1836 KB24 KB200020242014Čamek, LiborKorbáš, MartinRaclavský, Milanletnik:48številka:5str. 781-786COBISSID:1097898ISSN:1580-2949URN:URN:NBN:SI:doc-F9ZFYFOKenInštitut za kovinske materiale in tehnologijeMateriali in tehnologiječistost jeklaelectron microscopeelektronska mikroskopijaocclusionsocenaplamensko odžiganjesecondary metallurgysekundarna metalurgijasingle-spark evaluationsteel purityzaporePossibilities for increasing the purity of steel in production using secondary-metallurgy equipment| Možnosti povečanja čistosti jekla pri proizvodnji z uporabo opreme za sekundarno metalurgijo|The possibilities for increasing the purity of steel during the production of the liquid phase using secondary metallurgy mainly relate to affecting the number of emerging occlusions, their size, morphology and chemical composition. The metallographic purity of steel during production in an electric-arc furnace (EAF), in a ladle furnace (LF) and during processing with VD caisson technology was assessed. The steel samples were processed by means of an electron microscope and were simultaneously tested using the single-spark-evaluation (SSE) method. The aim of this investigation was to find the possibility for an operative steel-quality control and to obtain the desired mechanical properties already while processing the liquid phaseMožnosti povečanja čistosti staljenega jekla med proizvodnjo z uporabo sekundarne metalurgije so predvsem glede na količino vključkov, njihove velikosti, vrsto morfologije in kemijsko sestavo. Metalografsko je bila ugotavljana čistost jekla med proizvodnjo v elektroobločni peči (EAF), nato v ponovčni peči (LF) in po obdelavi v VD. Vzorci so bili pregledani z elektronskim mikroskopom in so bili preizkušeni z metodo plamenskega odžiganja (SSE). Namen je bil poiskati učinkovito kontrolo jekla in vplive na želene mehanske lastnosti že med obdelavo talineTEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaInštitut za kovinske materiale in tehnologije