Preparation method of aluminum-based composite material

A technology of aluminum-based composite materials and aluminum ingots, which is applied in the field of preparation of aluminum-based composite materials, can solve problems such as uneven internal properties and agglomeration of composite materials, and achieve the effects of enhancing uniform distribution, enhancing uniformity, and reducing falling speed

Inactive Publication Date: 2018-03-09
南通海江铝业有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The ceramic particles are added into the molten aluminum, and then poured into a composite material. This preparation method has a simple process and the amount of ceramic particles is easy to control, but

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] 1. Take 60g of 100-micron copper powder, 60g of 100-micron iron powder, 90g of 100-micron silicon carbide ceramic particles, and 90g of sodium bicarbonate, and put them into a planetary ball mill with a ball-to-material ratio of 50:1 and a speed of 500 rpm , The grinding time is 2 hours, and the granular 1# reinforcing agent is obtained.

[0019] 2. Take 540g of an aluminum ingot with a purity of ≥99.7wt% and melt it into molten aluminum at 750°C, then put the 1# reinforcing agent into the molten aluminum, stir at a speed of 450 rpm for 15 minutes, and cast to obtain 1# aluminum base composite material.

Embodiment 2

[0023] 1. Take 27g of 120-micron copper powder, 27g of 100-micron iron powder, 90g of 150-micron silicon carbide ceramic particles, and 36g of sodium bicarbonate, and put them into a planetary ball mill with a ball-to-material ratio of 50:1 and a speed of 400 rpm , The grinding time is 3 hours, and the granular 2# reinforcing agent is obtained.

[0024] 2. Take 900g of an aluminum ingot with a purity of ≥99.7wt% and melt it into molten aluminum at 820°C, then put 2# reinforcing agent into the molten aluminum, stir at a speed of 600 rpm for 15 minutes, and cast to obtain 2# aluminum base composite material.

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PUM

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Abstract

The invention discloses a preparation method of an aluminum-based composite material. The preparation method of the aluminum-based composite material includes the following steps that A, a reinforcingagent is prepared, wherein ceramic particles, copper powder, iron powder and sodium bicarbonate are thrown into a ball mill to be ground, a granular assisting agent with the particle size being 3-5 mm is made, and a material of the ceramic particles is silicon carbide; B, casting is performed, after an aluminum ingot is molten, the reinforcing agent prepared in the A step is added, stirring and mixing are performed, and then pouring is performed so that the aluminum-based composite material can be obtained; and in the reinforcing agent, by weight, the copper powder accounts for 15-20%, the iron powder accounts for 15-20%, the sodium bicarbonate accounts for 20-30%, and the ceramic particles account for 30-50%. In the aluminum-based composite material produced through the preparation method, the ceramic particles are uniformly distributed, and the uniformity of the internal property of the aluminum-based composite material is good.

Description

technical field [0001] The invention specifically relates to a preparation method of an aluminum-based composite material. Background technique [0002] Particle-reinforced aluminum matrix composites are composite materials with aluminum as the matrix and ceramic particles as the reinforcing phase. The ceramic particles are added into the molten aluminum, and then poured into a composite material. This preparation method has a simple process and the amount of ceramic particles is easy to control, but the ceramic particles are prone to agglomeration during the preparation process, and the agglomerated ceramic particles settle on the Bottom, resulting in inconsistencies in the internal properties of the composite. Contents of the invention [0003] The object of the present invention is to address the deficiencies of the prior art, and provide a method for preparing an aluminum matrix composite material. In the aluminum matrix composite material produced by the preparation ...

Claims

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Application Information

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IPC IPC(8): C22C21/00C22C32/00C22C1/10
CPCC22C1/1005C22C1/1036C22C21/00C22C32/0047C22C1/1052
Inventor 朱岩江
Owner 南通海江铝业有限公司
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