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Journal articles on the topic 'Strip rolling'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Jiao, Zhi Jie, Jian Ping Li, and Jie Sun. "A Pilot Rolling Mill Designed for High Strength Steels." Materials Science Forum 654-656 (June 2010): 210–13. http://dx.doi.org/10.4028/www.scientific.net/msf.654-656.210.

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High strength steels, such as austenitic stainless steel, Transformation Induced Plasticity (TRIP) steel and silicon steel, have significant work hardening during cold rolling, which in turn induces a quickly increased rolling force. Tension plays a very important role in the reduction of the rolling force. However, coiler tension control system used in the classic experimental rolling mill requires long-scale strip, which cannot be satisfied for most experimental cases. To overcome this drawback, a new pilot rolling mill has been developed. The horizontally located hydraulic cylinders and cla

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2

Elsner, A., Radko Kaspar, Dirk Ponge, Dierk Raabe, and Sybrand van der Zwaag. "Recrystallisation Texture of Cold Rolled and Annealed IF Steel Produced from Ferritic Rolled Hot Strip." Materials Science Forum 467-470 (October 2004): 257–62. http://dx.doi.org/10.4028/www.scientific.net/msf.467-470.257.

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The ferritic rolling strategy allows for the production of two different hot strip grades, a "soft" and a "hard" hot strip. The "soft" hot strip is rolled in the upper ferrite region and a sufficiently high coiling temperature ensures direct recrystallisation in the coil. The "hard" hot strip is rolled at relatively lower temperatures in the ferrite temperature region and exhibits a strained microstructure with a desirable rolling texture. Furthermore, these ferritic rolled hot strips can be used as initial strip for subsequent cold rolling. The current investigation focuses on the development

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3

Daamen, Markus, Daniel Dávalos Julca, and Gerhard Hirt. "Tailored Strips by Welding, Strip Profile Rolling and Twin Roll Casting." Advanced Materials Research 907 (April 2014): 29–39. http://dx.doi.org/10.4028/www.scientific.net/amr.907.29.

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Conventional strips can be converted into tailored strips by further processing such as rolling and welding. Tailored strips have a thickness or thickness distribution which is designed according to the expected loads. A new approach for the production of tailored strips is the twin roll casting of profiled strips. This technology combines the advantages of direct strip casting and the production of steel strip with an optimized cross section. In this paper the achievable process limits regarding the geometry of tailored strips with varying thickness in the cross section made by strip profile

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4

Yu, Yong Mei, Yun Bo Xu, Yuan Xiang Zhang, Ting Zhang, Xiao Ming Zhang, and Guo Dong Wang. "Structure and Precipitation of Strip As-Cast and Hot-Rolled by TSCR on Oriented Silicon Steel." Materials Science Forum 686 (June 2011): 506–10. http://dx.doi.org/10.4028/www.scientific.net/msf.686.506.

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The simulation studies were carried out on the oriented silicon steel produced by thin slab casting and rolling (TSCR) and twin-roll strip casting in the laboratory. The precipitation of inhibiter, formation of microstructure and texture were investigated before cold rolling. The inhomogeneous microstructure and texture gradient were observed in the 7-pass hot-rolled strip（2mm）for TSCR process, and texture gradient was not changed after normalizing, and the twin-roll strip casting directly supplied a strip with approx 2mm of thickness being same as that of hot-rolled strip by TSCR. The microst

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5

Podobedov, N. I., V. V. Verenev, and V. V. Korennoi. "The evaluation of effectiveness of the device "Coilbox" on the mill 1680." Fundamental and applied problems of ferrous metallurgy, no. 32 (2018): 300–308. http://dx.doi.org/10.52150/2522-9117-2018-32-300-308.

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The aim of the work is to conduct a comparative analysis of the results of rolling hot-rolled strips in the finishing group of mill stands of 1680 strips with and without the use of an intermediate rewinding device (PUF). A comparative analysis of the results of measurements of the moment and longitudinal thickness during rolling in the finishing group of stands is given. Given the distribution of torque in the cages along the length of the strip. It is shown that the mean square deviation of the moment is noticeably less than the rolling time without PUF. The level of dynamic loads and the dy

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6

Zhao, Yan Feng, Dian Hua Zhang, Yun Bo Xu, Xiao Ying Hou, and Guo Dong Wang. "A Method of Establishing Temperature Schedule during ASP Hot Strip Rolling." Materials Science Forum 704-705 (December 2011): 1298–303. http://dx.doi.org/10.4028/www.scientific.net/msf.704-705.1298.

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Based on the actual production data of ASP (Angang Strip Production) hot strip rolling line, mechanical properties of thin gauge X70 pipeline steel were simulated by BP neural network method. Recursive functions were used to verify the mechanical properties which calculated by BP neural network. Based on predicted mechanical properties with high precision, BP neural network and Genetic Algorithm (GA) were combined to establish the temperature schedule of X70 pipeline steel during ASP hot strip rolling. It is shown that there are four important temperatures during ASP hot strip rolling, such as

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7

Haga, Toshio, Hiroshi Tsuge, Shinji Kumai, and Hisaki Watari. "A Roll Caster to Cast Clad Strip." Key Engineering Materials 554-557 (June 2013): 1902–9. http://dx.doi.org/10.4028/www.scientific.net/kem.554-557.1902.

