Research and analysis of technological parameters of preparing granulated alloy alresist on the basis of primary electrothermal silumine
DOI:
https://doi.org/10.30838/J.PMHTM.2413.230419.444.292Keywords:
granular piston alloy, wear resistance, processing of melt by electric current, diesel engineAbstract
The work purpose –to investigate influence of parameters of the production technology of new granulouse alloy an alrezist on technological indicators of process of a granulation. Alloy an alrezist is the high-silicon alloyed alloy Al−Si, possesses high rates of wear resistance and a low linear expansion coefficient. On these indexes alloy doesn't concede to the high-alloyed gray cast irons, having at the same time high specific strength. Research techniques: semi-industrial pilot studies of process parameters of production of granules, metallographic analysis, radiographic analysis and analytic treatment. Results of work –processing is carried out by electric current of a melt with a density of 3.5…4.5 A/m2. Data on influence of current on a microstructure of granules, lattice constants of aluminum and on fractional composition of granulouse alloy are obtained. The scientific noveltyis bound to a research of the new alloy received in the conditions of speeds of a crystallization of 103…105 grad/s. The practical value of results of researches consists in possible use of developments for production the seamless of pistons heavy-duty the diesel engines.
References
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Razrabotka sostava i tehnologii proizvodstva granulirovannyih splavov na osnove elektrotermicheskogo Al−Si splava dlya izgotovleniya armiruyuschih porshnevyih vstavok i iznosostoykih detaley forsirovannyih dizelnyih dvigateley : otchet NIR[Development of the composition and production technology of granulated alloysbased on the electrothermal Al–Si alloy for the manufacture of reinforcing piston inserts and wear-resistant parts of forced diesel engines : a research report].DMetI no. GR 790565, 2017, 98 p. (in Russian).
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