The final properties of a roll
depend on the heat treatment. The Rolls are subjected
to heat treatment in special system controlled heat
treatment furnaces. Uniformity of temperature in all
the heating zones of the furnace is ensured by
special temperature controllers and the rate of
heating can be controlled to as low as 2.8 D.Celsius
per hour. The heat treatment programme comprises low
temperature cycles for tempering and stress
relieving as well as high temperature cycles for
soft annealing and spheroid sing.
