Search academic texts

Information × Registration Number 0214U000841, 0113U007309 , R & D reports Title Improvement of bases of production processes of high quality metal melt and its solidification. popup.stage_title Head Tarasiuk Leonid Ivanovich, Registration Date 29-07-2014 Organization State Higher Educational Institution "Pryazovskyi State Technical University" popup.description2 The influence of technological factors on contamination of steel non-metallic inclusions . That the minimal contamination of steel depends on the content of aluminum in its release from the converter . Application of vacuum also reduces the amount of steel nonmetallic inclusions. It is proved that the modification become silicocalcium helps change the shape and the number of non-metallic inclusions . Slightest contamination score became undeformed silicate inclusions corresponds to the ratio [Ca]tot/[Al]ox>0,5 and [Ca]tot/[S]=0,8-1,0. The above analysis of the literature on the study of heat gains to optimize nutrition bars . Outlines the main areas of development funds to reduce head trim large steel ingots . Particular attention is given to heating the head of electroslag ingot as a promising direction for increasing the yield of usable . Based on the analysis of two-layer technology of production of steel ingots using electro heating . These results of this technology . A statistically significant relationship between the composition of the metal melt and oxidizability and temperature for 350 - ton top-blown converters . To improve the quality of the cast steel is necessary to reduce or completely remove harmful impurities fusible , practically insoluble or poorly soluble in the solid metal. In general , reducing the harmful effects of non-ferrous metal impurities can be carried out in three directions. First, determine the maximum allowable concentrations of certain impurities in the steel grade , which is not seen in a noticeable decline in the quality of the metal; secondly decrease pollutant concentrations due to the use of net of charge , alloying , slag-forming materials and the application of modern methods of secondary treatment ; thirdly - the use of special additives alkaline - earth and rare earth elements forming refractory compounds with harmful impurities greatly reduce their harmful effects. Use area - steel industry . Product Description popup.authors Бондар Владислав Іванович Бурлаков Віктор Іванович Макуров Сергій Леонідович Тарасюк Леонід Іванович popup.nrat_date 2020-04-02 Close