High-strength and high-conductivity wrought aluminum alloy and preparation method thereof

A technology of deforming aluminum alloy and high conductivity, applied in metal rolling, metal rolling, temperature control and other directions, can solve the problems of high energy consumption, complex process, long production cycle, etc., achieve simple operation process and reduce production cost , the effect of low production cost

Active Publication Date: 2021-10-22
广东华昌集团有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] As the most widely used light metal structural material, aluminum alloy has broad development prospects in the field of power transmission; the traditional Al-Mg-Si series deformed aluminum alloy production proc

Method used

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  • High-strength and high-conductivity wrought aluminum alloy and preparation method thereof
  • High-strength and high-conductivity wrought aluminum alloy and preparation method thereof
  • High-strength and high-conductivity wrought aluminum alloy and preparation method thereof

Examples

Experimental program
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Example Embodiment

[0056] Example 1

[0057] The alloy component of the present embodiment is Al-0.6 mg-0.4 Si-0.2FE-0.3Ni-0.1Cu-0.06b, which is employed with industrial pure aluminum, Al-10 mg, Al-20Si, Al-20FE, Al-10ni and Al- The 50CU intermediate alloy was prepared, and the ingredient was: 0.6%; Si: 0.4%; Fe: 0.2%; Ni: 0.3%; Cu: Cu: 0.1%; B: 0.06%, the rest is Al.

[0058] In this embodiment, the preparation process in this embodiment is mainly different that the alloy element Ni is added; subtle solidification is taken during the casting preparation, and the homogenization process is canceled. The preparation process mainly includes: alloy smelting and melt treatment; alloy castings and sub - fast solidification preparation, alloy rolling plastic molding, alloy solid - time heating. Detailed process flow and its parameters are as follows:

[0059] (1) Alloy smelting and melt treatment

[0060] The intensive industrial pure aluminum is melted, and the melting temperature is 730 ° C. After all of...

Example Embodiment

[0078] Example 2

[0079] The element composition of the present embodiment is the same as in Example 1, and the element content is slightly different. The alloy component of the present embodiment is: 0.8% by mass: 0.6%; Fe: 0.1%; Ni: 0.2%; Cu: 0.1%; B: 0.09%, the rest is Al. The raw materials used in formulation alloys were the same as in Example 1.

[0080] The alloy preparation process flow is basically the same as that of Example 1, including: alloy smelting and melt treatment; alloy castings and sub - fast solidification preparation, alloy rolling plastic molding, alloy solid-soluble - aging heat treatment. Different is that the preparation process parameters are different. details as follows:

[0081] (1) Alloy smelting and melt treatment

[0082] The intensive industrial pure aluminum is melted, and the melting temperature is 730 ° C. After all of the pure aluminum to be industrially melted, Al-10 mg, Al-20Si, Al-20FE and Al-50Cu intermediate alloy were added. After all of...

Example Embodiment

[0092] Example 3

[0093] The element composition of the present embodiment is the same as in Example 1, and the element content is slightly different. The alloy component of the present embodiment is: 0.3% by mass: 0.3%; Si: 0.2%; Fe: 0.3%; Ni: 0.5%; Cu: 0.1%; B: 0.05%, the rest is Al. The raw materials used in formulation alloys were the same as in Example 1.

[0094] The alloy preparation process flow is basically the same as that of Example 1, including: alloy smelting and melt treatment; alloy castings and sub - fast solidification preparation, alloy rolling plastic molding, alloy solid-soluble - aging heat treatment. Different is that the preparation process parameters are different. details as follows:

[0095] (1) Alloy smelting and melt treatment

[0096] The intensive industrial pure aluminum is melted, and the melting temperature is 700 ° C. After all of the pure aluminum to be industrially melted, Al-10 mg, Al-20Si, Al-20FE and Al-50Cu intermediate alloy were added. Af...

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Abstract

The invention discloses a high-strength and high-conductivity wrought aluminum alloy. The wrought aluminum alloy comprises the following alloy elements: 0.3 to 0.8% of Mg; 0.2 to 0.6% of Si; 0.1 to 0.3% of Fe; 0.2 to 0.5% of Ni; 0.05 to 0.3% of Cu; 0.05 to 0.2% of B; and the balance of Al. The invention further discloses a preparation method of the high-strength and high-conductivity wrought aluminum alloy. The preparation method comprises the specific steps of pure aluminum melting, basic alloying treatment, melt modification treatment, sub-rapid solidification, rolling plastic forming and solid solution-ageing heat treatment, the preparation process is simple, the cost is low, and the comprehensive performance is excellent. According to the method, the Ni element is adopted to improve the morphology and distribution of an iron-rich phase, precipitation of an Mg2Si phase is promoted, and the strengthening effect of the Mg2Si phase is achieved. According to the high-strength and high-conductivity wrought aluminum alloy, the defects are eliminated and the structure is improved by adopting sub-rapid solidification, rolling treatment and solid solution-ageing treatment, the mechanical property and the conductivity of the alloy are improved, the problem that the conductivity and the mechanical property in the alloy are mutually impeded is solved, and the high-strength and high-conductivity wrought aluminum alloy is obtained.

Description

technical field [0001] The invention relates to the technical field of deformed aluminum alloys, in particular to a deformed aluminum alloy with high strength and high electrical conductivity and a preparation method thereof. Background technique [0002] With the rapid development of power transmission technology, the requirements for the mechanical and conductive properties of conductive materials in the field of power transmission are also getting higher and higher. However, for the existing metal conductive materials, due to the influence of the metal's own strength and the microscopic mechanism of conductivity, the metal strength and conductivity are mutually restricted, that is, the better the strengthening effect, the lower the conductivity. [0003] The main strengthening mechanisms of metal materials include: solid solution strengthening, deformation strengthening, fine grain strengthening and second phase strengthening. According to the microscopic mechanism of me...

Claims

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Application Information

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IPC IPC(8): C22C21/04C22C21/08C22C1/03C22C21/00C22F1/043C22F1/047C22F1/04B21B3/00B21B37/00B21B37/74
CPCC22C21/04C22C21/08C22C21/00C22C1/026C22C1/03C22F1/043C22F1/047C22F1/04B21B3/00B21B37/00B21B37/74B21B2003/001
Inventor 杜军黄嘉俊郭加林周明君曾阳阳
Owner 广东华昌集团有限公司
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