Vacuum Processing Of Close Tolerance Parts

Hardening is a process in which the steel parts are heated (at a controlled rate) untill the austenitic crystal phase is attained and quickly cooled (quenched) by introducing a suitable gas. The rate of quenching is dependent on the Time-Temperature-Transformation (TTT) and Continuous Cooling Transformation CCT diagrams. An acceptable rate, for example is 28°C per minute. NATIONAL HEAT TREAT has 2 furnaces capable of processing close tolerance parts.