Using hard-faced steel rolls and electrospark alloying of the working surface on the longitudinal rolling mills of the 140 tube-production unit

Metallurgist ◽  
1981 ◽  
Vol 25 (12) ◽  
pp. 479-481
Author(s):  
I. Z. Shifrin ◽  
M. P. Onishchenko ◽  
N. M. Pasternak ◽  
N. A. bondarchuk ◽  
V. N. Umerenkov ◽  
...  
Keyword(s):  
Production Unit ◽  
Electrospark Alloying ◽  
Tube Production ◽  
Longitudinal Rolling ◽  
Rolling Mills ◽  
Working Surface ◽  
Steel Rolls

Increasing tube accuracy on a 140 tube-production unit with longitudinal rolling mills

Metallurgist ◽  
1985 ◽  
Vol 29 (8-9) ◽  
pp. 271-274
Author(s):  
A. A. Zayats ◽  
A. V. Sobolenko ◽  
N. A. Kolomoets ◽  
M. P. Onishchenko ◽  
S. I. Ivchenkov ◽  
...  
Keyword(s):  
Production Unit ◽  
Tube Production ◽  
Longitudinal Rolling ◽  
Rolling Mills ◽  
Tube Accuracy

Improving the piercing mandrel on a tube-production unit equipped with a Pilger mill

Metallurgist ◽  
1988 ◽  
Vol 32 (1) ◽  
pp. 51-52
Author(s):  
V. V. Ermakov ◽  
�. N. Shebanits ◽  
V. N. Irkha ◽  
N. N. Ushakov ◽  
G. S. Borisenko ◽  
...  
Keyword(s):  
Production Unit ◽  
Pilger Mill ◽  
Tube Production

scholarly journals Skew Rolling of Rods from Scrap Rail Heads

Materials ◽  
2019 ◽  
Vol 12 (18) ◽  
pp. 2970 ◽  
Author(s):  
Tomczak ◽  
Pater ◽  
Bulzak
Keyword(s):  
Experimental Tests ◽  
Rolling Process ◽  
Industrial Applications ◽  
Experimental Investigations ◽  
Longitudinal Rolling ◽  
Rolling Mills ◽  
Second Stage ◽  
New Process ◽  
Skew Rolling ◽  
Theoretical Considerations

This paper presents the results of theoretical and experimental investigations of a new process of rolling rods from scrap rail heads. First, the industrial applications of scrap railway rails and methods of their recycling are discussed, and then the concept of two-stage rolling of rods from heads cut off from scrap rails is proposed. In the first stage of the process, a rail head preform was rolled in a hexagonal pass of a longitudinal rolling mill. Then in the second stage, the hexagonal bar was skew rolled into a rod in a helical roll pass. Theoretical considerations were based on finite element numerical modelling. The rolling process was simulated under 3D deformation using Forge NxT v.1.1 software developed by Transvalor Company. Calculations were carried out to determine the material flow kinematics, strength, and thermal parameters of the process and to identify the phenomena that might constrain its implementation. The numerical results were verified in experimental tests, during which preforms and rods were formed from scrap rail heads. The tests were conducted in longitudinal and skew rolling mills. The results indicate that rods can be effectively formed from scrap rail heads in just two steps. Rods obtained using the proposed method can be used as full-featured, semifinished products for the manufacture of various types of machine parts.

Improving tube quality and increasing the efficiency of rotary rolling mills in the 140-model tube-production units

Metallurgist ◽  
1984 ◽  
Vol 28 (8) ◽  
pp. 286-289
Author(s):  
V. Ya. Osadchii ◽  
I. G. Getiya ◽  
A. Yu. Belorusov ◽  
V. K. Shumilin ◽  
L. F. Maturina ◽  
...  
Keyword(s):  
Tube Production ◽  
Rolling Mills ◽  
Rotary Rolling ◽  
Tube Quality

Alleviating hazards and improving working conditions on the 140 tube-production unit

