SYSTEM FOR OPTICALLY ANALYZING A MOLTEN METAL BATH

摘要

A system for optically analyzing a molten metal bath (4) wherein a high velocity argon gas stream (3) is passed from a lance (1) to the bath and is maintained coherent by a flame envelope (2) to provide a clear sight pathway through the argon gas stream for sighting the molten metal bath longitudinally through the argon gas stream from a remote or spaced sighting point (9).