Results 221 to 230 of about 102,293 (268)
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Effective cooling of work rolls in strip rolling
Materials Science and Technology, 1988AbstractAn examination has been made of the effectiveness of roll cooling as applied to strip rolling, taking into account practical considerations such as the spray location and positioning, coolant flowrate, and rolling temperature. It is indicated by the results that, for cold rolling, the most effective cooling can be achieved by commencing spray ...
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Russian Metallurgy (Metally), 2011
A new technique is proposed to determine the specific volume work of deformation during screw rolling. Methods for determining the work of deformation in various sections of the deformation zone in a piercing mill are considered. The dependence of the work of deformation on the reduction in the deformation zone is obtained.
R. M. Golubchik +4 more
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A new technique is proposed to determine the specific volume work of deformation during screw rolling. Methods for determining the work of deformation in various sections of the deformation zone in a piercing mill are considered. The dependence of the work of deformation on the reduction in the deformation zone is obtained.
R. M. Golubchik +4 more
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Work of deformation in screw rolling
Steel in Translation, 2013A method is proposed for determining the unit work of deformation in the broaching of blanks in two-roller screw-rolling mills. A new approach is outlined for assessing the fracture risk and the structure of continuous-cast circular billet. Methods for determining the work of deformation in different sections of the deformation zone are considered. The
R. M. Golubchik +3 more
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Self-Compensating (SC) Backup and Work Rolls for Rolling Mills
Manufacturing Science and Engineering: Volume 2 — Non-Traditional Design and Layered Manufacturing; Rolling Technology; Intelligent Machine Tool Systems; Measurement and Inspection of Products and Processes; Non-Traditional Manufacturing Processes of the 1990s, 1994Abstract The continuously increasing requirements for improved quality of flat rolled products has lead to a reexamination of the design of existing and future rolling mill equipment and operating practices. One of the key points of interest for both steel producers and equipment suppliers is the design of the backup and work rolls ...
Vladimir B. Ginzburg +2 more
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Thermal-fatigue resistant work rolls for hot rolling mills
Materials Testing, 2019Abstract Cyclic temperature changes in the working layer of a roll during hot rolling cause thermal stress which leads to damage on the surface layer of the roll due to thermal fatigue. The pre-conditions of crack initiation are described.
Goryany, Vyacheslav +4 more
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Research on work roll thermal crown in cold rolling mill
AIP Conference Proceedings, 2013The factors which have influence on the work roll thermal crown in cold strip rolling are discussed. The heat transferring in three directions (radial axis and circumference) were considered for calculating the work roll thermal deformation. Therefore, it is a three dimensions unstable system for the work roll temperature calculation.
Lei Song +3 more
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Measurement of Thermal Load on Working Rolls during Hot Rolling
steel research international, 2012AbstractWork rolls in hot rolling mills are thermally and mechanically loaded; both of these loading aspects are difficult to measure. Laboratory tests can be used for the specification of the thermal load in the cooling area; however a thermal load in a roll gap is still difficult to measure. The paper describes an experimental technique developed for
Miroslav Raudensky +3 more
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Development of HOFC Work Roll Curve for Strip Rolling Mill
Advanced Materials Research, 2013The HOFC (High Order Flatness Control) work roll curve was designed using Matlab. It has great flatness control ability, for the roll diameter in the position of the 1/4 roll length can be altered with the changing of angle and index parameters. Combined with the data from a hot strip factory, the elastic deformation of the HOFC work roll was analyzed ...
Yuan Ming Liu +5 more
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A new procedure to assess the hot rolling work roll materials
Revue de Métallurgie, 2007CRM developed a new cost effective procedure to have a more accurate assessment of roll performance related to oxide formation, friction level and wear for hot rolling. The procedure consists of inserting different work roll materials in pilot work rolls to perform specific continuous pilot hot rolling campaigns with a detailed analysis.
J. Malbrancke +2 more
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Effects of rolling parameters on work-roll temperature distribution in the hot rolling of steels
The International Journal of Advanced Manufacturing Technology, 2006Temperature variations of work-rolls in the process of hot rolling of slabs were analyzed by solving heat conduction equation with time-dependent boundary conditions. The Raylieght-Ritz and the finite-element methods were employed to solve the governing equation. To improve the accuracy, the thermal relationship between rolling metal and work-rolls was
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