Soviet Powder Metallurgy and Metal Ceramics

, Volume 6, Issue 9, pp 689–691 | Cite as

Extrusion of a viscoplastic powder mixture

  • A. I. Raichenko
Theory and Technology of the Component Formation Process


It has been established that, in the extrusion of a viscoplastic mixture through a “cylinder-confuser-cylinder” space, the relationship between the rate of flow Q and the pressure dropΔp is described by the expression: {ie691-01} where the coefficients depend on geometrical parameters and the rheological properties of the mixture, a being proportional to {ie691-02} and {ie691-03} is the yield strength andη the plastic viscosity).


Viscosity Yield Strength Geometrical Parameter Rheological Property Powder Mixture 
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Literature cited

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    A. G. Kostornov and A. I. Raichenko, Poroshkovaya Met.,12, 37 (1966).Google Scholar
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    A. I. Raichenko and A. G. Kostornov, Poroshkovaya Met.,6, 11 (1966).Google Scholar
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    N. V. Tyabin and M. A. Pudovkin, Dokl. Akad. Nauk SSSR,92, 1, 53 (1953).Google Scholar

Copyright information

© Consultants Bureau 1968

Authors and Affiliations

  • A. I. Raichenko
    • 1
  1. 1.Institute of Materials SciencesAcademy of Sciences of the UkrSSRUkrSSR

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