CN114921675B - Wear-resistant aluminum alloy and preparation method thereof - Google Patents
Wear-resistant aluminum alloy and preparation method thereof Download PDFInfo
- Publication number
- CN114921675B CN114921675B CN202210593995.1A CN202210593995A CN114921675B CN 114921675 B CN114921675 B CN 114921675B CN 202210593995 A CN202210593995 A CN 202210593995A CN 114921675 B CN114921675 B CN 114921675B
- Authority
- CN
- China
- Prior art keywords
- aluminum alloy
- percent
- temperature
- wear
- rolling
- 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
Classifications
-
- 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
- C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
- C22C21/08—Alloys based on aluminium with magnesium as the next major constituent with silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/03—Making non-ferrous alloys by melting using master alloys
-
- 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
- C22F1/047—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 magnesium as the next major constituent
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The invention provides a wear-resistant aluminum alloy and a preparation method thereof, and belongs to the technical field of aluminum alloys. A wear-resistant aluminum alloy is prepared from the following components in percentage by mass: mg:5.0 to 7.5 percent, si:2.3 to 4.2 percent of Mn:1.2 to 2.3 percent, cr:0.4 to 1.5 percent, B:0.08 to 0.15 percent, cd:0.05 to 0.12 percent, Y:0.01 to 0.1 percent, and the balance of Al and unavoidable impurities. According to the invention, the composition of the aluminum alloy is optimized, so that the component design of the Al-Mg-Si alloy is more reasonable, and meanwhile, the requirements of mechanical property and wear resistance are considered.
Description
Technical Field
The invention belongs to the technical field of aluminum-based alloy, and particularly relates to a wear-resistant aluminum alloy and a preparation method thereof.
Background
Aluminum alloy overhead conductors have been used for nearly 70 years, and the aluminum alloy used is mainly based on an A1-Mg-Si system, such as MJ, british Standard (BS), french standard (NF), international electrotechnical Commission standard (IEC), germany standard (DIN), american Material test Standard (ASTM), china mechanical industry Standard (JB/T8134-1997, JB/T8640-1997) and the like, and the strength and the conductivity of the A1-Mg-Si alloy conductor are specified in very detail by H1, so far, the performance of the A1-Mg-Si alloy conductor can be seen from the level of the national electric power development level.
Because the wire is exposed in the field environment for a long time, the wire is influenced by wind load, and abrasion occurs between the wire and the wire clamp and between the wire strands. The abrasion inevitably has influence on the surface condition and the conductivity of the wire, and then the corona of the wire is enhanced, the probability of wire strand breakage is increased, the line loss is increased, and even the wire breakage is caused. Therefore, enhancing the wear resistance of aluminum alloys is of great value and significance.
Abrasion is a necessary result of friction and is a phenomenon in which abrasive dust is separated from the surface of a material during friction and is continuously damaged. Statistics show that 30% of the world's energy loss is caused by wear, while China's economic loss caused by wear is as high as several billion yuan each year. With the development of industrial technology, there is a need for parts that are faster, more highly loaded, more precise, and capable of operating in more hostile environments, which place higher demands on the wear resistance of the materials.
CN106702227a discloses a wear-resistant aluminum alloy, which comprises the following components in percentage by weight: 10-12% Si; 8-12% of Mg;0.8 to 1.6 percent of Fe;0.3 to 0.7 percent of Mn;0.3 to 0.7 percent of Cr;0.05 to 0.1 percent of Sr; the balance being aluminum. The wear-resistant aluminum alloy has lower strength. CN108277400a discloses a method for preparing wear-resistant aluminium alloy material, which comprises, by weight, 8-10% silicon, 0.1-0.15% titanium, 0.5-0.8% boron, 0.08-0.1% manganese, 0.2-0.3% tungsten, 5-8% copper, 3-5% iron, 0.3-0.5 cobalt, 0.2-0.3% nickel, and the balance aluminium. The wear-resistant aluminum alloy has low strength and low conductivity.
