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Information × Registration Number 0215U003673, 0112U001516 , R & D reports Title Investigation of the electroslag process of melting solid and hollow ingots of heat-resistant steels and alloys for ultra supercritical parameters (700-750°С). popup.stage_title Head Medovar Lev Borisovich, Доктор технічних наук Registration Date 13-03-2015 Organization E.O.Paton Electric Welding Institute of the National of Sciences of Ukraine popup.description2 This paper summarizes the results of theoretical and experimental investigation of the use of promising new schemes and processes in manufacturing ESR solid and hollow ingots of heat-resistant steels and alloys, working in ultra supercritical (USC) parameters (700 to 7500S). An extensive analysis of published material on the topic of sources of foreign and domestic publications. Established that promising candidate alloys for use in thermal power stations operating in conditions SNK options, including turbines at temperatures of 700-750 ° C is nickel-based superalloys for such as Inconel 706, Inconel 740 and FENIХ-700. Separately considered steel alloys for turbine rotors operating in conditions SNK parameters. The modern technology furnaces and equipment for the production of heavy forging ingots solid and hollow section; Selected promising technological schemes ESR for further study. With the use of simulation ESR ingot forging solid and hollow section a quantitative assessment of the impact of restrictions ESR process parameters on the quality of steel ingots. The results of modeling of slag in the ESR superalloys - USC parameters candidates. The reduced description of laboratory equipment and automatic control ESR and collect information that have been specially designed for the production of ingots model for new technological schemes ESR. Experimentally determined energy and technological parameters ESR solid and hollow ingots model for new schemes ESR. For hollow ingots expediency remelting consumable electrodes for direct scheme instead of ESR ESR bifillar scheme that was applied over previously. For the first time in a pilot scheme under the direct ESR Furnace hollow ingot diameter of 640mm and a wall thickness of high-alloy steel 200mm macro and microstructural studies of samples from different areas of ESR ingots confirmed the expected high chemical and structural homogeneity of the cast metal pollution and lower its non-metallic inclusions. Recommendations regarding the application of scientific results in the industry. Payment by limiting standard ESR furnaces for the production of forging ingots and technical targets for the oven ESR-140 with a modern management system for production of solid and hollow ingots of heat-resistant steels and alloys, working in ultra supercritical (USC) parameters. Product Description popup.authors Саєнко Володимир Якович Стовпченко Ганна Петрівна popup.nrat_date 2020-04-02 Close