Optimization of hot rolling parameters of CRNO steel with the aid of hot compression test and deformation map
-
Suman Kant Thakur
,
Alok Kumar Das
Abstract
Cold-rolled non-oriented (CRNO) electrical steels find a wide variety of applications in the core of electrical machines due to low core loss and high magnetic permeability. Stringent market conditions not only require CRNO steel with superior magnetic properties but also demand excellent surface conditions. CRNO steel is cold rolled to 0.5 mm in reversing mill. High hot rolled input thickness (>2.6 mm) increases the number of passes during cold rolling and adversely affects the mill productivity. It also results in surface defects such as buckling and coil break. The flow stress of this steel varies differently compared to conventional rolled steel. Thus, it becomes difficult to optimize the reduction schedule and hence safe hot rolling practice is adopted to restrict roll force within permissible limit resulting in higher thickness. A hot compression test was carried out in a Gleeble–3500 to evaluate the flow stress behaviour of this steel and a deformation map was developed to optimize the hot rolling window. The input from the hot compression test and deformation map was used to develop a mill setup model to accurately predict the roll force and optimize the reduction schedule of CRNO steel in the finishing stands of HSM. The final thickness of hot-rolled coils during industrial trials with an optimized reduction schedule was found to be in the range of 2.4–2.6 mm compared to 2.7–3.0 mm during conventional rolling. These coils were further cold rolled and finished in 4–5 passes compared to 6–7 passes with conventional rolling. Reduction in the number of passes has resulted in increased productivity during cold rolling as well as improved surface finish.
Acknowledgment
The authors are grateful to the management of the R&D Centre for Iron & Steel, Steel Authority of India Ltd., Ranchi for their continued patronage during the execution of the present work.
-
Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
-
Research funding: None declared.
-
Conflict of interest statement: The authors declare no conflicts of interest regarding this article.
References
1. Dao-Chun, H., Lei, W., Hai-Boo, L. Adv. Mech. Eng. 2019, 11, 1–12. https://doi.org/10.1177/1687814019845773.Search in Google Scholar
2. Sengupta, P. P., Rath, S., Kumar, V. Proc.; AISTech: Indianapolis, USA, 2007; pp. 489–493.Search in Google Scholar
3. Calvillo, P. R., Colás, R., Houbaert, Y. Adv. Mater. Res. 2007, 907, 708–713. https://doi.org/10.4028/www.scientific.net/AMR.15–17.708.10.4028/0-87849-429-4.708Search in Google Scholar
4. Zhao, H., Qi, J., Su, R., Zhang, H., Chen, H., Bai, L., Wang, C. J. Mater. Res. Technol. 2020, 9, 2856–2869. https://doi.org/10.1016/j.jmrt.2020.01.020.Search in Google Scholar
5. Li, N., Kingkam, W., Han, R., Huang, Y., Li, Y., Zhu, Y., Bao, Z., Zhang, H., Zhao, C. Mater. Res. Express 2020, 6, 1–8. https://doi.org/10.1088/2053-1591/ab9b14.Search in Google Scholar
6. Prasad, Y., Seshacharyulu, T. Int. Mater. Rev. 1998, 43, 243–258. https://doi.org/10.1179/imr.1998.43.6.243.Search in Google Scholar
7. du Bos, M. L., Balabdaoui, F., Heidenreich, J. N. Comput. Mater. Sci. 2020, 178, 109629. https://doi.org/10.1016/j.commatsci.2020.109629.Search in Google Scholar
8. Lee, S., Shin, S., Hwang, B. Metals 2021, 11, 1314. https://doi.org/10.3390/met11081314.Search in Google Scholar
9. Rath, S., Talukdar, P., Singh, A. P. Am. J. Neural Network Appl. 2017, 3, 36–39.10.11648/j.ajnna.20170303.12Search in Google Scholar
10. Sims, R. B. Proc. Inst. Mech. Eng. 1954, 168, 191–200. https://doi.org/10.1243/PIME_PROC_1954_168_023_02.Search in Google Scholar
© 2023 Walter de Gruyter GmbH, Berlin/Boston
Articles in the same Issue
- Frontmatter
- Editorial
- Editorial ICPCM 2021
- Original Papers
- Developing easy-to-use, cost-effective wound dressing material by coating commercial cotton bandages with nanomaterials
- Temperature and magnetic field controlled dielectric relaxation and magnetodielectric response in KBiFe1.9Co0.1O5 polycrystalline
- Influence of thermo-mechanical treatment in austenitic and ferritic field condition on microstructural and mechanical properties of reduced activation ferritic-martensitic steel
- Effect of nanoparticle on mechanical properties of activated tungsten gas welding of austenite stainless steel 316L and optimization of process parameters
- Flexural behavior of carbon/glass inter-ply hybrid FRP composites under elevated temperature environments
- Surfactant assisted single step electrodeposition of CuInSe2 thin films with rich indium selenide surface over layer
- Optimization of hot rolling parameters of CRNO steel with the aid of hot compression test and deformation map