Disclosure of Invention
The invention aims to solve the technical problem of providing an aluminum alloy material for improving the wear resistance of the aluminum alloy material aiming at the defects of the prior art.
In order to solve the technical problems, the invention adopts the following technical scheme:
a wear-resistant aluminum alloy is prepared from the following components in percentage by mass: mg:5.0 to 7.5 percent, si:2.3 to 4.2 percent of Mn:1.2 to 2.3 percent, cr:0.4 to 1.5 percent, B:0.08 to 0.15 percent, cd:0.05 to 0.12 percent, Y:0.01 to 0.1 percent, and the balance of Al and unavoidable impurities.
The Al-Mg-Si aluminum alloy is an alloy series commonly used in the electric power field, has high tensile strength and good conductivity, has good sag characteristic as a wire, and has general wear resistance. The main strengthening phase of the series of aluminum alloys is Mg 2 In a certain range, as the content of Mg and Si increases, the strength and hardness of the aluminum alloy are also improved. Meanwhile, research shows that Si in the aluminum alloy can improve the wear resistance, and the wear resistance of the aluminum alloy is improved along with the increase of the Si content; however, si with too high a content forms coarse and polygonal primary Si phases in the matrix, which hinders Mg 2 Si is formed, so that the matrix is split, and the mechanical property of the aluminum alloy is reduced. The invention optimizes the composition of the aluminum alloy, ensures that the component design of the Al-Mg-Si alloy is more reasonable, and simultaneously takes the mechanical property and the wear resistance into consideration.
Preferably, the wear-resistant aluminum alloy is prepared from the following components in percentage by mass: mg:5.3 to 6.5 percent, si:2.5 to 3.5 percent, mn:1.5 to 2.1 percent, cr:0.8 to 1.2 percent, B:0.10 to 0.15 percent, cd:0.07 to 0.10 percent, Y:0.03 to 0.08 percent, and the balance of Al and unavoidable impurities.
Preferably, the wear-resistant aluminum alloy is prepared from the following components in percentage by mass: mg:6.0%, si:3.1%, mn:1.8%, cr:1.0%, B:0.12%, cd:0.09%, Y:0.05%, the balance being Al and unavoidable impurities.
Preferably, the preparation method of the wear-resistant aluminum alloy comprises the following steps:
step S1: preparing raw materials according to a proportion, carrying out vacuum smelting, pouring molten liquid obtained by smelting into a mould, and rapidly cooling and forming to obtain a casting blank;
step S2: and sequentially carrying out homogenization treatment, hot rolling and artificial aging treatment on the casting blank to obtain the aluminum alloy.
Preferably, the smelting temperature is 810-905 ℃ and the time is 20-40 minutes, and the stirring speed is not lower than 500rpm within 0-10 minutes; after 10min, the stirring speed was controlled at 150-200rpm.
Preferably, the conditions of the homogenization treatment are: the temperature is 400-430 ℃, the temperature rising rate is 0.5-0.7 ℃/min, and the temperature is kept for 6-8 hours.
Preferably, the initial rolling temperature of the hot rolling is 500-540 ℃, the final rolling temperature is 385-410 ℃, the pass processing rate in the initial rolling stage is lower than 7%, the pass processing rate in the middle rolling stage is 30-35%, and the pass processing rate in the later rolling stage is 18-22%; after rolling, carrying out rapid cooling treatment, wherein the treatment parameters are as follows: cooling from 385-410 ℃ to below 100 ℃ at a cooling rate of 35-40 ℃/s; and then naturally cooling to 20-30 ℃.
Preferably, the temperature of the artificial aging treatment is 120-130 ℃ and the time is 8-10h.
Compared with the prior art, the invention has the following beneficial effects:
in the invention, 5.0-7.5% of Mg is added, the primary silicon and the eutectic silicon in the alloy are obviously thinned, the eutectic silicon is mainly in a short needle shape, the distribution is more uniform, the tensile strength of the alloy is obviously improved, and the wear resistance is also improved by the uniform distribution of microscopic phases; mg in alloy 2 The Si is separated out of the strengthening phase, so that the mechanical property of the aluminum alloy is obviously improved. However, too high Mg content coarsens the eutectic silicon phase, degrading mechanical properties. Therefore, mg and Si have synergistic effect, and the synergistic regulation effect is more obvious.
