CN111996422A - High-performance aluminum alloy ingot for automobile hub and preparation method of aluminum alloy ingot - Google Patents
High-performance aluminum alloy ingot for automobile hub and preparation method of aluminum alloy ingot Download PDFInfo
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- CN111996422A CN111996422A CN202010871081.8A CN202010871081A CN111996422A CN 111996422 A CN111996422 A CN 111996422A CN 202010871081 A CN202010871081 A CN 202010871081A CN 111996422 A CN111996422 A CN 111996422A
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- aluminum alloy
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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
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
- C22C21/04—Modified aluminium-silicon alloys
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D7/00—Casting ingots, e.g. from ferrous metals
- B22D7/005—Casting ingots, e.g. from ferrous metals from non-ferrous metals
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- 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
- C22C1/026—Alloys based on aluminium
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- 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
- C22C1/06—Making non-ferrous alloys with the use of special agents for refining or deoxidising
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Abstract
The invention belongs to the field of aluminum alloy ingot processing, and discloses an aluminum alloy ingot for a high-performance automobile hub and a preparation method thereof, wherein the aluminum alloy ingot for the high-performance automobile hub comprises the following components in percentage by mass: 1.2-2.0% of Si, 0.05-0.2% of Mn, 0.05-0.1% of Cr, 1.0-1.6% of Mg, 0.5-0.8% of Cu, 0.1-0.3% of Zn, 0.3-0.42% of Ti, 0.05-0.2% of Nd, 0.1-0.2% of Er, 0.2-0.6% of Ga and the balance of Al; the preparation method comprises the steps of melting, refining, standing, casting ingots, and finally casting aluminum alloy ingot finished products with the diameter of 50mm and the height of 30mm, wherein the aluminum alloy ingot finished products are prepared from the aluminum alloy material for the wheel hub. The invention can perform the functions of modification and refinement on the aluminum alloy ingot, remarkably improve the mechanical property, ensure that the strength, the wear resistance and the fatigue resistance of the aluminum alloy ingot meet the industrial requirements, greatly improve the strength of the hub, accurately control the temperature in the processing process to ensure the quality of the hub, can be used for the application of the aluminum alloy hub and improve the mechanical strength of the aluminum alloy hub.
Description
Technical Field
The invention belongs to the field of aluminum alloy ingot processing, and particularly relates to a high-performance aluminum alloy ingot for an automobile hub and a preparation method of the aluminum alloy ingot.
Background
The hub is one of the most important safety parts on the automobile, the hub bears the pressure of the mass action of the automobile and the load and is acted by the dynamic torque of the automobile during starting and braking, the automobile has strict requirements on the performance of the hub material, such as light weight, high strength, wear resistance, good impact toughness and the like, at present, most of high-performance automobiles adopt aluminum alloy hubs, the production process of the aluminum alloy hubs is mature, but the known aluminum alloy hub material considers casting performance and fatigue resistance too much, and the higher requirement of the development of the automobile industry is difficult to meet in the aspect of impact toughness.
Disclosure of Invention
In order to solve the technical problems in the prior art, the invention provides an aluminum alloy ingot for a high-performance automobile hub, which comprises the following components in percentage by mass: 1.2-2.0% of Si, 0.05-0.2% of Mn, 0.05-0.1% of Cr, 1.0-1.6% of Mg, 0.5-0.8% of Cu, 0.1-0.3% of Zn, 0.3-0.42% of Ti, 0.05-0.2% of Nd, 0.1-0.2% of Er, 0.2-0.6% of Ga and the balance of Al.
Preferably, the aluminum alloy ingot comprises the following components in percentage by mass: 1.6% of Si, 0.125% of Mn, 0.075% of Cr, 1.3% of Mg, 0.65% of Cu, 0.2% of Zn, 0.36% of Ti, 0.125% of Nd, 0.15% of Er, 0.4% of Ga and the balance of Al.
