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Information × Registration Number 0211U007329, 0110U001778 , R & D reports Title Manufacture technology development of vibrocast products from fused Y2О3-stabilized ZrО2 and manufacture technology improvement of products from fused CaО-stabilized ZrО2 and fused monoclinic ZrО2 and trial lots of products production. popup.stage_title Head Galchenko T., Registration Date 15-04-2011 Organization The open joint stock company " The Ukrainian research institute of refractories named A.S.Berezhnoy" popup.description2 The research subject is refractory products from fused stabilized zirconia and from fused monoclinic zirconia.The purpose of the work is production technology development vibrocasting shapes from fused stabilized Y2O3 zirconia and production technology reprocessing of products from fused stabilized CaO and fused monoclinic ZrО2.The research methods are chemical, petrographic and X-ray ones.The researches of the influence of dispersive additives mix in different ration and humidity of mass on the flowing at vibration of grained mass of poly-fractional composition from ZrО2, stabilized Y2O3, as well as firing temperature, on the properties of vibrocasting samples from the indicated mass have been carried out. The optimum of the indicated additives ratio, their quantity and humidity of mass for vibrocasting has been established. It has been shown that optimal firing temperature of developed products is 1750°C. As a result of carried out researches, the production technology of new kind of product - vibrocasting shapes from ZrО2, stabilized Y2O3 has been developed. The indicated products have high indexes of properties: open porosity - 12.8-13.3 %; apparent density - 5.12-5.17 g/cm3; compression strength - 95-102 MPa. Project of Change to the appropriate technical documentation have been developed.As a result of carried out comparison researches of the influence of different dispersive and fluidity additives and humidity of mass on the flowing at vibration of grained mass from ZrО2, stabilized CaO, the production technology of vibrocasting crucibles from the indicated material has been improved. As a result of this, a humidity of forming mass has been decreased on 0.5-0.7 %. Vibrocasting samples, produced from the indicated mass with using obtained results, after firing at temperature 1750°C had properties, which corresponded requirements of the appropriate technical documentation.As a result of carried out researches of the influence of alumina additive of different producers, the production technology of products from monoclinic ZrО2 has been improved at the expense of raw materials base expanding. It has been determined the possibility of application of aluminas made by different producers in the manufacture of mentioned products without technology changing with assuring of fired products properties level. As a result of carried out work, the technical documentation for manufacture of shaped vibrocast products from yttria-stabilized zirconia has been developed, approved and put into operation. In OJSC "The Ukrainian research institute of refractories named after A.S. Berezhnoy" the pilot batches of products from fused Y2O3,-stabilized ZrО2, fused CaO-stabilized ZrО2 and fused monoclinic zirconia have been produced. Made products by properties satisfy's requirements of appropriate technical documentation of Ukraine and consumers requirements.Made refractory products were delivered to consumers of domestic and foreign markets (export to Russian Federation and Belorussia Republic). Product Description popup.authors Гальченко Т.Г Кущенко П.О. popup.nrat_date 2020-04-02 Close