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A light-cured 3D printing metal-ceramic composite material and its preparation method

A ceramic composite material and 3D printing technology, which is applied in the field of additive manufacturing, can solve problems such as obstruction, low light transmission depth, and easy agglomeration, and achieve the effects of improving refraction effect, excellent wear resistance, and promoting dispersion

Active Publication Date: 2022-03-08
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 3D printing fits the development plan of this requirement very well, but additive manufacturing technologies such as selected laser melting (SLM) and electron beam melting (EBM) commonly used at this stage are difficult to meet the preparation requirements of composite materials, and it is necessary to seek new Method to prepare high-end structural materials composed of inorganic non-metallic materials and metal materials
However, the low light transmission depth, easy agglomeration and poor dispersion of metal materials in the resin slurry, and the inability to obtain a complete light-cured structure have always hindered this technology in the preparation and processing of metal and metal-ceramic composite parts. field application

Method used

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  • A light-cured 3D printing metal-ceramic composite material and its preparation method
  • A light-cured 3D printing metal-ceramic composite material and its preparation method
  • A light-cured 3D printing metal-ceramic composite material and its preparation method

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preparation example Construction

[0048] On the one hand, the embodiment of the present invention proposes a kind of preparation method of photocuring 3D printing metal-ceramic composite material, such as figure 1 As shown, it includes the following steps:

[0049] Prepare the core-shell material: mix the metal powder after the surface activation treatment and the ceramic powder after the surface activation treatment, add a surface curing agent and a surface polymerization initiator to it, and perform a coating step; After treatment, a core-shell material with metal powder as the core and a ceramic coating as the shell is obtained; wherein the metal powder is pure metal powder and / or alloy powder.

[0050] This step is specifically as follows: after mixing the metal powder and the metal surfactant, stir in a beaker with a constant temperature of 50-60° C. for 60-120 minutes with a mechanical stirrer to obtain the activated metal powder. After mixing the nano-ceramic powder and the ceramic surfactant, stir it ...

Embodiment 1

[0064] This embodiment prepares a light-cured 3D printing metal-ceramic composite material, comprising the following steps:

[0065] Preparation of core-shell material: Mix metal Ni powder and metal surfactant in a constant temperature 50°C beaker and stir for 60 minutes with a mechanical stirrer; ZrO 2 After the powder is mixed with the ceramic surfactant, stir it in a beaker at a constant temperature of 70°C for 90 minutes with a mechanical stirrer; mix the surface curing agent and the surface polymerization initiator in the beaker, and stir it mechanically for 5 minutes, then set aside. The activated metal Ni powder, the activated ZrO 2 The powders are mixed, and then in the process of mechanical stirring at a constant temperature of 80°C, the mixed solution of the surface curing agent and the surface polymerization initiator is slowly added thereto, and stirred at a constant temperature of 80°C for 10 hours. The product was taken out, washed with deionized water, and drie...

Embodiment 2

[0075] This embodiment prepares a light-cured 3D printing metal-ceramic composite material, comprising the following steps:

[0076] Prepare the core-shell material: alloy CoNiCrAlY powder (wherein, the mass fraction of Co is 54%, the mass fraction of Ni is 23%, the mass fraction of Cr is 17%, the mass fraction of Al is 5.5%, the mass fraction of Y is 0.5% %) is mixed with metal surface active agent and utilizes mechanical stirrer to stir 100 minutes in the beaker of constant temperature 60 ℃; Al 2 o 3 Mix the powder with the ceramic surfactant and stir it in a beaker with a constant temperature of 80°C for 120 minutes with a mechanical stirrer; mix the surface curing agent and the surface polymerization initiator in the beaker and stir it mechanically for 1 minute. The activated alloy CoNiCrAlY powder, Al 2 o 3 The powders are mixed, and then in the process of mechanical stirring at a constant temperature of 120°C, the mixed solution of the surface curing agent and the sur...

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Abstract

The present invention relates to a light-cured 3D printed metal-ceramic composite material and its preparation method, wherein the preparation method comprises the following steps: after mixing the surface-activated metal powder and the surface-activated ceramic powder, Adding a surface curing agent and a surface polymerization initiator to it, and performing a coating step; post-processing the product obtained in the coating step to obtain a core-shell material with the metal powder as the core and the ceramic coating as the shell; photocuring Resin, photoinitiator, dispersant, and the core-shell material are formulated into a 3D printing slurry; the 3D printing slurry is cured and molded by a light-curing 3D printing device to obtain a light-curing 3D printing biscuit; The blank is degreased and sintered to obtain a metal-ceramic composite material. The invention improves the dispersion of the metal powder in the photosensitive resin and the ultraviolet light curing characteristics with a simple process, so that a metal-ceramic composite material part with excellent performance is prepared by the light curing 3D printing technology.

Description

technical field [0001] The invention relates to the technical field of additive manufacturing, in particular to a light-cured 3D printed metal-ceramic composite material and a preparation method thereof. Background technique [0002] With the development of science and technology, modern mechanical equipment parts are required to have higher wear resistance and mechanical strength, and at the same time, mechanical parts are also required to have complex, thin-walled, and porous structures to meet more harsh service environments. my country's raw material industry has a huge scale, some industries have overcapacity, and constraints on resources, energy, and the environment are increasingly intensified. It is urgent to vigorously develop new technologies for material processing, accelerate the transformation and upgrading of the material industry, and cultivate new growth points. It is necessary to vigorously research and develop key technologies for special metal functional m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F10/12B22F1/16B22F3/10B33Y10/00B33Y70/10B33Y80/00
CPCB22F3/10B33Y10/00B33Y70/10B33Y80/00B22F1/10B22F1/16
Inventor 梁静静李乔磊李金国周亦胄孙晓峰
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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