November 6 teacher Tonkoglas PP held an open lesson on the subject "Materials Science and TCM" in group M22.
The topic of the lesson was heat treatment of carbon steel. As a result of the practical task, students got acquainted with the modes of annealing, normalization and hardening of steel, as well as acquired practical skills of various heat treatment operations, studied the effect of carbon content and tempering temperature, hardness of hardened steel.