Preferably, the aluminum alloy ingot comprises the following components in percentage by mass: 2.0% of Si, 0.05% of Mn, 0.1% of Cr, 1.6% of Mg, 0.5% of Cu, 0.2% of Zn, 0.3% of Ti, 0.1% of Nd, 0.1% of Er, 0.6% of Ga and the balance of Al.
The preparation method of the aluminum alloy ingot for the high-performance automobile hub comprises the following steps:
1) melting: weighing metal materials according to the weight percentage, melting an aluminum raw material, magnesium and silicon components and a covering agent in a melting furnace to 700 ℃, then adding other alloy components except the aluminum, the magnesium and the silicon, continuously heating to 750 ℃, keeping the temperature fixed after all the alloy elements are melted, and melting for 1h to obtain an aluminum alloy molten liquid;
2) refining: adjusting the temperature of the aluminum alloy melt to 710 ℃, adding a refining agent for refining, then heating to 750 ℃, introducing argon for further degassing and refining, and slagging off after refining;
3) standing: standing the refined aluminum alloy melt until the temperature of the aluminum alloy melt is reduced to 700 ℃;
4) ingot casting: and (3) carrying out forming casting on the aluminum alloy melt processed in the step 3) through a casting machine, wherein in the casting process, the casting speed is controlled at 70mm/min, the water pressure of cooling water is controlled at 0.1MPa, and finally, an aluminum alloy ingot finished product with the diameter of 50mm and the height of 30mm is cast to be the prepared aluminum alloy material for the wheel hub.
Has the advantages that:
the invention can perform the functions of modification and refinement on the aluminum alloy ingot, remarkably improve the mechanical property, ensure that the strength, the wear resistance and the fatigue resistance of the aluminum alloy ingot meet the industrial requirements, greatly improve the strength of the hub, accurately control the temperature in the processing process to ensure the quality of the hub, can be used for the application of the aluminum alloy hub and improve the mechanical strength of the aluminum alloy hub.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects solved by the present invention more apparent, the present invention is further described in detail below with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
The aluminum alloy ingot for the high-performance automobile hub comprises the following components in percentage by mass: 1.6% of Si, 0.125% of Mn, 0.075% of Cr, 1.3% of Mg, 0.65% of Cu, 0.2% of Zn, 0.36% of Ti, 0.125% of Nd, 0.15% of Er, 0.4% of Ga and the balance of Al.
The preparation method of the aluminum alloy ingot for the high-performance automobile hub comprises the following steps:
1) melting: weighing metal materials according to the weight percentage, melting an aluminum raw material, magnesium and silicon components and a covering agent in a melting furnace to 700 ℃, then adding other alloy components except the aluminum, the magnesium and the silicon, continuously heating to 750 ℃, keeping the temperature fixed after all the alloy elements are melted, and melting for 1h to obtain an aluminum alloy molten liquid;
2) refining: adjusting the temperature of the aluminum alloy melt to 710 ℃, adding a refining agent for refining, then heating to 750 ℃, introducing argon for further degassing and refining, and slagging off after refining;
3) standing: standing the refined aluminum alloy melt until the temperature of the aluminum alloy melt is reduced to 700 ℃;
4) ingot casting: and (3) carrying out forming casting on the aluminum alloy melt processed in the step 3) through a casting machine, wherein in the casting process, the casting speed is controlled at 70mm/min, the water pressure of cooling water is controlled at 0.1MPa, and finally, an aluminum alloy ingot finished product with the diameter of 50mm and the height of 30mm is cast to be the prepared aluminum alloy material for the wheel hub.
Example 2
The aluminum alloy ingot for the high-performance automobile hub comprises the following components in percentage by mass: 2.0% of Si, 0.05% of Mn, 0.1% of Cr, 1.6% of Mg, 0.5% of Cu, 0.2% of Zn, 0.3% of Ti, 0.1% of Nd, 0.1% of Er, 0.6% of Ga and the balance of Al.
