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Information × Registration Number 0223U003892, 0122U201375 , R & D reports Title Energy-saving technologies during welding and surfacing popup.stage_title Head Shchetynin Serhii V., Доктор технічних наук Registration Date 18-07-2023 Organization State Higher Educational Institution "Azov State Technical University" popup.description2  The object of research is energy-saving technologies during welding and surfacing of metallurgical equipment parts. The purpose of the work is to increase the wear resistance of machine parts. Research method – scientific and technological aspects of surfacing and welding processes. The regularities of the effect of increasing the surfacing speed on the microdistortion of the crystal lattice, microstresses, dislocation density, welding stresses and crack resistance of the rolls have been established. With the growth of the linear energy of microdistortion of the crystal lattice, microstresses and the density of dislocations and welding stresses increase, which leads to the formation of cracks and breaks. The process of high-speed surfacing with low driving energy has been developed, which ensures a reduction in heat deposition, microdistortions of the crystal lattice, and microvoltages. density of dislocations, welding stresses, increase in crack resistance. The process of one-sided high-speed welding of pipes for gas and oil pipelines has been developed, which provides a reduction in heat input and welding voltages, an increase in the speed of welding and crystallization, a reduction of the microstructure, a decrease in the interatomic distance, an increase in interatomic bonds and the impact strength of welded joints in 2 -2.5 times. The comparison of wire electrodes with tape electrodes during copper deposition was studied. It has been established that powder strip electrodes have certain advantages and differences. The development of the composition of ceramic flux is considered, which allows to reduce costs when restoring parts of machines and structures. Product Description popup.authors Volenko Iryna V Zusin Anton M Shchetynin Serhii V. Shchetinina Vira I popup.nrat_date 2023-07-18 Close