Prefil-Footprinter Melt Cleanliness Analyzer Manual

This document describes the Prefil-Footprinter, an on-line inclusion analyzer for molten aluminum that provides immediate filtration results and a residue sample for metallographic analysis. It explains the instrument's operation principle, which monitors the flow rate of molten metal through a micro filter to plot a weight-versus-time curve for assessing inclusion levels, and outlines a simple three-step testing procedure for process control and optimization.