| 摘要 |
FIELD: metallurgy. ^ SUBSTANCE: method is intended for upgrading mechanical and operational properties of wire of oval cross section, for example for spacer wire of fuel elements of atomic reactors made out of steel "-68ÿö" grade. The method consists in cold plastic deformation of a work-piece of round section and in obtaining wire of required size by means of drawing through a shaping die. Uniform degree of deformation along the section of wire and uniform fine-grain structure are achieved due to deformation of wire of preliminary finished sizes performed by cold rolling and with obtaining oval section of height a0=(0.91.1)aexp(/2) and width b0=(0.91.1)bexp(/2), where is specified degree of deformation, and a and b are correspondingly height and width of section of wire of finished sizes. ^ EFFECT: upgrading mechanical and operational properties of wire of oval cross section. ^ 1 tbl, 4 ex |