In addition, mn, cr, B, cd and Y added in the invention have reinforcing effects on the comprehensive properties of the aluminum alloy to different degrees. Wherein both Mn and Cr elements have the effect of preventing the recrystallization process of the aluminum alloy and refining grains, mn is mainly formed by MnAl 6 The compound dispersion particles have an obstacle effect on recrystallized grains, and can dissolve impurities in the melt so that the melt is purer; the Cr element is Al which forms dispersion distribution with Al and Mg in a specific homogenization treatment procedure of the aluminum alloy 18 Cr 2 Mg 3 The phase is prevented from nucleation and growth of the alloy recrystallization, the effect of refining grains is achieved, and the strength of the aluminum alloy is enhanced. The addition of B element can form metal boride with Cr element and Mn element, so that the conductivity of the aluminum alloy is improved, and the formed metal boride can improve the wear performance of the aluminum alloy. Cd element can be increasedThe strength of the aluminum alloy can be obviously improved under the specific aging treatment condition due to the strong aging strengthening effect, but the tensile strength of the aluminum alloy is reduced along with the increase of the content of Cd element, so that the tensile strength is controlled to be between 0.05 and 0.12 percent. Y has strengthening effect on grain refinement of the aluminum alloy, and can strengthen mechanical properties; meanwhile, 0.01 to 0.1 percent of Y is added, so that the conductivity of the aluminum alloy can be improved, second phase particles are formed on a matrix, the recrystallization of the alloy is inhibited, and the heat resistance of the alloy is improved.
In the process of smelting the aluminum alloy, the stirring method and the stirring parameters are adopted to cause more remarkable movement of the internal melt, so that the possibility is provided for the occurrence of grain free processes such as falling off, crushing, fusing, proliferation and the like, the columnar crystal area is effectively reduced or eliminated, and the refining effect is further improved. Meanwhile, in the heat treatment process, the high-temperature performance of the aluminum alloy is combined, the heat treatment is carried out by adopting a hot rolling process, and reasonable rolling temperature and pass processing rate are controlled, so that the surface quality of the material is further improved. The adoption of a rapid cooling treatment mode enables the rolled product to obtain larger supercooling degree, further enhances the refining and modification effects of crystal grains, and realizes the dual improvement of the mechanical property and the wear resistance of the aluminum alloy.
According to the invention, through adjusting the cooperative coordination of the alloy components and the heat treatment process thereof, the crystallization process of the melt and the solidification structure of the alloy can be effectively promoted, so that the mechanical property of the aluminum alloy material is improved, the wear resistance is obviously improved, and the aluminum alloy conductor material can adapt to more complex electricity utilization environments.
Detailed Description
For a better understanding of the present invention, the following examples are set forth to further illustrate the invention, but are not to be construed as limiting the invention. In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the invention may be practiced without one or more of these details.
In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values.
Unless otherwise indicated, all starting materials are from commercially available products and unless otherwise indicated, they do not contain other components not explicitly indicated except for unavoidable impurities.
Unless otherwise indicated, the operating environment for the steps not indicating the processing temperature is room temperature, typically 25.+ -. 5 ℃.
Example 1
A wear-resistant aluminum alloy is prepared from the following components in percentage by mass: mg:5.0%, si:2.3%, mn:1.2%, cr:0.4%, B:0.08%, cd:0.05%, Y:0.01%, the balance being Al and unavoidable impurities.