The preparation method of the aluminum alloy ingot for the high-performance automobile hub comprises the following steps:
1) melting: weighing metal materials according to the weight percentage, melting an aluminum raw material, magnesium and silicon components and a covering agent in a melting furnace to 700 ℃, then adding other alloy components except the aluminum, the magnesium and the silicon, continuously heating to 750 ℃, keeping the temperature fixed after all the alloy elements are melted, and melting for 1h to obtain an aluminum alloy molten liquid;
2) refining: adjusting the temperature of the aluminum alloy melt to 710 ℃, adding a refining agent for refining, then heating to 750 ℃, introducing argon for further degassing and refining, and slagging off after refining;
3) standing: standing the refined aluminum alloy melt until the temperature of the aluminum alloy melt is reduced to 700 ℃;
4) ingot casting: and (3) carrying out forming casting on the aluminum alloy melt processed in the step 3) through a casting machine, wherein in the casting process, the casting speed is controlled at 70mm/min, the water pressure of cooling water is controlled at 0.1MPa, and finally, an aluminum alloy ingot finished product with the diameter of 50mm and the height of 30mm is cast to be the prepared aluminum alloy material for the wheel hub.
Comparative example
An aluminum alloy ingot for a high-performance automobile hub comprises the following components in percentage by mass: 1.0% of Si, 0.3% of Mn, 0.2% of Cr, 1.8% of Mg, 0.4% of Cu, 0.4% of Zn, 0.5% of Ti, 0.3% of Nd, 0.3% of Er, 0.7% of Ga and the balance of Al.
The preparation method of the aluminum alloy ingot for the high-performance automobile hub comprises the following steps:
1) melting: weighing metal materials according to the weight percentage, melting an aluminum raw material, magnesium and silicon components and a covering agent in a melting furnace to 700 ℃, then adding other alloy components except the aluminum, the magnesium and the silicon, continuously heating to 750 ℃, keeping the temperature fixed after all the alloy elements are melted, and melting for 1h to obtain an aluminum alloy molten liquid;
2) refining: adjusting the temperature of the aluminum alloy melt to 710 ℃, adding a refining agent for refining, then heating to 750 ℃, introducing argon for further degassing and refining, and slagging off after refining;
3) standing: standing the refined aluminum alloy melt until the temperature of the aluminum alloy melt is reduced to 700 ℃;
4) ingot casting: and (3) carrying out forming casting on the aluminum alloy melt processed in the step 3) through a casting machine, wherein in the casting process, the casting speed is controlled at 70mm/min, the water pressure of cooling water is controlled at 0.1MPa, and finally, an aluminum alloy ingot finished product with the diameter of 50mm and the height of 30mm is cast to be the prepared aluminum alloy material for the wheel hub.
The compressive strength, tensile strength and yield strength of the aluminum alloy ingot materials of the above examples and comparative examples were as follows:
| examples1 | Example 2 | Comparative example | |
| Compressive strength (MPa) | 780 | 849 | 658 |
| Tensile Strength (MPa) | 730 | 822 | 634 |
| Yield strength (MPa) | 711 | 766 | 608 |
From the above-mentioned table data, it can be seen that the mechanical strength of the comparative example is much lower than that of the examples, and the mechanical properties of the prepared aluminum alloy material for wheel hubs are significantly improved.
When an element is referred to as being "secured to" or "disposed on" another element, it can be directly on or indirectly connected to the other element, or when an element is referred to as being "connected" to the other element, it can be directly connected to the other element or indirectly connected to the other element.
The terms of orientation such as left, right, up, down, etc. in the present embodiment are only relative concepts or reference to the normal use state of the product, and should not be considered as limiting.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (4)
1. The utility model provides a high performance aluminum alloy ingot for automobile wheel hub which characterized in that: the mass percentages of the components are respectively as follows: 1.2-2.0% of Si, 0.05-0.2% of Mn, 0.05-0.1% of Cr, 1.0-1.6% of Mg, 0.5-0.8% of Cu, 0.1-0.3% of Zn, 0.3-0.42% of Ti, 0.05-0.2% of Nd, 0.1-0.2% of Er, 0.2-0.6% of Ga and the balance of Al.
