatment of step (5) are followed by the homogenization treatment of step (1), and the resulting alloy has a certain degree of cracking phenomenon.
The Al-Zn alloys treated in the above examples and comparative examples were subjected to performance tests, the test items including yield strength, tensile strength, and elongation at break, and the data are shown in Table 1.
TABLE 1 Al-Zn alloy Properties after treatment of examples and comparative examples
As can be seen from table 1, in embodiments 1 to 3 of the present invention, a large deformation rolling Al-Zn alloy of 90% or more can be obtained by performing homogenization treatment on an Al-Zn alloy casting blank with high zinc content without any treatment, then performing rolling, stress relief annealing treatment, and turning rolling, and after performing T6 treatment on the rolled large deformation rolling Al-Zn alloy, the cracking problem caused by the large deformation rolling process can be effectively reduced, and a large deformation Al-Zn alloy with high strength and toughness can be obtained. The Al-Zn alloy with high zinc content is easy to crack in the rolling process, and the stress caused by rolling can be effectively removed by timely annealing treatment after the rolling process, so that the cracking tendency after turning to rolling is reduced; and the turning rolling can eliminate micro-cracks caused by the previous rolling, obviously reduce the cracking tendency of the rolling with large deformation quantity, and further obtain the large rolling deformation quantity.
Comparing the comparative example 2 with the example 2, the comparative example 2 adopts homogenization treatment → solution treatment and aging treatment → rolling → stress relief annealing treatment → turning rolling, and the obtained alloy has a certain cracking phenomenon, and the comprehensive mechanical property of the alloy is much worse than that of the alloy in the example 2 of the invention.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010414842.7A CN111575618B (en) | 2020-05-15 | 2020-05-15 | A treatment method for reducing the cracking tendency of Al-Zn alloy rolled with large deformation amount |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010414842.7A CN111575618B (en) | 2020-05-15 | 2020-05-15 | A treatment method for reducing the cracking tendency of Al-Zn alloy rolled with large deformation amount |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111575618A CN111575618A (en) | 2020-08-25 |
| CN111575618B true CN111575618B (en) | 2021-07-02 |
Family
ID=72123109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010414842.7A Active CN111575618B (en) | 2020-05-15 | 2020-05-15 | A treatment method for reducing the cracking tendency of Al-Zn alloy rolled with large deformation amount |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111575618B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117821815B (en) * | 2024-03-04 | 2024-06-04 | 鼎镁新材料科技股份有限公司 | High-strength coarse-grain-free Al-Zn-Mg-Cu aluminum alloy for motorcycle wheels and preparation method thereof |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3694272A (en) * | 1970-12-24 | 1972-09-26 | Kaiser Aluminium Chem Corp | Method for forming aluminum sheet |
| JPS534718A (en) * | 1976-07-05 | 1978-01-17 | Mitsubishi Metal Corp | Anticorrosive copper alloy having superior hot workability |
| JPS5514886A (en) * | 1979-03-19 | 1980-02-01 | Hitachi Ltd | Manufacture of high toughness, high machinability aluminum alloy for cutting use |
| WO1980001548A1 (en) * | 1979-01-26 | 1980-08-07 | R Mcalister | Plastic solar panel structure and manufacturing method and apparatus |
| CN1489637A (en) * | 2000-12-21 | 2004-04-14 | �Ƹ��� | Aluminum alloy products and artificial aging method |
| CN1780925A (en) * | 2003-04-10 | 2006-05-31 | 克里斯铝轧制品有限公司 | High strength al-zn alloy and method for producing such an alloy product |
| CN1832825A (en) * | 2003-08-29 | 2006-09-13 | 克里斯铝轧制品有限公司 | High strength aluminium alloy brazing sheet, brazed assembly and method for producing the same |
| CN103710595A (en) * | 2014-01-16 | 2014-04-09 | 张霞 | Hot rolled aluminum-zinc alloy plate and preparation method thereof |
| CN104321451A (en) * | 2012-03-07 | 2015-01-28 | 美铝公司 | Improved 7XXX aluminum alloys, and methods for producing the same |
| WO2019007817A1 (en) * | 2017-07-03 | 2019-01-10 | Constellium Issoire | Al- zn-cu-mg alloys and their manufacturing process |
| CN111101035A (en) * | 2020-01-10 | 2020-05-05 | 广西百矿润泰铝业有限公司 | Preparation method of aluminum foil for automobile radiator |
-
2020
