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A kind of aluminum alloy and its extrusion casting method and equipment

A squeeze casting and aluminum alloy technology, which is applied in the field of aluminum alloy squeeze casting, can solve problems such as low strength, unstable size, and difficult operation of aluminum alloys, and achieve uniform distribution of elements, elimination of element segregation, convenient and safe operation Effect

Active Publication Date: 2022-06-28
山东宏和轻量化科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The problem solved by the present invention is that the aluminum alloy in the prior art has low strength and unstable size, and in the aluminum alloy extrusion manufacturing process, when materials with low density need to be put into the melt, it is easy to float above the liquid surface, Therefore, it is necessary to manually use tools to press into the liquid surface, which is difficult to operate, time-consuming and labor-intensive, and there is at least one aspect of major safety hazards

Method used

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  • A kind of aluminum alloy and its extrusion casting method and equipment
  • A kind of aluminum alloy and its extrusion casting method and equipment
  • A kind of aluminum alloy and its extrusion casting method and equipment

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Embodiment 1

[0054] This embodiment provides an aluminum alloy, and the aluminum alloy includes the following components by mass percentage: Cu: 4%, Zn: 0.1%, Si: 8%, Fe: 0.1%, Mn: 0.05%, Mg: 0.2%, Al-Ti-B: 0.1%, Al-RE: 0.02%, the balance is aluminum and inevitable impurities, and the impurity content is less than 0.5%.

[0055] The preparation method of aluminum alloy in the present embodiment comprises the following steps:

[0056] 1. Add pure aluminum ingots to the metal melting furnace, heat it up to 730 °C, and melt it into molten aluminum;

[0057] 2. Add pure zinc ingots, aluminum-copper alloys, aluminum-manganese alloys and pure magnesium ingots wrapped by aluminum-copper alloys to the obtained aluminum liquid, and after electromagnetic stirring for 10 minutes, obtain a first premixed solution;

[0058] 3. Put the quick-melting silicon into the first premixed liquid uniformly. After the reaction is complete, control the temperature of the molten aluminum to be 730 °C, and then int...

Embodiment 2

[0061] This embodiment provides an aluminum alloy. The aluminum alloy includes the following components by mass percentage: Cu: 5%, Zn: 0.2%, Si: 7%, Fe: 0.2%, Mn: 0.1%, Mg: 0.3%, Al-Ti-B: 0.15%, Al-RE: 0.03%, the balance is aluminum and inevitable impurities, and the impurity content is less than 0.5%.

[0062] The preparation method of aluminum alloy in the present embodiment comprises the following steps:

[0063] 1. Add pure aluminum ingots to the metal melting furnace, heat it up to 750 °C, and melt it into molten aluminum;

[0064] 2. Add pure zinc ingots, aluminum-copper alloys, aluminum-manganese alloys and pure magnesium ingots wrapped by aluminum-copper alloys to the obtained aluminum liquid, and after electromagnetic stirring for 15 minutes, obtain the first premixed solution;

[0065] 3. Put the quick-melting silicon into the first premixed liquid uniformly. After the reaction is complete, control the temperature of the molten aluminum to be 750 °C, and then intro...

Embodiment 3

[0068] This embodiment provides an aluminum alloy, and the aluminum alloy includes the following components by mass percentage: Cu: 6%, Zn: 0.3%, Si: 10%, Fe: 0.3%, Mn: 0.2%, Mg: 0.5%, Al-Ti-B: 0.25%, Al-RE: 0.05%, the balance is aluminum and inevitable impurities, and the impurity content is less than 0.5%.

[0069] The preparation method of aluminum alloy in the present embodiment comprises the following steps:

[0070] 1. Add pure aluminum ingots to the metal melting furnace, heat it up to 780 °C, and melt it into molten aluminum;

[0071] 2. Add pure zinc ingots, aluminum-copper alloys, aluminum-manganese alloys and pure magnesium ingots wrapped by aluminum-copper alloys to the obtained aluminum liquid, and after electromagnetic stirring for 20min, obtain a first premixed solution;

[0072]3. Put the fast-melting silicon into the first premix evenly. After the reaction is complete, control the temperature of the molten aluminum to be 780°C, and then introduce an inert gas...

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Abstract

The invention provides an aluminum alloy and its squeeze casting method and equipment, which belong to the technical field of aluminum alloy squeeze casting. Melting into molten aluminum; adding pure zinc ingots, aluminum-copper alloys, aluminum-manganese alloys and pure magnesium ingots wrapped in aluminum-copper alloy sheaths to the molten aluminum, and stirring electromagnetically for 10-20 minutes to obtain the first premixed solution; The molten silicon is put into the first premixed solution, and degassing treatment is carried out after the reaction is complete. After standing still, Al-Ti-B intermediate alloy and Al-RE mixed light rare earth are added, kept for 30-80min, and left standing after stirring to obtain molten silicon. body; the melt is defoamed and slag removed, and poured in an oscillating magnetic field to obtain a casting, which is cooled to room temperature and subjected to solid solution and aging treatment to obtain an aluminum alloy. The invention can avoid the unfavorable melting situation caused by floating to above the liquid level when the magnesium is fed alone due to its low density, and can obtain the tensile strength of the aluminum alloy ≥ 480 MPa, and the elongation rate ≥ 6%.

Description

technical field [0001] The invention relates to the technical field of aluminum alloy extrusion casting, in particular to an aluminum alloy and a method and equipment for extrusion casting thereof. Background technique [0002] Aluminum alloys are currently the most attractive and promising metal structural materials due to their abundant resources, remarkably low density and high specific strength. The existing die-casting technology mainly uses Al-Si series materials for die-casting. Since Si element is the main component to improve the fluidity, the best fluidity can be obtained from eutectic to hypereutectic, and the tensile strength and hardness can be improved. , machinability and strength at high temperature, but the material performance is limited and cannot meet the application conditions that require higher strength. In the aluminum alloy, copper is dissolved in solid solution, the mechanical properties can be improved, the machinability is improved, but the corro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/03C22C1/06C22F1/043C22C21/02B22D18/02F27B14/16
CPCC22C1/03C22C1/026C22C1/06C22F1/043C22C21/02B22D18/02B22D27/02F27B14/0806F27B2014/0812
Inventor 杨鹏陆阳程健周瑞俭王源源
Owner 山东宏和轻量化科技有限公司
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