Belous A. Securit of quality of working surfaces of details of centrifugal compressors with application of the integrated techniques

Research plant - the integrated technological processes of manufacture of details of centrifugal compressors which work in the conditions of heightened loadings and excited environments. A research objective - security of quality of working surfaces of details of centrifugal compressors at the expense of introduction of the integrated manufacturing techniques with application of the licensed new ways of hardening which will allow to raise industrial and operating performances of the equipment. Research methods: on the basis of a systems analysis method the examined design-engineering requirements to details of centrifugal compressors, and also existing methods of heightening of their quality; the method of the directed choice of techniques of hardening of details has allowed to define from all variety of techniques of hardening the optimal on an index of reaching of quality and the least cost price; For an estimation of quality of a blanket after hardening, depths and structures of zones of an intermediate layer it was spent the analysis of samples on an optical microscope "Neofot-2". The estimation of influence of the strengthened stratum on mechanical properties of a material of the fundamentals has been spent by a standard technique agrees GOST 7855-84 (trial a stretching), GOST 25 (fatigue test); the estimation of endurance of the strengthened stratum was spent by the car of friction СМC-2 with application of a method of artificial bases in accordance with GOST 16524-72. Theoretical and practical results: the integrated technique of security of quality of working surfaces of details of centrifugal compressors which has allowed to ensure their necessary quality with the most economic methods is developed. The new way of hardening of a blanket of details which has allowed to diminish the technological cost price of process at security of constructional parametres of quality is offered. Scientific novelty: For the first time centrifugal compressors are developed for improvement of quality of working surfaces of details the new integrated technique which powers up a new way of hardening of a blanket of details a method of electroerosive doping by a graphite electrode with the subsequent ultrasonic handling; the analytical model is developed for control in parametres of quality of blankets of details of centrifugal compressors which has allowed to solve a problem of a rational choice of technological operating modes of the equipment and a run time; on the basis of the spent experimental researches it has been established, that improvement of quality of a blanket of samples from a steel 12Н18N10Т a graphite electrode was carried out with a method of electroerosive doping thanks to formation in a blanket of strengthening connections; Has acquired the further development application of the directed choice of the integrated technique of security of necessary quality of working surfaces of details of centrifugal compressors. Introduction degree: the Integrated technique of security of quality of working surfaces of details of the compressor equipment is used at hardening of responsible details on Lebedinsky an experimental-experimental factory "Temp" (Лебедин the Sumy area), on M.V.Frunze (Sumy); in branch "Ukrgazenergoservis" Gajsinskomu control; joint-stock company "VNIIkompressormash. Use sphere: area engineering, gidro ahd ohter.