Standard Test Method for Volumetric Flow Rate of Metal Powders Using the Arnold Meter and Hall Flowmeter Funnel

Importancia y uso:

5.1 The volumetric flow rate is a measure of the flow characteristics of a metal powder. Measuring flow by volume compared with flow per unit mass eliminates the variable of the powder density and relates to the production practice of die filling by volume.

5.2 The ability of a powder to flow and pack is a function of interparticle friction. As the surface area increases, the amount of friction in a powder mass also increases. Consequently, the friction between particles increases, giving less efficient flow and packing.

5.3 Knowledge of the volumetric flow rate permits the part producer to estimate the number of parts that can be compacted per hour.

5.4 This test may be part of the purchase agreement between metal powder producers and powder metallurgy (PM) part producers, or it can be an internal quality control test for any company using metal powders.

Subcomité:

B09.02

Referida por:

F3184-16R23, B0213-20, F3049-14R21, B0964-23, B0213-20, F3318-18, F3213-17, F3302-18, F3607-22

Volúmen:

02.05

Número ICS:

17.120.01 (Measurement of fluid flow in general)

Palabras clave:

Arnold/Hall flow; interparticle friction; metal powders; volumetric flow rate ;