The preparation method comprises the following steps:
preparing raw materials according to the proportion, carrying out vacuum smelting at 810 ℃ for 40 minutes, and stirring at 500rpm for 0-10 minutes; pouring the molten liquid obtained by smelting into a mould at the stirring speed of 175rpm for 10-40min, and rapidly cooling and forming to obtain a casting blank;
heating to 400 ℃ according to the heating rate of 0.5 ℃/min, homogenizing, and keeping the temperature for 8 hours;
the initial rolling temperature of the hot rolling is 520 ℃, the final rolling temperature is 398 ℃, the pass processing rate of the initial rolling is 6%, the pass processing rate of the middle rolling is 32%, and the pass processing rate of the final rolling is 19%; after rolling, carrying out rapid cooling treatment, wherein the treatment parameters are as follows: cooling the temperature from 398 ℃ to 100 ℃ at a cooling speed of 38 ℃/s; then naturally cooling to 25 ℃;
heating to 130 ℃, preserving heat for 8 hours for aging treatment, and finally naturally cooling to obtain the aluminum alloy.
According to the invention, a water cooling mode can be selected for rapid cooling molding, and a cooling water channel is arranged on a common die, so that grains can be refined, segregation can be reduced, and the strength and tensile property of the aluminum alloy can be enhanced by adopting the rapid cooling mode.
In the homogenization treatment, the heat preservation time is controlled to be 6-8 hours, the elongation of the aluminum alloy is increased obviously, atoms in a structure are diffused fully, and the better the homogenization of crystal grains is, the better the comprehensive performance is.
Example 2
A wear-resistant aluminum alloy is prepared from the following components in percentage by mass: mg:7.5%, si:4.2%, mn:2.3%, cr:1.5%, B:0.15%, cd:0.12%, Y:0.1%, the balance being Al and unavoidable impurities.
The preparation method comprises the following steps:
preparing raw materials according to the proportion, carrying out vacuum smelting at 905 ℃ for 20 minutes at 0-10 minutes, and stirring at 600rpm; pouring the molten liquid obtained by smelting into a mould at the stirring speed of 150rpm for 10-20min, and rapidly cooling and forming to obtain a casting blank;
heating to 430 ℃ according to the heating rate of 0.7 ℃/min, homogenizing, and keeping the temperature for 6 hours;
the initial rolling temperature of the hot rolling is 500 ℃, the final rolling temperature is 385 ℃, the pass processing rate of the initial rolling is 5%, the pass processing rate of the middle rolling is 30%, and the pass processing rate of the final rolling is 18%; after rolling, carrying out rapid cooling treatment, wherein the treatment parameters are as follows: cooling the mixture from 385 ℃ to 95 ℃ at a cooling speed of 35 ℃/s; then naturally cooling to 25 ℃;
heating to 120 ℃, preserving heat for 10 hours, and naturally cooling to obtain the aluminum alloy.
Example 3
The wear-resistant aluminum alloy is prepared from the following components in percentage by mass: mg:5.3%, si:2.5%, mn:1.5%, cr:0.8%, B:0.10%, cd:0.07%, Y:0.03%, the balance being Al and unavoidable impurities.
The preparation method comprises the following steps:
preparing raw materials according to the proportion, carrying out vacuum smelting at 850 ℃ for 30 minutes at 0-10min, and stirring at 550rpm; pouring the molten liquid obtained by smelting into a mould at the stirring speed of 200rpm for 10-30min, and rapidly cooling and forming to obtain a casting blank;
heating to 415 ℃ according to the heating rate of 0.62 ℃/min, homogenizing, and keeping the temperature for 7 hours;
the initial rolling temperature of the hot rolling is 540 ℃, the final rolling temperature is 410 ℃, the pass processing rate of the initial rolling is 4%, the pass processing rate of the middle rolling is 35%, and the pass processing rate of the final rolling is 22%; after rolling, carrying out rapid cooling treatment, wherein the treatment parameters are as follows: cooling the mixture from 410 ℃ to 90 ℃ at a cooling speed of 40 ℃/s; then naturally cooling to 25 ℃;
heating to 125 ℃, preserving heat for 9h, and naturally cooling to obtain the aluminum alloy.
