This may be partially off topic. Sorry if it is. A fellow service tech is having a problem with contaminated cast iron brake rotors on one of our machines. (24" dia X 2" thick). I remember in my younger days when preheating cast iron for welding, solvents, oil & other impurities would come to the surface. Does anyone know another process to rid the cast of these impurities other than heating?
- posted
19 years ago