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Process classification of heat treatment
- Jun 25, 2018 -

The metal heat treatment process can be divided into three categories: integral heat treatment, surface heat treatment and chemical heat treatment. According to the different heating media, heating temperature and cooling methods, each kind can be divided into several different heat treatment processes. Different heat treatment processes are used for the same metal to obtain different tissues and thus have different properties. Steel is the most widely used metal in industry, and steel microstructure is the most complex, so there are many kinds of heat treatment technology. Integral heat treatment is a metal heat treatment process in which the workpiece is heated as a whole and then cooled at an appropriate speed to obtain the required metallographic structure to change its overall mechanical properties. There are four basic processes of annealing, normalizing, quenching and tempering in steel heat treatment.

Heat treatment is crucial part during production of paper guillotine knife, Veneer cutting knife, Metal shear blade and Shredding knife.