Left Image: This slab had no water for cooling. There are no stripes from improper headers.
Right Image – New headers were installed to quench slab, however, the header nozzles were not properly installed causing hot and cold stripes.
Torpedo Car Using IR to routinely inspect torpedo cars can save the mill thousands of dollars per year. Infrared detects refractory breakdown before it occurs. Identifying “hot spots” using IR also reduces the possibility of molten metal breaking through torpedo car.
Ladle Usual ladle life prediction is 35 to 40 heats before changing re-line.
With IR inspection re-lining could be extended above 40 heat limit.