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Preparation method for aluminum matrix composite material

A technology of aluminum-based composite materials and raw materials, which is applied in the field of aluminum-based composite materials, can solve the problems of poor wettability of diamond particles, and achieve the effects of low operating cost, simple and convenient process, and low energy consumption

Inactive Publication Date: 2016-07-06
周凡
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the above problems, the present invention provides a method for preparing aluminum-based composite materials. The present invention promotes the penetration of SiC and diamond particles in the prior art synthetic products, and improves the wettability of Al melt to SiC and diamond particles. technical problem

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] (1) First prepare materials according to mass percentage: diamond powder particles accounting for 1% of the total mass of the two, potassium fluotitanate accounting for 99% of the total mass of the two, (or potassium fluozirconate, or potassium fluoborate, Or potassium fluorosilicate, or potassium fluorotantalate) Mix the above two powders evenly.

[0012] (2) Melt pure aluminum or aluminum alloy in the furnace, heat up to 660°C, add two mixed powder raw materials accounting for 100% of the weight of the aluminum melt into the furnace, fully stir the melt and keep it warm for 5 minutes, and remove the slag from the melt, The melt after fully stirring the melt is cast into various products.

Embodiment 2

[0014] (1) First prepare materials according to mass percentage: diamond and silicon carbide mixed powder particles accounting for 50% of the total mass of the two, potassium fluotitanate accounting for 50% of the total mass, (or potassium fluozirconate, or fluoboric acid Potassium, or potassium fluorosilicate, or potassium fluorotantalate) and mix the above two powders evenly.

[0015] (2) Melt pure aluminum or aluminum alloy in the furnace, heat up to 900°C, add two mixed powder materials accounting for 50% of the weight of the aluminum melt into the furnace, fully stir the melt and keep it warm for 40 minutes, and remove the slag from the melt, The melt after fully stirring the melt is cast into various products.

Embodiment 3

[0017] (1) First prepare materials according to mass percentage: diamond and silicon carbide mixed powder particles accounting for 99% of the total mass of the two, potassium fluotitanate accounting for 1% of the total mass of the two, (or potassium fluozirconate, or Potassium fluoroborate, or potassium fluorosilicate, or potassium fluorotantalate) Mix the above two powders evenly.

[0018] (2) Melt pure aluminum or aluminum alloy in the furnace, and after heating up to 1000°C, add two mixed powder materials accounting for 1% of the weight of the aluminum melt into the furnace, fully stir the melt and keep it warm for 60 minutes, and then remove the slag from the melt, The melt after fully stirring the melt is cast into various products.

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PUM

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Abstract

The invention discloses a preparation method for an aluminum matrix composite material, and relates to the field of the aluminum matrix composite material. The operation method includes the steps that two or several kinds of diamond or diamond and silicon carbide mixed powder particles and potassium fluotitanate or potassium fluozirconate or potassium fluoborate or potassium fluosilicate orpotassium fluotantalate are evenly mixed; aluminum in a furnace is melted, the temperature rises to 660 DEG C to 1500 DEG C, and mixed powdery raw materials are added into the furnace to be sufficiently stirred; and after melting liquid is subject to heat preservation, drossing is carried out on the melting liquid, and the sufficiently-mixed melting liquid is cast into various products. According to the preparation method, the performance of the aluminum matrix composite material is effectively improved, the process is simple and convenient, the operation cost is low, and industrial production can be achieved.

Description

technical field [0001] The invention belongs to the field of aluminum-based composite materials, in particular to a preparation method of aluminum-based composite materials. Background technique [0002] Obtaining sufficient heterogeneous particle reinforced aluminum matrix composites has potential application prospects due to a series of excellent properties such as low density, excellent casting performance, wear resistance, high specific strength, good thermal conductivity, electrical conductivity, small thermal expansion coefficient, etc. Compared with fiber-reinforced metal matrix composites, particle-reinforced metal matrix composites have the advantages of low cost, small anisotropy, and easy synthesis. When preparing composite materials containing SiC and diamond particles, due to the poor wettability between SiC, diamond particles and aluminum alloy, the preparation process requires high requirements. At present, there are mainly powder metallurgy methods, spray dep...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/10C22C21/00C22C26/00C22C32/00
CPCC22C1/1036C22C21/00C22C26/00C22C2026/008C22C2026/006C22C1/1047
Inventor 周凡
Owner 周凡
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