Example 4
The wear-resistant aluminum alloy is prepared from the following components in percentage by mass: mg:6.5%, si:3.5%, mn:2.1%, cr:1.2%, B:0.15%, cd:0.10%, Y:0.08%, the balance being Al and unavoidable impurities.
The preparation is described in example 1.
Example 5
The wear-resistant aluminum alloy is prepared from the following components in percentage by mass: mg:6.0%, si:3.1%, mn:1.8%, cr:1.0%, B:0.12%, cd:0.09%, Y:0.05%, the balance being Al and unavoidable impurities.
The preparation is described in example 1.
Comparative example 1
Unlike example 5, the mass percentage of Si was 5.0%.
Comparative example 2
Unlike example 5, mg:4.0%, si:1.5%.
Comparative example 3
Unlike example 5, the Y element was replaced with Zr.
Comparative example 4
Unlike example 5, the Cr element was replaced with V.
Comparative example 5
The composition of the wear-resistant aluminum alloy was the same as in example 5, and the production method was different from that of example 5 in that:
the initial rolling temperature of the hot rolling is 450 ℃, the final rolling temperature is 350 ℃, the pass processing rate of the initial rolling is 6%, the pass processing rate of the middle rolling is 15%, and the pass processing rate of the final rolling is 23%; after rolling, carrying out rapid cooling treatment, wherein the treatment parameters are as follows: the temperature was cooled from 398℃to 25℃at a cooling rate of 20℃per second.
Comparative example 6
The composition of the wear-resistant aluminum alloy was the same as in example 5, and the production method was different from that of example 5 in that:
preparing raw materials according to the proportion, and carrying out vacuum smelting at 780 ℃ for 50 minutes at the stirring rotation speed of 300rpm; pouring the molten liquid obtained by smelting into a mould, and rapidly cooling and forming to obtain a casting blank;
heating to 420 ℃ at a heating rate of 1.2 ℃/min, and carrying out homogenization treatment for 8 hours.
Evaluation of performance:
the aluminum alloys prepared in examples 1 to 5 and comparative examples 1 to 6 of the present invention were subjected to the following performance tests:
(1) Wear resistance: the test is carried out by using a model MMW-1 universal friction and wear testing machine, and the main technical indexes are as follows: the working range of the test force is 0-1000N, the relative error of the test force indication value is +/-1%, the measurement range of the friction torque is 0-2500 N.mm, the relative error of the friction torque indication value is +/-2%, and the rotating speed of the main shaft is 10-2000 r/min. The abrasion loss of each test sample is measured by an analytical balance with the precision of 0.1mg, and the measurement results are shown in Table 1.
(2) Mechanical properties: at room temperature of 25 ℃, an electronic universal testing machine is adopted, a tensile sample standard component is prepared according to the wire rod in GB/T228-2002, the diameter is more than or equal to 4mm, the gauge length of the tensile sample is 50mm, the inner diameter of the gauge length is 5mm, the test adopts uniform unidirectional displacement stretching, the stretching rate is 3mm/s, and the section 1 of the tensile test of the metal material in GB/T228.1-2010: the results of the room temperature test are shown in Table 1.
(3) Conductivity measurement: the measurement is carried out according to the GB/T12966-2008 aluminum alloy conductivity vortex test method, and the measurement results are shown in Table 1.
TABLE 1 results of Performance measurements
| Examples/items | Wear amount/mg | Tensile Strength/Mpa | Elongation at break/% | conductivity/%IACS |
| Example 1 | 3.9 | 258 | 3.5 | 57.5 |
| Example 2 | 3.2 | 265 | 3.3 | 57.2 |
| Example 3 | 3.7 | 261 | 3.4 | 57.6 |
| Example 4 | 3.5 | 267 | 3.3 | 57.3 |
| Example 5 | 3.5 | 273 | 3.1 | 57.8 |
| Comparative example 1 | 3.0 | 199 | 4.3 | 56.3 |
| Comparative example 2 | 5.1 | 224 | 3.9 | 56.8 |
| Comparative example 3 | 4.5 | 235 | 3.7 | 54.6 |
| Comparative example 4 | 4.7 | 218 | 4.1 | 56.5 |
| Comparative example 5 | 5.5 | 207 | 4.0 | 57.1 |
| Comparative example 6 | 5.2 | 226 | 3.5 | 57.0 |
The results in Table 1 show that the tensile strength of the aluminum alloy of the invention is more than 255Mpa, the elongation is more than 3.0%, the conductivity is more than 57%, and the abrasion loss is less than 4.0mm; meanwhile, as can be seen from the data of the above examples, in theory, the increase of Si element is beneficial to the improvement of wear resistance, but in the aluminum alloy composition, the change trend of the wear resistance of the aluminum alloy cannot be reasonably inferred by the content of Si element alone, and other elements also show synergistic influence.
