METHOD OF DEFORMATION-THERMAL TREATMENT OF LOW-ALLOYED COPPER ALLOYS

摘要

FIELD: metallurgy.;SUBSTANCE: invention relates to metallurgy, particularly, to treatment of copper alloys intended for high-speed railway transport contact network. Method of deformation-thermal treatment includes homogenization annealing at temperature 700–950 °C for 1 hour, hot rolling at temperature 400–600 °C to true degree of deformation e 0.5–2, continuous equal-channel angular pressing at room temperature to true deformation e 1–2 and drawing at room temperature to true deformation degree e2.;EFFECT: method provides high strength, electrical conductivity, heat resistance and manufacturability.;1 cl, 2 dwg, 1 tbl, 2 ex