ISO 18549-2:2009 describes two methods for the determination of the time (flow rate) it takes for a given quantity of a heated powder mix, based on iron or steel powders and to be used for warm compaction, to pass through a funnel with a given orifice diameter.Method A uses a funnel with an orifice of 2,5 mm and a test portion of 50 g and is, to a large extent, based on the method standardized in ISO 4490:2008. The method can only be used for powder mixes that flow freely through the 2,5 mm orifice in the heated condition.Method B uses a funnel with an orifice of 5 mm and a test portion with a size of 150 g.Both methods cover a testing temperature range of 60 °C to 180 °C and either of them can be selected after agreement between the parties involved.
Document identifier
ISO 18549-2:2009
Title
Metallic powders - Determination of apparent density and flow rate at elevated temperatures - Part 2: Determination of flow rate at elevated temperatures
ISO Category
TC 119/SC 2: Sampling and testing methods for powders (including powders for hardmetals)
Publication date
2009-04-15
International Relationship
BS ISO 18549-2:2009 * BS ISO 18549-2:2009
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