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A method for strengthening aluminum alloy profile with nanocomposite material

A technology for nano-composite materials and aluminum alloy profiles, which is applied in the field of nano-composite materials reinforced aluminum alloy profiles, can solve the problems of coarsening of aluminum alloy grains, no specific solution is proposed, and comprehensive performance is not enough to satisfy consumers, etc. Improve grain boundary stability, reduce internal defects, and synergistically enhance the effect of comprehensive performance

Active Publication Date: 2021-01-12
佛山市三水凤铝铝业有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] For example, the patent No. CN105861910A discloses a high-strength titanium-aluminum alloy material and its preparation method, which is a method of utilizing hot-press sintering; A method for preparing TiAl alloy by sintering; another example is that the patent No. CN103290343B discloses a method for preparing an aluminum alloy composite material reinforced by filling particles, and uses filling ions to prepare an aluminum alloy with light weight and good thermal conductivity, but the above-mentioned aluminum alloy preparation method In the middle, it is easy to cause the grain coarsening inside the aluminum alloy, and its comprehensive performance is not enough to meet the needs of consumers
[0004] In summary, in the field of preparing aluminum alloys, there are still many practical problems that need to be dealt with in practical applications, and no specific solutions have been proposed.

Method used

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  • A method for strengthening aluminum alloy profile with nanocomposite material
  • A method for strengthening aluminum alloy profile with nanocomposite material
  • A method for strengthening aluminum alloy profile with nanocomposite material

Examples

Experimental program
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Effect test

Embodiment 1

[0036] A method for reinforcing an aluminum alloy profile with a nanocomposite material, comprising the steps of:

[0037] (1) Materials required for preparing aluminum alloy: according to the atomic percentage of the composition of aluminum alloy: Si10.5%, Fe0.55%, Cu0.3%, Mn0.5%, Mg0.49%, Ti0.15%, Zr0 .34%, and the balance is Al, and the instant silicon, aluminum-iron alloy, pure copper, aluminum-manganese alloy, aluminum-titanium-boron alloy, magnesium ingot and aluminum ingot are weighed successively to complete the preparation of materials for preparing aluminum alloy;

[0038] (2) Heat and melt the aluminum ingot at 730°C, and then add aluminum-iron alloy, pure copper, aluminum-manganese alloy, aluminum-titanium-boron alloy, magnesium ingot and instant silicon in sequence, at a vacuum degree of ≤5×10 -2 Carrying out vacuum suspension smelting under the condition of Pa, the smelting temperature of the vacuum suspension smelting is 1500° C., and the smelting time is 10 min...

Embodiment 2

[0048] A method for reinforcing an aluminum alloy profile with a nanocomposite material, comprising the steps of:

[0049] (1) Materials required for preparing aluminum alloy: according to the atomic percentage of the composition of aluminum alloy: Si13.0%, Fe0.55%, Cu0.68%, Mn0.5%, Mg0.49%, Ti0.15%, Zr0 .34%, and the balance is Al, and the instant silicon, aluminum-iron alloy, pure copper, aluminum-manganese alloy, aluminum-titanium-boron alloy, magnesium ingot and aluminum ingot are weighed successively to complete the preparation of materials for preparing aluminum alloy;

[0050] (2) Heat and melt the aluminum ingot at 750°C, and then sequentially add aluminum-iron alloy, pure copper, aluminum-manganese alloy, aluminum-titanium-boron alloy, magnesium ingot and instant silicon, at a vacuum degree of ≤5×10 -2 Carrying out vacuum suspension smelting under the condition of Pa, the smelting temperature of the vacuum suspension smelting is 1700° C., and the smelting time is 10 m...

Embodiment 3

[0060] A method for reinforcing an aluminum alloy profile with a nanocomposite material, comprising the steps of:

[0061] (1) Materials required for preparing aluminum alloy: according to the atomic percentage of the composition of aluminum alloy: Si12.5%, Fe0.30%, Cu0.45%, Mn0.30%, Mg0.45%, Ti0.10%, Zr0 .15%, and the balance is Al, and the instant silicon, aluminum-iron alloy, pure copper, aluminum-manganese alloy, aluminum-titanium-boron alloy, magnesium ingot and aluminum ingot are weighed successively to complete the preparation of materials for preparing aluminum alloy;

[0062] (2) Heat and melt the aluminum ingot at 740°C, and then add aluminum-iron alloy, pure copper, aluminum-manganese alloy, aluminum-titanium-boron alloy, magnesium ingot and instant silicon in sequence, at a vacuum degree of ≤5×10 -2 Carrying out vacuum suspension smelting under the condition of Pa, the smelting temperature of the vacuum suspension smelting is 1600° C., and the smelting time is 20 m...

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Abstract

The invention provides a method for reinforcing an aluminum alloy profile through a nano composite material. Al2O3 and carbon nanotubes in a specific proportion are dispersed under the assistance of microwave ball milling; after the nano composite material is formed, 1 / 2 of the nano composite material is mixed with aluminum alloy liquid, the dispersity among components and the uniformity of particle mixing are improved advantageously, and the specific surface area of mixing and the surface interaction force of mixing can be effectively increased. Finally, the remaining 1 / 2 of the nano composite material is added in a filling mode after aluminum alloy is sintered, the combination degree of the nano composite material and the aluminum alloy is reinforced through repeated heating and friction, refining and uniform distribution of crystal grains are further promoted, the crystal boundary stability is improved synergistically, the high strength and plasticity of the aluminum alloy are ensured, and the wear resistance of the aluminum alloy can further be improved significantly. The method for reinforcing the aluminum alloy profile through the nano composite material solves the internal defects of the nano composite material in the aluminum alloy on the whole, and solves the problem of coarse crystal grains of the aluminum alloy.

Description

technical field [0001] The invention relates to the field of preparation of aluminum alloys, in particular to a method for reinforcing aluminum alloy profiles with nanocomposite materials. Background technique [0002] Due to its high specific strength, good high temperature oxidation resistance and high temperature creep resistance, aluminum alloy is widely used in many fields. The strength and wear resistance of aluminum alloy can be enhanced by nanocomposite materials, but the new aluminum alloy The composite of reinforced composite material and aluminum alloy matrix is ​​difficult. During the preparation process, when the preparation temperature is too low, the material cannot be densified, and when the temperature is too high, segregation is prone to occur, which affects the original quality of the aluminum alloy matrix. The solid solution benefits, and when the composite material is melted into an aluminum alloy, it is easy to have internal defects, which affects the r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/02C22C32/00C22C1/10B23P15/00
CPCB23P15/00C22C1/1036C22C21/02C22C26/00C22C32/0036C22C2026/002
Inventor 蔡知之万里周思根胡权葛文浩
Owner 佛山市三水凤铝铝业有限公司
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