Startup of a casting-rolling complex and mastery of the production of high-quality rolled products for electric-welded pipes

Lamukhin, A. M.; Dubinin, Igor V.

doi:10.1007/s11015-010-9268-3

Cited by 7 publications

(2 citation statements)

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“…Example of determining the friction coefficient during hot rolling on the basis of processing technological data are given in [7]. The main purpose of the present work is to determine the friction coefficient during the steady-state process of hot rolling in industrial conditions of casting and rolling complex of Vyksa Steel Works (Russia) [8].…”

Section: Introductionmentioning

confidence: 99%

Determination of the friction coefficient during hot strip rolling under industrial condition using forward slip

Sevidov

Muntin

2021

METAL 2021 Conference Proeedings

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Section: Introductionmentioning

confidence: 99%

Determination of the friction coefficient during hot strip rolling under industrial condition using forward slip

Sevidov

Muntin

2021

METAL 2021 Conference Proeedings

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“…The steel coils are produced in a casting and rolling system from low-carbon low-alloy steel. Thin slabs are cast and directly rolled on a continuous broad-strip mill [8,9]. The composition of the steel is as follows: 0.05 wt % C, 0.81 wt % Mn, 0.25 wt % Si, 0.001 wt % S, 0.007 wt % P, and 0.008 wt % N. (The remainder consists of Cr, Ni, Cu, Nb, and Al.…”

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confidence: 99%

Local heat treatment of weld seams in moderate-diameter pipe produced by high-frequency current

Tkachuk¹,

Bagmet²,

Степанов³

2016

Steel Transl.

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The processes at the weld joint in local heat treatment are simulated. At heating rates typical of shop conditions, the critical points of low-carbon low-alloy steel are determined for pipe of strength class K52. Local heat treatment of such pipe welded by high-frequency current is proposed to increase the impact strength and resistance to brittle failure of the weld seam at negative temperatures.

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Features of the formation of structure and mechanical properties in rolled products of various thicknesses from low-carbon microalloyed steel produced by casting and rolling complex

Naumenko

Сметанин²,

Muntin

et al. 2021

Izv. vysš. učebn. zaved., Čern. metall.

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The article considers results of the study of microstructure parameters effect on the impact strength in temperature range from 0 to –80 °C in 20 °C increments of Charpy samples with a sharp stress concentrator and Mesnager test pieces with a circular stress concentrator from rolled coils of low-carbon microalloyed steel with various thicknesses. The used roll products were produced in conditions of JSC “Vyksa Metallurgical Plant”. The tests were performed using optical and scanning electron microscopy. It is shown that with the same chemical composition and thermomechanical treatment modes, the metal of smaller thickness (6, 8 mm) is characterized by higher strength properties (on average, by 10 MPa for temporary resistance, by 30 MPa for yield strength) and a margin for viscous properties at negative temperatures at close values of grain score and average grain size corresponding to 10 – 11 numbers according to the State standard GOST 5639. The metal with a thickness of 12 mm has the lowest level of cold resistance, and the temperature of brittle transition is minus 50 °C. Structure of rolled products of various thicknesses has a variation in grain size. Rolled metal of smaller thicknesses have a smaller grains corresponding to number 14, rolled metal of larger thicknesses has a larger grains corresponding to number 8. By conducting electron microscopic studies using the backscattered electron method, it was found that a greater number of large-angle boundaries, which are barriers for brittle cracks propagation, are observed in the 6, 8 mm thick rolled products. The constructed orientation maps of the microstructure showed the presence of pronounced deformation texture corresponding to the orientations <110>||RD (rolling direction) and (<113>...<112>)||RD for rolled products with a thickness of 6 mm.

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Startup of a casting-rolling complex and mastery of the production of high-quality rolled products for electric-welded pipes

Cited by 7 publications

References 0 publications

Determination of the friction coefficient during hot strip rolling under industrial condition using forward slip

Determination of the friction coefficient during hot strip rolling under industrial condition using forward slip

Local heat treatment of weld seams in moderate-diameter pipe produced by high-frequency current

Features of the formation of structure and mechanical properties in rolled products of various thicknesses from low-carbon microalloyed steel produced by casting and rolling complex

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