Technology for Producing Fine Tungsten Carbide Powders-Reference-Cited by-同舟云学术

Technology for Producing Fine Tungsten Carbide Powders

Published:2021-07-06 Issue: Volume:1037 Page:111-118
ISSN:1662-9752
Container-title:Materials Science Forum
language:
Short-container-title:MSF

Author:

Kolmakov Konstantin M.¹,Zverovshchikov Alexander E.¹

Affiliation:

1. Penza State University

Abstract

The article shows the advantage of electric arc synthesis and subsequent centrifugal spraying of tungsten carbide to obtain a high-quality highly dispersed powder. A tungsten electrode (anode) is fed to the surface of a rotating graphite electrode (cathode) until an electric arc occurs between the electrodes, and the cathode is made in the form of a ring. The angular speed of rotation of the annular graphite electrode is set in accordance with the calculated ratio, which provides fine-dispersed centrifugal atomization of the molten product particles. To prevent intense evaporation of tungsten and the formation of an excessive amount of fine particles, the power of the electric arc for melting the anode is limited to a set value.As a result, the uniformity of the powder increases and the dispersion of the particles of the main fraction decreases.

Publisher

Trans Tech Publications, Ltd.

Subject

Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science

Link

https://www.scientific.net/MSF.1037.111.pdf

Reference12 articles.

1. RF patent No. 2 446 915 B22F 9/10. Vakhrushin A.Yu., Safronov B.V., Chukanov A.P., Shevchenko R.A. A method of obtaining a powder of refractory material and a device for its implementation, Publ. 10.04.2012 in BI No. 10.

2. RF patent No. 2 395 369 В22F 9/12. Method of obtaining fine powders, A.A. Lisenkov, V.T. Barchenko, V.D. Goncharov, V.D. Goncharov, S.V. Goncharov, I.G. Skachek, Publ. 07/27/2012 in BI No. 21.

3. RF patent No. 2 708 200 В22F 9/12. Chukhlantsev O.A., Chukhlantsev D.O., Yasevich V.I., Plasma-arc reactor with a consumable cathode for producing powders of metals, alloys and their chemical compounds, Publ. 5.12.2019 in BI No. 34.

4. RF patent No. 2 173 609 В22F 9/08 A method for producing powders of highly reactive metals and alloys and a device for its implementation, NF Anoshkin, AF Egorov, VT Musienko, AV Aleksandrov, Publ. September 20, 2001 in BI No. 26.

5. DL Reviznikov, VV Rusakov Heat transfer and kinetics of crystallization of melt particles during intense cooling, (Mat. Modeling, 1999, volume 11, number 2, 55–64).