«MMK-METIZ» - Open Joint Stock Company «Magnitogorsk Hardware and Sizing Plant» (Russia):

V.N. Lebedev

Magnitogorsk State Technical University named after G.I Nosov (Russia):

M.V. Chukin,  m.chukin@mail.ru

G.S. Gun

A.G. Korchunov

M.A. Polyakova

Experts from «MMK-METIZ” and scientists from Magnitogorsk State Technical University developed co-joint project for creation high-technology manufacture of high-tensile reinforced rod with diam. 9.6 mm for concrete sleepers which are used in highways. This project was approved by the Ministry of Education of Russian Federation. The main idea of this project is to form nano-patterned conditions for manufacture of high-carbon steel in long workpieces. It will allow to raise significantly operating capabilities of metal products which includes high-tensile reinforced rod with diam. 9.6 mm for concrete sleepers of new generation.

Тhereby, realization of above-mentioned approaches provides achievement of high-tensile reinforcement state at the expense of reinforcement material ultrafine-grained and forming of nano-structure based on influence of complex thermal diffusion on carbon steels using of highly productive units of thermal and deformation treatment (table 4). Combination of these treatment methods opens up high technological possibilities for enhancement of strength and special reinforcement properties keeping their high uniformity without steel alloying. This technology is less sensitive to quality of semi-finished rolled products.

The established high-technology production of high-tensile reinforced rods and wire with diameter of 9.6 mm for reinforcing of concrete sleepers for modern highways possesses the necessary characteristics of innovation technology. It’s the first time of complex usage of modern scientific intensive thermal deformation methods for making influence on carbon steel structure with forming nanostructured state. Commercialization of the results of this innovative theoretical and practical project will enable to establish scientific intensive production of reinforcement for concrete sleepers of new generation for the first time in the conditions of Russian hardware metallurgical plant.

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2. Lebedev V. N. Experience of high-tensile stabilized reinforcement for concrete sleepers of new generation production application. Bulletin of Magnitogorsk State Technical University named after G. I. Nosov. 2010. № 2. p. 74-76.

3. Saro D., Bitkov V. V. Producing technology of cold-rolled wire for ferro-concrete constructions reinforcing. Stal (Steel). 1994. № 8. p. 15 – 18.

4. Production of reinforcing wire by cold rolling. Hardware. 2005. № 1. p. 18 - 24.

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