A curved surface gradient ceramic part and its manufacturing method

A technology of ceramic parts and manufacturing methods, which is applied in the field of curved surface gradient ceramic parts and its manufacturing, can solve the problems that plane slice additive manufacturing technology is difficult to realize, and achieve the effect of broad application prospects

Active Publication Date: 2021-10-08
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The application of curved surface gradient ceramics is very wide, but how to realize the manufacture of such ceramics is a great challenge, and the current planar slice additive manufacturing technology is difficult to achieve

Method used

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  • A curved surface gradient ceramic part and its manufacturing method
  • A curved surface gradient ceramic part and its manufacturing method
  • A curved surface gradient ceramic part and its manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The method of manufacturing the surface gradient ceramic parts provided in Example 1 of the present invention mainly includes the following steps:

[0039] Step (a): The acrylic resin, 2,2-dimethoxy-2-phenylceneethylenethylideophenone, polyacrylate is uniformly mixed, wherein the quality of the photoinitiator is a photosensitive resin mass. 1 wt%, the mass of the dispersant is 2 wt% of the mass of ceramic powder. Next, weigh the appropriate amount of Al 2 O 3 Zro 2 Ceramic powder, adjust the ratio of each component, and then mixed the ceramic powder and the photosensitive premixing mixed with gas in the planetary ball mill, and finally obtained Al 2 O 3 Ceramic powder in ceramic paste accounts for 40 vol%, photosensitive premix 60 vol%; Zro 2 Ceramic powder in ceramic paste accounts for 60 vol%, and 40 vol% of the photosensitive premix.

[0040] Step (b): The computer assist software is used to design a surface characteristic of the surface characteristics, and the modeling...

Embodiment 2

[0044] The method of manufacturing the surface gradient ceramic parts provided in Example 2 of the present invention mainly includes the steps of:

[0045] Step (a): Mix the acrylic resin, 1-hydroxycyclohexylphenyl ketone, and sodium polyacrylate to be uniformly mixed, wherein the quality of the photoinitiator is 2 wt% of the photosensitive resin mass, the mass of the dispersant. It is 3 wt% of the mass of ceramic powder. Next, weigh the appropriate amount of Al 2 O 3 Zro 2 Ceramic powder, adjust the ratio of each component, and then mixed the ceramic powder and the photosensitive premixing mixed with gas in the planetary ball mill, and finally obtained Al 2 O 3 Ceramic powder in ceramic paste accounts for 50 vol%, 50 vol% of photosensitive premix; Al 2 O 3 / Zro 2 Composite ceramic paste in Al 2 O 3 Zro 2 Ceramic powder accounted for 50 vol%, 50 vol% of the photosensitive premix.

[0046] Step (b): Designing the surface characteristics of the surface characteristics by computer a...

Embodiment 3

[0050] The method of manufacturing surface gradient ceramic parts provided in Example 3 of the present invention mainly includes the following steps:

[0051] Step (a): Ephenyl phosphine, 2,4,6-trimethylbenzoyl-diphenyl oxide, tetramethylammonium hydroxide, is uniformly mixed, wherein the photoinitiator The mass is 3% by weight of the mass of the photosensitive resin, the mass of the dispersant is 4 wt% of the mass of ceramic powder. Next, weigh the appropriate amount of Si 3 N 4 The ceramic powder, adjusts the ratio of each component, and then mixed the ceramic powder and the photosensitive pre-mixture in the planetary ball mill, and finally obtaining a component Si. 3 N 4 Ceramic powder in ceramic paste accounts for 60 vol%, photosensitive premix 40 vol%; B component Si 3 N 4 Ceramic powder in ceramic paste accounted for 40 vol%, photosensitive premix 60 vol%.

[0052] Step (b): The use of computer assist software to design a surface gradient ceramic parts model with surface fea...

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Abstract

The invention belongs to the technical field related to additive manufacturing, and discloses a curved surface gradient ceramic part and a manufacturing method thereof. The manufacturing method includes the following steps: (1) slice along the model surface of the curved surface gradient ceramic part to be manufactured, and Realize the layering of the model along the curved surface; (2) Using a variety of ceramic pastes with different components as raw materials, combined with the results of the layering, first spread the ceramic paste of the first component along the curved surface of the model and cure it with ultraviolet light , then spread the ceramic paste of the second component along the curved surface of the model and cure it with ultraviolet light, and repeat this process until the ceramic paste of all components is laid and cured, thus obtaining the gradient ceramic part to be manufactured The blank, and then get the surface gradient ceramic parts. The invention adopts curved surface to cover ceramic paste, and adopts ultraviolet light to irradiate and solidify layer by layer, which can well solve the problem that the curved surface gradient ceramic parts are difficult to manufacture.

Description

Technical field [0001] The present invention belongs to the additive manufacturing the related art, and more particularly, to a ceramic part surface gradient and its manufacturing method. Background technique [0002] Ceramic surface gradient is a new structure of the ceramic, which in combination with the surface structure and material gradient, such that the overall performance ceramics have superior mechanical, biological, and other wave-transparent, ceramic missile radome example, its role is to protect work and missile radar antenna, which requires that it not only has good aerodynamic shape and wave-transparent properties, but also have a certain strength and rigidity to withstand the aerodynamic loads acting. Manufacturing problems mainly missile radome difficult to combine good wave penetration properties, mechanical strength, corrosion resistance, high temperature resistance and other excellent properties. Ceramic surface gradient can solve this problem, the laminate may...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/488C04B35/119C04B35/587C04B35/81C04B35/622C04B35/626C04B35/634C04B35/638C04B35/64B33Y10/00B33Y70/10B28B19/00
CPCB28B19/0015B33Y10/00B33Y70/10C04B35/119C04B35/4885C04B35/587C04B35/622C04B35/6263C04B35/63424C04B35/63452C04B35/638C04B35/64C04B2235/3826C04B2235/5276C04B2235/6026C04B2235/656C04B2235/6562C04B2235/6567
Inventor 吴甲民何俊宏刘荣臻陈双陈安南陆路史玉升李晨辉
Owner HUAZHONG UNIV OF SCI & TECH
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