Resumo:
As in any other industry, the main objective of a steel plant is to grant client satisfaction with the product received. One of the most critical tasks in steel slab production is to fulfill the established dimensional parameters of clients’ requests, given that these semi-finished product parameters will be essential inputs in the following processing steps (as lamination, for instance) to achieve the final product. Inside this job of fulfilling dimensional requests of a steel slab, there are three concerns: thickness, length, and width. Given that the acceptable error tolerance is proportionally smaller in width context, this article will focus on this problem.
This article intent is to establish a methodology (based on a statistical approach of the production data history) capable of providing a precise analysis of the current status of the shrinkage factors used in the production of each possible steel at the factory and point out the best choices for these parameters in each context, to accomplish the necessities of continuous casting quality standards at Ternium Brazil.