To relieve internal stresses that have arisen during the production of blanks, prepare the structure for final heat treatment (hardening) of the blanks and impart the required mechanical properties to the blank material, heat treatment is carried out.
Heat treatment is carried out in shaft furnaces with automatic temperature control and recording. Heat treatment modes have been worked out for each steel grade, taking into account the specific features of electroslag remelting to obtain cast billets and obtain the required levels of mechanical properties.
The type and mode of heat treatment is set by the manufacturer depending on the required mechanical properties. Some modes of heat treatment are shown in the table.
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