Soviet Powder Metallurgy and Metal Ceramics

, Volume 4, Issue 9, pp 727–730 | Cite as

The investigation of the vibration compaction of two-component systems of spherical powders

  • V. V. Ivashchenko
  • I. P. Tartakovskii
  • T. M. Golubev
Theory and Technology of the Component Formation Process
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Summary

  1. 1.

    The process of vibration compaction of a two-component system by the method of vibration screening was investigated; it was shown that a density of up to 83% of the theoretical value is obtainable.

     
  2. 2.

    The maximum density of the two-component system depends, during the vibration compaction, on the percentage of each component and on the ratio of particle sizes. A higher density is achieved with a higher ratio of the diameter of the large particles to the diameter of small particles. In this case the system must contain more small particles.

     
  3. 3.

    There are optimum conditions for the vibration compaction of a two-component system which ensure the highest rate of screening or the greatest density. For spherical copper powders the maximum screening rate was obtained at a frequency of 50 Hz and an amplitude of 10–20μ, and the maximum density at a frequency of 50 Hz and an amplitude of 5μ.

     
  4. 4.

    Amplitudes exceeding the optimum values (with regard to density) cause at the corresponding frequency a distortion of the upper layer of the large particles and disrupt the entire process of uniform screening of the smaller particles, which leads to a reduced density of the entire system.

     

Keywords

Particle Size Compaction Small Particle Large Particle High Ratio 

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Literature cited

  1. 1.
    Collection: Investigations on Heat-Resisting Alloys [in Russian], Vol. 8, Izd. AN SSR, Moscow (1962), 103.Google Scholar
  2. 2.
    Proceedings of the 7th All-Union Scientific-Technical Conference on Powder Metallurgy, Erevan (1964).Google Scholar
  3. 3.
    V. T. Morgan Filter elements by powder metallurgy. Symposium on Powder Metallurgy (1954).Google Scholar

Copyright information

© Consultants Bureau 1966

Authors and Affiliations

  • V. V. Ivashchenko
    • 1
  • I. P. Tartakovskii
    • 1
  • T. M. Golubev
    • 1
  1. 1.Kiev Institute of TechnologyUSSR

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