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A tandem-type roll caster that can cast a three-layered clad strip was developed by mounting one twin roll caster on another twin roll caster. In this caster, the base strip is cast by the upper twin roll caster, and the overlay strips are cast by the lower caster. The three strips are metallurgically bonded by the lower caster. This study investigated three aspects of this caster. First, the clad ratio could be controlled by the solidification lengths of strips from the upper and lower twin roll casters, and a clad ratio of 1:8:1 was attained. Second, although it is known that fabrication of

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8

Li, Hongbo, Zhenwei Zhao, Dawei Dong, et al. "Edge-Drop Control Behavior for Silicon Strip Cold Rolling with a Sendzimir Mill." Metals 8, no. 10 (2018): 783. http://dx.doi.org/10.3390/met8100783.

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Edge-drop control is important for silicon strip cold rolling, as the silicon strip is mainly used as a laminated core. Moreover, cold rolling is the key process for the thin strip edge-drop control, and a Sendzimir mill is one of the most popular cold rolling mills for silicon strips. Thus, the mastery of edge-drop control behavior for silicon strip cold rolling with a Sendzimir mill is beneficial for the improvement of the strip profile quality. With the finite element method, two models are built to analyze the edge-drop control behavior, one is the roll system and strip integrated elastic-

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9

Rusnák, Ján, Peter Malega, Jozef Svetlík, Vladimír Rudy, and Norbert Šmajda. "The Research of the Rolling Speed Influence on the Mechanism of Strip Breaks in the Steel Rolling Process." Materials 13, no. 16 (2020): 3509. http://dx.doi.org/10.3390/ma13163509.

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This paper evaluates the results of research aimed at changing the rolling speed and the effect of foreign particles in the steel strip, as well as the forces in the rolling process. It also compares the correlation of lab results, theoretical expectations and real-life observations. It supplements the already existing practices aimed at strip-break elimination that were developed and implemented worldwide. Records from a five-stand tandem mill were used for the data analysis. The historical databases developed based on incidents (strip breaks) since 2013 were used; the detailed position of ea

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10

XIE, H. B., Z. Y. JIANG, A. K. TIEU, X. H. LIU, and G. D. WANG. "PREDICTION OF ROLLING FORCE USING AN ADAPTIVE NEURAL NETWORK MODEL DURING COLD ROLLING OF THIN STRIP." International Journal of Modern Physics B 22, no. 31n32 (2008): 5723–27. http://dx.doi.org/10.1142/s0217979208051078.

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Customers for cold rolled strip products expect the good flatness and surface finish, consistent metallurgical properties and accurate strip thickness. These requirements demand accurate prediction model for rolling parameters. This paper presents a set-up optimization system developed to predict the rolling force during cold strip rolling. As the rolling force has the very nonlinear and time-varying characteristics, conventional methods with simple mathematical models and a coarse learning scheme are not sufficient to achieve a good prediction for rolling force. In this work, all the factors

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11

Wu, Kai, Xiang Rong Song, and Zi Ying Liu. "Strip Width Model in Hot Strip Rolling." Advanced Materials Research 926-930 (May 2014): 856–59. http://dx.doi.org/10.4028/www.scientific.net/amr.926-930.856.

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This paper has researched strip width model in hot strip rolling. Analyzed physical phenomena influencing strip width, established calculation model in production including width spread during flat rolling, width change induced by bending, width changed by high temperature creep and thermal expansion and contraction during rolling. Practical applications in domestic 1500 hot strip mill show that the width model achieved good effect and enhanced the calculation precision.

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12

Carretta, Yves, Andrew Hunter, Romain Boman, et al. "Ultrasonic roll bite measurements in cold rolling: Contact length and strip thickness." Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology 232, no. 2 (2017): 179–92. http://dx.doi.org/10.1177/1350650117712314.

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In cold rolling of thin metal strip, contact conditions between the work rolls and the strip are of great importance: roll deformations and their effect on strip thickness variation may lead to strip flatness defects and thickness inhomogeneity. To control the process, online process measurements are usually carried out; such as the rolling load, forward slip and strip tensions at each stand. Shape defects of the strip are usually evaluated after the last stand of a rolling mill thanks to a flatness measuring roll. However, none of these measurements is made within the roll bite itself due to

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13

Wang, Bing, Jian Lin Sun, and Yuan Yuan Wu. "Lubricating Performances of Nano Organic-Molybdenum as Additives in Water-Based Liquid during Cold Rolling." Advanced Materials Research 337 (September 2011): 550–55. http://dx.doi.org/10.4028/www.scientific.net/amr.337.550.

