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A kind of low oxidation metal powder and its preparation method and sealed ball mill for preparation

A metal powder, low-oxidation technology, applied in the field of metal powder processing, can solve the problems of failing to meet process requirements and reducing the purity of metal powder, and achieve the effect of reducing sealing requirements and ensuring purity

Active Publication Date: 2019-02-26
宝鸡泰力松新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of metal powder processing, it needs to be sieved and dehydrogenated and deoxidized. The metal powder after dehydrogenated and deoxidized is generally in a bonded state. It is necessary to put the metal powder cohesive block into a ball mill for grinding. However, when the existing ball mill breaks and grinds the metal powder cohesive block, the purity of the metal powder is often reduced due to the high oxygen content in the metal powder, which cannot meet the process requirements.

Method used

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  • A kind of low oxidation metal powder and its preparation method and sealed ball mill for preparation
  • A kind of low oxidation metal powder and its preparation method and sealed ball mill for preparation

Examples

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Effect test

Embodiment 1

[0035] A titanium suboxide powder, the particle size is 100 mesh, the oxygen content is less than 0.15%, the nitrogen content is less than 0.02%, and the hydrogen content is less than 0.03%. It is ground into 100-mesh powder, and the powder is subjected to dehydrogenation and oxygen reduction treatment to obtain agglomerated metal suboxidation powder with an oxygen content of less than 0.15%, and then the agglomerated metal suboxidation powder is ground into powder under inert gas conditions , That is, titanium suboxide powder with a particle size of 100 mesh. Among them, the dehydrogenation and oxygen reduction treatment is carried out by conventional technology.

Embodiment 2

[0037] A low-oxidation Ti6Al4V powder, the particle size is 200 mesh, the oxygen content is less than 0.15%, the nitrogen content is less than 0.02%, and the hydrogen content is less than 0.03%. Grinding into 100-mesh powder, dehydrogenating and deoxidizing the powder to obtain agglomerated low-oxidized Ti6Al4V powder with an oxygen content of less than 0.15%, and then pulverizing the agglomerated low-oxidized Ti6Al4V powder into powder under inert gas conditions, That is, the low-oxidation Ti6Al4V powder with a particle size of 200 meshes was obtained. Among them, the dehydrogenation and oxygen reduction treatment is carried out by conventional technology.

[0038] The low-oxidation metal powder prepared in the above examples 1-2 has low oxygen content and high purity, and the preparation process does not affect its purity. The powder particle size is uniform, high in quality, and low in cost. It can be used as a spherical powder raw material for 3D printing, and powder cold ...

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Abstract

The invention provides low oxidation metal powder, a preparation method thereof and a sealed ball mill used for preparing the low oxidation metal powder. The oxygen content of the low oxidation metal powder is smaller than 0.15%. The preparation method of the low oxidation metal powder comprises the following steps that S002, raw materials of the low oxidation metal powder are ground into powder, then the powder is subjected to dehydrogenation and deoxygenation treatment, and low oxidation metal powder agglomerates of which the oxygen content is smaller than 0.15% are obtained; and S004, the low oxidation metal powder agglomerates are ground into powder under the anaerobic condition, so that the low oxidation metal powder is obtained. The sealed ball mill used for preparing the low oxidation metal powder comprises a rack, a ball milling barrel and a motor. The rack is provided with a sealed barrel. One end of the sealed barrel is provided with an opening. The opening is provided with a sealing cover. The other end of the sealed barrel is provided with a shaft hole. The ball milling barrel is arranged in the sealed barrel. One end of the ball milling barrel is provided with a material opening. The material opening is provided with a material cover. The other end of the ball milling barrel is provided with a rotating shaft. The rotating shaft penetrates through the shaft hole and extends out to the outer side of the sealed barrel. A main shaft of the motor is in drive connection with the rotating shaft of the ball milling barrel through a transmission mechanism.

Description

technical field [0001] The invention belongs to the technical field of metal powder processing, and in particular relates to a low-oxidation metal powder, a preparation method thereof, and a sealed ball mill for preparation. Background technique [0002] The oxygen content of the metal powder for 3D printing has a direct impact on the quality of the printing effect, the lower the oxygen content, the better the printing effect. During the processing of metal powder, it needs to be sieved and dehydrogenated and deoxidized. The metal powder after dehydrogenated and deoxidized treatment is generally in a bonded state. It is necessary to put the metal powder bonded block into a ball mill for grinding. However, when the existing ball mill breaks and grinds the metal powder cohesive block, the purity of the metal powder is often reduced due to the high oxygen content in the metal powder, which cannot meet the process requirements. Contents of the invention [0003] To solve the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F1/00B22F9/04
CPCB22F1/0003B22F9/04B22F2009/043
Inventor 陈庆谊刘立新董文卫成佳佳李小阳李少萌
Owner 宝鸡泰力松新材料有限公司
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