Analysis of Efficiency of Roll Pass Design Options for Roughing Stands of Section Rolling Mill

2017 ◽  
Vol 265 ◽  
pp. 1136-1141
Author(s):  
D.I. Kinzin ◽  
S.A. Levandovskiy ◽  
O.N. Tulupov
Keyword(s):  
Rolling Mill ◽  
Strain Diagram ◽  
Roll Pass Design ◽  
Pass Design ◽  
Roll Pass ◽  
Contact Conditions ◽  
Section Rolling ◽  
Rolling Torque ◽  
Design Options ◽  
Roll Out

The analysis of two roll pass design options of ten roughing stands atOJSC “MMK” 370 rolling mill has been performed. The usage of a new form of the roll grooves will allow achieving higher durability of the rolls. Lesser rolls consumption will allow saving up to 800K rubles annually. More uniform load distribution by the stands will reduce the possibility of main mill lines equipment breakdowns due to the jumps of rolling torque in the most loaded non-equiaxial stands. Better contact conditions and higher billet stability at the input into equiaxial grooves will reduce the amount of metal clogging. Moreover, a changed strain diagram – with higher roll pass design efficiency factor – will increase the roll out of foundry production defects.

Development of a rational roll pass design for a rolling mill using performance criteria

2013 ◽  
Vol 2013 (1) ◽  
pp. 43-47 ◽  
Author(s):  
A. I. Vinogradov ◽  
M. A. Timofeeva ◽  
S. O. Korol’ ◽  
A. I. Traino
Keyword(s):  
Rolling Mill ◽  
Performance Criteria ◽  
Roll Pass Design ◽  
Pass Design ◽  
Roll Pass

Roll pass design and wear of the work rolls of the piercing mill of the Pilger Rolling Mill

Metallurgist ◽  
1974 ◽  
Vol 18 (8) ◽  
pp. 617-619
Author(s):  
Yu. Poyurovskii ◽  
I. G. Getiya ◽  
Ya. E. Kolesnikov ◽  
S. A. Reznikov ◽  
V. V. Ermakov ◽  
...  
Keyword(s):  
Rolling Mill ◽  
Roll Pass Design ◽  
Pass Design ◽  
Roll Pass ◽  
Piercing Mill ◽  
Work Rolls ◽  
Pilger Rolling

scholarly journals ROLL PASS DESIGN OF A BALL-ROLLING MILL. PART 2

2015 ◽  
Vol 56 (6) ◽  
pp. 16
Author(s):  
V. N. Peretyat’ko ◽  
A. S. Klimov ◽  
M. V. Filippova
Keyword(s):  
Rolling Mill ◽  
Roll Pass Design ◽  
Pass Design ◽  
Roll Pass ◽  
Ball Rolling

scholarly journals THE CONCEPT OF OPTIMAL BAR ROLL PASS DESIGN. REPORT 3. SPACE OF ROLL PASS DESIGN SCHEMES

2019 ◽  
Vol 62 (1) ◽  
pp. 15-24
Author(s):  
A. M. Mikhailenko ◽  
D. L. Shvarts
Keyword(s):  
Rolling Mill ◽  
Industrial Development ◽  
Central Element ◽  
Theoretical Data ◽  
Rolling Process ◽  
Roll Pass Design ◽  
Pass Design ◽  
Roll Pass ◽  
Bar Rolling ◽  
Information Block

Based on the system approach and on the experience accumulated at theoretical data, design and industrial development of bar rolling, the Chair “Metal Forming” of Ural Federal University develops the universal “Concept of optimum calibration”. The general ideology of roll pass design optimization is stated in article “The concept of optimal bar roll pass design. Report 1. Basic statements”. In the article “The concept of optimal bar roll pass design. Report 2. Calibers space” the structure, appointment and maintenance of the information block reflecting so-called “calibers space” are considered. According to the general concept of optimization, the following task that needs to be solved is the problem of creation of information block so-called “space of schemes of roll pass design” which will be used further as the first space of optimization. The concept “space of schemes of roll pass design of a bar-rolling mill” is considered as the space containing all possible virtual schemes of rolling of a concrete profile on the concrete rolling mill. For formation of the space of schemes of rail calibrations it is necessary to generate separate virtual schemes and to consistently fill this space with them. Thus, the space of calibrations schemes is formed of separate unique calibrations schemes. For formation of this space from separate calibers, it is offered to use the specialized algorithms which are “generators of schemes of roll pass design”. As an example, the structure of the generator prepared for creation of such space for rolling of railway rails is considered. It is revealed that all known rail calibrations can be presented in the form of essentially the same block structure which is used as the central element of the schemes generator of rail calibrations. Usage of described and similar generators in relation to rolling process of a concrete profile on the concrete rolling mill allows obtaining spaces of acceptable schemes of calibrations. Such spaces are necessary for the subsequent optimizing procedures for search of the best calibration scheme from all possible calibrations. The considered approach for creation of calibrations schemes space can be used during creation of computer-aided engineering systems and optimization of calibrations of rolling rolls.