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The non-parathion nano organic molybdenum (Nano-Mo) was adopted to substitute for the conventional extreme-pressure and anti-wear additives, uniformly dispersed in water-based cold rolling liquid for steel strips. The tribological properties of the water-based cold rolling liquid were tested by the four-ball machine, and the lubricity of the cold-rolling liquid for steel strip was evaluated on the 4-high cold rolling experiments. Besides, the worn surfaces of the steel balls were observed by an optical microscope. Results indicated that Nano-Mo as additive in water-based cold rolling liquid, c

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14

Furumoto, Hideaki, Ryohei Kinose, Shuji Maniwa, et al. "Development of Looper Shape Meter and Verification Test Results in Hot Rolling." Advanced Materials Research 939 (May 2014): 391–99. http://dx.doi.org/10.4028/www.scientific.net/amr.939.391.

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The harder and thinner strips, such as high strength steel and so on, have been needed to be rolled. When the rolled strip becomes thinner and harder, the unstable state rolling and tail end pinching might occur and so the strip shape measurement during rolling is strongly required under the condition that tension is applied to the strip. Visual-type shape meter, which has been already used, could not measure the strip shape when tension is applied to the strip. Looper Shape Meter, hereinafter referred as LSM, has been developed which could measure the strip shape under the tension. LSM is ins

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15

He, Hainan, Jian Shao, Xiaochen Wang, Quan Yang, and Xiawei Feng. "Silicon Steel Strip Profile Control Technology for Six-High Cold Rolling Mill with Small Work Roll Radius." Metals 10, no. 3 (2020): 401. http://dx.doi.org/10.3390/met10030401.

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Due to the requirement of magnetic properties of silicon steel sheets, producing high-precision size strips is the main aim of the cold rolling industry. The tapered work roll shifting technique of the six-high cold rolling mill is effective in reducing the difference in transverse thickness of the strip edge, but the effective area is limited, especially for a high crown strip after the hot rolling process. The six-high mill with a small work roll size can produce a strip with higher strength and lower thickness under a smaller rolling load. At the same time, the profile of the strip can be s

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16

Przondziono, Joanna, and Jan Szymszal. "Steel Strips Flattening in Ball Rolling Mill." Solid State Phenomena 165 (June 2010): 153–58. http://dx.doi.org/10.4028/www.scientific.net/ssp.165.153.

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An effective and efficient production method of narrow and thin strips made of steel, non-ferrous metals and their alloys is wire flattening in a ball rolling mill. In this device cylindrical rollers have been replaced with balls of diameter ca. 15 mm. Proper selection of deformation process parameters enables to obtain strips with the required geometrical characteristics. Experimental planning method was applied to evaluate the influence of flattening process technological parameters on strip geometrical features. Statistical analysis enabled to determine mathematical models of stainless stee

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17

Jiang, Zheng Yi. "Analysis of Strip Shape in Cold Rolling of Thin Strip." Advanced Materials Research 189-193 (February 2011): 2980–85. http://dx.doi.org/10.4028/www.scientific.net/amr.189-193.2980.

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In this paper, finite element models of the strip shape during cold rolling of thin strip in both symmetrical and asymmetrical rolling cases have been successfully developed, and the effects of rolling parameters on strip shape such as the thickness distribution along the strip width have been obtained. The strip edge drop and shape are discussed under both symmetrical and asymmetrical rolling conditions. Simulation results show that the asymmetrical rolling can reduce the strip edge drop dramatically, which is useful in improving the strip shape and reducing the energy cost during cold rollin

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18

Tibar, H. B., and Zheng Yi Jiang. "Analysis of Thin Strip Shape and Profile in Cold Rolling: A Way to Improve Strip Profile and Mechanical Properties." Materials Science Forum 879 (November 2016): 849–54. http://dx.doi.org/10.4028/www.scientific.net/msf.879.849.

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Optimisation of the physical and mechanical properties of cold rolled thin strips is achieved by controlling the rolling parameters. In this paper, the factors affecting the low carbon steel thin strip profile of asymmetrical cold rolling have been studied at a speed ratio of 1.3 without lubricant applied. The effect of rolling parameters on the resulting microstructure was also investigated. It was found that under dry condition, work roll shifting and work roll cross angle can improve the strip profile, and the improvement is more significant with an increase of work roll cross angle rather

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19

Jiang, Zheng Yi, X. Z. Du, Yan Bing Du, Dong Bin Wei, and Matthew Hay. "Modeling of Strip Shape during Cold Rolling of Thin Strip." Key Engineering Materials 443 (June 2010): 9–14. http://dx.doi.org/10.4028/www.scientific.net/kem.443.9.

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Strip shape is an important factor affecting the strip quality significantly during cold rolling of thin strip. In the paper, finite element simulation models of the strip shape in cold rolling for both symmetrical and asymmetrical rolling cases were successfully developed. The strip edge drop and the effect of the rolling force on the strip shape (the thickness distribution along the strip width) have been obtained. The developed finite element model has been verified with the experimental value, which shows they are in good agreement. The obtained results are applicable to control the rolled

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20

Xu, Dong, Quan Yang, Xiaochen Wang, Hainan He, Youzhao Sun, and Wenpei Li. "An Experimental Investigation of Steel Surface Topography Transfer by Cold Rolling." Micromachines 11, no. 10 (2020): 916. http://dx.doi.org/10.3390/mi11100916.

