Design and implementation of an intelligent system to detect quality state of temperature defects in hot rolled strips: At Siderúrgica del Orinoco "Alfredo Maneiro"

Abstract

This work show the design and implementation of an on-line intelligent system to determine the quality status of temperature defects in the hot rolled strips manufactured by SIDOR. The proposed system is based on a combination of expert systems, the standard automation platform of the company, and signal processing techniques. The rules of the expert system were proposed by quality assurance experts, who hold a huge expertise identifying temperature defects in the hot rolled strips, which indirectly determine the mechanical properties of the material. The entire architecture of the system was designed according to software engineering practices. The results shows the system is successful identifying and applying the quality status of each strip manufactured by the mill, with an initial performance of 34.5% of retained coils, and 12% of released coils.