Photocuring aluminum oxide ceramic paste and atomization cavity integrated forming method thereof

A technology of alumina ceramics and atomization cavity, which is applied in the direction of additive processing, etc., can solve the problems of affecting the marketization of atomization cavity parts, high cost, and lengthy research and development cycle of new structures.

Pending Publication Date: 2021-06-08
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the traditional methods of preparing atomization chambers include injection molding, gel injection molding, etc., relying on moulds, composite molding, tradi

Method used

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  • Photocuring aluminum oxide ceramic paste and atomization cavity integrated forming method thereof
  • Photocuring aluminum oxide ceramic paste and atomization cavity integrated forming method thereof
  • Photocuring aluminum oxide ceramic paste and atomization cavity integrated forming method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Embodiment 1, a light-cured alumina ceramic paste, including ceramic powder, stearic acid powder, premix and dispersant;

[0037] The ceramic powder is Al 2 o 3 Mixture of powder and sintering aid, Al in ceramic powder 2 o 3 The mass proportion of the powder is 95%, and the balance is a sintering aid, and the sintering aid is CaO powder, MgO powder and SiO 2 A mixture of powders in which SiO 2 Accounting for 3% of the mass of the ceramic powder, MgO accounting for 1% of the mass of the ceramic powder, CaO accounting for 1% of the mass of the ceramic powder; Al 2 o 3 The powder includes Al with a particle size of 3 μm 2 o 3 Powder and Al with a particle size of 0.3 μm 2 o 3 Powder, the mass ratio of 3 μm powder to 0.3 μm powder is 7:3; the particle size of the sintering aid is 0.5 μm, and the mass of the sintering aid accounts for 5% of the mass of the ceramic powder;

[0038] The content of the stearic acid powder is 0.5% of the ceramic powder mass;

[0039] ...

Embodiment 2

[0048] Embodiment 2, a light-cured alumina ceramic paste, including ceramic powder, stearic acid powder, premix and dispersant;

[0049] The ceramic powder is Al 2 o 3 Mixture of powder and sintering aid, Al in ceramic powder 2 o 3 The mass proportion of powder is 96%, and the balance is sintering aid, which includes CaO powder, MgO powder, SiO 2 Powder, SiO2 accounts for 2% of the mass of ceramic powder, MgO accounts for 1% of the mass of ceramic powder, CaO accounts for 1% of the mass of ceramic powder; Al 2 o 3 The powder includes Al with a particle size of 3 μm 2 o 3 Powder and Al with a particle size of 0.3 μm 2 o 3 Powder, the mass ratio of 3 μm powder to 0.3 μm powder is 7:3; the particle size of the sintering aid is 0.5 μm, and the mass of the sintering aid accounts for 4% of the mass of the ceramic powder;

[0050] The content of the stearic acid powder is 0.3% of the ceramic powder mass;

[0051] The quality of the premixed liquid is 35% of the mass of the ...

Embodiment 3

[0059] Embodiment 3, a light-cured alumina ceramic paste, including ceramic powder, stearic acid powder, premix and dispersant;

[0060] The ceramic powder is Al 2 o 3 Mixture of powder and sintering aid, Al in ceramic powder 2 o 3 The mass proportion of powder is 97%, and the balance is sintering aid, which includes CaO powder, SiO 2 Powder, SiO2 accounts for 2% of the mass of ceramic powder, CaO accounts for 1% of the mass of ceramic powder; Al 2 o 3 The powder includes Al with a particle size of 3 μm 2 o 3 Powder and Al with a particle size of 0.3 μm 2 o 3 Powder, the mass ratio of 3 μm powder to 0.3 μm powder is 7:3; the particle size of the sintering aid is 0.5 μm, and the mass of the sintering aid accounts for 3% of the mass of the ceramic powder;

[0061] The content of the stearic acid powder is 0.3% of the ceramic powder mass;

[0062] The quality of the premixed liquid is 45% of the ceramic powder mass; the premixed liquid includes a mixture A and a photoin...

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Abstract

The invention discloses a photocuring aluminum oxide ceramic paste and an atomization cavity integrated forming method thereof. The paste comprises ceramic powder, stearic acid powder, premixed liquid and a dispersing agent. The forming method comprises the following steps: printing the photo-cured aluminum oxide ceramic paste into an atomization cavity structure, and then performing degreasing and sintering; and adjusting atomization cavity structure parameters, printing process parameters and degreasing sintering process parameters. The atomization cavity structure parameters comprise the overall wall thickness and the connecting fillet radius of an atomization cavity; the printing process parameters comprise a printing support gap, printing laser power, layer thickness and curing depth; and the degreasing sintering process parameters comprise heating rate, powder burying amount, pre-sintering temperature, degreasing temperature point and heat preservation time. By optimizing the components of the photocuring aluminum oxide ceramic paste, the structure of the atomization cavity and the post-treatment process, the performance (strength, corrosion resistance and the like) of the aluminum oxide atomization cavity is improved, the cracking deformation of the atomization cavity in the preparation process is reduced, and the preparation yield of the atomization cavity is further improved.

Description

technical field [0001] The invention belongs to the technical field of ceramic atomization chamber preparation, and in particular relates to a light-cured alumina ceramic paste and an integrated forming method of the atomization chamber. Background technique [0002] The main function of the atomization chamber is to reduce sample carryover and sample loss due to adsorption, and the second is to eliminate or slow down the pulse phenomenon mainly caused by the peristaltic pump in the atomization process, so as to obtain higher aerosol transmission efficiency and make the gas The sol mist particles can be rapidly desolvated, evaporated and atomized after reaching the plasma. At present, the traditional methods of preparing atomization chambers include injection molding, gel injection molding, etc., relying on molds and composite molding. Traditional molding leads to long research and development cycles and high costs for new product structures, which seriously affects the mark...

Claims

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Application Information

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IPC IPC(8): C04B35/10C04B35/622C04B35/638C04B35/64B33Y50/02B33Y70/10B33Y10/00
CPCC04B35/10C04B35/622C04B35/638C04B35/64B33Y50/02B33Y70/10B33Y10/00C04B2235/3225C04B2235/3208C04B2235/3206C04B2235/3418C04B2235/6562C04B2235/6567C04B2235/6565
Inventor 鲍崇高许海嫚满积友刘荣臻李世佳
Owner XI AN JIAOTONG UNIV
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