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Automobile and household appliance panels require steel strips with extremely high-quality surfaces. Therefore, an in-depth study of the surface topography transfer of the steel strip during the rolling process is of considerable significance for improving product quality. In this study, the scale-invariant feature transform (SIFT) algorithm is used to realize the large-field stitching and the correspondence measurement of the surface topography of the roll and strip. The surface topography transfer mechanism and microconvex change law during cold rolling are revealed. Further analysis is cond

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21

Jiang, Zheng Yi, Xiao Zhong Du, Yan Bing Du, Dong Bin Wei, and Matthew Hay. "Strip Shape Analysis of Asymmetrical Cold Rolling of Thin Strip." Advanced Materials Research 97-101 (March 2010): 81–84. http://dx.doi.org/10.4028/www.scientific.net/amr.97-101.81.

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Strip shape control during cold rolling of thin strip is a challenge in rolling practice. In the paper, finite element model of strip shape during cold rolling of thin strip in asymmetrical rolling case was successfully developed, and the strip shape such as the thickness distribution along the strip width have been obtained. The developed finite element model has been verified with the experimental value, which shows they are in good agreement. The obtained results are applicable to control the rolled thin strip shape in practice.

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22

Morimoto, Toshiharu, Y. Fuyuki, A. Yanagida, and Jun Yanagimoto. "Application of Recrystallization Texture Evolution Model to Predict Plastic Formability in Steel Strips." Materials Science Forum 783-786 (May 2014): 1954–60. http://dx.doi.org/10.4028/www.scientific.net/msf.783-786.1954.

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T.M.C.P.(Thermo Mechanical Control Processing) has been widely used to improveplastic formability in steel strips. We have produced interstitial free steel(IF steel) strips and ferriticstainless-steel strips through T.M.C.P. rolling method. Optimizing conditions of hot rolling, hotrolled annealing, cold rolling and cold rolled annealing, we developed texture prediction model. Wecan predict rolling texture accurately using the conventional Taylor model. Moreover, we preciselypredict recrystallization texture classifying the total number of microscopic􀀁 slips which arecalculated using the Taylor

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23

Qiu, Zeng Shuai, An Rui He, Chao Chao Chen, Jun Ming Peng, and Xiao Yong Tang. "Research on the Influence of Hot Strip Shape to Ribbing Defect." Applied Mechanics and Materials 494-495 (February 2014): 377–82. http://dx.doi.org/10.4028/www.scientific.net/amm.494-495.377.

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Aim at solving the problem of ribbing defect is found on cold rolling strips which is caused by bad hot strip shape, analyze the reason from the hot rolling process, and study out that there are some reasons such as uneven wear of rolls can lead to ribbing defect. Roll contour, roll shifting model, rolling plan were optimized and got a geart effect: the hot strip shape being better, the production being more stable, the ratio of ribbing defect decreasing obviously (from 2.2% to 0.3%). The quality of their product has been improved a lot.

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24

Aljabri, Abdulrahman, Zheng Yi Jiang, and Dong Bin Wei. "Analysis of Thin Strip Profile during Asymmetrical Cold Rolling with Roll Crossing and Shifting Mill." Advanced Materials Research 894 (February 2014): 212–16. http://dx.doi.org/10.4028/www.scientific.net/amr.894.212.

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Strip profile control during rolling is required to assure the dimensional quality of rolled thin strip is acceptable for customers. Throughout rolling, the strip profile is controlled by using the advanced shape control rolling mill, such as the combination of work roll crossing and shifting during asymmetrical rolling, the one of the valuable methods to control the strip profile quality in rolling process. In this paper, the influences of cold rolling parameters such as the crossing angle and axial shifting value of work rolls on the strip profile are analysed. The strip shape control is dis

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25

Jiang, Zheng Yi, Hong Tao Zhu, Dong Bin Wei, and A. Kiet Tieu. "Mechanics of a Special Asymmetric Rolling of Thin Strip." Key Engineering Materials 340-341 (June 2007): 707–12. http://dx.doi.org/10.4028/www.scientific.net/kem.340-341.707.

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Asymmetric rolling is used to produce thinner strip, which can reduce rolling force significantly. When a thinner strip is rolled on a rolling mill, work roll edge may contact each other, which affects the mechanics of this special asymmetric rolling and the crown of the rolled strip. In this paper, the authors developed a numerical model to simulate this special rolling and obtained the rolling force, intermediate force, roll edge contact force, the crown of the rolled strip and the edge contact length. The effects of the initial thickness of strip and the friction variation at upper and lowe

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26

Tibar, Hasan, and Zhengyi Jiang. "Improving Thin Strip Profile Using Work Roll Cross and Work Roll Shifting Methods in Cold Strip Rolling." International Journal of Metals 2017 (January 9, 2017): 1–10. http://dx.doi.org/10.1155/2017/6489769.

