Samodurova M.N., Barkov L.A., Dzhigun N.S., Latfulina Yu.S. New methods and mechanisms degassing carbon powder compositions before compacting

Abstract

This paper describes new methods of compacting of carbon powder compositions and new structures of mechanisms, which were developed by the authors of this article as inventors, ensuring removal of considerable volumes of gased and vapors from charged powder in the die and from pressed powder before a main forming operation.

Keywords

Carbon composition, method of compacting, degassing mechanism, die.

Samodurova Marina Nikolaevna – Ph.D. (Eng.), Associate Professor, Director of ERC Resource Center of Special Metallurgy, South Ural State University (National Research University), Chelyabinsk, Russia. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it..

Barkov Leonid Andreevich – D.Sc. (Eng.), Professor, Deputy Director for Research, ERC Resource Center of Special Metallurgy, South Ural State University (National Research University), Chelyabinsk, Russia. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it..

Dzhigun Nikolay Sergeevich – Postgraduate Student, ERC Resource Center of Special Metallurgy, South Ural State University (National Research University), Chelyabinsk, Russia. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it..

Latfulina Yuliya Sergeevna – Engineer, ERC Resource Center of Special Metallurgy, South Ural State University (National Research University), Chelyabinsk, Russia. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it..

1. Brunauer S. Adsorption of gases and vapors. Moscow: Foreign Literature Publishing House, 1948, 768 p.

2. Freundlich H. Colloid and capillary chemistry, 1926, 108 р.

3. Fialkov А.S. Uglegrafitovye materialy [Graphitized carbon materials]. Moscow: Energiya, 1979, 320 p.

4. Shulepov S. V. Fizika uglerodnykh materialov [Physics of car-bon materials]. Chelyabinsk: Metallurgiya, Chelyabinsk Section, 1990, 336 p.

5. Samodurova M.N., Barkov L.A., Mymrin S.A. et al. Phenomenology of powder densification of composite materials based on tungsten and carbon. Metallurg, 2013, no. 10. pp. 76–84.

6. Аntsiferov V. N., Bobrov G. V., Druzhinin L. К. et al. Poroshkovaya metallurgiya i napylennye pokrytiya [Powder metallurgy and sprayed coatings]. Moscow: Мetallurgiya, 1987, 792 p.

7. Mymrin S.A., Barkov L.A., Chaplygin B.A. et al. A method for extrusion of bars of refractory metal powders and a die for their compacting. Patent of the Russian Federation no. 2381870, IPC В22F3/02. Application 2007149830/02 dated 19.11.2007. Published on 20.02.2010. Bulletin no. 5.

8. Samodurova M.N., Ivanov V.A., Barkov L.A. A method for pressing carbon contact strips for trolley buses. Patent of the Russian Federation no. 2494835, IPC В22F3/02. Application 2012128703/02 dated 09.07.2012. Published on 10.10.2013. Bulletin no. 28.

9. Barkov L.A., Mymrin S.A., Chaplygin A.B. et al. An apparatus for molding preforms from refractory metal powders. Patent of the Russian Federation no. 2373025, IPC В22F3/02. Application 2008108606/02 dated 04.03.2008. Published on 20.11.2009. Bulletin no. 32.

10. Samodurova M.N., Ivanov V.A., Barkov L.A. et al. A die for molding powders. Useful model patent of the Russian Federation no. 121762, IPC В22F3/03. Application 2012125863/02 dated 20.06.2012. Published on 10.11.2012. Bulletin no. 31.

11. Samodurova M.N., Ivanov V.A., Barkov L.A. et al. A die for molding powders. Useful model patent of the Russian Federation no. 120591, IPC В22F3/03. Application 2012118025/02 dated 02.05.2012. Published on 27.09.2012. Bulletin no. 27.

12. Samodurova M.N., Barkov L.A., Ivanov V.A. A die for pressing powder compositions based on carbon. Useful model patent of the Russian Federation no. 137489, IPC В22F3/03. Application 2013137998 dated 13.08.2013. Published on 20.02.2014. Bulletin no. 5.

Details: Published: 10 September 2015; Last Updated: 10 September 2015; Hits: 2562