Ensuring the quality and reliability of power equipment components during their production and testing as part of a prototype

Abstract

The object of study is the power equipment of thermal power plants. When developing new parts and components of power equipment, a problem arises of ensuring the quality and reliability at the stage of their putting into production and in the process of serial production. To solve this problem, the following tasks have been set: to develop ways and methods to ensure the quality and reliability of the development batch of equipment; to determine the scope of running-in tests of components as part of a prototype during serial production; to show the influence of production factors on the quality and reliability of the output product; to determine the nomenclature of production quality parameters and their impact on the manufacturability and reliability of products. The scientific novelty consists in generalization of methods, ways, mathematical models for ensuring the quality and reliability of newly created similar products. The theoretical approaches, which are proposed in the article, can be aimed at creation of state-of-art conditions for manufacturing of parts, structures and components of power equipment with new process and material characteristics in terms of reliability. The practical significance is determined by implementation of the developed methods, ways, mathematical models in the normative and technical documentation of newly created equipment. A procedure is described for holding running-in and acceptance tests. The factors, which affect the quality and reliability of components of power equipment of thermal power plants, are considered. Various groups of parameters for assessment of the quality of output products have been described. Equations are presented for calculation of manufacturability parameters, in particular, for labor-intensity, material consumption, material utilization rate, production prime cost, as well as for standardization and unification parameters. Methods are considered for determination of the product quality parameters.