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The optimization of rolling parameters in order to achieve better strip shape and to reduce rolling force is a challenge in rolling practice. In this paper, thin strip asymmetrical rolling of aluminum at various speed ratios under lubricated condition has been investigated at various combinations of work rolls cross (WRC) angles and work rolls shifting (WRS) values. The effects of strip width, reduction, and rolling speed on strip shape taking WRC and WRS into consideration are discussed. Results show that strip profile improves significantly when the WRC angle is increased from 0° to 1°, with

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27

Lu, S. S., and Y. H. Chuang. "Effects of Surface Roughness on Lubrication in Cold Rolling of Metals." Journal of Tribology 107, no. 4 (1985): 522–26. http://dx.doi.org/10.1115/1.3261123.

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Experiments were conducted on a laboratory rolling mill to assess the effects of surface roughness on lubrication in the cold rolling of thin steel and aluminum strips by measuring the forward slip, frictional power, roll force, and change in surface roughness. Adverse lubricating conditions indicated by higher forward slip and frictional power were found when a strong longitudinal directionality was present on the initial strip surface. Favorable lubricating conditions were found when the initial strip surface had strong transverse directionality because of the ease of bringing lubricant into

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28

Leysen, Frans, Jan Penning, and Yvan Houbaert. "Study of the Development of Heterogeneous Grain Size in the Through-Thickness Direction of Hot Rolled ELC Steels." Materials Science Forum 539-543 (March 2007): 4220–25. http://dx.doi.org/10.4028/www.scientific.net/msf.539-543.4220.

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The present study aims to investigate the mechanism of the development of abnormal grain sizes in the through-thickness direction of hot rolled steel strips. For this purpose, industrially prepared steel strips were further hot rolled in a laboratory hot rolling mill, setting a variety of rolling parameters. As found, the deformation rate in the hot rolling practice exerts an important role in explaining the mechanism of abnormal grain growth, especially in the close vicinity of the strip surface. Furthermore, the influence of the cooling penetration depth, induced by the roll contact was exam

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29

Kozhevnikov, A. V. "Effect of gripping conditions and strip oscillations on vibrations originating at cold rolling." Ferrous Metallurgy. Bulletin of Scientific , Technical and Economic Information 76, no. 1 (2020): 54–58. http://dx.doi.org/10.32339/0135-5910-2020-1-54-58.

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The process of continuous rolling is subjected to non-stationarity, accompanied by oscillations of not only basic technological and power parameters, but also parameters in the hearth of deformation. Non-stationarity at the rolling accounting high dynamic of the process results in origination of negative vibration effects. To prevent the vibrations originations the rolling speed is decreased, which prevents the reaching of the designing parameters of rolling mills operation. The study of influence of non-stationarity of the rolling technological process on gripping conditions and origination o

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30

Gorelova, Sofya, Madlen Ullmann, Matthias Oswald, and Rudolf Kawalla. "Effect of Different Finish-Rolling Parameters on the Microstructure and Mechanical Properties of Twin-Roll-Cast (TRC) AZ31 Strips." Key Engineering Materials 554-557 (June 2013): 274–79. http://dx.doi.org/10.4028/www.scientific.net/kem.554-557.274.

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The microstructure and the resulting mechanical properties of Twin Roll-Cast (TRC) AZ31 strips have been investigated after rolled from thickness of 5.2 mm to 1.00 mm and 1.25 mm, respectively. Twin-Roll-Casting (TRC) was used to produce AZ31 strips with a near-net final thickness directly from the liquefied material. The two-stage rolling experiments were carried out on the four high reversing mill at the Institute of Metal Forming in Freiberg. The first stage was two roughing passes followed by intermediate annealing. The second stage was subsequent finish rolling with 1 to 3 rolling passes.

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Bozhkov, A. I., D. A. Kovalev, V. S. Potapov, and R. I. Shul’gin. "METHOD FOR CALCULATION THE MODES OF STRIPS COLD ROLLING ON MULTIPLE-STAND ROLLING MILL ENSURING COST REDUCTION OF SHEET ROLLING SHOP PRODUCTION. REPORT 2. AN EXAMPLE OF THE METHOD PRACTICAL USE ON FOUR-STAND ROLLING MILL 1400." Izvestiya. Ferrous Metallurgy 62, no. 9 (2019): 667–73. http://dx.doi.org/10.17073/0368-0797-2019-9-667-673.

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The second part of the paper describes the method practical use on four-stand rolling mill 1400. When rolling the chosen typical sizes, the task was to determine the specific rolling mode, which will ensure a minimum of the total specific energy consumption at the maximum rolling speed, maximum process stabilization (minimum breaks, idle times, etc.) and obtaining the specified quality of the rolled strips (no surface defects, meeting the thickness and flatness requirements). It was achieved by including the above requirements in the constraint system with respect to the determined rolling mod

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Jiang, Zheng Yi, Xiao Wei Cheng, Xiao Zhong Du, Dong Bin Wei, and Xiao Feng He. "Modelling of Strip Shape and Profile during Cold Rolling of Ultra Thin Strip." Materials Science Forum 706-709 (January 2012): 1421–26. http://dx.doi.org/10.4028/www.scientific.net/msf.706-709.1421.

