Among the existing methods of ensuring the production of goods, an important place is occupied by the input and final quality control of metal products in production. The main task of the input control is to constantly ensure the necessary level of quality, fixed in regulatory documents, by directly checking each batch of supplied metal. The use of active quality control directly during the production of goods allows to prevent and detect defects at the initial stages and during the manufacture of finished types of metal products. Control at the output of the production system has the main purpose to prevent the transfer of defective products to the consumer or to the subsequent technological phases (stages). Goal. The goals is development of methods for monitoring the parts of K-250 centrifugal compressors at various stages of production and selection of the optimal mode of heat treatment of rotor elements made of structural steel of the martensitic class of the 34KHN1MA brand. Method. The control included mechanical tests, metallographic studies of blanks and finished parts, as well as non-destructive testing for internal defects and surface quality. Results. A comprehensive input control of the macro- and microstructure, as well as the mechanical properties of blanks made of 34KHN1MA steel was carried out. A mode of improving the properties of critical parts of a centrifugal compressor made of 34KHN1MA steel by heat treatment is proposed. Control of the finished product was carried out, including mechanical tests, microstructure studies, as well as non-destructive surface quality control.
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