Standard Test Method for Apparent Density of Free-Flowing Metal Powders Using the Hall Flowmeter Funnel

Importancia y uso:

5.1 This test method provides a guide for evaluation of an important physical characteristic of a powder known as the apparent density. The measured apparent density bears a relationship to the mass of powder that will fill a fixed volume die cavity. The degree of correlation between the results of this test and the performance of powders during use may vary with each particular application. Note, however, that the presence of moisture, oils, stearic acid, stearates, waxes, and the temperature of the powder mass may alter the physical characteristics of the powder.

5.2 Test Method B212, using the Hall flowmeter funnel, is the preferred method for determining the apparent density of metal powders and powder mixtures. The Carney flowmeter funnel of Test Method B417 should only be used when powder will not flow through the Hall flowmeter funnel.

Subcomité:

B09.02

Referida por:

F3382-19, F3049-14R21, B0703-21, B0873-23, F3509-25, B0417-25, B0214-22, D7481-18, D7481-18

Volúmen:

02.05

Número ICS:

77.160 (Powder metallurgy)

Palabras clave:

apparent density; Hall flowmeter funnel; metal powders;