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Powder Flow Testing with the FT4 Powder Rheometer

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As we have seen in previous sections, powder flow properties are complex and cannot be quantified by a single number. Flowability must be considered in relation to the conditions imposed by the process and application. Powders may exhibit “good” flow if loosely packed, but “bad” flow after consolidation. Some powders may flow well as long as flow rates are relatively high, however they may stop flowing when moved more slowly.

 

The FT4 has been designed to allow the effect of each of these External Variables to be investigated. By closely simulating process conditions in the measurement cell, the powder’s response to each variable can be quantified.

 

External variables include: -

The Need For Versatility

  • Consolidation
  • Aeration
  • Flow (Shear) Rate
  • Moisture
  • Electrostatic Charge
  • Storage Time

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