Volgograd State Technical University (Volgograd, Russia), the Chair “Technology of Materials”:

Danenko V. F., Cand. Eng., Associate Prof.
Ponkratova G. V., Senior Lecturer
Gultsev E. O., Student

E-mail (common): omd@vstu.ru

Severstal-Metiz JSC, Volgogradsky affiliate (Volgograd, Russia), Technological Dept.:

Kushkina E. Yu., Head of the Dept.
Kubrakova T. S., Technologist Engineer of 3^rd category

Shaped wire is widely used for manufacturing of ropes with closed design. The technological basis of manufacturing of shaped wire is the choice of the form and the sizes of the original billet and intermediate sections (profile calibration). Manufacturing of coldrolled shaped profile from round billet is accompanied by large heterogeneity of deformation, connected with difference of the form of cross-sections of initial and finished products, which causes difficulties in profile calibration. This obstacle is eliminated by use of “relative compression along the line” deformation indicator in calibration instead of the “relative compression on the square” deformation indicator, meeting the conditions of equality of the number of internal defects, formed in metal volumes during the deformation process. It is shown that the choice of the individual reductions for passes has effect on resistance of rolls. It is offered to use the modified principle of equal difference of inverse wire diameters for optimal distribution of the individual reductions for passes; this method is characterized by simplicity of calculation. Calibration of shaped sections using this principle allows to balance the increasing metal pressure on the mill rolls, associated with steel hardening during rolling, by decrease of relative reduction by passes, and, thus, to increase the resistance of rolls.

1. Mamaev Yu. D., Danenko V. F. Proizvodstvo i ekspluatatsiya stalnykh kanatov : monografiya (Production and exploitation of steel ropes : monograph). Volgograd : Publishing House of Educational and Scientific Literature (Volgograd State Technical University), 2010. 212 p.
2. Shakhpazov Kh. S., Nedoviziy I. N., Orinichev V. I. et al. Proizvodstvo metizov (Production of wire products). Moscow : Metallurgiya, 1977. 392 p.
3. Mamaev Yu. D. Stal — Steel in Translation. 1995. No. 10. pp. 53–57.
4. Krasilshchikov R. B. Nagrev pri kholodnom volochenii provoloki (Heating during the clod drawing of wire). Moscow : Metallurgizdat, 1962. 88 p.
5. Avidon D. A. Byulleten nauchno-tekhnicheskoy informatsii “Chernaya metallurgiya” — Bulletin of scientific and technical information “Ferrous metallurgy”. 1992. No. 6. pp. 33–37.
6. Danenko V. F., Ponkratova G. V., Mishchuk E. P., Gultsev E. O. Kalibrovka profilya Z-obraznoy provoloki : doklad (Calibration of profile of Z-type wire : report). Sovremennye problemy i puti ikh resheniya v nauke, transporte, proizvodstve i obrazovanii ‘2013 : doklad na mezhdunarodnoy nauchno-prakticheskoy Internet-konferentsii. (18–29 iyunya 2013 goda) (Modern problems and ways of their solving in science, transport, production and education ‘2013 : report on international scientific and practical Internet-conference (June 18–29, 2013)). Proekt SWorld (Project SWorld). Available at : http://www.sworld.com.ua/index.php/ru/technical-sciences-213/metalsand-energy-213/17724-213-648 (acessed: June 27, 2013).
7. Zheltkov A. S., Savenok A. N. Stal — Steel in Translation. 1998. No. 11. pp. 46–49.
8. Grudev A. P. Teoriya prokatki (Theory of rolling). Moscow : Metallurgiya, 1988. 240 p.