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In this paper, finite element models of the strip shape during cold rolling of ultra thin strip in both symmetrical and asymmetrical rolling cases have been successfully developed, and the strip shape such as the thickness distribution along the strip width has been obtained. The strip shape and edge drop are discussed under both symmetrical and asymmetrical rolling conditions. Simulation results show that the asymmetrical rolling can reduce strip edge drop dramatically. The work roll edge curve also affects strip shape significantly. The developed finite element model has been verified with t

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JIANG, Z. Y., D. W. WEI, and A. K. TIEU. "AN INFLUENCE FUNCTION METHOD ANALYSIS OF COLD STRIP ROLLING." International Journal of Modern Physics B 22, no. 31n32 (2008): 5728–33. http://dx.doi.org/10.1142/s021797920805108x.

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An influence function method has been developed to simulate the asymmetric cold rolling of thin strip with work roll kiss at edges. The numerical simulation model was obtained based on the deformation compatibility of the roll system in rolling and lateral directions. The strip plastic deformation has been considered in the formulation, which is significantly different from the traditional theory of metal rolling. The rolling mechanics and crown of the strip with work roll edge kiss, which are new findings for cold rolling of thin strip, are obtained. A comparison of the rolling force, roll ed

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34

Jiang, Zheng Yi, Hai Bo Xie, L. M. Yang, Hong Tao Zhu, Dong Bin Wei, and A. Kiet Tieu. "Mechanics of Asymmetric Rolling of Thin Strip with Effect of Work Roll Edge Contact." Materials Science Forum 561-565 (October 2007): 115–18. http://dx.doi.org/10.4028/www.scientific.net/msf.561-565.115.

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Asymmetric rolling of thin strip has become important due to a significant decrease of rolling force, which contributes to obtain the extremely thin strip, to reduce the rolling passes, and to save the energy by a decrease of anneal treatment. In asymmetric rolling of thin strip, edges of work rolls may contact and deform when no or small work roll bending force is applied. Work roll edge contact forms a new deformation feature. In this paper, the effects of initial thickness of strip and friction coefficient on the rolling pressure, roll edge contact length and strip crown during asymmetric r

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35

Aljabri, Abdulrahman, Zheng Yi Jiang, and Dong Bin Wei. "Finite Element Analysis of Thin Strip Profile in Asymmetric Cold Rolling Considering Work Roll Crossing and Shifting." Advanced Materials Research 1061-1062 (December 2014): 515–21. http://dx.doi.org/10.4028/www.scientific.net/amr.1061-1062.515.

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Cold rolled thin strip has received a great deal of attention through technological and theoretical progress in the rolling process, as well as from researchers who have focused on some essential parameters of strip such as its shape and profile. This paper describes the development of a 3-D finite element model of the shape of thin strip during cold rolling to simulate the cold rolling of WCS (work roll crossing and shifting) in asymmetric rolling. This finite element model considers the asymmetrical rolling parameters such as variations in the diameters of the rolls and the crossing angle as

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Nakamura, Ryoji, Masakazu Sawai, Ryoji Nakamura, H. Watari, and S. Kumai. "Casting of Clad Strip by an Unequal Diameter Twin Roll Caster." Materials Science Forum 638-642 (January 2010): 413–18. http://dx.doi.org/10.4028/www.scientific.net/msf.638-642.413.

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An unequal diameter twin roll caster which can cast clad strips was devised and assembled. The casting of the clad strip was tried, and fabrication of the clad strip was attained. This twin roll caster was planned for the process saving. The clad strip was assembled directly from AA3003 molten metal and AA4045 molten metal at speed of 20m/min. The Si-diffusion-area between the strips was very narrow, and the interface between the strips was clear. The strips were bonded firmly. The strips were not pealed by the cold rolling and the continuous bending.

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Aljabri, Abdulrahman, Zheng Yi Jiang, Dong Bin Wei, Xiao Dong Wang, and Hasan Tibar. "Thin Strip Profile Control Capability of Roll Crossing and Shifting in Cold Rolling Mill." Materials Science Forum 773-774 (November 2013): 70–78. http://dx.doi.org/10.4028/www.scientific.net/msf.773-774.70.

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Controlling cold strip profile is a difficult and significant problem has been found in industry during thin strip rolling. At present choosing the new type of strip rolling mill is the one of main methods to control the strip shape quality in cold rolling. The influences of rolling process parameters such as the work roll cross angle and work roll shifting on the strip shape and profile of thin strip are recognised throughout this study. The results show that the roll crossing and shifting is efficient way to control the strip shape. The increase of the work roll crossing angle would lead to

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Jia, Chong Lin, Qiang Fan, Ying Wang, Yong Yue Zhang, and Qun Li. "Mechanical Properties and Deformation Texture of GH536 Superalloy Strip." Materials Science Forum 747-748 (February 2013): 489–96. http://dx.doi.org/10.4028/www.scientific.net/msf.747-748.489.

