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Information × Registration Number 0224U033252, (0122U000617) , R & D reports Title Investigation of crystallization of alloys using temperature-kinetic and MHD effect on cast metal billets popup.stage_title Дослідження процесів кристалізації та охолодження металу, прогнозування структурного стану та можливих ліквацій у безперервнолитих заготівках в умовах зовнішніх фізичних температурно-кінетичних дій у передкристалізаційний період та під час їх тверднення Head Smirnov Oleksii M., Доктор технічних наук Registration Date 23-12-2024 Organization Physico-technological institute of metals and alloys National academy of Sciences of Ukraine popup.description1 Obtaining recommendations for correcting the parameters of the casting technology, which ensures the achievement of improved quality indicators for continuously cast products, as well as reducing metal losses associated with violation of the nominal casting conditions due to suspension of the billet in the mold. popup.description2 The forming of cast ingot in the CCM mold have been studied. It is shown that the growth rate in the corners of the ingot is approximately in 1.5-2.0 times higher than growth rate of the hard crust thickness along the side surface. It is established that the way and value of possible deformation of hard crust is inversely proportional to its thickness. The hard crust is able to withstand a compression of 37-40% of its thickness. For the first time, it is defined experimentally the direct influence of the frequency of reciprocating shaking of the CCM mold on arising of standing waves on a surface of liquid metal bath. It is determined that for a fixed mass casting rate, there is a range of liquid metal pressure at pouring, which provides optimal dimensions of liquid metal bath and appropriate heat removal conditions. It was investigated the influence of the ingot cooling intensity in the secondary cooling zone on solidification of continuously cast ingot. The critical stresses and deformations were estimated for the effective soft mechanical reduction of ingot in the final zone of the CCM. For the first time, there were methodologically substantiated the criterial parameters, and, for the parameter "Penetration of deformation into internal layers of ingot", the complicated experimental study was performed. It is formulated the unified complex approach to designing the technological support for quality control of rolled metal products. It is studied the effect of processing of solidifying metal by alternating electromagnetic fields that generate vibration in the melt. The most rational modes have the processing time about 60-70% of the total time for complete crystallization (intermittent mode). Product Description popup.authors Narivskyi Anatolii V. Semenko Anastasiia Yu. Skorobahatko Yuliia P. Smirnov Oleksii M. Tarasevych Mykola I. popup.nrat_date 2024-12-23 Close