Influence of the Characteristic Factors Number Taken into Account on the Complex Quality Indicator in the Rolled Steel Plates Manufacture

The paper highlights and analyzes the previously understudied problem of the number of selected significant single quality indicators impact assessing of an arbitrary object on its model in the form of a comprehensive quality indicator was posed and solved. An appropriate analysis algorithm has been developed to study the parameters of the rolling process used to form a thin steel sheet. The results are consistent with the theory and practice of rolling production. The authors discovered that reducing the number of single quality indicators considered increases the sensitivity of the model to changes in the levels of direct management tools (degree of deformation and carbon equivalent), but at the same time increases the uncertainty, up to an unacceptable level, of such actions. The acquired results can be used to determine a rational list of single quality indicators for a wide range of technical, technological and/or organizational objects.