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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 composites, which solves the problem that the existing preparation methods are difficult to prepare parts with complex structures

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Photocuring to form SiC particle reinforced aluminum matrix composite parts.

[0052] 1. Preparation of Slurry

[0053] First, 550g of Al alloy powder with a particle size of 0.5 μm to 0.8 μm is selected, and 100 g of SiC powder with a powder size of 0.4 μm to 0.7 μm is selected. The particle size of the two solid powders is as close as possible to facilitate the dispersion of particles in the matrix. Put the two powders into a ball mill, add 2g of quaternary ammonium acetate, carry out dissociation and ball milling for about 2 hours. The process of mixing powder can be carried out in batches, which is conducive to more uniform mixing of powder.

[0054] Next, select 395g of acrylate monomer as the photocurable monomer, preheat to 40°C, gradually add the uniformly mixed solid powder into the photocurable monomer, and then add 4g of dispersant. The slurry is in a dark room, and 2 g of benzyl dimethyl ether photoinitiator is added, and stirred. After stirring evenly, a...

Embodiment 2

[0061] Photocuring to form SiC particle reinforced aluminum matrix composite parts.

[0062] 1. Preparation of Slurry

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

[0064] Secondly, select 380g of acrylate monomer and urethane acrylate mixture as light-curing monomer, the mixing ratio is 2:1, preheat to 50°C, gradually add the uniformly mixed solid powder into the light-curing monomer, and then add 8g of dispersant . The slurry is placed in a dark room, and 3 g of benzil dimeth...

Embodiment 3

[0071] Photocuring to Form SiC Particles Reinforced Ti 2 AlNb composite parts

[0072] 1. Preparation of Slurry

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

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

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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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