The aluminum alloy of comparative example 1 has a property that, compared with the present invention, a single improvement in the mass percentage of Si element to 5.0% is advantageous for improvement of the wear property thereof, but has a limited improvement effect and causes a significant decrease in the strength of the aluminum alloy, so that an excessively high content of Si element in the composition of the aluminum alloy of the present invention is disadvantageous for improvement of the strength thereof, and is suitably controlled to be 5% or less, preferably 2.3 to 4.2%. The content of magnesium and silicon in the aluminum alloy in the comparative example 2 is reduced compared with the aluminum alloy in the invention, and the wear resistance and strength of the obtained aluminum alloy are obviously reduced, so that the aluminum alloy disclosed by the invention has 2.3-4.2% of Si and 5.0-7.5% of Mg, and the comprehensive performance of the aluminum alloy is improved. Comparative example 3 aluminum alloy uses Zr element with micro-alloying effect to replace Y, the content is unchanged, the strength and conductivity of the obtained aluminum alloy are inferior to those of example 5, and the effect of adding element Y in the invention is superior to Zr. Comparative example 4 aluminum alloy in which Cr element was replaced with V and the content was unchanged, the wear resistance and strength of the obtained aluminum alloy were remarkably inferior to those of example 5, demonstrating that the effect of V addition was demonstrated in the wear resistance and strength of the elemental Cr-added aluminum alloy of the present invention. Comparative examples 5 and 6 change the processing parameters of the various process steps in the preparation of the aluminum alloy, and the resulting aluminum alloy has a significant reduction in wear resistance and/or strength as compared to example 5.
In conclusion, the abrasion resistance of the aluminum alloy is improved closely related to alloy components and the content thereof, and the aluminum alloy material with balanced abrasion resistance, strength and conductivity is obtained through a scientific and reasonable preparation process and conditions thereof.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that the specific embodiments described are illustrative only and not intended to limit the scope of the invention, and that equivalent modifications and variations of the invention in light of the spirit of the invention will be covered by the claims of the present invention.
Claims (3)
1. A wear resistant aluminum alloy, characterized by: the composite material is prepared from the following components in percentage by mass: mg:5.0 to 6.5 percent, si:3.1 to 4.2 percent, mn:1.8 to 2.3 percent, cr:0.4 to 1.5 percent, B:0.08 to 0.15 percent, cd:0.07 to 0.12 percent, Y:0.01 to 0.08 percent, and the balance of Al and unavoidable impurities;
the preparation method of the wear-resistant aluminum alloy comprises the following steps:
step S1: preparing raw materials according to a proportion, carrying out vacuum smelting, pouring molten liquid obtained by smelting into a mould, and rapidly cooling and forming to obtain a casting blank; the smelting temperature is 810-905 ℃ and the time is 20-40 minutes, and the stirring rotating speed is not lower than 500rpm within 0-10 minutes; after 10min, controlling the stirring rotation speed to be 150-200 rpm;
step S2: sequentially carrying out homogenization treatment, hot rolling and artificial aging treatment on the casting blank to obtain an aluminum alloy;
the homogenization conditions are as follows: the temperature is 400-430 ℃, the temperature rising rate is 0.5-0.7 ℃/min, and the temperature is kept for 6-8 hours;
the initial rolling temperature of the hot rolling is 500-540 ℃, the final rolling temperature is 385-410 ℃, the pass processing rate in the initial rolling stage is lower than 7%, the pass processing rate in the middle rolling stage is 30-35%, and the pass processing rate in the later rolling stage is 18-22%; after rolling, carrying out rapid cooling treatment, wherein the treatment parameters are as follows: cooling the mixture from 385-410 ℃ to below 100 ℃ at a cooling speed of 35-40 ℃/s; and then naturally cooling to 20-30 ℃.