Metallurgist ◽  
1982 ◽  
Vol 26 (8) ◽  
pp. 310-311
Author(s):  
�. A. Dervoed ◽  
I. G. Getiya ◽  
V. K. Shumilin ◽  
V. P. Makarov ◽  
A. I. Zhukov
Keyword(s):  
Working Conditions ◽  
Production Unit ◽  
Tube Production

scholarly journals Method for Calculating the Shape of Rolls for Helical Rolling

2022 ◽  
Author(s):  
S. Gorbatyuk
Keyword(s):  
Calculation Method ◽  
Deformation Zone ◽  
Helical Rolling ◽  
Rolling Mills ◽  
Cad Systems ◽  
Rolling Axis ◽  
Working Surface ◽  
Relative Arrangement ◽  
Calculation Results ◽  
Intuitive Interface

Abstract. The paper is devoted to solving the problem of determining the shape of the rolls of helical rolling mills, depending on the specified profile of the deformation zone. A universal calculation method has been proposed, thanks to which it is possible to determine the shape of the working surface of a roll for all types of helical rolling mills (with mushroom-shaped, cup-shaped, barrel-shaped and disc rolls), any relative arrangement of the rolling axis and rolls axes, and various locations of the deformation zone on the rolling axis. The proposed method is implemented as a standalone exe-application with a simple intuitive interface. The application allows you to output the calculation results into txt-files, which can then be imported into CAD systems to create 3D roll models.

Study of the process of formation of tubes end sections during longitudinal rolling in grooves formed by a different number of rolls

2021 ◽  
pp. 44-48
Author(s):  
D. A. Akhmerov ◽  
◽  
A. V. Vydrin ◽  
Keyword(s):  
Wall Thickness ◽  
Stretch Ratio ◽  
External Diameter ◽  
Continuous Rolling ◽  
Elongation Ratio ◽  
Longitudinal Rolling ◽  
Rolling Mills ◽  
Advantages And Disadvantages ◽  
Hollow Billets ◽  
The Relationship

The work substantiates the relevance and highlights the degree of development of the research topic. The main advantages and disadvantages of the process of rolling hollow billets with the use of modern longitudinal rolling mills with 2 and 3 roll grooves are noted. With the help of physical and computer modeling, a study of the process of longitudinal rolling of pipes using 2 and 3 roll passes was carried out, for the formation of end sections (scrap). Established and numerically reflected the relationship between the size of the reduction of passes of a continuous rolling mill with 3-roll and 2-roll stands and the length of the end sections of the pipes. It is clear that the use of 3 rolls, forming a groove, allows to reduce the total end cut by 1.5 times, in contrast to 2 rolls. It has been determined that the main technological factors influencing the formation of the end sections are the ratio of the external diameter to the wall thickness of the strip (D/S), the reduction along the wall thickness, the elongation ratio, and the number of rolls required to form the groove. An empirical formula has been obtained for calculating the length of the end trim, which makes it possible to evaluate the influence of the number of rolls in the stand, the D/S ratio and the stretch ratio.

Improving the hard-facing of steel rolls on hot-rolling mills

Metallurgist ◽  
1987 ◽  
Vol 31 (9) ◽  
pp. 306-307
Author(s):  
V. G. Bendrik ◽  
K. K. Stepnov
Keyword(s):  
Hot Rolling ◽  
Rolling Mills ◽  
Steel Rolls

Reduction in longitudinal wall-thickness variation on tubes rolled on TPA-140 longitudinal rolling mills at the Sinarskii Pipe Plant

Metallurgist ◽  
1986 ◽  
Vol 30 (8) ◽  
pp. 293-294
Author(s):  
M. B. Bisk ◽  
A. I. Brizhan ◽  
G. A. Kaspirovich ◽  
A. I. Nechiporenko ◽  
Yu. I. Pustovoichenko ◽  
...  
Keyword(s):  
Wall Thickness ◽  
Thickness Variation ◽  
Pipe Plant ◽  
Longitudinal Rolling ◽  
Rolling Mills ◽  
Longitudinal Wall ◽  
Wall Thickness Variation

Improving tube quality on the 140 tube-production unit

Metallurgist ◽  
1980 ◽  
Vol 24 (3) ◽  
pp. 106-109
Author(s):  
V. Ya. Osadchii ◽  
V. Ya. Ostrenko ◽  
I. G. Getiya ◽  
V. B. Slavin ◽  
A. N. Kirichenko ◽  
...  
Keyword(s):  
Production Unit ◽  
Tube Production ◽  
Tube Quality
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