METHOD OF PRODUCING HIGH-STRENGTH STEEL PART Russian patent published in 2019 - IPC C21D9/00 C22C38/00 C23C2/00 

FIELD: metallurgy.

SUBSTANCE: invention describes a method of producing a high-strength steel part having the desired mechanical properties obtained using standard heat treatment, including a first standard treatment and a final standard treatment comprising at least overaging, method comprising a heat treatment step on equipment comprising at least an overaging device for which at least one operational mode can be set, final processing includes overaging, for which two parameters of final processing OAP1 and OAP2 depending on operating mode of the overaging device can be calculated, wherein the minimum OAP1 min and the maximum OAP2 max final processing parameters are determined in order to obtain the desired properties, at least one operational mode of the overaging device section is determined such that OAP1 ≥ OAP1 min and OAP2 ≤ OAP2 max, where steel part is steel part made on continuous line. Also disclosed is a method of making high-strength steel part, where steel part is a steel part, which is forged in a hot way.

EFFECT: technical result consists in production of high-strength steel sheets having improved yield strength and ultimate strength.

17 cl, 4 dwg, 1 tbl