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A kind of high-strength and high-conductivity deformed aluminum alloy and preparation method thereof

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

Active Publication Date: 2022-08-02
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 process includes semi-continuous casting, homogenization heat treatment, extrusion, solution-aging Steps such as heat treatment, the process is complicated, the production cycle is long and the energy consumption is large

Method used

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  • A kind of high-strength and high-conductivity deformed aluminum alloy and preparation method thereof
  • A kind of high-strength and high-conductivity deformed aluminum alloy and preparation method thereof
  • A kind of high-strength and high-conductivity deformed aluminum alloy and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] The alloy composition of this embodiment is Al-0.6Mg-0.4Si-0.2Fe-0.3Ni-0.1Cu-0.06B, and industrial pure aluminum, Al-10Mg, Al-20Si, Al-20Fe, Al-10Ni and Al- 50Cu master alloy is prepared, and the composition is: Mg: 0.6%; Si: 0.4%; Fe: 0.2%; Ni: 0.3%; Cu: 0.1%; B: 0.06%, and the rest is Al.

[0058] Compared with the comparative example, the main differences in the preparation process in this example are: the alloying element Ni is added; sub-rapid solidification is adopted in the casting preparation process, and the homogenization treatment process is cancelled. The preparation process mainly includes: alloy smelting and melt treatment; alloy casting and sub-rapid solidification preparation, alloy rolling plastic forming, alloy solution-aging heat treatment. The detailed process flow and its parameters are as follows:

[0059] (1) Alloy smelting and melt treatment

[0060] The weighed industrial pure aluminum is melted, and the melting temperature is 730°C. After al...

Embodiment 2

[0079] The elemental composition of the alloy of this example is the same as that of Example 1, except that the element content is slightly different. The alloy composition of this embodiment is: Mg: 0.8%; Si: 0.6%; Fe: 0.1%; Ni: 0.2%; Cu: 0.1%; B: 0.09%, and the rest is Al. The raw materials used to formulate the alloy are the same as in Example 1.

[0080] The alloy preparation process of this embodiment is basically the same as that of embodiment 1, and also includes: alloy smelting and melt treatment; alloy casting and sub-rapid solidification preparation, alloy rolling plastic forming, alloy solution-aging heat treatment. The difference is that the preparation process parameters are different. details as follows:

[0081] (1) Alloy smelting and melt treatment

[0082] The weighed industrial pure aluminum is melted, and the melting temperature is 730°C. After all the industrial pure aluminum is melted, Al-10Mg, Al-20Si, Al-20Fe and Al-50Cu master alloys are added. Aft...

Embodiment 3

[0093] The elemental composition of the alloy of this example is the same as that of Example 1, except that the element content is slightly different. The alloy composition of this embodiment is: Mg: 0.3%; Si: 0.2%; Fe: 0.3%; Ni: 0.5%; Cu: 0.1%; B: 0.05%, and the rest is Al. The raw materials used to formulate the alloy are the same as in Example 1.

[0094] The alloy preparation process of this embodiment is basically the same as that of embodiment 1, and also includes: alloy smelting and melt treatment; alloy casting and sub-rapid solidification preparation, alloy rolling plastic forming, alloy solution-aging heat treatment. The difference is that the preparation process parameters are different. details as follows:

[0095] (1) Alloy smelting and melt treatment

[0096] The weighed industrial pure aluminum is melted, and the melting temperature is 700°C. After all the industrial pure aluminum is melted, Al-10Mg, Al-20Si, Al-20Fe and Al-50Cu master alloys are added. Aft...

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Abstract

The invention discloses a deformed aluminum alloy with high strength and high electrical conductivity. %; Cu: 0.05-0.3%; B: 0.05-0.2%; the balance is Al. The invention also discloses a method for preparing the above-mentioned deformed aluminum alloy with high strength and high conductivity. The specific steps are: melting pure aluminum, basic alloying treatment, melt modification treatment, sub-rapid solidification, rolling plastic forming, solid solution-aging heat treatment , the preparation process is simple, the cost is low, and the comprehensive performance is excellent. The invention adopts Ni element to improve the morphology and distribution of the iron-rich phase, and promotes Mg 2 The precipitation of Si phase exerts its strengthening effect. Using sub-rapid solidification, rolling treatment and solution aging treatment to eliminate defects and improve the structure, improve the mechanical properties and electrical conductivity of the alloy, solve the problem of mutual constraints between electrical conductivity and mechanical properties in the alloy, and obtain high strength and high conductivity. Deformed aluminum alloy.

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 conductivity and a preparation method thereof. Background technique [0002] With the rapid development of power transmission technology, the requirements for the mechanical and electrical properties of conductive materials in the field of power transmission are getting higher and higher. However, for the existing metal conductive materials, due to the influence of the strength of the metal itself and the microscopic mechanism of electrical conductivity, the strength of the metal and the electrical conductivity are mutually restricted, that is, the better the strengthening effect, the lower the electrical conductivity. [0003] The main strengthening mechanisms of metal materials include: solid solution strengthening, deformation strengthening, grain refinement strengthening and second phase strengthening. Ac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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