Metal powder average grain size determination unit has sample compacting unit with pneumatic cylinder and electronic layer thickness sensor

摘要

A metal powder average grain size determination unit has a sample (4) compacting unit (2) with pneumatic cylinder (21) and electronic (220) sample layer thickness sensor (22) fixed to the piston and length display (29) and air pressure difference display (39) used with ASTM B330 methods to calculate the average grain size.