- Reduced graphene oxide synthesis by dry planetary ball milling followed by arc plasma treatment of high pure graphite
- Influence of interphase characteristics on the elastic modulus of unidirectional glass-reinforced epoxy composites: a computational micromechanics study
- Investigation of dielectric, impedance, and magnetodielectric behavior in Bi5Ti3FeO15–Bi2Fe4O9 composites prepared by sol–gel modified method
- Effect of spheroidization annealing on low cycle fatigue (LCF) characteristics of cold forged steel components
- Growth of CuO nanoparticles using one step chemical bath deposition under microwave heating and their characterizations
- Phase formation and electrical properties study of PVDF thick films synthesized by solution casting method
- Generation of microchannels on PMMA using an in-house fabricated μ-ECDM system
- Temperature dependent constitutive plastic flow behaviour of titanium alloy Ti6Al4V
- Production and characterization of Al–Cu binary alloy produced by using novel continuous casting process
- Synthesis of Al–Sn alloys by direct chill casting under the effect of mechanical stirring: an experimental and simulation optimization study
- Evaluation of characteristics for microwave-assisted polymer coating of the steel substrate
- Synthesis and fabrication of acrylic acid treated rattan fiber epoxy composite
- Development of superhydrophobic hybrid silica-cellulose aerogel as promising thermal insulation and sound absorption
- Effect of thermal annealing on structure and magnetic properties in a Ni–Cr multilayer
- Effect of heat input on corrosion behavior of automotive zinc-coated steel joint
- Development of Al–SiC–TiO2 hybrid composite using powder metallurgy route and the influence of TiO2 content variation on microstructure and mechanical properties
- News
- DGM – Deutsche Gesellschaft für Materialkunde
Articles in the same Issue
- Frontmatter
- Editorial
- Editorial ICPCM 2021
- Original Papers
- Developing easy-to-use, cost-effective wound dressing material by coating commercial cotton bandages with nanomaterials
- Temperature and magnetic field controlled dielectric relaxation and magnetodielectric response in KBiFe1.9Co0.1O5 polycrystalline
- Influence of thermo-mechanical treatment in austenitic and ferritic field condition on microstructural and mechanical properties of reduced activation ferritic-martensitic steel
- Effect of nanoparticle on mechanical properties of activated tungsten gas welding of austenite stainless steel 316L and optimization of process parameters
- Flexural behavior of carbon/glass inter-ply hybrid FRP composites under elevated temperature environments
- Surfactant assisted single step electrodeposition of CuInSe2 thin films with rich indium selenide surface over layer
- Optimization of hot rolling parameters of CRNO steel with the aid of hot compression test and deformation map
- Reduced graphene oxide synthesis by dry planetary ball milling followed by arc plasma treatment of high pure graphite
- Influence of interphase characteristics on the elastic modulus of unidirectional glass-reinforced epoxy composites: a computational micromechanics study
- Investigation of dielectric, impedance, and magnetodielectric behavior in Bi5Ti3FeO15–Bi2Fe4O9 composites prepared by sol–gel modified method
- Effect of spheroidization annealing on low cycle fatigue (LCF) characteristics of cold forged steel components
- Growth of CuO nanoparticles using one step chemical bath deposition under microwave heating and their characterizations
- Phase formation and electrical properties study of PVDF thick films synthesized by solution casting method
- Generation of microchannels on PMMA using an in-house fabricated μ-ECDM system
- Temperature dependent constitutive plastic flow behaviour of titanium alloy Ti6Al4V
- Production and characterization of Al–Cu binary alloy produced by using novel continuous casting process
- Synthesis of Al–Sn alloys by direct chill casting under the effect of mechanical stirring: an experimental and simulation optimization study
- Evaluation of characteristics for microwave-assisted polymer coating of the steel substrate
- Synthesis and fabrication of acrylic acid treated rattan fiber epoxy composite
- Development of superhydrophobic hybrid silica-cellulose aerogel as promising thermal insulation and sound absorption
- Effect of thermal annealing on structure and magnetic properties in a Ni–Cr multilayer
- Effect of heat input on corrosion behavior of automotive zinc-coated steel joint
- Development of Al–SiC–TiO2 hybrid composite using powder metallurgy route and the influence of TiO2 content variation on microstructure and mechanical properties
- News
- DGM – Deutsche Gesellschaft für Materialkunde
