Preparation method of zirconium nitride powder material for 3DP (three-dimensional printing) forming

A technology of zirconium nitride powder and solid materials, which is applied in the direction of additive processing, etc., can solve the problems of increasing the production cost, and achieve the effects of low production cost, uniform particle size, and reduced environmental pollution

Inactive Publication Date: 2017-02-08
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the preparation methods of zirconium nitride mainly include: powder pressing and sintering method, sol-gel method and reaction sintering method. If the shape of the sample changes slightly, the mold needs to be prepared again or the sample needs to be machined, thus increasing the cost of preparation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] (1) Preparation of granulated zirconium nitride: In the reactor, add water: 6L, polyvinyl butyral: 100 g, heat to dissolve, after cooling, add sodium hexametaphosphate: 15 g, stir to dissolve, Then add zirconium nitride powder: 4000 g, stir vigorously, react for 75 minutes, and then spray dry to obtain granulated zirconium nitride with a particle size in the range of 30-120 µm;

[0023] (2) Preparation of zirconium nitride powder materials for 3DP molding: In the grinder, add granulated zirconium nitride: 88 g, epoxy resin: 4 g, dicyandiamide: 0.4 g, and turn on the grinder Rotate at 200 rpm, grind for 20 min, N,N-dimethylformamide: 8 mL, grind at 200 rpm, grind for 25 min, and dry to obtain zirconium nitride powder material for 3DP molding. The particle size of the obtained zirconium nitride powder material for 3DP molding is in the range of 30-150 μm.

Embodiment 2

[0025] (1) Preparation of granulated zirconium nitride: In the reactor, add water: 6L, polyvinyl butyral: 100 g, heat to dissolve, after cooling, add sodium hexametaphosphate: 15 g, stir to dissolve, Then add zirconium nitride powder: 4000 g, stir vigorously, react for 75 minutes, and then spray dry to obtain granulated zirconium nitride with a particle size in the range of 30-120 µm;

[0026] (2) Preparation of zirconium nitride powder materials for 3DP molding: in the grinder, add granulated zirconium nitride: 90 g, epoxy resin: 5 g, dicyandiamide: 1.0 g, and turn on the grinder speed Grind at 200 rpm for 20min, N,N-dimethylformamide: 6mL, mill at 200 rpm, grind for another 20min, and dry to obtain a zirconium nitride powder material for 3DP molding. The particle size of the zirconium nitride powder material used for 3DP molding is in the range of 30~150μm.

Embodiment 3

[0028] (1) Preparation of granulated zirconium nitride: In the reactor, add water: 6L, polyvinyl butyral: 100 g, heat to dissolve, after cooling, add sodium hexametaphosphate: 15 g, stir to dissolve, Then add zirconium nitride powder: 4000 g, stir vigorously, react for 75 minutes, and then spray dry to obtain granulated zirconium nitride with a particle size in the range of 30-120 µm;

[0029](2) Preparation of zirconium nitride powder materials for 3DP molding: in the grinder, add granulated zirconium nitride: 86 g, epoxy resin: 3 g, dicyandiamide: 0.3 g, and turn on the grinder Rotate at 200 rpm, grind for 20 min, N,N-dimethylformamide: 10 mL, grind at 200 rpm, grind for 30 min, and dry to obtain zirconium nitride powder material for 3DP molding. The particle size of the obtained zirconium nitride powder material for 3DP molding is in the range of 30-150 μm.

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Abstract

The invention discloses a preparation method of a zirconium nitride powder material for 3DP (three-dimensional printing) forming. The method is characterized by comprising the following steps: adding polyvinyl butyral and sodium hexametaphosphate into zirconium nitride, and carrying out spray drying to obtain granulated zirconium nitride of which the granularity is 30-120 mu m; and adding 86-90 wt% of granulated zirconium nitride, 3-6 wt% of epoxy resin and 0.3-1.5 wt% of dicyandiamide into a grinder, starting the grinder, and grinding at the rotation speed of 200 rpm for 20 minutes, adding 6-10 wt% of N,N-dimethylformamide (totaling 100 wt%), grinding at the rotation speed of 200 rpm for 20-30 minutes, and drying to obtain the zirconium nitride powder material for 3DP forming. The granularity of the obtained zirconium nitride powder material for 3DP forming is 30-150 mu m. The material can be directly formed on a 3D printer, and has high forming precision. The preparation method has the advantages of simple technique, controllable conditions and low production cost, and can easily implement industrial production.

Description

technical field [0001] The invention relates to a preparation method for a three-dimensional printing (3DP) rapid prototyping powder material, which belongs to the field of rapid prototyping materials, and in particular to a preparation method and application of a zirconium nitride powder material for 3DP molding. Background technique [0002] 3D printing is a technology that accumulates materials into three-dimensional products layer by layer through model design and printing equipment, also known as additive manufacturing. 3D printing integrates many cutting-edge fields such as digital modeling, electromechanical control, information technology, material science and chemistry, and is one of the core technologies of the "third industrial revolution". 3D printing technology has been gradually expanded in the fields of aerospace, biomedicine, construction, and handicraft manufacturing. Its advantages of convenience, speed, and improved material utilization continue to emerge,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/58C04B35/626C04B35/628B33Y70/00B33Y10/00
CPCB33Y10/00B33Y70/00C04B35/58035C04B35/62695C04B35/62823C04B2235/447C04B2235/95
Inventor 李慧芝许崇娟郭方全
Owner UNIV OF JINAN
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