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With cold rolling deformation between 12.5% and 60% for GH 536 superalloy strips, effect of deformation on the mechanical properties, texture formation and microstructure evolution have been investigated. The results show that an increase of deformation will lead to an increase of mechanical properties. As the deformation was 60%, the tensile strength and yield strength of the strip were 1430MPa and 1370MPa, respectively, and the elongation of strip was 4.5%. Also, an increase of deformation will lead to an increase of hardness, yield ratio and deformation resistance as well as an increase of

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Di, Hong Shuang, Yong Lin Li, Zhong-liang Ning, Zheng Li, Xiang Hua Liu, and Guo Dong Wang. "New Processing Technology of Twin Roll Strip Casting of AZ31B Magnesium Strip." Materials Science Forum 488-489 (July 2005): 615–18. http://dx.doi.org/10.4028/www.scientific.net/msf.488-489.615.

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In order to improve the poor workability and solve the problem of difficult roughing rolling of magnesium billet, the twin roll strip castor (TRSC) was used for the manufacture of magnesium thin strip directly from its molten metal. Since the cooling rates achieved by TRSC casting process are in the range of five hundred to several thousands of degrees per second and the strip is formed under the pressure, therefore, this near- rapid solidification process can leads to homogeneity of microstructures, refined grain size and increased solid solubility. The experiments were carried out on the exi

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Feng, Yun Li, Shuang Li, Jin Zhi Yin, and Ming Shan Du. "Effect of Normalizing on Texture and Deep-Drawing Property of 10Cr17 Ferrite Stainless Steel." Advanced Materials Research 418-420 (December 2011): 125–28. http://dx.doi.org/10.4028/www.scientific.net/amr.418-420.125.

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The microstructure, mechanical properties and texture of 10Cr17 ferritic stainless strips were researched under two processes condition, without normalizing and with normalizing in the cover-type annealing furnance before picking and rolling. The results showed that the texture {111} was strengthed and the texture {001} was weakened of cover anneal’s strip, and high value of r was obtained. Meanwhile, the crimping defect paralleling to rolling direction was uneasy appeared during stretching and the strip show good deep-drawing performance after cover normalizing.

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Li, Jian Ping, Jian Bing Hu, Da Heng Mao, and Guan Zhong Zhao. "Effects of Ultrasound on the Microstructures and Mechanical Properties of Cast-Rolling AZ31B Magnesium Alloy Strip." Materials Science Forum 686 (June 2011): 129–34. http://dx.doi.org/10.4028/www.scientific.net/msf.686.129.

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The experiment of ultrasonic cast-rolling magnesium strip was carried out on the horizontal twin-roll cast-rolling machine with the ultrasonic pole used in the solidification. The microstructures of ultrasonic and general cast-rolling magnesium strip were characterized. The results showed that the cellular dendrite of the general cast-rolling magnesium strip was coarse, the grain structure was heterogeneous and the average grain diameter was between 50μm~60μm. However, the grain structure became more homogenize after the ultrasonic treatment for cast-rolling magnesium strip, the grain was refi

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Kong, Ning, Kiet Tieu, Hong Tao Zhu, Qiang Zhu, and Peter Gandy. "Effects of Lubrication in Ferrite Rolling of Interstitial Free Steel." Materials Science Forum 773-774 (November 2013): 186–91. http://dx.doi.org/10.4028/www.scientific.net/msf.773-774.186.

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Ferrite rolling of interstitial free steel strip in the temperature range 650-850°C can effectively reduce furnace costs and scale formation as a result of lower strip reheating temperatures. Different lubrication conditions of lubricating oil, solid lubricant and dry condition were used during ferrite rolling tests of thin interstitial free steel strip on a 2-high Hille 100 experimental rolling mill. Different rolling speed, rolling temperature and reductions were applied to the rolling process. The rolling force and roll roughness were affected by the lubrication conditions and rolling param

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Bondarenko, Serhii, Olexandr Grydin, Yaroslav Frolov, Olga Kuzmina, and Oleksandr Bobukh. "COLD ROLLING OF PRE-PROFILED STRIP FROM ALUMINUM ALLOY EN AW-1050." Modern Problems of Metalurgy, no. 23 (March 27, 2020): 93–101. http://dx.doi.org/10.34185/1991-7848.2020.01.09.

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Specialists of metallurgy and mechanical engineering are intensively working at materials with controlled properties. In fact, at this stage we are already talking about the design of new materials for the specific tasks of the industry. One of the ways to achieve the regulated mechanical properties of metal products is to use the influence of plastic deformation with its different parameters in individual sections of the deformable material. In this study, we studied the effect of cold rolling on the properties of a strip of aluminum alloy EN AW-1050 with artificially created differences in t

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Nakamura, Ryoji, Shuuya Hanada, Sinji Kumi, and Hisaki Watari. "In-Line Rolling of Aluminum Alloy Strip Cast by a High Speed Twin Roll Caster." Materials Science Forum 654-656 (June 2010): 795–98. http://dx.doi.org/10.4028/www.scientific.net/msf.654-656.795.