2. A wear resistant aluminum alloy as set forth in claim 1, wherein: the composite material is prepared from the following components in percentage by mass: mg:6.0%, si:3.1%, mn:1.8%, cr:1.0%, B:0.12%, cd:0.09%, Y:0.05%, the balance being Al and unavoidable impurities.
3. A wear resistant aluminum alloy as set forth in claim 1, wherein: the temperature of the artificial aging treatment is 120-130 ℃ and the time is 8-10h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210593995.1A CN114921675B (en) | 2022-05-27 | 2022-05-27 | Wear-resistant aluminum alloy and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210593995.1A CN114921675B (en) | 2022-05-27 | 2022-05-27 | Wear-resistant aluminum alloy and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114921675A CN114921675A (en) | 2022-08-19 |
| CN114921675B true CN114921675B (en) | 2023-09-08 |
Family
ID=82809794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210593995.1A Active CN114921675B (en) | 2022-05-27 | 2022-05-27 | Wear-resistant aluminum alloy and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114921675B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104846243A (en) * | 2015-05-26 | 2015-08-19 | 安徽电气集团股份有限公司 | Moderate-intensity anti-corrosion aluminium alloy material and aluminium alloy rod for cable |
| CN105063452A (en) * | 2015-07-27 | 2015-11-18 | 滁州市昊宇滑动轴承有限公司 | Manufacturing method of corrosion-resistant vacuum screw |
| CN107557621A (en) * | 2017-08-31 | 2018-01-09 | 国网河南省电力公司西峡县供电公司 | It is a kind of suitable for aluminium alloy conductor of overhead transmission line and preparation method thereof |
| CN110042279A (en) * | 2019-05-21 | 2019-07-23 | 国网河南省电力公司方城县供电公司 | A kind of aluminum-alloy conductor material and preparation method thereof |
| CN110093542A (en) * | 2019-05-07 | 2019-08-06 | 苏州慧驰轻合金精密成型科技有限公司 | Plate diecasting alloys material and preparation method in a kind of high yield high-elongation mobile phone |
| CN110218918A (en) * | 2019-07-30 | 2019-09-10 | 国网河南省电力公司电力科学研究院 | High conductivity, heat-resisting aluminium alloy and preparation method thereof |
| CN110592442A (en) * | 2019-10-25 | 2019-12-20 | 厦门市佳嘉达机械有限公司 | Low-heat-conductivity high-toughness aluminum-manganese-cobalt series die-casting aluminum alloy and processing technology thereof |
| CN111690852A (en) * | 2019-03-13 | 2020-09-22 | 苏州慧驰轻合金精密成型科技有限公司 | Die-casting alloy material for high-yield high-elongation mobile phone middle plate and preparation method thereof |
| CN113278855A (en) * | 2021-05-27 | 2021-08-20 | 陆伟凤 | Corrosion-resistant aluminum alloy die casting containing rare earth elements |
-
2022
- 2022-05-27 CN CN202210593995.1A patent/CN114921675B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104846243A (en) * | 2015-05-26 | 2015-08-19 | 安徽电气集团股份有限公司 | Moderate-intensity anti-corrosion aluminium alloy material and aluminium alloy rod for cable |
| CN105063452A (en) * | 2015-07-27 | 2015-11-18 | 滁州市昊宇滑动轴承有限公司 | Manufacturing method of corrosion-resistant vacuum screw |
| CN107557621A (en) * | 2017-08-31 | 2018-01-09 | 国网河南省电力公司西峡县供电公司 | It is a kind of suitable for aluminium alloy conductor of overhead transmission line and preparation method thereof |
| CN111690852A (en) * | 2019-03-13 | 2020-09-22 | 苏州慧驰轻合金精密成型科技有限公司 | Die-casting alloy material for high-yield high-elongation mobile phone middle plate and preparation method thereof |
| CN110093542A (en) * | 2019-05-07 | 2019-08-06 | 苏州慧驰轻合金精密成型科技有限公司 | Plate diecasting alloys material and preparation method in a kind of high yield high-elongation mobile phone |
