A kind of preparation method of particle reinforced metal matrix composite material
A composite material and particle reinforcement technology, applied in metal processing equipment, additive processing, additive manufacturing, etc., can solve problems such as difficulty in preparing complex structural parts, and achieve the effect of improving efficiency, high strength and reducing processing time.
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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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