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Chinese Journal of High Pressure Physics  > 2013  >  27(1): 125-131.
JIANG Xi-Bo, GUO Song, FENG Song, PENG Jin-Hua. Measurement of Dynamic Friction Coefficient of Several Typical Pyrotechnics[J]. Chinese Journal of High Pressure Physics, 2013, 27(1): 125-131. doi: 10.11858/gywlxb.2013.01.018
Citation: JIANG Xi-Bo, GUO Song, FENG Song, PENG Jin-Hua. Measurement of Dynamic Friction Coefficient of Several Typical Pyrotechnics[J]. Chinese Journal of High Pressure Physics, 2013, 27(1): 125-131. doi: 10.11858/gywlxb.2013.01.018
shu

Measurement of Dynamic Friction Coefficient of Several Typical Pyrotechnics

doi: 10.11858/gywlxb.2013.01.018

  • School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China

  • Received Date: 02 Jul 2012
  • Rev Recd Date: 14 Dec 2012
  • Publish Date: 15 Feb 2013
    Abstract
  • Friction is important in the production and application of pyrotechnics, and the dynamic friction coefficient is a key parameter for quantitative analyzing the friction work. A new method for determining the dynamic friction coefficient is presented, which combines the physical model of MGY-1 friction device with theoretical analysis and numerical calculations. The dynamic friction coefficients of three pyrotechnic simple substances including potassium nitrate, magnesium and aluminum alloy and sulfur, and two pyrotechnic compounds are measured using this method. The results show that the dynamic friction coefficients of the pyrotechnics are range values, and the dynamic friction coefficient of potassium nitrate decreases with the addition of magnesium and aluminum alloy and sulfur. Moreover the reasons for producing above two phenomena are analyzed theoretically.

     

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