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Spherical titanium powder and preparation method thereof as well as 3D printing product

A technology of spherical titanium powder and hydrogenation dehydrogenation titanium powder is applied in the direction of additive processing, which can solve the problems of high cost and complicated process, and achieve the effects of reducing production cost, simple production process and excellent performance.

Inactive Publication Date: 2019-04-12
SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the commonly used titanium powder preparation methods are mainly gas atomization method and rotating electrode method. These two preparation methods are complicated in process and high in cost. Generally, high-quality titanium powder on the market exceeds 2,000 yuan per kilogram.

Method used

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  • Spherical titanium powder and preparation method thereof as well as 3D printing product
  • Spherical titanium powder and preparation method thereof as well as 3D printing product
  • Spherical titanium powder and preparation method thereof as well as 3D printing product

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A preparation method of spherical titanium powder, specifically comprising the following steps:

[0026] S1. Hydrogenating the titanium sponge to obtain a titanium hydride; wherein, the titanium sponge is grade 1 titanium sponge, the hydrogenation treatment temperature is above 350° C., and the hydrogenation time is 10 hours;

[0027] S2. Mechanically crushing the titanium hydride obtained in step S1 under a protective atmosphere of Ar gas to obtain titanium hydride powder;

[0028] S3. Dehydrogenating the titanium hydride powder obtained in step S2 at a temperature above 500° C. under vacuum conditions to obtain hydrogenated dehydrogenation titanium powder;

[0029] S4. Put the hydrogenated dehydrogenated titanium powder and agate balls obtained in step S3 into the ball mill modification equipment according to the ball-to-material ratio of 5:1, and add ethanol to submerge the hydrogenated dehydrogenated titanium powder and agate balls, and then introduce argon gas , c...

Embodiment 2

[0031] A preparation method of spherical titanium powder, specifically comprising the following steps:

[0032] S1. Hydrogenating the titanium sponge to obtain a titanium hydride; wherein, the titanium sponge is grade 1 titanium sponge, the hydrogenation treatment temperature is above 350° C., and the hydrogenation time is 10 hours;

[0033] S2. Mechanically crushing the titanium hydride obtained in step S1 under a protective atmosphere of Ar gas to obtain titanium hydride powder;

[0034] S3. Dehydrogenating the titanium hydride powder obtained in step S2 at a temperature above 500° C. under vacuum conditions to obtain hydrogenated dehydrogenation titanium powder;

[0035] S4, put the hydrogenated dehydrogenation titanium powder and agate balls obtained in step S3 into the ball mill modification equipment according to the ball-to-material ratio of 4:1, and add ethanol to cover the hydrogenated dehydrogenation titanium powder and agate balls, and then pass into argon air for ...

Embodiment 3

[0037] A preparation method of spherical titanium powder, specifically comprising the following steps:

[0038] S1. Hydrogenating the titanium sponge to obtain a titanium hydride; wherein the titanium sponge is grade 1 titanium sponge, the hydrogenation treatment temperature is above 350° C., and the hydrogenation time is 10 hours.

[0039] S2. Mechanically crushing the titanium hydride obtained in step S1 under a protective atmosphere of Ar gas to obtain titanium hydride powder;

[0040] S3. Dehydrogenating the titanium hydride powder obtained in step S2 at a temperature above 500° C. under vacuum conditions to obtain hydrogenated dehydrogenation titanium powder;

[0041] S4. Put the hydrogenated dehydrogenation titanium powder and agate balls obtained in step S3 into the ball mill modification equipment according to the ball-to-material ratio of 3:1, and add ethanol to submerge the hydrogenated dehydrogenation titanium powder and agate balls, and then pass in argon air for ...

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Abstract

The invention discloses spherical titanium powder and a preparation method thereof. According to the preparation method of the spherical titanium powder, sponge titanium is taken as a raw material, the sponge titanium is subjected to hydrogenation, crushing and dehydrogenation to prepare the hydrogenated dehydrogenated titanium powder, and then ethanol is added to carry out wet-process ball milling to prepare the spherical titanium powder. The adopted raw material, namely, the sponge titanium is low in cost and wide in source, so that the production cost is reduced; the production process is simple, the production period is short, and the required equipment is simple; the spherical titanium powder prepared by the method is round in surface, high in spherical degree, uniform in particle size, good in mobility, excellent in performance, suitable for 3D printing forming, and good in forming performance, and the mechanical property of a formed material is outstanding.

Description

technical field [0001] The invention relates to the technical field of 3D printing material preparation, in particular to a spherical titanium powder and a preparation method thereof. Background technique [0002] Titanium and titanium alloys have low density, high specific strength, outstanding biocompatibility, good corrosion resistance, and low Young's modulus, and have outstanding competitiveness in aerospace, biomedical, and advanced engineering materials. The 3D printing technology of metal materials based on the idea of ​​layer-by-layer additive forming provides a new idea for the integrated design and manufacture of complex structures of titanium alloys. [0003] However, metal 3D printing requires metal powders with high sphericity, suitable particle size, uniform particle size distribution and good fluidity. At present, the commonly used titanium powder preparation methods are mainly gas atomization method and rotating electrode method. These two preparation metho...

Claims

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Application Information

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IPC IPC(8): B22F9/02B22F9/04B33Y70/00B33Y80/00
CPCB22F9/023B22F9/04B33Y70/00B33Y80/00B22F2009/043
Inventor 董阳平严明李玉龙
Owner SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA
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