Qualification method for quality assessment of metallurgical facilities

Nosov Magnitogorsk State Technical University, Magnitogorsk, Russia The article proposes a qualimetric method for assessing the quality of such hazardous production facilities of a metallurgical enterprise as special bridge metallurgical cranes. The supporting structure of the crane is investigated, structurally divided into four main groups of structures and fifteen elements, which carry all the information about the dominant properties of the operation of the crane. Two indicators of the quality of the crane structure were introduced: complex and integral. For a complex function, the probability density function of the reliability levels of structural elements in the form of a uniform law is taken. For integral - an indicator of the risk of an accident, since most of the cranes under consideration are operated outside the warranty period. The obtained quantitative data on the reliability levels that structural elements should have is valuable. The investigated qualimetric method will allow experts to make the right scientific and technical decisions and, ultimately, will bring a significant economic effect that can be comparable to the price of a new crane and its commissioning. Special cranes of the Magnitogorsk Metallurgical Combine were considered. The article continues to develop studies of qualimetric science for assessing the quality of products and various objects of a metallurgical enterprise of the scientific school of the Magnitogorsk State Technical University named after G.I. Nosov.