| CN110042279A (en) * | 2019-05-21 | 2019-07-23 | 国网河南省电力公司方城县供电公司 | A kind of aluminum-alloy conductor material and preparation method thereof |
| CN110218918A (en) * | 2019-07-30 | 2019-09-10 | 国网河南省电力公司电力科学研究院 | High conductivity, heat-resisting aluminium alloy and preparation method thereof |
| CN110592442A (en) * | 2019-10-25 | 2019-12-20 | 厦门市佳嘉达机械有限公司 | Low-heat-conductivity high-toughness aluminum-manganese-cobalt series die-casting aluminum alloy and processing technology thereof |
| CN113278855A (en) * | 2021-05-27 | 2021-08-20 | 陆伟凤 | Corrosion-resistant aluminum alloy die casting containing rare earth elements |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114921675A (en) | 2022-08-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113106290B (en) | High-performance tin-phosphor bronze strip and preparation method thereof | |
| CN108588555B (en) | Alloy steel for overhead conductor, preparation method of alloy steel and overhead conductor | |
| CN111020283A (en) | Copper alloy strip for plug-in and preparation method thereof | |
| CN111826558A (en) | Aluminum-magnesium-silicon alloy monofilament and preparation method thereof | |
| CN105489263A (en) | Ultra-fine aluminum magnesium alloy filament material and preparation method thereof | |
| CN105755335A (en) | High-strength and high-abrasion-resistant low-expansion-coefficient aluminum-based alloy | |
| CN111793758A (en) | High-conductivity heat-resistant aluminum alloy monofilament for overhead conductor and preparation method thereof | |
| CN113737065B (en) | Aluminum alloy, preparation method and application | |
| CN114921675B (en) | Wear-resistant aluminum alloy and preparation method thereof | |
| CN108842103B (en) | Aluminum-based alloy with high wear resistance, high temperature resistance and low expansion coefficient | |
| CN112458332B (en) | Titanium bronze alloy bar and preparation method and application thereof | |
| CN114672698A (en) | Heat-resistant aluminum alloy single wire and manufacturing method thereof | |
| CN115198138A (en) | Copper alloy strip and preparation method thereof | |
| CN110735069B (en) | High-conductivity medium-strength all-aluminum alloy energy-saving lead and preparation method thereof | |
| CN114990395A (en) | High-strength wrought aluminum alloy containing rare earth elements and preparation method thereof | |
| CN115029593A (en) | Composite rare earth-added heat-resistant aluminum alloy and preparation method thereof | |
| RU2696797C2 (en) | Aluminum-zirconium alloy | |
| CN115198137B (en) | High-performance bismuth brass alloy material for mobile phone lens | |
| CN112609104A (en) | Novel semi-continuous metal casting process of heat-resistant copper alloy and application thereof | |
| CN110643843A (en) | Soft aluminum wire and preparation method thereof | |
| CN109207759B (en) | Non-aging type high-strength high-conductivity aluminum alloy overhead conductor and preparation method thereof | |
| CN113201670B (en) | Anti-softening aluminum alloy material, anti-softening aluminum alloy wire and preparation method thereof | |
| CN111270113B (en) | Production process of 5052 aluminum alloy plate with low earing rate | |
| CN115011848B (en) | High-purity aluminum alloy conductor and preparation method thereof | |
| CN112853177B (en) | Nanocrystalline aluminum alloy and preparation method and application thereof |
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 |