The first devices for preparing workpieces (bars) of refractory metal powders (tungsten and molybdenum) in the form of dismountable steel dies installed in a hydraulic press of special construction with vertical and horizontal cylinders were developed by the American firm General Electric in 1909. This article considers known and new die and device constructions for molding bars from refractory metal powders developed by scientists of Ural scientific schools.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
W. D. Coolidge, “Tungsten and method of making,” Trans. Amer. Inst. Elect. Eng., No. 29, 953 (1910).
K. J. Smithells, Tungsten Metallurgy [Russian translation], Metallurgiya, Moscow (1985).
K. Agte and I. Vacek, Tungsten and Molybdenum, Energiya, Moscow–Leningrad (1964).
A. N. Zelikman, Refractory Rare Metal Metallurgy, Metallurgiya, Moscow (1986).
W.-D. Schubert and E. Lassner, Tungsten, Int. Tungsten Industry Association, London (2009).
M. Mal’tsev, L. I. Klyachko, E. D. Doron’kin, et al., Vacuum Metallurgy of Refractory Metals and Hard Alloys, Metallurgiya, Moscow (1981).
L. A. Barkov, S. A. Mymrin, A. B. Kaplygin, et al., Patent 96042 RF, IPC B22F3/02, “Die for pressing objects from powders,” subm. 03.24.2010, publ. 07.20.2010, Byull., No. 20.
L. A. Barkov, S. A. Mymrin, and M. N. Samodurova, “Development of a die and method for compacting tungsten powder,” Metallurg, No. 1, 68–75 (2014).
L. A. Barkov, V. I. Truskovskii, S. A. Mymrin, et al., Equipment for Forming Powders and Powder Billets, Metall, Chelyabinsk (1992).
M. M. Samodurova, L. A. Barkov, and V. A. Ivanov, Metallurgy and Technology of Tungsten Powder, ITs YuUrGU, Chelyabinsk (2012).
S. A. Mymrin, L. A. Barkov, B. A. Caplygin, et al., Patent 2381870 RF, IPC B22F3/02, “Method for pressing bars of refractory metal powders and die for pressing them,” subm. 11.19.2007, publ. 03.20.2010, Byull., No. 5.
M. N. Samodurova, L. A. Barkov, and V. A. Ivanov, Molybdenum Powder Metallurgy and Technology, ITs YuUrGU, Chelyabinsk (2014).
M. N. Samodurova, L. A. Barkov, and V. A. Ivanov, “Die for pressing metal and non-metal powders: reference,” Inzh. Zh., No. 10, 40–46 (2013).
Author information
Authors and Affiliations
Corresponding author
Additional information
Translated from Metallurg, No. 10, pp. 83–87, October, 2017.
Rights and permissions
About this article
Cite this article
Barkov, L.A., Samodurova, M.N., Zakirov, R.A. et al. Device for One- and Two-Sided Molding of Refractory Metal Powders Into Electric-Arc Melting Electrode Workpieces. Metallurgist 61, 917–921 (2018). https://doi.org/10.1007/s11015-018-0587-0
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11015-018-0587-0