30.12.2018

# 13th issue of the journal "KB"

## SECTION ROLLING PRODUCTION

### EXPERIENCE OF USING TRAINER-SIMULATOR «METAL ROLLING IN A REVERSING ROUGHER HEAVY BAR MILL STAND» FOR TRAINING OF SPECIALISTS IN METAL DEFORMATION PROCESS

D.I. Kinzin
Abstract. The article discusses the experience of using a trainer-simulator of reversing rougher heavy bar mill stand in the process of training specialists in the field of metal forming.
Keywords: trainer-simulator, reversing rougher heavy bar mill stand, training specialists, metal forming process.

## Flat rolling production

### STATEMENT OF THE PROBLEM TO REPRODUCTION OF THE MATHEMATICAL MODEL OF CALCULATION OF THE PARAMETERS OF THE ASYMMETRIC ROLLING

A.N. Kolybanov
Abstract. The article formulated and posed the problem to reproduction of the mathematical model of calculation of the parameters of the asymmetric rolling.
Keywords: asymmetric rolling, form of hearth of deformation, kinematic parameters, contact stress, power parameters.

### ONE OF THE POSSIBLE OPTIONS TO REPRODUCTION OF THE MATHEMATICAL MODEL OF CALCULATION OF THE PARAMETERS OF THE ASYMMETRIC ROLLING

A.N. Kolybanov
Abstract. The article reviewed and implemented one of the possible program to reproduction of the mathematical model of calculation of the parameters of the asymmetric rolling.
Keywords: asymmetric rolling, form of hearth of deformation, kinematic parameters, contact stress, power parameters.

## SPECIAL SECTION ROLLING PRODUCTION

### GRINDING STEEL BALLS 5 GROUP PRODUCTION IN THE CONDITIONS OF JSC «EVRAZ-NTMK»

V.Y. Rubtsov, O.I. Shevchenko
Abstract. The results of experimental rolling and heat treatment of grinding steel balls Ø120 mm are presented with the production of the 5 group of hardness, in accordance with the declared operational requirements of the newly constructed ball rolling mill. The results show the possibility of making balls of Group 5 in the conditions of JSC EVRAZ-NTMK.
Keywords: grinding steel ball, hardness group, bulk hardenability, hardening, tempering.

## Roll-formed section production

### FORCE DISTRIBUTION AT FLANGE FORMING OF ROLL-FORMED SECTIONS WITH MULTIPLE RIGIDITY ELEMENTS

A.V. Filimonov, S.R. Dzhanaev, E.D. Kondratiev, V.I. Filimonov
Abstract. A new approach to calculate the linear force and expanding force between the rolls is proposed. The approach cumulate theoretical, finite-element and experimental methods. Some comparisons of the obtained results with those of previous authors are made. The proposed approach is obviously easier and exact.
Keywords: forming roll, roll-formed section, rigidity element, linear force, load point.