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In-line rolling was operated on the as-cast strip cast by a vertical type high speed twin roll caster. The AA6022 and AA6111 strip was tested. The casting and rolling speed was 60m/min. Reduction was from 20% to 55%. The temperature of the rolling was within from 400oC to 450oC. The porosity and crack in the strip were improved by the in-line rolling. The in-line as rolled strip was cold rolled down to 1mm, and T4 heat treatment was operated. The microstructure of the strip, on which in-line rolling was operated, became uniform at thickness direction than the microstructure of the strip on whi

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Spyra, Marek, Marek Tkocz, and Eugeniusz Hadasik. "Estimation of Flow Stress of Zinc-Titanium Strip during Reverse Rolling." Solid State Phenomena 212 (December 2013): 67–70. http://dx.doi.org/10.4028/www.scientific.net/ssp.212.67.

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Due to some specific features (high corrosion resistance and long-life durability in particular) as well as interesting aesthetic appeal, zinc-titanium strips are widely used as roof coverings, facade panels and rain gutters. The Zn-Ti strips are manufactured either in the hot rolling lines or in the reverse rolling mills at elevated temperatures. A problem of determination the average flow stress of zinc-titanium strip in the latter mentioned technology and in the actual rolling conditions is discussed in the paper. The analysis is based on the results of plastometric compression tests, FEM s

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Zhang, Zhi Min, Feng Qin Wang, Fei Li, Shu Zhi Wang, and Xiao Jiang. "Reason Analysis and Solutions of Low Coiling Temperature at Tail of ZSAC1 Strip during U-Type Cooling." Advanced Materials Research 988 (July 2014): 290–95. http://dx.doi.org/10.4028/www.scientific.net/amr.988.290.

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Coiling temperature, finish rolling temperature and running speed of ZSAC1 strip during U-type cooling and number of valves which had been turned on were analyzed in order to find out the reason of low coiling temperature at tail of ZSAC1 strip in U-type cooling process. Results of research showed that running speed of strip and finish rolling temperature were main factors affecting accuracy of coiling temperature. Coiling temperature decreased with the increase of running speed of strip. Coiling temperature fluctuation would occur at the same part of strip when finish rolling temperature incr

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Münster, Dennis, and Gerhard Hirt. "Copper Clad Steel Strips Produced by a Modified Twin-Roll Casting Process." Metals 9, no. 11 (2019): 1156. http://dx.doi.org/10.3390/met9111156.

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Twin-roll strip casting of steel provides a resource and energy efficient way to produce thin hot strips directly from the liquid phase. Clad metals offer less costly alternatives to monolithic alloys for a wide range of applications, but their various production routes are extensive, expensive, or slow. In order to exploit the strengths of twin-roll strip casting to provide a possibly more cost and energy efficient production route for clad thin strips, research into the expansion of twin-roll strip casting process is conducted. The aim of the current research is the combination of steel with

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48

Vorobei, S. A., I. Yu Prykhodko, and V. V. Raznosilin. "Features of technological schemes and equipment for the production of thin strips on hot strip mill." Fundamental and applied problems of ferrous metallurgy, no. 34 (2020): 159–69. http://dx.doi.org/10.52150/2522-9117-2020-34-159-169.

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The purpose of the work is to determine rational schemes for their production by analyzing the technological and design parameters of a number of broadband mills that roll hot-rolled strips less than 2,0 mm thick. It is shown that at present there is a constant increase in the production of extremely thin hot-rolled strips (0,8-1,5 mm thick), which can be used instead of more expensive (by $ 20-30 per ton) cold-rolled strips. The development of the production of hot-rolled strips of such a thickness is limited by a number of problems, in particular, the low temperature of the end of rolling (7

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Jiang, Zheng Yi, Xiao Zhong Du, Yan Bing Du, Dong Bin Wei, and Xiao Feng He. "Analysis of Advanced Strip Shape during Cold Rolling of Thin Strip." Materials Science Forum 654-656 (June 2010): 206–9. http://dx.doi.org/10.4028/www.scientific.net/msf.654-656.206.

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The demand of thin gauge strip with good quality such as the strip shape and surface finish is significantly increasing. In this study, finite element model of the strip shape during cold rolling of thin strip in asymmetrical rolling was developed, and the finite element simulation of the thin strip shape has been carried out in LS-DYNA. The effects of reduction and speed ratio on the strip shape and profile and the strip edge drop have been obtained. The developed finite element model has been verified with the experimental data. The obtained results are applicable to the control of the rolle

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Hu, Wen Li, Yuan Xiang Zhang, Guo Yuan, and Guo Dong Wang. "Crack Formation Mechanism of High Silicon Steel during Twin-Roll Strip Casting." Materials Science Forum 898 (June 2017): 1276–82. http://dx.doi.org/10.4028/www.scientific.net/msf.898.1276.

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High silicon steel was fabricated by twin-roll strip casting. The cracks on the surfaces of the processed strips were obtained and analyzed by digital camera after series of surface treatment. Optical microscopy (OM) and scanning electron microscopy (SEM) were used to observe and characterize the microstructure nearby crack and fracture surface along the normal direction, respectively, and the crack formation mechanism was further analyzed in conjunction with processing parameters utilized during twin-roll strip casting process. The results indicated that morelongitudinal cracks along the roll

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