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Solving integrative matching model of inventory in continuous casting and hot rolling processes by improved genetic algorithm

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3 Author(s)
Haitao Li ; Sch. of Mech. Eng., Univ. of Sci. & Technol., Beijing, China ; Sujian Li ; Di Wu

To solve the problem of matching slabs and coils against orders in the process of hot rolling production in steel industry, we introduce matrices in which the element indicates difference between slab material and steel required in order, and also matrices in which the element indicates difference between coil and steel required in order. A multi-objective 0-1 programming model is established. And then, an improved genetic algorithm with sub-integer encoding method and heuristic repair strategy is proposed. Finally, effectiveness of the model and algorithm is verified by simulation based on actual production data. Simulation experiments show that the proposed method could gain more scientific and reasonable matching results.

Published in:

Intelligent Control and Automation (WCICA), 2012 10th World Congress on

Date of Conference:

6-8 July 2012