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Aluminum alloy composite material

A composite material and aluminum alloy technology, applied in the field of aluminum alloy composite materials, can solve the problem that the performance is difficult to meet the technical requirements of various aspects, and achieve the effects of high modulus, high wear resistance and expanding the scope of use

Inactive Publication Date: 2017-05-24
潘云清
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the performance of general aluminum alloy materials has been difficult to meet the technical requirements of various aspects

Method used

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  • Aluminum alloy composite material

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The aluminum alloy composite material in this embodiment is composed of a boron carbide skeleton with a volume ratio of 30% and an aluminum alloy matrix with a volume ratio of 70% through a vacuum pressureless infiltration method. Concrete preparation process is as follows:

[0018] The porous polyurethane foam is dipped and coated with boron carbide slurry to make a green body and then sintered. First, the temperature is raised to 220°C at 10°C / min, and then to 700°C at 3°C / min. The holding time is 40min, and sintered into a three-dimensional network The silicon nitride ceramic framework, the pore diameter of the three-dimensional network ceramic framework is 480 μm, and the porosity is 80%.

[0019] Melting 6061 aluminum alloy into liquid aluminum.

[0020] Then put the alumina crucible with boron carbide skeleton and 6061 aluminum alloy in the atmosphere furnace, pump it down to below 10Pa and fill it with argon gas, then rapidly raise the temperature to 1000°C unde...

Embodiment 2

[0022] The aluminum alloy composite material in this embodiment is composed of a boron carbide skeleton with a volume ratio of 32% and an aluminum alloy matrix with a volume ratio of 68% through a vacuum pressureless infiltration method. Concrete preparation process is as follows:

[0023] The porous polyurethane foam is dip-coated with boron carbide slurry to make a green body and then sintered. First, the temperature is raised to 230°C at 12°C / min, and then to 705°C at 3°C / min. The holding time is 38min, and sintered into a three-dimensional network The silicon nitride ceramic framework, the pore diameter of the three-dimensional network ceramic framework is 390 μm, and the porosity is 85%.

[0024] Melting 6061 aluminum alloy into liquid aluminum.

[0025] Then put the alumina crucible with boron carbide skeleton and 6061 aluminum alloy in the atmosphere furnace, pump it down to below 10Pa and fill it with argon gas in a vacuum, then rapidly raise the temperature to 1050°C...

Embodiment 3

[0027] The aluminum alloy composite material in this embodiment is composed of a boron carbide skeleton with a volume ratio of 35% and an aluminum alloy matrix with a volume ratio of 65% through a vacuum pressureless infiltration method. Concrete preparation process is as follows:

[0028] The porous polyurethane foam is dip-coated with boron carbide slurry to make a green body and then sintered. First, the temperature is raised to 235°C at 15°C / min, and then to 710°C at 4°C / min. The holding time is 35min, and sintered into a three-dimensional network The silicon nitride ceramic framework, the pore diameter of the three-dimensional network ceramic framework is 420 μm, and the porosity is 83%.

[0029] Melting 6061 aluminum alloy into liquid aluminum.

[0030] Then put the alumina crucible with boron carbide skeleton and 6061 aluminum alloy in the atmosphere furnace, pump it down to below 10Pa and fill it with argon gas, then rapidly raise the temperature to 1100°C under the p...

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Abstract

The invention relates to an aluminum alloy composite material. The aluminum alloy composite material is mainly prepared from, by weight, 30-40% of boron carbide framework and the balance aluminum alloy matrix, 5-10% of reinforced particles are also added by volume, and the aluminum alloy composite material is compounded by adopting a vacuum non-pressure infiltration method. The aluminum alloy composite material combines the advantages of a boron carbide material and aluminum alloy, has more excellent comprehensive properties such as strength, toughness and abrasion resistance and can be well applied to the fields of bullet resistant materials, radiation proof materials, high-temperature, abrasion resistant and self-lubricating materials, special acid-base etching resistant materials, cutting and grinding tools, shielding materials and the like.

Description

technical field [0001] The invention relates to an alloy material, in particular to an aluminum alloy composite material. Background technique [0002] Aluminum alloy is the most widely used non-ferrous metal structural material in industry, and has been widely used in aviation, aerospace, automobile, machinery manufacturing, shipbuilding and chemical industry. Moreover, with the rapid development of industrial economy, the demand for aluminum alloy materials is also increasing. However, the performance of general aluminum alloy materials has been difficult to meet the technical requirements of various aspects. Moreover, with the in-depth implementation of the concept of sustainable development, research on how to improve the performance of aluminum alloys while reducing the amount of use has become a hot topic in current industry technology research. Contents of the invention [0003] The object of the present invention is to solve the above-mentioned problems in the pr...

Claims

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Application Information

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IPC IPC(8): C04B35/563C04B38/06C22C21/00C04B35/78C04B41/88
CPCC04B35/563C04B35/78C04B38/067C04B41/5155C04B41/88C04B2235/386C04B2235/6562C22C21/00C04B38/0054C04B38/0074C04B38/0615
Inventor 潘云清
Owner 潘云清
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