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Št. zadetkov: 8
The influence of the chemical composition of steels on the numerical simulation of a continuously cast slab
Jozef Stetina, František Kavička
Izvirni znanstveni članek
Oznake: kontinuirno uliti drogovi;nihajoče oznake;numerični model;strjevanje;
Leto: 2011 Vir: dLib.si Digitalna knjižnica Slovenije
Final-structure prediction of continuously cast billets
Josef Štětina, Lubomír Klimeš, Tomas Mauder, František Kavička
Izvirni znanstveni članek
Oznake: continuous casting;concast billet;numerical model;solidification;heat transfer;
In steel production, controlling and monitoring quality, grade and structure of final steel products are very important issues. It has been shown that the temperature distribution, the magnitude of temperature gradients, as well as the cooling strategy during the continuous steel casting have a sign ...
Leto: 2012 Vir: dLib.si Digitalna knjižnica Slovenije
Minimization of surface defects by increasing the surface temperature during the straightening of a continuously cast slab
Jozef Stetina, Tomas Mauder, Lubomir Klimes, František Kavička
Izvirni znanstveni članek
Oznake: optimization of the temperature field;surface temperature of a slab;characteristics of nozzles;continuous casting;
Surface temperatures of cast slabs on small-radius segments as well as on the unbent areas belong to the parameters that affect the surface quality of continuously cast slabs. Older machines for continuous casting were designed with regard to the quantity (the amount of cast slabs) rather than the q ...
Leto: 2013 Vir: dLib.si Digitalna knjižnica Slovenije
Numerical and experimental analyses of the chemical heterogeneity of a solidifying heavy ductile-cast-iron roller
Karel Stransky, František Kavička, Buhumil Sekanina, Jana Dobrovská, Vasilij Gontarev
Strokovni članek
Oznake: spheroidal graphite cast iron;roller;solidification;chemical and structural heterogeneity;methodology for measurement;
The quality of the working rollers used for rolling rails is determined by the chemical and structural compositions of the material of the rollers and the production technology. It is necessary to cast rollers with significantly improved utility properties, i.e., mainly a high wear resistance and op ...
Leto: 2012 Vir: dLib.si Digitalna knjižnica Slovenije
A new approach to evaluating the chemical micro-heterogeneity of a continuously cast steel slab
Věra Dobrovská, Karel Stransky, Hana Francová, Jana Dobrovská, František Kavička
Izvirni znanstveni članek
Oznake: micro-segregation;effective partition coefficient;continuous;casting;steel;
The paper deals with a new approach to measuring and evaluating the chemical micro-heterogeneity of the elements in solidified poly-component metallic systems. The original approach is based on experimental measurements made on the samples taken from characteristic places in a casting and the subseq ...
Leto: 2013 Vir: dLib.si Digitalna knjižnica Slovenije
Numerical and experimental investigation of the temperature field of a solidifying massive ductile-cast-iron roller
František Kavička, Karel Stransky, Jana Dobrovská, Buhumil Sekanina, Josef Štětina, Vasilij Gontarev
Izvirni znanstveni članek
Oznake: rolling;Spheroidized graphite cast iron (SGI);massive roller;solidification;temperature field;numerical model;
The quality of the working rollers used for rolling rails of different profiles is determined by the chemical and structural composition of the material of the rollers and the production technology The requirements for the quality cannot be ensured without a perfect knowledge of the course of the so ...
Leto: 2012 Vir: dLib.si Digitalna knjižnica Slovenije
The effect of electromagnetic stirring on the crystallization of the concast billets
Karel Stransky, František Kavička, Buhumil Sekanina, Jozef Stetina, Vasilij Gontarev, Jana Dobrovská
Strokovni članek
Oznake: kontinuirno ulivanje;elektromagnetno mešanje;dendritna struktura;kakovost gredic;napake;
Leto: 2011 Vir: dLib.si Digitalna knjižnica Slovenije
Numerical optimization of the method of cooling of a massive casting of ductile cast-iron
František Kavička, Buhumil Sekanina, Jozef Stetina, Karel Stransky, Vasilij Gontarev, Jana Dobrovská
Izvirni znanstveni članek
Oznake: ductile cast-iron;massive casting;cooling;temperature field;numerical model;
An original application of ANSYS simulating the forming of the temperature field of a massive casting from ductile cast-iron during the application various methods of its cooling using steel chills. The numerical model managed to optimize more than one method of cooling but, in addition to that, pro ...
Leto: 2009 Vir: dLib.si Digitalna knjižnica Slovenije
Št. zadetkov: 8
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