- 2020-05-15 CN CN202010414842.7A patent/CN111575618B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3694272A (en) * | 1970-12-24 | 1972-09-26 | Kaiser Aluminium Chem Corp | Method for forming aluminum sheet |
| JPS534718A (en) * | 1976-07-05 | 1978-01-17 | Mitsubishi Metal Corp | Anticorrosive copper alloy having superior hot workability |
| WO1980001548A1 (en) * | 1979-01-26 | 1980-08-07 | R Mcalister | Plastic solar panel structure and manufacturing method and apparatus |
| JPS5514886A (en) * | 1979-03-19 | 1980-02-01 | Hitachi Ltd | Manufacture of high toughness, high machinability aluminum alloy for cutting use |
| CN1489637A (en) * | 2000-12-21 | 2004-04-14 | �Ƹ��� | Aluminum alloy products and artificial aging method |
| CN1780925A (en) * | 2003-04-10 | 2006-05-31 | 克里斯铝轧制品有限公司 | High strength al-zn alloy and method for producing such an alloy product |
| CN1832825A (en) * | 2003-08-29 | 2006-09-13 | 克里斯铝轧制品有限公司 | High strength aluminium alloy brazing sheet, brazed assembly and method for producing the same |
| CN104321451A (en) * | 2012-03-07 | 2015-01-28 | 美铝公司 | Improved 7XXX aluminum alloys, and methods for producing the same |
| CN103710595A (en) * | 2014-01-16 | 2014-04-09 | 张霞 | Hot rolled aluminum-zinc alloy plate and preparation method thereof |
| WO2019007817A1 (en) * | 2017-07-03 | 2019-01-10 | Constellium Issoire | Al- zn-cu-mg alloys and their manufacturing process |
| CN111101035A (en) * | 2020-01-10 | 2020-05-05 | 广西百矿润泰铝业有限公司 | Preparation method of aluminum foil for automobile radiator |
Non-Patent Citations (1)
| Title |
|---|
| Effect of pre-deformation on quench-induced inhomogeneity of microstructure and hardness in 7050 aluminum alloy;Yu,WX等;《MATERIALS CHARACTERIZATION》;20191031;全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111575618A (en) | 2020-08-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111940522B (en) | Method for processing high-strength cobalt-based GH6159 alloy cold-drawn material for aircraft engine fastener | |
| CN112831735B (en) | A kind of preparation method of high-strength aluminum alloy wire/strip | |
| CN111889598B (en) | TC4 titanium alloy forging material and preparation method thereof | |
| CN107955893B (en) | Forging forming method of aluminum alloy steering knuckle | |
| CN110229981B (en) | Forging forming method for aluminum alloy straight thrust rod joint | |
| CN105349925B (en) | A cold working process of Al-Mg alloy in liquid nitrogen temperature zone | |
| CN110629083B (en) | Marine 5083 aluminum alloy plate and preparation process thereof | |
| CN113174500B (en) | Method for improving O-state bending performance of 5083 alloy | |
| WO2010113333A1 (en) | Steel sheet for high‑strength container and manufacturing method thereof | |
| CN113088817B (en) | Seamless steel tube, preparation method thereof and oil cylinder | |
| CN111531177A (en) | A short process, low cost TC4 titanium alloy pipe preparation process | |
| CN107502841A (en) | A kind of method for improving zirconium and the high line aluminium alloy corrosion resistance of silicon 6000 of strontium compound microalloyed high magnesium | |
| CN111575618B (en) | A treatment method for reducing the cracking tendency of Al-Zn alloy rolled with large deformation amount | |
| CN110976512A (en) | Cold rolling method for TC4 titanium alloy wire | |
| CN108277445B (en) | Heat treatment method of 7075 aluminum alloy blind rivet body | |
| CN112813294B (en) | High-strength high-elasticity Ni-Cr-Co-W-based alloy wire and preparation method thereof | |
| CN115255021B (en) | Large-single-weight TC4 titanium disc round wire for aerospace fastener and preparation method thereof | |
| CN105441839A (en) | Processing technology for improving fatigue damage resistance of 2xxx series aluminium alloy plate | |
| CN114798999B (en) | Fine-grain high-strength plastic Ti80G forging and preparation method thereof | |
| CN114480811B (en) | A kind of high-strength plastic deposition medium manganese steel with gradient structure and its preparation method | |
| CN113862498B (en) | High-strength aluminum plate for cargo vehicle oil tank and production method thereof | |
| CN108118273B (en) | A method for improving the corrosion resistance of aluminum alloy | |
| CN112442641A (en) | High-strength crankshaft of engine and preparation method thereof | |
| CN114769947B (en) | A microalloying method to improve the strong plasticity matching of titanium alloy welding wires | |
| CN111589866B (en) | Manufacturing method of aluminum alloy base material for outer gear sleeve of automobile coupler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |