Optimization of the Continuous Casting Process of Hypoeutectoid Steel Grades Using Multiple Linear Regression and Genetic Programming--An Industrial Study
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- @Article{brezocnik:2021:Metals,
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author = "Miran Brezocnik and Uros Zuperl",
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title = "Optimization of the Continuous Casting Process of
Hypoeutectoid Steel Grades Using Multiple Linear
Regression and Genetic {Programming--An} Industrial
Study",
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journal = "Metals",
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year = "2021",
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volume = "11",
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number = "6",
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keywords = "genetic algorithms, genetic programming",
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ISSN = "2075-4701",
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URL = "https://www.mdpi.com/2075-4701/11/6/972",
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DOI = "doi:10.3390/met11060972",
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abstract = "Store Steel Ltd. is one of the major flat spring steel
producers in Europe. Until 2016 the company used a
three-strand continuous casting machine with 6 m
radius, when it was replaced by a completely new
two-strand continuous caster with 9 m radius. For the
comparison of the tensile strength of 41 hypoeutectoid
steel grades, we conducted 1847 tensile strength tests
during the first period of testing using the old
continuous caster, and 713 tensile strength tests
during the second period of testing using the new
continuous caster. It was found that for 11 steel
grades the tensile strength of the rolled material was
statistically significantly lower (t-test method) in
the period of using the new continuous caster, whereas
all other steel grades remained the same. To improve
the new continuous casting process, we decided to study
the process in more detail using the Multiple Linear
Regression method and the Genetic Programming approach
based on 713 items of empirical data obtained on the
new continuous casting machine. Based on the obtained
models of the new continuous casting process, we
determined the most influential parameters on the
tensile strength of a product. According to the model's
analysis, the secondary cooling at the new continuous
caster was improved with the installation of a
self-cleaning filter in 2019. After implementing this
modification, we performed an additional 794 tensile
tests during the third period of testing. It was found
out that, after installation of the self-cleaning
filter, in 6 steel grades out of 19, the tensile
strength in rolled condition improved statistically
significantly, whereas all the other steel grades
remained the same.",
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notes = "also known as \cite{met11060972}",
- }
Genetic Programming entries for
Miran Brezocnik
Uros Zuperl
Citations