Journal ArticleDOI
Penalty-based sequencing strategy implemented within a knowledge-based system
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TLDR
The logic used in a knowledge-based sequencing system for a hot dip coating line (HDCL) is outlined and how the original knowledge- based system logic was modified to include a penalty-based heuristic sequencing strategy that resulted in much-improved HDCL coil sequences is discussed.Abstract:
A hot dip coating line (HDCL) is used to coat steel coils with a corrosion-resistant coating. The sequencing of the coils going into a HDCL is important to ensure that the required coating quality of each coil is achieved and that production through the facility is maximised. In this paper, the logic used in a knowledge-based sequencing system for a HDCL will be outlined. Also, how the original knowledge-based system logic was modified to include a penalty-based heuristic sequencing strategy that resulted in much-improved HDCL coil sequences will be discussed. The enhanced version of this system has been in routine use since January 1994.read more
Citations
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Journal ArticleDOI
Metaheuristics for meltshop scheduling in the steel industry
P. A. Huegler,Francis J. Vasko +1 more
TL;DR: This paper discusses how an efficient domain-specific heuristic is combined with metaheuristic approaches in a prototype scheduling model that determines the allocation, sequencing, and scheduling of batches of steel at the basic oxygen steelmaking furnaces, the degassing facilities, and the ladle treatment stations.
Proceedings Article
Using multi-dimensional scaling and hierarchical clustering to improve the process in a hot-dip galvanizing line
Andrés Sanz García,Francisco Javier Martínez de Pisón Ascacíbar,Rubén Lostado Lorza,Roberto Fernandez Martinez,Julio Fernández Ceniceros +4 more
TL;DR: In this paper, a multi-dimensional scaling is used for the creation of a bidimensional coil map from the most significant parameters of the coils: chemical composition, dimensions, process's parameters, etc.
References
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Journal ArticleDOI
A Scheduling Model for LTV Steel's Cleveland Works' Twin Strand Continuous Slab Caster
Richard E. Box,Donald G. Herbe +1 more
TL;DR: In 1983, the LTV Steel Company started up a twin strand continuous slab caster to convert molten steel to solid steel slabs, which is scheduled by a minicomputer-based system that includes a heuristic algorithm that is used to select the best casting sequences daily as discussed by the authors.
A flow shop with compatibility constraints in a steelmaking plant
Wolfgang Slany,Jürgen Dorn +1 more
TL;DR: In this article, the authors present a fuzzy set-based methodology for process engineering applications where the generation of schedules is constrained by antagonistic and vague knowledge, and a preliminary schedule is generated by considering the important jobs and those that are difficult to schedule first.
Journal ArticleDOI
A multicriteria scheduling tool using a branch-and-bound algorithm
TL;DR: This paper is concerned with multicriteria scheduling problems encountered by the author in the context of steel industry management and an algorithm based on branch-and-bound techniques is described.