. . . "P(ED0040/01/01), P(FR-TI3/243)" . . "177306" . . "Kov\u00E1\u010D, Marek" . "1"^^ . . "P\u0159edpokladem minimalizace obecn\u011B zn\u00E1m\u00FDch vad ocelov\u00FDch ingot\u016F je znalost a optimalizace st\u00E1vaj\u00EDc\u00EDch parametr\u016F odl\u00E9v\u00E1n\u00ED, jako je lic\u00ED rychlost, teplota odl\u00E9van\u00E9 taveniny, teplota p\u0159edeh\u0159evu kokily \u010Di pom\u011Br H/D kokily. Zvl\u00E1\u0161t\u011B v n\u00E1ro\u010Dn\u00FDch metalurgick\u00FDch podm\u00EDnk\u00E1ch, kde lze velmi obt\u00ED\u017En\u011B z\u00EDskat informaci o zp\u016Fsobu pln\u011Bn\u00ED kokily taveninou oceli a makrostruktu\u0159e ztuhl\u00E9ho ingotu, je vhodn\u00E9 uplatnit metodu numerick\u00E9ho modelov\u00E1n\u00ED v n\u011Bkter\u00E9m z dostupn\u00FDch simula\u010Dn\u00EDch softwarov\u00FDch produkt\u016F. V r\u00E1mci \u0159e\u0161en\u00ED projektu Region\u00E1ln\u00ED materi\u00E1lov\u011B technologick\u00E9 v\u00FDzkumn\u00E9 centrum (RMTVC) bylo roz\u0161\u00ED\u0159eno laboratorn\u00ED z\u00E1zem\u00ED Katedry metalurgie a sl\u00E9v\u00E1renstv\u00ED a Katedry fyzik\u00E1ln\u00ED chemie a teorie technologick\u00FDch pochod\u016F Fakulty metalurgie a materi\u00E1lov\u00E9ho in\u017Een\u00FDrstv\u00ED (FMMI)Vysok\u00E9 \u0161koly b\u00E1\u0148sk\u00E9 \u2013 Technick\u00E9 univerzity Ostrava o nov\u00E9 pracovi\u0161t\u011B \u201ELaborato\u0159 modelov\u00E1n\u00ED proces\u016F v tekut\u00E9 a tuh\u00E9 f\u00E1zi\u201C. Sou\u010D\u00E1st\u00ED laboratorn\u00EDho vybaven\u00ED je i nov\u011B po\u0159\u00EDzen\u00ED komer\u010Dn\u00ED simula\u010Dn\u00ED software Propast ur\u010Den\u00FD p\u0159edev\u0161\u00EDm pro 3D pln\u011B prostorov\u00FD numerick\u00FD v\u00FDpo\u010Det a simulaci dynamiky proud\u011Bn\u00ED taveniny v oceli v pr\u016Fb\u011Bhu pln\u011Bn\u00ED kovov\u00E9 formy (kokily) a n\u00E1sledn\u00E9ho tuhnut\u00ED oceli s predikc\u00ED makrosegregac\u00ED a zbytkov\u00E9ho pnut\u00ED vedouc\u00EDho ke vzniku trhlin a prasklin. Nezbytnou podm\u00EDnkou z\u00EDsk\u00E1n\u00ED relevantn\u00EDch v\u00FDsledk\u016F numerick\u00E9ho modelov\u00E1n\u00ED lit\u00ED a tuhnut\u00ED ocelov\u00FDch ingot\u016F je v\u0161ak korektn\u00ED nastaven\u00ED parametr\u016F v\u00FDpo\u010Dtu od p\u0159\u00EDpravy geometrie kokily/ingotu/lic\u00EDho syst\u00E9mu, hustoty v\u00FDpo\u010Detn\u00ED s\u00EDt\u011B a\u017E po zad\u00E1v\u00E1n\u00ED hodnot koeficient\u016F p\u0159estup\u016F tepla, materi\u00E1lov\u00FDch vlastnost\u00ED \u010Di definice rychlosti pln\u011Bn\u00ED v z\u00E1vislosti na \u010Dase. P\u0159\u00EDsp\u011Bvek se zab\u00FDv\u00E1 testov\u00E1n\u00EDm a optimalizac\u00ED podm\u00EDnek nastaven\u00ED numerick\u00E9ho modelu pln\u011Bn\u00ED a tuhnut\u00ED ocelov\u00FDch ingot\u016F v prost\u0159ed\u00ED nov\u011B po\u0159\u00EDzen\u00E9ho komer\u010Dn\u00EDho simula\u010Dn\u00EDho software."