20 KB876 KB19 KB199219991997Etienne, F.Ziarovski, E.letnik:315 straništevilka:6str. 545-549ISSN:1318-0010COBISSID:71850URN:URN:NBN:SI:doc-Z1ID9MXLenInštitut za kovinske materiale in tehnologijeŽelezarna JeseniceŽelezarna RavneŽelezarna ŠtoreKovine zlitine tehnologijejeklarstvoMetallurgical and Materials Engineeringmetalurgijaognjevzdržni materialiponovceIntroduction of unshaped refractories in the wear lining of steel ladles| Uporaba neoblikovanega ognjestalnega materiala za obrabno obstojno obzidavo jeklarskih ponovc|Steel ladles are essential tools in steelmaking . In the past, research was almost entirely centered on converters but nowadays attention has focused on ladles. The determining factor for the choice of a lining is the cost per tonne of steel as well as reliability, security availability and metal purity. The cost per tonne of steel has now reached a constant level with shaped products and can hardly be improved. The introduction of new technology and radical changes are the only possible means to make the improvements in the economic situation. The application of unshaped products to the ladle may provide a solution. Experience in Japan has shown that improvements are possible when techniques utilising monolithics in ladles are adapted. Here we intend to describe the trials carried out by Lafarge Réfractaires Monolithiques and the first significant industrial results with the use of monolithic ladles in European conditionsJeklarske ponovce so bistveno orodje za izdelavo jekla. V preteklosti je bila pozornost usmerjena predvsem v konvertorje, sedaj pa se pozornost usmerja ponovce. Odločujoči dejavnik pri izbiri obzidave so strošek na tono jekla ter zanesljivost, varnost, razpoložljivost in čistost kovine. Strošek na tono jekla je pri oblikovanih proizvodih sedaj dosegel konstantni nivo in ga bo težko izboljšati. Razvoj nove tehnologije in radikalne spremembe so edina možnost za izboljšanje gospodarskega položaja. Uporaba neoblikovanih proizvodov za ponovce bi lahko bila rešitev. Izkušnje iz Japonske so pokazale, da je mogoč napredek z uporabo monolitov v ponovcah. Tu želimo opisati reizkuse, ki so bili izvršeni pri Lafarge Réfractaries Monolithiques in prve pomembne industrijske rezultate pri uporabi monolitskih ponovc v evropskih pogojihTEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of Slovenia