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A kind of die-casting aluminum alloy applied to motor casing and preparation method thereof

A technology for casting aluminum alloy and motor housing, applied in the field of aluminum alloy, can solve the problems of increasing the cost of aluminum alloy, restricting the use of aluminum alloy, expensive rare earth modifier, etc., and achieves low cost, excellent corrosion resistance and wear resistance. Performance, reasonable design effect

Active Publication Date: 2022-07-12
肇庆南都再生铝业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] However, according to the above prior art, it can be seen that in order to improve the performance of the aluminum alloy, it is often necessary to add a rare earth modifier to the components, thereby improving the mechanical properties of the aluminum alloy, and significantly improving the yield strength, tensile strength and elongation. However, the price of rare earth modifiers is relatively expensive, which will increase the cost of aluminum alloys to a certain extent, thereby limiting the use of aluminum alloys. Therefore, it is necessary to provide a die-casting aluminum alloy that can meet the requirements of mechanical properties, but is cheap and has a wide range of applications.

Method used

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  • A kind of die-casting aluminum alloy applied to motor casing and preparation method thereof
  • A kind of die-casting aluminum alloy applied to motor casing and preparation method thereof
  • A kind of die-casting aluminum alloy applied to motor casing and preparation method thereof

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Embodiment 1

[0038] Embodiment 1 A kind of die-casting aluminum alloy applied to motor housing

[0039] The chemical composition of the 0.5 ton alloy prepared by mass percentage includes: the content of Si is 10.62%, the content of Cu is 0.06%, the content of Fe is 0.72%, the content of Mn is 0.31%, the content of Ti is 0.12%, and the content of Mg is 0.12%. 0.2%, Pb content is 0.09%, Sn content is 0.05% and the rest is Al.

[0040] The preparation method is:

[0041] (1) proportion according to the formula, add the aluminum ingot whose mass fraction is 70% into the smelting furnace, then put the prepared Fe, Mn, Cu, Ti, Pb materials into the smelting furnace, heat up and dissolve, and obtain mixture A;

[0042] (2) after the mixture A is completely melted in the furnace, first add the aluminum ingot of the remaining mass, then add silicon metal, and stir the melt, and heat up simultaneously to obtain the melt B;

[0043] (3) Add the remaining Mg and Sn raw materials to the solution B, a...

Embodiment 2

[0046] Embodiment 2 A kind of die-casting aluminum alloy applied to motor housing

[0047] The chemical composition of the 0.5 ton alloy prepared by mass percentage includes: the content of Si is 10.98%, the content of Cu is 0.07%, the content of Fe is 0.61%, the content of Mn is 0.40%, the content of Ti is 0.10%, and the content of Mg is 0.10%. 0.3%, Pb content is 0.09%, Sn content is 0.05% and the rest is Al.

[0048] The preparation method is:

[0049] (1) proportion according to the formula, add the aluminum ingot whose mass fraction is 90% into the smelting furnace, then put the prepared Fe, Mn, Cu, Ti, Pb materials into the smelting furnace, heat up and dissolve, and obtain mixture A;

[0050] (2) after the mixture A is completely melted in the furnace, first add the aluminum ingot of the remaining mass, then add silicon metal, and stir the melt, and heat up simultaneously to obtain the melt B;

[0051] (3) Add the remaining Mg and Sn raw materials to the solution B, a...

Embodiment 3

[0053] Embodiment 3 A kind of die-casting aluminum alloy applied to the motor casing

[0054] The chemical composition of the 0.5 ton alloy prepared by mass percentage includes: the content of Si is 10.82%, the content of Cu is 0.08%, the content of Fe is 0.82%, the content of Mn is 0.51%, the content of Ti is 0.08%, and the content of Mg is 0.08%. 0.4%, Pb content is 0.08%, Sn content is 0.05%, and the rest is Al.

[0055] The preparation method is:

[0056] (1) proportion according to the formula, add the aluminum ingot whose mass fraction is 75% into the smelting furnace, then put the prepared Fe, Mn, Cu, Ti, Pb materials into the smelting furnace, heat up and dissolve, and obtain mixture A;

[0057] (2) after the mixture A is completely melted in the furnace, first add the aluminum ingot of the remaining mass, then add silicon metal, and stir the melt, and heat up simultaneously to obtain the melt B;

[0058] (3) Add the remaining Mg and Sn raw materials to the solution ...

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Abstract

The invention provides a die-casting aluminum alloy applied to a motor casing and a preparation method thereof, belonging to the technical field of aluminum alloys. Its chemical composition in mass percentage includes: the content of Si is 10.5-11.0%, the content of Cu is 0.05-0.1%, the content of Fe is 0.60-0.90%, the content of Mn is 0.20-0.55%, and the content of Ti is 0.06% ‑0.15%, Mg content 0.2‑0.5%, Pb content ≤ 0.15%, Sn content ≤ 0.05%, and the rest is Al. In the implementation process of the present invention, the content ratio of Si, Fe and Mn is controlled to be 10.5-11:0.6-0.9:0.20-0.55, so that the aluminum alloy structure mainly has the Al-Si-AlFeSi ternary eutectic composition, and has better High plasticity and excellent corrosion resistance and wear resistance, suitable for use in motor housings.

Description

technical field [0001] The invention belongs to the technical field of aluminum alloys, and in particular relates to a die-casting aluminum alloy applied to a motor casing and a preparation method thereof. Background technique [0002] Aluminum alloy is an alloy composed of aluminum and other elements. It is the most commonly used material in structural engineering. It has small specific gravity, good heat transfer, good electrical conductivity, environmental protection, and can be recycled. It is widely used in 3C, automobiles Transportation, home furnishing, aerospace, chemical industry, rocket and other fields. Die-cast aluminum alloy is an aluminum alloy obtained by pressure casting. This die-cast aluminum alloy can be used to produce workpieces with complex shapes, and its cost is low, so it is widely used. [0003] Die-casting aluminum alloys have high specific strength, good corrosion resistance, electrical and thermal conductivity, casting and processing properties,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/02C22B9/05C22C1/02
CPCC22C21/02C22C1/026C22B9/05
Inventor 刘建航
Owner 肇庆南都再生铝业有限公司
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