{"?xml":{"@version":"1.0"},"edm:RDF":{"@xmlns:dc":"http://purl.org/dc/elements/1.1/","@xmlns:edm":"http://www.europeana.eu/schemas/edm/","@xmlns:wgs84_pos":"http://www.w3.org/2003/01/geo/wgs84_pos","@xmlns:foaf":"http://xmlns.com/foaf/0.1/","@xmlns:rdaGr2":"http://rdvocab.info/ElementsGr2","@xmlns:oai":"http://www.openarchives.org/OAI/2.0/","@xmlns:owl":"http://www.w3.org/2002/07/owl#","@xmlns:rdf":"http://www.w3.org/1999/02/22-rdf-syntax-ns#","@xmlns:ore":"http://www.openarchives.org/ore/terms/","@xmlns:skos":"http://www.w3.org/2004/02/skos/core#","@xmlns:dcterms":"http://purl.org/dc/terms/","edm:WebResource":[{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:DOC-RZQI46EV/20d6fb2e-823c-45c6-aef1-fbf9dfe91bad/HTML","dcterms:extent":"21 KB"},{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:DOC-RZQI46EV/e0f178f2-7b20-4781-880a-d57564ce2f58/PDF","dcterms:extent":"538 KB"},{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:DOC-RZQI46EV/2518a3f3-9319-464e-957f-c0f502a15eb3/TEXT","dcterms:extent":"18 KB"}],"edm:TimeSpan":{"@rdf:about":"2000-2024","edm:begin":{"@xml:lang":"en","#text":"2000"},"edm:end":{"@xml:lang":"en","#text":"2024"}},"edm:ProvidedCHO":{"@rdf:about":"URN:NBN:SI:DOC-RZQI46EV","dcterms:isPartOf":[{"@rdf:resource":"https://www.dlib.si/details/urn:nbn:si:spr-ihg6vo21"},{"@xml:lang":"sl","#text":"Materiali in tehnologije"}],"dcterms:issued":"2013","dc:creator":["Gontarev, Vasilij","Kavička, František","Masarik, Milos","Mauder, Tomas","Sekanina, Buhumil","Stetina, Jozef","Stransky, Karel"],"dc:format":[{"@xml:lang":"sl","#text":"številka:4"},{"@xml:lang":"sl","#text":"letnik:47"},{"@xml:lang":"sl","#text":"str. 497-501"}],"dc:identifier":["COBISSID:1004970","ISSN:1580-2949","URN:URN:NBN:SI:doc-RZQI46EV"],"dc:language":"en","dc:publisher":{"@xml:lang":"sl","#text":"Inštitut za kovinske materiale in tehnologije"},"dc:subject":[{"@xml:lang":"sl","#text":"heterogenost"},{"@xml:lang":"sl","#text":"kemijska sestava"},{"@xml:lang":"sl","#text":"kontinuirno litje"},{"@xml:lang":"sl","#text":"numerični model"},{"@xml:lang":"sl","#text":"slabi"},{"@xml:lang":"sl","#text":"temperaturno polje"}],"dcterms:temporal":{"@rdf:resource":"2000-2024"},"dc:title":{"@xml:lang":"sl","#text":"Comparison of the temperature fields of continuously cast steel slabs with different chemical compositions| Primerjava temperaturnega polja kontinuirno ulitih jeklenih slabov različnih kemijskih sestav|"},"dc:description":[{"@xml:lang":"sl","#text":"The numerical model made by the authors was used for simulating the transient temperature fields of the continuously cast steel slabs with two different chemical compositions. The model solves the Fourier-Kirchhoff equation of the temperature fields of the slab-crystallizer system and the slab-ambient system with the following main thermophysical parameters: thermal conductivity, specific-heat capacity, density and enthalpy. When both melts follow each other closely, the critical state of the so-called breakout occurs at a certain point in the secondary cooling zone of a caster. It is probably a combination of surface defects. However, different chemical compositions of the two steels and their mixture are apparently decisive. Therefore, the temperature model simulated the temperature history of every point of a cross-section of a slab during its movement through the caster from the level of the melt in the crystallizer to the cutting torch for both melts and their mixture. The calculation of the temperature field of a slab is mainly focused on the part of the slab before the breakout and its surroundings. The results for the temperature field are used to set up a model of chemical heterogeneity of the steel supported by the material investigation of the samples taken from the breakout"},{"@xml:lang":"sl","#text":"Uporabljen je bil originalen numerični model za simulacijo prehodnega temperaturnega polja kontinuirno ulitih jeklenih slabov dveh različnih kemijskih sestav. Model rešuje Fourier-Kirchhoffovo enačbo za sistema slab-kristalizator oz. slab-okolje z naslednjimi glavnimi termo-fizikalnimi parametri: toplotna prevodnost, specifična toplotna kapaciteta, gostota in entalpija. Ko se talina v formi zmeša s prejšnjo, pride do kritičnega stanja, t. i. prodora v določeni točki livne sekundarne hladilne cone. To nastane verjetno zaradi kombinacije površinskih napak. Tako je različna kemijska sestava dveh jekel in njihovo mešanje očitno odločilno pri tem pojavu. Temperaturni model je simuliral temperaturni potek v vsaki točki prečnega prereza slaba med njegovim gibanjem skozi celotni livni stroj od nivoja taline v kristalizatorju do rezalnega plamena za obe talini in njune mešanice. Izračun temperaturnega polja slaba je bil osredinjen predvsem na del slaba pred prodorom in njegovo okolico. Model kemijske heterogenosti jekla se lahko uveljavi z rezultati temperaturnega polja in z raziskavami vzorcev, ki so bili odvzeti iz območja prodora"}],"edm:type":"TEXT","dc:type":[{"@xml:lang":"sl","#text":"znanstveno časopisje"},{"@xml:lang":"en","#text":"journals"},{"@rdf:resource":"http://www.wikidata.org/entity/Q361785"}]},"ore:Aggregation":{"@rdf:about":"http://www.dlib.si/?URN=URN:NBN:SI:DOC-RZQI46EV","edm:aggregatedCHO":{"@rdf:resource":"URN:NBN:SI:DOC-RZQI46EV"},"edm:isShownBy":{"@rdf:resource":"http://www.dlib.si/stream/URN:NBN:SI:DOC-RZQI46EV/e0f178f2-7b20-4781-880a-d57564ce2f58/PDF"},"edm:rights":{"@rdf:resource":"http://rightsstatements.org/vocab/InC/1.0/"},"edm:provider":"Slovenian National E-content Aggregator","edm:intermediateProvider":{"@xml:lang":"en","#text":"National and University Library of Slovenia"},"edm:dataProvider":{"@xml:lang":"sl","#text":"Inštitut za kovinske materiale in tehnologije"},"edm:object":{"@rdf:resource":"http://www.dlib.si/streamdb/URN:NBN:SI:DOC-RZQI46EV/maxi/edm"},"edm:isShownAt":{"@rdf:resource":"http://www.dlib.si/details/URN:NBN:SI:DOC-RZQI46EV"}}}}