Composite material preparation device and preparation method

Abstract

In the operation and use process of the composite material preparation device, raw material powder is fully coated with aluminum foil paper, a furnace inner support and raw materials placed on the furnace inner support are put into an aluminum alloy melt in a crucible together in advance, the raw material oxidation phenomenon in the feeding process before the preparation process is implemented is effectively avoided, meanwhile, the raw materials are not prone to being oxidized, and meanwhile the production efficiency is improved. Argon fed into the crucible is guided to the bottom of the crucible through the gas inlet channel, the argon is blown to raw materials located on the support in the furnace from bottom to top along the spherical surface structure of the inner wall of the bottom of the crucible, upward entrainment is formed, and therefore the raw materials can be promoted to fully react, reactant oxidation and generation of other impurities can be effectively avoided, and the service life of the furnace is prolonged. The process effect of composite material preparation is further optimized, and the product quality and the material performance of the prepared composite material are improved. The invention further discloses a composite material preparation method applying the composite material preparation device.

Description

technical field [0001] The invention relates to the technical field of in-situ self-generated ceramic particle reinforced aluminum matrix composite material preparation, in particular to a composite material preparation device. The invention also relates to a composite material preparation method using the composite material preparation device. Background technique [0002] The raw materials of particle-reinforced aluminum matrix composites are widely used, and the common reinforcing phases are SiC (silicon carbide), B 4 C (boron carbide), Al 2 O 3 (alumina), TiB 2 (Titanium Diboride), TiC (Titanium Carbide), TiB (Titanium Boride) WC (Tungsten Carbide), etc., particle-reinforced aluminum matrix composites have the advantages of low preparation cost, simple preparation process and material isotropy. It has been developed rapidly, and it can adjust the performance of composite materials according to actual needs by controlling the volume fraction of reinforced particles, p...

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Problems solved by technology

[0012] For the above reaction scheme, the traditional method currently used is to add raw materials from top to bottom. During the feeding process, a large amount of gas will be involved, which will increase the gas content of the composite material melt. Gas is easy to adsorb particles and aggregate, resulting in uneven particle distribution. At the same time, when exposed to the atmosphere for a long time, the surface of the raw material and the melt is oxidized severely, which increases the content of oxide film in the composite material and reduces the product quality and performance of the composite material

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