Aluminum matrix composite, and preparation method of aluminum matrix composite based on 3D (three dimensional) printing

An aluminum-based composite material and 3D printing technology, which is applied in the direction of manufacturing tools, additive processing, ceramic products, etc., can solve the problems of limited product size, long process flow, complicated process, etc., and achieve simple process, short process program, Solve the effect of long process

Active Publication Date: 2018-06-08
GUANGDONG INST OF NEW MATERIALS
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a method for preparing aluminum-based composite materials based on 3D printing, which ca

Method used

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  • Aluminum matrix composite, and preparation method of aluminum matrix composite based on 3D (three dimensional) printing
  • Aluminum matrix composite, and preparation method of aluminum matrix composite based on 3D (three dimensional) printing
  • Aluminum matrix composite, and preparation method of aluminum matrix composite based on 3D (three dimensional) printing

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preparation example Construction

[0027] figure 1 Schematic flow chart of the preparation process of the aluminum matrix composite material provided for the embodiment of the invention. see figure 1 , an embodiment of the present invention provides a method for preparing a 3D-printed aluminum-based composite material, including:

[0028] The step of preparing ceramic porous body blank by 3D printing: put the pre-prepared ceramic paste for 3D printing into the silo of the 3D printer, and prepare the ceramic porous body blank for aluminum matrix composite material by nozzle extrusion forming technology;

[0029] The solidification and sintering steps of the ceramic porous body blank: the formed aluminum matrix composite material is solidified with the ceramic porous body blank, and then the integrated degreasing and sintering treatment is carried out in the air furnace to obtain the ceramic porous body for the aluminum matrix composite material. body;

[0030] Steps for preparing aluminum matrix composites by...

Embodiment 1

[0058] This embodiment provides an aluminum matrix composite material, which is mainly prepared by the following preparation method of aluminum matrix composite material based on 3D printing:

[0059] S1 3D printing preparation of ceramic porous body blank: accurately weigh 140g of silicon carbide powder with a particle size of 10μm, 25g of water glass, 5g of epoxy resin, 2g of ethylene glycol, 2g of n-butanol, 2g of polydimethylsiloxane, Put 20g of ionized water and 4g of glycerin into a ball mill jar, then ball mill on a planetary ball mill at a speed of 300 rpm for 3 hours, and mix evenly to obtain a silicon carbide ceramic paste for 3D printing; then the prepared The paste is loaded into the silo of the 3D desktop printer, and the silicon carbide ceramic porous body blank of the design specification is formed by 3D printing technology;

[0060] Steps of solidification and sintering of S2 ceramic porous body blank: place the formed silicon oxide ceramic porous body blank in...

Embodiment 2

[0063] This embodiment provides an aluminum matrix composite material, which is mainly prepared by the following preparation method of aluminum matrix composite material based on 3D printing:

[0064] S1 3D printing preparation of ceramic porous body blanks: accurately weigh 140g of alumina powder with a particle size of 50μm, 26g of water glass, 2g of ethylene glycol, 2g of n-butanol, 20g of deionized water and 10g of ethanol, put them into a ball mill jar, and then Mill on a planetary ball mill at a speed of 350 revolutions per minute for 2 hours, and mix evenly to obtain an alumina ceramic paste for 3D printing; then put the prepared paste into the hopper of a 3D desktop printer, and use 3D printing technology to form Alumina ceramic porous body blank with design specifications;

[0065] S2 Solidification and sintering steps of the ceramic porous body blank: place the formed zirconia ceramic porous body blank in a carbon dioxide atmosphere for 2 minutes, dry and solidify; f...

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Abstract

The invention provides an aluminum matrix composite, and a preparation method of the aluminum matrix composite based on 3D (three dimensional) printing. The aluminum matrix composite is prepared by preparing a ceramic porous body blank via the 3D printing, performing solidification and sintering on the ceramic porous body blank, and performing pressure infiltration. The method comprises the stepsof forming the ceramic porous body blank for the aluminum matrix composite via a 3D printing technology, putting the ceramic porous body blank in a carbon dioxide atmosphere or an air atmosphere for solidification, performing integrated degreasing-sintering treatment in an air furnace to form a ceramic porous body for the aluminum matrix composite, and adopting a pressure infiltration method to prepare the aluminum matrix composite. The method can solve the problems of long technical flow, complicated procedure, high cost, limited product size and the like of the existing powder metallurgic method. At the same time, the method avoids the problems of high possibility of mixing of gas and impurities, and high possibility of segregation and 'caking' due to addition of ceramic particles in theexisting stirring casting method. The 3D printing technology can effectively shorten a research, development and production period of the ceramic porous body.

Description

technical field [0001] The invention relates to the field of aluminum-based composite materials and the technical field of 3D printing, and in particular to a method for preparing an aluminum-based composite material based on 3D printing and the aluminum-based composite material. Background technique [0002] In recent years, particle-reinforced aluminum matrix composites have become a research hotspot of aluminum matrix composites due to their excellent properties such as low density, high specific strength, good dimensional stability, and low thermal expansion coefficient. They are used in aerospace, electronic instruments, and automobiles. widely. At present, the preparation methods of aluminum matrix composites mainly include stirred casting method, powder metallurgy method, melt infiltration method and so on. The powder metallurgy method has a long process flow, complicated procedures, high cost of metal powder, low density of composite materials and limited size of th...

Claims

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Application Information

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IPC IPC(8): C04B41/88C04B35/10C04B35/14C04B35/48C04B35/565C04B35/622C04B38/00B22D23/04B28B1/00B33Y10/00
CPCB22D23/04B28B1/001B33Y10/00C04B35/10C04B35/14C04B35/48C04B35/565C04B35/622C04B38/0038C04B41/009C04B41/5155C04B41/88C04B2235/3418C04B2235/3427C04B2235/48C04B2235/6026C04B2235/656C04B2235/6562C04B2235/6567C04B41/4523C04B41/4521
Inventor 王娟路建宁郑开宏林颖菲冯波
Owner GUANGDONG INST OF NEW MATERIALS
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