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Preparation method for rapidly forming YAG transparent ceramic powder material by 3DP (three-dimensional printing) technology

A technology of transparent ceramics and powder materials, applied in the direction of additive processing, etc., can solve the problems of easy clogging of nozzles, large amount of adhesive, and poor control, etc., achieve good fluidity, low production cost, and prevent nozzles from clogging.

Inactive Publication Date: 2017-01-25
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this molding process also has certain limitations. The amount of adhesive used is large, which is difficult to control, and the adhesive is easy to block the nozzle.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] (1) YAG transparent ceramic powder pretreatment: YAG transparent ceramic powder is dried, ground, sieved, and the particle size is controlled within the range of 0.1-5 μm to obtain pretreated YAG transparent ceramic powder;

[0027](2) Preparation of granulated YAG transparent ceramic powder: In the reactor, add water: 5400mL, water-soluble urea-formaldehyde resin: 50g, soluble starch: 50g, heat to dissolve, sodium hexametaphosphate: 20g, stir to dissolve, and then Add pretreated YAG transparent ceramic powder: 4500g, stir vigorously, react for 6h, and then spray dry to obtain granulated YAG transparent ceramic powder, the particle size of which is in the range of 40~100µm;

[0028] (3) Preparation of YAG transparent ceramic powder formed by laser sintering and 3D printing: In the mixer, add and granulate YAG transparent ceramic powder: 880g, zinc stearate: 6g, trimellitic anhydride: 4g, and turn on the mixer at 300 rpm / min, stirring for 30min, heating until the temper...

Embodiment 2

[0030] (1) YAG transparent ceramic powder pretreatment: YAG transparent ceramic powder is dried, ground, sieved, and the particle size is controlled within the range of 0.1-5 μm to obtain pretreated YAG transparent ceramic powder;

[0031] (2) Preparation of granulated YAG transparent ceramic powder: In the reactor, add water: 5200mL, water-soluble urea-formaldehyde resin: 100g, soluble starch: 100g, heat to dissolve, sodium hexametaphosphate: 40g, stir to dissolve, and then Add pre-treated YAG transparent ceramic powder: 4600g, stir vigorously, react for 5h, and then spray dry to obtain granulated YAG transparent ceramic powder, the particle size of which is in the range of 40~100µm;

[0032] (3) Preparation of YAG transparent ceramic powder formed by laser sintering and 3D printing: In a blender, respectively add and granulate YAG transparent ceramic powder: 90g, zinc stearate: 0.5g, trimellitic anhydride: 0.5g, and turn on the mixer at a speed of 300 rev / min, stirring for 3...

Embodiment 3

[0034] (1) YAG transparent ceramic powder pretreatment: YAG transparent ceramic powder is dried, ground, sieved, and the particle size is controlled within the range of 0.1-5 μm to obtain pretreated YAG transparent ceramic powder;

[0035] (2) Preparation of granulated YAG transparent ceramic powder: In the reactor, add water: 5600mL, water-soluble urea-formaldehyde resin: 80g, soluble starch: 80g, heat to dissolve, sodium hexametaphosphate: 10g, stir to dissolve, and then Add pretreated YAG transparent ceramic powder: 4300g, stir vigorously, react for 7 hours, and then spray dry to obtain granulated YAG transparent ceramic powder, the particle size of which is in the range of 40~100µm;

[0036] (3) Preparation of YAG transparent ceramic powder formed by laser sintering and 3D printing: In a blender, add and granulate YAG transparent ceramic powder: 170g, zinc stearate: 3g, trimellitic anhydride: 3g, and turn on the mixer at 300 rpm / min, stirring for 30min, heating until the ...

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Abstract

The invention discloses a preparation method for rapidly forming a YAG transparent ceramic powder material by a 3DP (three-dimensional printing) technology. The preparation method includes firstly, granulating YAG transparent ceramic powder to make the same become granulated powder with the grain size 0.1-0.5 micrometer; then, adding, by mass, 85-92% of the granulated YAG transparent ceramic powder, 0.5-1.5% of zinc stearate and 0.2-1.0% of trimellitic anhydride into a stirrer, stirring for 30 minutes at a speed of 300 rpm, heating to reach the temperature of 160-180 DEG C, adding, by mass, 2-8% of ABS resin and 2-8% of thermoplastic phenolic resin with stirring, and continuing stirring at the revolving speed of 350 rpm until the temperature is decreased to the room temperature so as to obtain laser-sintering 3D printing forming type YAG transparent ceramic powder. The laser-sintering 3D printing forming type YAG transparent ceramic powder can be directly formed on a 3D printer and is high in sphericity degree, good in fluidity and high in forming precision. The preparation method has the advantages of simple preparation technologies, easiness in condition control and low production cost, thereby being applied to industrialized production easily.

Description

technical field [0001] The invention relates to a method for preparing a powder material for rapid prototyping in a three-dimensional printing (3DP) process, which belongs to the field of rapid prototyping materials, and in particular to a method for preparing a rapid prototyping YAG transparent ceramic powder material in a 3DP process and 3D printing molding . Background technique [0002] YAG, is the abbreviation of yttrium aluminum garnet, the chemical formula is Y 3 al 5 o 12 , by Y 2 o 3 and Al 2 o 3 A composite oxide formed by the reaction, which belongs to the cubic crystal system and has a garnet structure. The unit cell of garnet can be viewed as a linked network of dodecahedrons, octahedrons, and tetrahedra. Since Ikesue used the solid-state reaction sintering method to prepare Nd:YAG transparent ceramics in 1995 and realized continuous laser output, laser ceramics have achieved rapid development due to their short preparation cycle, easy realization of uni...

Claims

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Application Information

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IPC IPC(8): C04B35/44C04B35/505C04B35/626C04B35/622C04B35/64B33Y70/00B33Y10/00
CPCB33Y10/00B33Y70/00C04B35/44C04B35/505C04B35/622C04B35/626C04B35/6261C04B35/62695C04B35/64C04B2235/665
Inventor 李慧芝李冬梅戚玉华
Owner UNIV OF JINAN
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