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Carbon nanotube reinforced cast ZL105 alloy material and preparation method thereof

A technology of carbon nanotubes and alloy materials, applied in the field of reinforced aluminum alloys, can solve the problems of poor interface bonding between carbon nanotubes and metal substrates, poor interface wettability and dispersibility, and uneven dispersion of carbon nanotubes, and achieve interface bonding. Good, improve uniform dispersion, excellent mechanical properties

Pending Publication Date: 2022-04-12
贵阳华恒机械制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these forming methods have certain limitations, and cannot be adapted to parts with complex shapes or inner cavities.
The stirring melting casting method has the advantages of mature method and convenient operation, and can prepare various parts with complex cavities that meet the requirements of industrial production. However, carbon nanotubes and aluminum-based alloys have poor interface wettability and dispersion. Non-uniform dispersion of carbon nanotubes and poor interfacial bonding between carbon nanotubes and metal substrates are likely to occur by melting casting method

Method used

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  • Carbon nanotube reinforced cast ZL105 alloy material and preparation method thereof
  • Carbon nanotube reinforced cast ZL105 alloy material and preparation method thereof
  • Carbon nanotube reinforced cast ZL105 alloy material and preparation method thereof

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Embodiment 1

[0033] figure 1 Schematically shows the process flow of the preparation method of the carbon nanotube reinforced casting ZL105 alloy material according to an embodiment of the present invention.

[0034] refer to figure 1 , the preparation method of carbon nanotube reinforced cast ZL105 alloy material, comprises the following steps:

[0035] S1. Preparation of ZL105 alloy melt: mix the solid raw materials aluminum, copper, magnesium and silicon and heat to 820-840°C. After all the components are melted, inject nitrogen to isolate the air, stir and refine for 20-25 minutes to obtain ZL105 alloy melt;

[0036] Wherein, the ratio of solid raw materials in terms of weight percent is: copper 1.0-1.5wt%, silicon 5.0-5.5wt%, magnesium 0.5-0.6wt%, and the rest is aluminum.

[0037] S2. Preparation of carbon nanotube ZL105 alloy melt: cool the ZL105 alloy melt to 570-590°C, add carbon nanotubes to the ZL105 alloy melt, inject nitrogen to isolate the air, and continue stirring and re...

Embodiment 2

[0045] The preparation method of carbon nanotube reinforced casting ZL105 alloy material comprises the following steps:

[0046] S1. Preparation of ZL105 alloy melt: Put the solid raw materials aluminum, copper, magnesium and silicon into the graphite crucible to close the furnace cover, adjust the temperature to 830°C for heating and melting, and after all the components are melted, inject nitrogen to insulate Air, stirred and refined for 20 minutes to obtain ZL105 alloy melt;

[0047] The ratio of the raw materials in terms of weight percent is: copper 1.3wt%, silicon 5.2wt%, magnesium 0.6wt%, and the rest is aluminum.

[0048] S2. Cool the ZL105 alloy melt to 580° C., add carbon nanotubes to the ZL105 alloy melt, feed nitrogen to isolate the air, and continue stirring and refining for 5 minutes to obtain a carbon nanotube ZL105 alloy melt.

[0049] S3. After raising the temperature of the carbon nanotube ZL105 alloy melt to 760° C. to make the molten alloy completely liqui...

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Abstract

The invention discloses a carbon nanotube reinforced cast ZL105 alloy material and a preparation method thereof. The preparation method comprises the following steps: mixing ZL105 raw materials, and heating to 820-840 DEG C until the ZL105 raw materials are melted to obtain a ZL105 alloy melt; then cooling to 570-590 DEG C, and adding a carbon nano tube to obtain a carbon nano tube ZL105 alloy melt; the preparation method comprises the following steps: heating a carbon nanotube ZL105 alloy melt to 760 DEG C until the molten alloy is completely in a liquid state, deslagging, standing, pouring and cooling to obtain a carbon nanotube ZL105 alloy material; and carrying out heat treatment on the carbon nanotube ZL105 alloy material to obtain a finished product. According to the preparation method, the specific raw material proportion is adopted, the machining technology is adjusted, the uniform dispersity and interface bonding performance of the carbon nano tubes in a metal matrix in the later period are further improved, the whole preparation method is simple, the process is short, and the obtained carbon nano tube reinforced cast ZL105 alloy material is good in interface bonding and more excellent in mechanical property.

Description

technical field [0001] The invention relates to the technical field of reinforced aluminum alloys, in particular to a carbon nanotube reinforced casting ZL105 alloy material and a preparation method. Background technique [0002] Aluminum alloy materials are widely used in various formed parts such as casting and forging due to their low density and good specific strength. Carbon nanotubes have been widely used as reinforcements of aluminum matrix composites, and CNTs-Al composites with better performance than aluminum matrix materials can be prepared by in situ synthesis, friction stir and other methods. For example, the preparation of carbon nanotube-reinforced 2024Al-based composite materials by powder metallurgy can increase the yield strength of the composite materials, and the CNTs-Al composite materials prepared by sandwich technology can increase the tensile strength of the material, and the elastic modulus has also been greatly improved. . However, these forming m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/10C22C21/02C22F1/043C22C1/02
Inventor 李荣曾琦潘志霖
Owner 贵阳华恒机械制造有限公司