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Preparation method of high temperature-resistant aluminium alloy material

An aluminum alloy material and high-temperature-resistant technology, which is applied in the field of alloy materials, can solve the problems of anti-rust performance, corrosion resistance, high and low temperature resistance, performance and cost, etc., and achieve the effects of low processing cost, easy control of parameters, and easy availability of raw materials

Inactive Publication Date: 2015-12-16
SUZHOU NETABHAPE COMPOSITE MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, although aluminum alloy technology has been greatly developed, there are still many problems, such as wear resistance, hardness, rust resistance, corrosion resistance, high and low temperature resistance, brittleness, toughness, and cost. Many occasions still cannot meet the requirements of production, and further improvement is needed to improve production efficiency, reduce costs, improve safety, provide guarantee for the development of high-tech, and provide impetus for social development. The task is still very arduous

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] A method for preparing a high-temperature-resistant aluminum alloy material, the method comprising the following preparation steps:

[0014] A. Mixing: Put the powder in the mixing device, use the high-pressure gas with a pressure of 0.8MPa to blow up the above-mentioned powder, stop feeding the high-pressure gas after 3-5 minutes, all the powders are deposited together and mixed evenly; B, Press : Put the uniformly mixed powder into the mold, press and form it under the pressure of 800-840MPa to obtain the green compact, the pressure is 4-6T / cm 2 ; C. Sintering: put the compact into a mesh belt sintering furnace for sintering, and sinter in a protective atmosphere. During the sintering process, the pressure is 6.7 MPa. The compact first passes through a preheating zone at 980°C for 20 minutes. , then enter the sintering zone at 1300-1310°C, keep it warm for 2 hours, and finally cool the pressure-sintered product from the sintering temperature to room temperature at 40°...

Embodiment 2

[0018] A method for preparing a high-temperature-resistant aluminum alloy material, the method comprising the following preparation steps:

[0019] A. Mixing: Put the powder in the mixing device, use the high-pressure gas with a pressure of 0.8MPa to blow up the above-mentioned powder, stop feeding the high-pressure gas after 3-5 minutes, all the powders are deposited together and mixed evenly; B, Press : Put the uniformly mixed powder into the mold, press and form it under the pressure of 800-840MPa to obtain the green compact, the pressure is 4-6T / cm 2 ; C. Sintering: put the compact into a mesh belt sintering furnace for sintering, and sinter in a protective atmosphere. During the sintering process, the pressure is 6.7 MPa. The compact first passes through a preheating zone at 980°C for 20 minutes. , then enter the sintering zone at 1300-1310°C, keep it warm for 2 hours, and finally cool the pressure-sintered product from the sintering temperature to room temperature at 40°...

Embodiment 3

[0023] A method for preparing a high-temperature-resistant aluminum alloy material, the method comprising the following preparation steps:

[0024] A. Mixing: Put the powder in the mixing device, use the high-pressure gas with a pressure of 0.8MPa to blow up the above-mentioned powder, stop feeding the high-pressure gas after 3-5 minutes, all the powders are deposited together and mixed evenly; B, Press : Put the uniformly mixed powder into the mold, press and form it under the pressure of 800-840MPa to obtain the green compact, the pressure is 4-6T / cm 2 ; C. Sintering: put the compact into a mesh belt sintering furnace for sintering, and sinter in a protective atmosphere. During the sintering process, the pressure is 6.7 MPa. The compact first passes through a preheating zone at 980°C for 20 minutes. , then enter the sintering zone at 1300-1310°C, keep it warm for 2 hours, and finally cool the pressure-sintered product from the sintering temperature to room temperature at 40°...

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Abstract

The invention discloses a preparation method of a high temperature-resistant aluminium alloy material. The material is prepared from the following powder materials in parts by weight: 60-64 parts of aluminum powder, 6-10 parts of tin powder, 4-8 parts of copper sulphide, 3-6 parts of molybdenum dioxide powder, 4-7 parts of fused alumina zirconia powder, 4-8 parts of bismuth powder, 10-14 parts of quartz sand powder, 5-10 parts of electric smelted ceramsite sand, 10-14 parts of carbon powder, 1-4 parts of zirconium dioxide, 2-5 parts of cobalt powder, 2-5 parts of barium oxide and 2-5 parts of potassium feldspar powder. The preparation method comprises the steps of mixing, compacting, sintering, shaping and oil-impregnated treatment. By adjusting and optimizing the components of the material, the aluminium alloy material provided by the invention has the advantages of high strength and rigidity and high-temperature thermal stability; the raw materials are easily available; the processing cost is low; the preparation process is simple; parameters are easy to control; the production process is safe and environment-friendly; and the preparation method is suitable for large-scale industrial production.

Description

technical field [0001] The invention relates to an alloy material, in particular to a preparation method of a high-temperature-resistant aluminum alloy material. Background technique [0002] Aluminum alloy has a series of advantages such as small specific volume, high strength, good casting formability, excellent processability, small expansion coefficient and good fluidity, and is widely used in automobile, aviation, aerospace and home appliance industries. At present, most of the car engine cylinder blocks and cylinder heads at home and abroad have basically been produced with high-strength aluminum alloys. The all-aluminum alloy material reduces the weight of the body and at the same time enhances the heat dissipation effect of the engine, improves the working efficiency of the engine, and shortens the service life. longer. From the perspective of fuel saving, the advantages of cast aluminum engines in terms of fuel saving have attracted much attention. Because every t...

Claims

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Application Information

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IPC IPC(8): C22C1/04C22C21/00
Inventor 刘莉王爽邱晶刘晓东黄明明
Owner SUZHOU NETABHAPE COMPOSITE MATERIALS
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