There are three main test methods programmed into Exponent software for Powder Flow Analysis: caking, cohesion and powder flow speed dependency (PFSD), as well as variations such as cohesion measurement at four speeds.
Each test begins by default with two conditioning cycles to remove any user loading variation and to normalise the powder column after filling. Bulk density measurement has also been programmed into each of these sequences when the user chooses to use their split vessel, which sweeps the powder off the bulk down to a set line after conditioning. Additionally, the addition of a Powder Caking and Consolidation Rig allows the assessment of the sample’s caking behaviour after consolidation.
