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A high-performance aluminum alloy for power transmission and transformation equipment and its preparation method

A technology for power transmission and transformation equipment and aluminum alloys, which is applied in the field of aluminum alloys, can solve problems such as insufficient elongation and restrictions on the application of aluminum alloys, and achieve high elongation, simple manufacturing process, and improved strength

Active Publication Date: 2020-06-23
精美铝业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The Chinese invention patent with the application number CN2013104765671 discloses a method for processing aluminum alloy medium and thick plates. Applications in power transmission and transformation equipment

Method used

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  • A high-performance aluminum alloy for power transmission and transformation equipment and its preparation method
  • A high-performance aluminum alloy for power transmission and transformation equipment and its preparation method
  • A high-performance aluminum alloy for power transmission and transformation equipment and its preparation method

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Embodiment 1

[0045] The invention discloses a method for preparing a high-performance aluminum alloy for power transmission and transformation equipment, comprising the following steps:

[0046] A. Casting ingot;

[0047] Heat Al, Mg, Si, Cu, Cr, Fe, Mn, Ti, and Zn to 700°C according to the mass fractions shown in Table 1, keep the material in a molten state for 3 hours, filter to remove insolubles in the aluminum melt, and cool After reaching room temperature, an aluminum alloy ingot is obtained. During the smelting, argon gas is passed through for refining, and electromagnetic stirring is applied.

[0048] B. Homogenize the ingot after casting;

[0049] 430°C for 8 hours;

[0050] C. Through the rolling process, the ingot is thermally processed into a pre-processed workpiece;

[0051] Roll the aluminum alloy ingot into a plate with a thickness of 6 mm;

[0052] D. Perform solution heat treatment on the workpiece;

[0053] The solution heat treatment process includes the first stage ...

Embodiment 2

[0062] The invention discloses a method for preparing a high-performance aluminum alloy for power transmission and transformation equipment, comprising the following steps:

[0063] A. Casting ingot;

[0064] Heat Al, Mg, Si, Cu, Cr, Fe, Mn, Ti, and Zn to 700°C according to the mass fractions shown in Table 1, keep the material in a molten state for 3 hours, filter to remove insolubles in the aluminum melt, and cool After reaching room temperature, an aluminum alloy ingot is obtained. During the smelting, argon gas is passed through for refining, and electromagnetic stirring is applied.

[0065] B. Homogenize the ingot after casting;

[0066] 430°C for 8 hours;

[0067] C. Through the rolling process, the ingot is thermally processed into a pre-processed workpiece;

[0068] Roll the aluminum alloy ingot into a plate with a thickness of 6 mm;

[0069] D. Perform solution heat treatment on the workpiece;

[0070] The solution heat treatment process includes the first stage ...

Embodiment 3

[0079] The invention discloses a method for preparing a high-performance aluminum alloy for power transmission and transformation equipment, comprising the following steps:

[0080] A. Casting ingot;

[0081] Heat Al, Mg, Si, Cu, Cr, Fe, Mn, Ti, and Zn to 700°C according to the mass fractions shown in Table 1, keep the material in a molten state for 3 hours, filter to remove insolubles in the aluminum melt, and cool After reaching room temperature, an aluminum alloy ingot is obtained. During the smelting, argon gas is passed through for refining, and electromagnetic stirring is applied.

[0082] B. Homogenize the ingot after casting;

[0083] 430°C for 8 hours;

[0084] C. Through the rolling process, the ingot is thermally processed into a pre-processed workpiece;

[0085] Roll the aluminum alloy ingot into a plate with a thickness of 6 mm;

[0086] D. Perform solution heat treatment on the workpiece;

[0087] The solution heat treatment process includes the first stage ...

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Abstract

The invention discloses a high-performance aluminum alloy for power transmission and transformation equipment. The high-performance aluminum alloy for the power transmission and transformation equipment comprises the following components of, by mass, 0.45%-0.90% of Mg, 0.50%-1.20% of Si, 0.20%-0.60% of Cu, 0.15%-0.35% of Cr, less than or equal to 0.5% of Fe, 0.15%-0.35% of Mn, 0.04%-0.15% of Ti, less than 0.20% of Zn, and the balance Al; the invention further discloses a preparation method of the aluminum alloy, the preparation method comprises the following steps that A, a cast ingot is cast;B, the cast ingot is homogenized; C, a rolling process is carried out, heat machining is conducted on the cast ingot to form a pre-machined workpiece; D, solid solution heat treatment is conducted onthe workpiece; E, quenching is conducted; and F, artificial aging is conducted to obtain a finished product. The alloy and the method further have the characteristics of being high in elongation while high in strength at the same time.

Description

technical field [0001] The invention relates to the field of aluminum alloys, in particular to a high-performance aluminum alloy for power transmission and transformation equipment and a preparation method thereof. Background technique [0002] In 1960, aluminum alloy became the power structural material for the first time. By 2004, my country had formed a complete standard for aluminum alloy structural materials, and aluminum alloy materials are becoming the mainstream of structural materials for power transmission and transformation equipment. [0003] In order to meet the ever-increasing high requirements of aluminum alloy materials for power transmission and transformation equipment, aluminum alloy medium and thick plates need to maintain their strength, toughness and corrosion resistance, while also having good oxidation effect and appearance. Al-Mg-Si series heat treatment can strengthen aluminum alloy. Due to low density, excellent mechanical properties and strength, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/02C22C21/08C22C21/14C22F1/043C22F1/047C22F1/05C22F1/057
Inventor 李征美李志威徐剑苏勇君
Owner 精美铝业有限公司
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