@cs . . "Tkadle\u010Dkov\u00E1, Mark\u00E9ta" . . . "P\u0159edpokladem minimalizace obecn\u011B zn\u00E1m\u00FDch vad ocelov\u00FDch ingot\u016F je znalost a optimalizace st\u00E1vaj\u00EDc\u00EDch parametr\u016F odl\u00E9v\u00E1n\u00ED, jako je lic\u00ED rychlost, teplota odl\u00E9van\u00E9 taveniny, teplota p\u0159edeh\u0159evu kokily \u010Di pom\u011Br H/D kokily. Zvl\u00E1\u0161t\u011B v n\u00E1ro\u010Dn\u00FDch metalurgick\u00FDch podm\u00EDnk\u00E1ch, kde lze velmi obt\u00ED\u017En\u011B z\u00EDskat informaci o zp\u016Fsobu pln\u011Bn\u00ED kokily taveninou oceli a makrostruktu\u0159e ztuhl\u00E9ho ingotu, je vhodn\u00E9 uplatnit metodu numerick\u00E9ho modelov\u00E1n\u00ED v n\u011Bkter\u00E9m z dostupn\u00FDch simula\u010Dn\u00EDch softwarov\u00FDch produkt\u016F. V r\u00E1mci \u0159e\u0161en\u00ED projektu Region\u00E1ln\u00ED materi\u00E1lov\u011B technologick\u00E9 v\u00FDzkumn\u00E9 centrum (RMTVC) bylo roz\u0161\u00ED\u0159eno laboratorn\u00ED z\u00E1zem\u00ED Katedry metalurgie a sl\u00E9v\u00E1renstv\u00ED a Katedry fyzik\u00E1ln\u00ED chemie a teorie technologick\u00FDch pochod\u016F Fakulty metalurgie a materi\u00E1lov\u00E9ho in\u017Een\u00FDrstv\u00ED (FMMI)Vysok\u00E9 \u0161koly b\u00E1\u0148sk\u00E9 \u2013 Technick\u00E9 univerzity Ostrava o nov\u00E9 pracovi\u0161t\u011B \u201ELaborato\u0159 modelov\u00E1n\u00ED proces\u016F v tekut\u00E9 a tuh\u00E9 f\u00E1zi\u201C. Sou\u010D\u00E1st\u00ED laboratorn\u00EDho vybaven\u00ED je i nov\u011B po\u0159\u00EDzen\u00ED komer\u010Dn\u00ED simula\u010Dn\u00ED software Propast ur\u010Den\u00FD p\u0159edev\u0161\u00EDm pro 3D pln\u011B prostorov\u00FD numerick\u00FD v\u00FDpo\u010Det a simulaci dynamiky proud\u011Bn\u00ED taveniny v oceli v pr\u016Fb\u011Bhu pln\u011Bn\u00ED kovov\u00E9 formy (kokily) a n\u00E1sledn\u00E9ho tuhnut\u00ED oceli s predikc\u00ED makrosegregac\u00ED a zbytkov\u00E9ho pnut\u00ED vedouc\u00EDho ke vzniku trhlin a prasklin. Nezbytnou podm\u00EDnkou z\u00EDsk\u00E1n\u00ED relevantn\u00EDch v\u00FDsledk\u016F numerick\u00E9ho modelov\u00E1n\u00ED lit\u00ED a tuhnut\u00ED ocelov\u00FDch ingot\u016F je v\u0161ak korektn\u00ED nastaven\u00ED parametr\u016F v\u00FDpo\u010Dtu od p\u0159\u00EDpravy geometrie kokily/ingotu/lic\u00EDho syst\u00E9mu, hustoty v\u00FDpo\u010Detn\u00ED s\u00EDt\u011B a\u017E po zad\u00E1v\u00E1n\u00ED hodnot koeficient\u016F p\u0159estup\u016F tepla, materi\u00E1lov\u00FDch vlastnost\u00ED \u010Di definice rychlosti pln\u011Bn\u00ED v z\u00E1vislosti na \u010Dase. P\u0159\u00EDsp\u011Bvek se zab\u00FDv\u00E1 testov\u00E1n\u00EDm a optimalizac\u00ED podm\u00EDnek nastaven\u00ED numerick\u00E9ho modelu pln\u011Bn\u00ED a tuhnut\u00ED ocelov\u00FDch ingot\u016F v prost\u0159ed\u00ED nov\u011B po\u0159\u00EDzen\u00E9ho komer\u010Dn\u00EDho simula\u010Dn\u00EDho software." . "Verifikace vlivu okrajov\u00FDch parametr\u016F lit\u00ED ocelov\u00FDch ingot\u016F na velikost objemov\u00FDch vad"@cs . "5"^^ . . "[B0517121BD29]" . "LXV" . "RIV/25877950:_____/12:#0000052!RIV14-MPO-25877950" . "Hutnick\u00E9 