2. The aluminum alloy ingot for the high-performance automobile hub according to claim 1, characterized in that: the aluminum alloy ingot comprises the following components in percentage by mass: 1.6% of Si, 0.125% of Mn, 0.075% of Cr, 1.3% of Mg, 0.65% of Cu, 0.2% of Zn, 0.36% of Ti, 0.125% of Nd, 0.15% of Er, 0.4% of Ga and the balance of Al.
3. The aluminum alloy ingot for the high-performance automobile hub according to claim 1, characterized in that: the aluminum alloy ingot comprises the following components in percentage by mass: 2.0% of Si, 0.05% of Mn, 0.1% of Cr, 1.6% of Mg, 0.5% of Cu, 0.2% of Zn, 0.3% of Ti, 0.1% of Nd, 0.1% of Er, 0.6% of Ga and the balance of Al.
4. The method for preparing the aluminum alloy ingot for the high-performance automobile hub according to claim 1, is characterized in that: the method comprises the following steps:
1) melting: weighing metal materials according to the weight percentage, melting an aluminum raw material, magnesium and silicon components and a covering agent in a smelting furnace to 700 ℃, then adding other alloy components except the aluminum, the magnesium and the silicon, continuously heating to 750 ℃, keeping the temperature fixed after all the alloy elements are melted, and smelting for 1h to obtain an aluminum alloy melt;
2) refining: adjusting the temperature of the aluminum alloy melt to 710 ℃, adding a refining agent for refining, then heating to 750 ℃, introducing argon for further degassing and refining, and slagging off after refining;
3) standing: standing the refined aluminum alloy melt until the temperature of the aluminum alloy melt is reduced to 700 ℃;
4) ingot casting: and (3) carrying out forming casting on the aluminum alloy melt processed in the step 3) through a casting machine, wherein in the casting process, the casting speed is controlled at 70mm/min, the water pressure of cooling water is controlled at 0.1MPa, and finally, an aluminum alloy ingot finished product with the diameter of 50mm and the height of 30mm is cast to be the prepared aluminum alloy material for the wheel hub.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010871081.8A CN111996422A (en) | 2020-08-26 | 2020-08-26 | High-performance aluminum alloy ingot for automobile hub and preparation method of aluminum alloy ingot |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010871081.8A CN111996422A (en) | 2020-08-26 | 2020-08-26 | High-performance aluminum alloy ingot for automobile hub and preparation method of aluminum alloy ingot |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112921215A (en) * | 2021-01-19 | 2021-06-08 | 江苏大学 | Automobile hub aluminum alloy capable of being processed by casting spinning and forging spinning, preparation method, automobile hub and preparation method thereof |
| CN113265570A (en) * | 2021-04-08 | 2021-08-17 | 慈溪市宜美佳铝业有限公司 | Aluminum alloy material for automobile hub and preparation method thereof |
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| CN105695813A (en) * | 2016-01-27 | 2016-06-22 | 广西平果铝合金精密铸件有限公司 | Aluminum alloy ingot special for automobile hub and preparation method of aluminum alloy ingot |
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2020
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| CN105695813A (en) * | 2016-01-27 | 2016-06-22 | 广西平果铝合金精密铸件有限公司 | Aluminum alloy ingot special for automobile hub and preparation method of aluminum alloy ingot |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112921215A (en) * | 2021-01-19 | 2021-06-08 | 江苏大学 | Automobile hub aluminum alloy capable of being processed by casting spinning and forging spinning, preparation method, automobile hub and preparation method thereof |
| CN112921215B (en) * | 2021-01-19 | 2022-02-15 | 江苏大学 | Automobile hub aluminum alloy capable of being processed by casting spinning and forging spinning, preparation method, automobile hub and preparation method thereof |
| CN113265570A (en) * | 2021-04-08 | 2021-08-17 | 慈溪市宜美佳铝业有限公司 | Aluminum alloy material for automobile hub and preparation method thereof |
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Application publication date: 20201127 |