ANNEALING AND POSITIVE HEAT TREATMENT

(1) ANNEALING AND NORMALIZING OF STEEL 1. Annealing Annealing and normalizing are the preparation heat treatment processes widely used in production. For some machine parts with little stress and low performance requirements, they can also be used as final heat treatment. Isothermal annealing will cool the austenitized steel to the pearlite to form temperature isothermal heat preservation, so that the super-cooled austenite will be transformed into the pearlite and air cooled to room temperature.