High-purity metal vanadium powder and preparation method thereof

A metal, high-purity technology, applied in the field of high-purity metal vanadium powder and its preparation, can solve the problems of unsatisfactory purity of metal vanadium powder, related impurity element types and quantity constraints, etc., achieve high production efficiency and improve comprehensive performance.

Inactive Publication Date: 2020-06-16
GRIMAT ENG INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The purity of metal vanadium powder prepared by the above two methods cannot meet the restrictions on impurity elements and gas elements of nuclear fusion structural materials, and does not restrict the type and quantity of related impurity elements.

Method used

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  • High-purity metal vanadium powder and preparation method thereof

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Comparison scheme
Effect test

Embodiment 1

[0023] A kind of high-purity metal vanadium powder, this metal vanadium powder comprises following components and content (weight):

[0024] (1) Composition: Fe content: 0.017%, Si content: 0.01%, Cr content: 0.026%, Al content: ≤0.01%, O content: ≤0.026%, V content: balance (weight percentage);

[0025] (2) Particle size: -100 mesh (standard mesh number).

[0026] The preparation process of the high-purity metal vanadium powder comprises the following steps:

[0027] (1) Electrode rod preparation: the metal vanadium prepared by the molten salt electrolysis method is prepared by vacuum electron beam melting into a metal vanadium round rod with a diameter of φ50mm, and is machined into an electrode rod with a diameter of φ40mm×300mm;

[0028] (2) Electrode rod loading: the electrode rod is loaded into the atomization chamber of the atomization device through the mechanical shaft, the electrode rod extends into the atomization chamber, and the length of the electrode rod rising...

Embodiment 2

[0033] A kind of high-purity metal vanadium powder, this metal vanadium powder comprises following components and content (weight):

[0034] (1) Composition: Fe content: 0.016%, Si content: ≤0.01%, Cr content: 0.018%, Al content: ≤0.01%, O content: ≤0.023%, V content: balance, (weight percentage);

[0035] (2) Particle size: -60 mesh (standard mesh number).

[0036] The preparation process of the high-purity metal vanadium powder comprises the following steps:

[0037] (1) Electrode rod preparation: the metal vanadium prepared by the molten salt electrolysis method is prepared by vacuum electron beam melting into a metal vanadium round rod with a diameter of φ75mm, and is machined into an electrode rod with a diameter of φ70mm×1000mm;

[0038] (2) Electrode rod loading: the electrode rod is loaded into the atomization chamber of the atomization device through the mechanical shaft, the electrode rod extends into the atomization chamber, and the length of the electrode rod risi...

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Abstract

The invention relates to a high-purity metal vanadium powder and a preparation method thereof. The method comprises the following steps that metal vanadium is prepared and machined into an electrode rod, the electrode rod is installed in an atomization device for atomization preparation, and screening and grading are carried out to obtain the high-purity metal vanadium powder with the particle size of less than or equal to 60 meshes. The V content of the high-purity metal vanadium powder is greater than or equal to 99.9%, the Fe content is less than or equal to 0.02%, the Si content is less than or equal to 0.01%, the Cr content is less than or equal to 0.03%, the Al content is less than or equal to 0.01%, and the O content is less than or equal to 0.03% (weight percent). The method is simple in preparation process, low in product impurity element content, low in gas element content, stable in comprehensive performance, high in material utilization rate, high in production efficiency and good in effect and easily realizes large-scale production.

Description

technical field [0001] The invention belongs to the technical field of special alloy smelting and atomization pulverization, and specifically relates to a high-purity metal vanadium powder and a preparation method thereof. Background technique [0002] Vanadium is an important alloying element. Vanadium-containing steel has excellent properties such as high strength, high toughness, and good wear resistance. It is widely used in industries such as automobiles, shipbuilding, railways, aviation, bridges, electronic technology, and national defense industries. Its consumption accounts for about 85% of vanadium consumption. Because vanadium in titanium alloy can stabilize titanium β phase and improve alloy strength, vanadium-containing titanium alloy has good ductility and plasticity, and the amount of vanadium used in the production of titanium alloy required by the aerospace industry accounts for about 10% of vanadium consumption. In addition, vanadium battery is a redox batt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F9/14B22F9/10B22F1/00C22C27/02
CPCB22F1/0003B22F9/14B22F9/10C22C27/025
Inventor 李增德李卿解浩峰彭丽军杨振黄树晖张习敏
Owner GRIMAT ENG INST CO LTD
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