Preparation method of particle-reinforced metal matrix composite

A composite material and particle-reinforced technology, applied in metal processing equipment, additive processing, additive manufacturing, etc., can solve problems such as difficult to prepare complex structural parts, and achieve the effects of improving efficiency, reducing processing time, and high strength

Active Publication Date: 2017-03-29
XIAN BRIGHT ADDTIVE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to provide a method for preparing particle-reinforced metal matrix composi

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0050] Example 1

[0051] Light curing forms SiC particle reinforced aluminum matrix composite parts.

[0052] 1. Preparation of slurry

[0053] First, select 550g of Al alloy powder with a powder size of 0.5μm to 0.8μm, and 100g of SiC powder with a powder size of 0.4μm to 0.7μm. The two solid powders are as close in size as possible to facilitate particle dispersion in the matrix. Put these two powders into a ball mill, add 2g of quaternary ammonium acetate, dissociate, and mix by ball milling. The time is about 2h. The process of mixing the powder can be carried out in stages, which is conducive to more uniform mixing of the powder.

[0054] Secondly, 395 g of acrylate monomer is selected as the light-curing monomer, preheated to 40° C., the uniformly mixed solid powder is gradually added to the light-curing monomer, and 4 g of dispersant is added. The slurry is in a dark room, and 2 g of benzil dimethyl ether photoinitiator is added and stirred. After stirring uniformly, add 5g...

Example Embodiment

[0060] Example 2

[0061] Light curing forms SiC particle reinforced aluminum matrix composite parts.

[0062] 1. Preparation of slurry

[0063] First, select 570g of Al alloy powder with a powder size of 0.5μm to 0.8μm, and 100g of SiC powder with a powder size of 0.5μm to 0.8μm. The two solid powders are as close in size as possible to facilitate particle dispersion in the matrix. Put these two powders into a ball mill, add 4g of quaternary ammonium acetate, dissociate, and mix by ball milling. The time is about 2h. The process of mixing the powder can be carried out in stages, which is conducive to more uniform mixing of the powder.

[0064] Secondly, select 380g of acrylate monomer and polyurethane acrylate mixture as the light-curing monomer, the mixing ratio is 2:1, preheat to 50℃, gradually add the uniformly mixed solid powder to the light-curing monomer, and then add 8g of dispersant . The slurry is in a dark room, and 3 g of benzil dimethyl ether photoinitiator is added an...

Example Embodiment

[0070] Example 3:

[0071] Light curing to form SiC particles reinforced Ti 2 AlNb composite parts

[0072] 1. Preparation of slurry

[0073] First select 650g of Ti with a particle size of 0.6μm~1.5μm. 2 For AlNb alloy powder, 120g of SiC powder with a particle size of 0.5 μm to 1.0 μm is selected, and the particle size of the two solid powders are as close as possible to facilitate the realization of dispersed particles in the matrix. Put these two powders into a ball mill, add 2.2g of dispersant, dissociate, and mix by ball milling, and the time is about 2h. The solid powder can be evenly divided into three equal parts and mixed in stages to facilitate uniform mixing of the powder.

[0074] Secondly, select 530g of a mixture of acrylate monomer and polyester propyl ether acrylate as the light-curing monomer, the mixing ratio is 1:1, preheat it to 40°C, gradually add the uniformly mixed solid powder to the monomer, and add 4g dispersant. The slurry was in a dark room, and 5 g of ...

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Abstract

The invention discloses a preparation method of a particle-reinforced metal matrix composite. The preparation method comprises the steps that reinforcement powder, metal powder and a dispersing agent are added into a ball grinder to be subjected to ball grinding and mixing, and uniformly-mixed solid powder is obtained; the solid powder obtained after ball grinding is added into a photocuring monomer, then a dispersing agent, a defoaming agent and an anti-settling agent are added, a photoinitiator is added under the dark condition, stirring is carried out, and slurry is obtained; a part three-dimensional model is guided into data processing software for data processing, then the slurry is contained in photocuring equipment, printing parameters are set, and by means of ultraviolet light beams, layer-by-layer printing is carried out according to a design model to prepare a particle-reinforced metal matrix composite part blank; and an organic binder of the cured and formed blank is removed through low-temperature sintering, and then a composite part is formed through sintering. According to the preparation method, the complex part can be formed, dependency on molds can be eliminated, the manufacturing cost can be reduced, the machining duration can be shortened, and the forming efficiency can be improved.

Description

technical field [0001] The invention belongs to the technical field of light-curing forming, and in particular relates to a method for preparing a particle-reinforced metal matrix composite material. Background technique [0002] Particle-reinforced metal matrix composites are composite materials with metal as the matrix and high-strength second phase as the reinforcement. Compared with traditional metal materials, particle-reinforced metal matrix composites have high specific strength, specific stiffness, elastic modulus, wear resistance and low thermal expansion coefficient. These excellent properties determine composite materials in aviation, aerospace, automotive engines, precision Instruments, electronic packaging, sports equipment and other aspects have a wide range of applications. Photocuring 3D printing technology is a technology that uses the sensitivity of photosensitive resin to ultraviolet light to produce a curing reaction. The selection of the curing area can...

Claims

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Application Information

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IPC IPC(8): B22F3/00B22F1/00B33Y10/00B22F1/10B22F10/12B22F10/64
CPCB33Y10/00B22F2998/10B22F10/00B22F1/10B22F10/32B22F10/12B22F10/34B22F10/10B22F3/1021Y02P10/25
Inventor 赵晓明许海嫚徐天文薛蕾王俊伟
Owner XIAN BRIGHT ADDTIVE TECH CO LTD
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