listy" . "0018-8069" . "Klus, Petr" . "Verification of the Effect of Boundary Conditions of Steel Ingot Castings on the Size of their Volume Defects"@en . "RIV/25877950:_____/12:#0000052" . "CZ - \u010Cesk\u00E1 republika" . "Verification of the Effect of Boundary Conditions of Steel Ingot Castings on the Size of their Volume Defects"@en . . . . "The knowledge of existing casting parameters, such as casting speed, casting temperature of steel or the H/D ingot ratio, is the main precondition for minimization of the well-known defects of steel ingots. Especially in demanding metallurgical conditions, it is appropriate to apply the method of numerical modelling using some of the available simulation softwares. Within the project entitled the Regional Materials Science and Technology Centre, the technical background of the Department of Metallurgy and Department of Physical Chemistry and Theory of Technological Processes at the Faculty of Metallurgy and Materials Engineering (FMME) at the VSB - Technical University of Ostrava was extended by the workplace %22Laboratory of Modelling of Processes in the Liquid and Solid Phases\u201D. The laboratory is equipped with new commercial simulation software ProCAST intended for 3D numerical simulation of molten steel flow during the filling of a metal mould and subsequent steel solidification with prediction of macro-segregation and residual stress leading to cracks. The paper deals with testing and optimization of the conditions of numerical model settings for simulation of 1.9-tons steel ingot casting and solidification in software ProCAST. The first simulation results of casting and solidification of steel in the environment of the newly purchased simulation software within the framework of the RMSTC project clearly demonstrated the power of the numerical tool for design and optimization of processes occurring during casting and solidification of steel. The temperature fields suggest that during the solidification the enclosure of the thermal node in the central area of ingot body occurs. It appears that in this critical area micro- and possibly macro-porosity will arise due to prevention of the molten steel filling from the hot top of the ingot. Closing of the liquid core in the volume of the ingot body was confirmed by displaying the solid fraction ratio."@en . . "Gryc, Karel" . "Verifikace vlivu okrajov\u00FDch parametr\u016F lit\u00ED ocelov\u00FDch ingot\u016F na velikost objemov\u00FDch vad"@cs . "Socha, Ladislav" . "7"^^ . "Michalek, Karel" . . . "2" . . "Verifikace vlivu okrajov\u00FDch parametr\u016F lit\u00ED ocelov\u00FDch ingot\u016F na velikost objemov\u00FDch vad" . . "Verifikace vlivu okrajov\u00FDch parametr\u016F lit\u00ED ocelov\u00FDch ingot\u016F na velikost objemov\u00FDch vad" . "Machov\u010D\u00E1k, Pavel" . . "numerical simulation; steel ingot; casting; solidification; macro-porosity; micro-porosity"@en . .