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Pomegranate-shaped black ceramic particles for additive manufacturing and its preparation method and application

A black ceramic, additive manufacturing technology, applied in the direction of additive processing, etc., can solve the problems of difficult material forming and low thickness of the cured layer, and achieve the effect of light weight, good light curing performance, and small absorption and scattering

Active Publication Date: 2022-02-08
SHANDONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the problems of low solidified layer thickness and difficult material molding when black materials are prepared by DLP light-curing molding technology in the prior art, the present invention proposes a pomegranate-shaped black ceramic particle for additive manufacturing and its Preparation method and application

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  • Pomegranate-shaped black ceramic particles for additive manufacturing and its preparation method and application
  • Pomegranate-shaped black ceramic particles for additive manufacturing and its preparation method and application
  • Pomegranate-shaped black ceramic particles for additive manufacturing and its preparation method and application

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preparation example Construction

[0038] In the second aspect of the present invention, a method for preparing pomegranate-shaped black ceramic particles for additive manufacturing is provided, including: heating fusible metal, mixing with black ceramic powder, and then preparing composite particles by gas atomization powder.

[0039] Using the aerosol method, the fusible metal and black ceramic powder can be uniformly mixed to make a powder with a smaller size to meet the particle size requirements of light curing.

[0040] Preferably, the mass ratio of fusible metal to black ceramic powder is 3-10:1, preferably 5:1;

[0041] Preferably, the heating temperature is 10-20°C above the melting point of the fusible metal;

[0042] Preferably, the mixing method is ball milling, and the ball milling time is 12-18 hours, preferably 15 hours.

[0043] In one or more embodiments of the present invention, the method for mixing fusible metal and black ceramic powder further includes the step of sieving the composite pa...

Embodiment 1

[0062] The silicon carbide powder material specification is 10,000 mesh, and the melting point of tin-bismuth alloy is 70°C.

[0063] Weigh 500g of tin-bismuth alloy and 100g of black ceramic powder, use tin-bismuth alloy as the coating material, and ball mill the silicon carbide powder and molten tin-bismuth alloy at 90°C for 15 hours, so that the silicon carbide is evenly distributed in the molten state In the tin-bismuth alloy, the molten composite material is prepared, the molten composite material is added to the gas atomization system, and the pomegranate-shaped composite particles of silicon carbide and tin-bismuth alloy are prepared by the gas atomization method, that is, the silicon carbide powder and the Preparation of composite particles of tin-bismuth alloy materials with low absorption and low scattering of ultraviolet light.

[0064] The effective composite particles obtained after sieving through a 1500-mesh sieve were mixed with a photosensitive resin to prepar...

Embodiment 2

[0068] The silicon carbide powder material specification is 10,000 mesh, and the melting point of tin-bismuth alloy is 70°C.

[0069] Weigh 500g of tin-bismuth alloy and 100g of black ceramic powder, use tin-bismuth alloy as the coating material, and ball mill the silicon carbide powder and molten tin-bismuth alloy at 90°C for 15 hours, so that the silicon carbide is evenly distributed in the molten state In the tin-bismuth alloy, the molten composite material is prepared, the molten composite material is added to the gas atomization system, and the pomegranate-shaped composite particles of silicon carbide and tin-bismuth alloy are prepared by the gas atomization method, that is, the silicon carbide powder and the Preparation of composite particles of tin-bismuth alloy materials with low absorption and low scattering of ultraviolet light.

[0070] The effective composite particles obtained after sieving through a 1500-mesh sieve were mixed with a photosensitive resin to prepar...

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Abstract

The invention belongs to the technical field of DLP additive manufacturing of black powder ceramics, and relates to a pomegranate-shaped black ceramic particle for additive manufacturing and its preparation method and application, in particular to a high-quality and efficient DLP for black powder ceramics using fusible metals Methods of Additive Manufacturing. The additive manufacturing method includes: mixing fusible metal with black ceramic powder, preparing ceramic slurry, printing, photocuring, and sintering to obtain black ceramic. Compared with the 3D printing effect of the ceramic slurry prepared by a single black powder, the black powder material of the present invention is evenly distributed in the fusible metal, and the process of preparing pomegranate-shaped composite particles and two-step sintering with the gas atomization method makes the The thickness of the solidified layer of the ceramic material, the density and mechanical properties of the ceramic after sintering are all better than those prepared by a single black powder.

Description

technical field [0001] The invention belongs to the technical field of DLP additive manufacturing of black powder ceramics, and relates to a pomegranate-shaped black ceramic particle for additive manufacturing and its preparation method and application, in particular to a high-quality and efficient DLP for black powder ceramics using fusible metals Methods of Additive Manufacturing. Background technique [0002] The information disclosed in this background section is only intended to increase the understanding of the general background of the present invention, and is not necessarily taken as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. [0003] With the continuous development of high-end equipment manufacturing and material science, 3D additive manufacturing technologies with excellent performance such as high resolution and high molding rate continue to emerge and play an important rol...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/628C04B35/565C04B35/622C04B35/645B33Y70/10
CPCC04B35/62842C04B35/565C04B35/622C04B35/6455B33Y70/10C04B2235/5436C04B2235/6026C04B2235/656C04B2235/6567C04B2235/9661
Inventor 刘战强辛明泽王兵
Owner SHANDONG UNIV