scholarly journals Calibration of ball-rolling rollers with continuously variable pitch

2018 ◽  
pp. 58-63 ◽  
Author(s):  
V. Yu. Rubtsov ◽  
O. I. Shevchenko
Keyword(s):  
Rolling Mill ◽  
Metal Cutting ◽  
Constant Width ◽  
3D Models ◽  
Roll Pass Design ◽  
Pass Design ◽  
Roll Pass ◽  
Reduction In Force ◽  
Ball Rolling ◽  
Cutting Equipment

Presented is the state of ball rolling production, review of existing techniques for roll pass design ball-rolling today development. Possibilities of roll pass design with regard to the existing metal cutting equipment and variation of pitch parameters.  The priority is set for the use of rolling rolls with a continuously varying pitch, in comparison with rolls with discretely varying pitch. Possibility of using 5-axis milling equipment for obtaining a given profile, with several variable values, is shown. Model is developed for calculating the roll pass design for rolls with a continuously varying pitch, the save constant amounts of metall of workpiece between the rolls in every moments. Pitch change functions for roll pass design of ball rolling with a constant and variable flange width are derived, using which it is possible to determine the theoretical pitch at any rolls rotation angle. Technique for constructing a 3-D model is developed, based use on obtained curve of the 2nd order, which is the basis helical surface with a continuously varying pitch. Production of profile on a 5-axis machining center, according to the the 3D models suggest. Roll pass design was used ob the experience practical, with production example ball with a diameter of 120 mm, which were calculated from the deduced function for rolls with a constant width of the flange. He was tested in the conditions of the newly introduced ball-rolling mill of JSC "EVRAZ-NTMK". After introduction of a new roll pass design, were resived technical results: the reduction in force rolling, in contrast at use operating rolls with discretely varying pitch, by 25–30%, obtaining ball sizes that are as close to nominal values GOST standard, decreased of defects, uniformity forge along entire length of the rolls forming-part obtaining.The analytical solutions presented in this article, in combination with industrial approbation, make it possible to use a new method roll pass design rolls of a ball rolling mill with a continuously changing pitch for educational and production purposes.

Characteristics of the roll pass design for cold bending of No. 40 channels

Metallurgist ◽  
1974 ◽  
Vol 18 (8) ◽  
pp. 614-616
Author(s):  
V. A. Monid ◽  
V. S. Podyminogin ◽  
P. P. Zhemaitis ◽  
G. G. Kornilov
Keyword(s):  
Roll Pass Design ◽  
Pass Design ◽  
Roll Pass ◽  
Cold Bending

An efficient roll pass design for angle iron

Metallurgist ◽  
1974 ◽  
Vol 18 (8) ◽  
pp. 611-613 ◽  
Author(s):  
G. S. Utkin ◽  
V. I. Krainov ◽  
P. V. Vorob'ev
Keyword(s):  
Roll Pass Design ◽  
Pass Design ◽  
Roll Pass ◽  
Angle Iron ◽  
Efficient Roll

Research on Welded Pipe and Tube Pass Design Virtual Methods

2013 ◽  
Vol 690-693 ◽  
pp. 2643-2646
Author(s):  
Guo Chang Li
Keyword(s):  
Computer Aided Design ◽  
Design Method ◽  
Design System ◽  
Roll Pass Design ◽  
Pass Design ◽  
Virtual Design ◽  
Roll Pass ◽  
Welded Pipe ◽  
Aided Design ◽  
Pipe Manufacture

Welded pipe and special pipe get more and more applications; however, the difficulty of pass design method limits welded pipe manufacture. The paper discusses welded pipe roll pass design method based on CATIA, and roll CAD/CAPP computer aided design system based on AutoCAD, and gives roll virtual design methods which use roll CATIA, CAD/CAPP system.

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