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Št. zadetkov: 9
The development of a chill mould for tool steels using numerical modelling
Martin Balcar, Rudolf Železný, Libor Sochor, Pavel Fila, Ludvík Martínek
Izvirni znanstveni članek
Oznake: orodna jekla;kokile;ulivanje;kovanje;modeliranje;
Leto: 2008 Vir: dLib.si Digitalna knjižnica Slovenije
Modelling of the solidification process and the chemical heterogeneity of a 26NiCrMoV115 steel ingot
Martin Balcar, Rudolf Železný, Ludvík Martínek, Pavel Fila, Jiří Bažan
Izvirni znanstveni članek
Oznake: forging ingot;solidification heterogeneity;modelling of segregations;
Steel making at ŽĎAS, a.s. using secondary metallurgy technology makes it possible to produce liquid metal with high levels of metallurgical cleanliness. During the casting and subsequent cooling of forging ingots, the steel solidification takes place. Directional material solidification, grain size ...
Leto: 2007 Vir: dLib.si Digitalna knjižnica Slovenije
Wear of refractory materials for ceramic filters of different porosimetry in contact with hot metal
Jiří Bažan, Ladislav Socha, Ludvík Martínek, Pavel Fila, Martin Balcar, Jaroslav Chmelař
Strokovni članek
Oznake: jeklo;keramika;ognjevzdržni material;korozija;erozija;poroznost;
Leto: 2011 Vir: dLib.si Digitalna knjižnica Slovenije
The influence of the microalloying elements of HSLA steel on the microstructure and mechanical properties
Danijela Anica Skobir Balantič, Matjaž Godec, Martin Balcar, Monika Jenko
Izvirni znanstveni članek
Oznake: high-strength;low-alloy (HSLA) steels;microalloying elements;precipitates;mechanical properties;electron microscopy;
In this work, hot-forged, high-strength, low-alloy (HSLA) steels based on the chemical composition 34CrNiMo6 were investigated in order to determine the type of precipitates forming and their effect on the mechanical properties. The individual steels were microalloyed with one of the following eleme ...
Leto: 2010 Vir: dLib.si Digitalna knjižnica Slovenije
Application of the theory of physical similarity for the filtration of metallic melts
Martin Balcar, Pavel Fila, Ludvík Martínek, Karel Stransky, Jiří Bažan, Jana Dobrovská
Izvirni znanstveni članek
Oznake: tok tekočin;taline;filtriranje;modeli;
Leto: 2008 Vir: dLib.si Digitalna knjižnica Slovenije
An evaluation of the properties of rotor forgings made from 26NiCrMoV115 steel
Martin Balcar, Václav Turecký, Libor Sochor, Pavel Fila, Ludvík Martínek, Jiří Bažan, Stanislav Němeček, Dušan Kešner
Strokovni članek
Oznake: gas turbine;rotor shaft;forging;mechanical properties;FATT T[sub]50;
The development and verification of production technology for the rotor forgings of compressors and generators demonstrate the significant effect of the forming of the input ingot on the final properties of the forgings. The measured yield strength and the strength limit show a trend of dependence o ...
Leto: 2008 Vir: dLib.si Digitalna knjižnica Slovenije
Developing and testing a new type-8K mould for tool-steel ingot casting
Martin Balcar, Libor Sochor, Rudolf Železný, Pavel Fila, Ludvík Martínek, Libor Kraus, Dušan Kešner, Jiří Bažan
Strokovni članek
Oznake: tool steel;mould;ingot casting;solidification;forging;ultrasonic testing;
The traditional production of machinery and tools at ŽĎAS, a. s., and the increasing requirements placed on the final product, particularly those related to the internal quality of forgings, requires new technological measures for the ingot's casting and solidification. The development and use of th ...
Leto: 2008 Vir: dLib.si Digitalna knjižnica Slovenije
The quality of super-clean steels produced at ŽĎAS, inc.
Martin Balcar, Ludvík Martínek, Pavel Fila, Jaroslav Novák, Jiří Bažan, Ladislav Socha, Danijela Anica Skobir Balantič, Matjaž Godec
Strokovni članek
Oznake: super-clean steel;steelmaking;secondary metallurgy;ingot casting;
The production of Super-Clean Steels for the rotor forgings of compressors and generators for gas-turbine units started at ŽĎAS with the use of secondary metallurgy processes, a ladle furnace and vacuum degassing. The development and optimization of Super-Clean Steel production technology enables ef ...
Leto: 2012 Vir: dLib.si Digitalna knjižnica Slovenije
Heat treatment and mechanical properties of heavy forgings from A694-F60 steel
Martin Balcar, Jaroslav Novák, Libor Sochor, Pavel Fila, Ludvík Martínek, Jiří Bažan, Ladislav Socha, Danijela Anica Skobir Balantič, Matjaž Godec
Strokovni članek
Oznake: HSLA steel;A694 F605;quenching and tempering;
The production of heavy steel forgings of micro-alloyed steels gives the possibility to obtain advantages associated with the benefit of the application of micro-alloying elements and thermomechanical treatments for improving the mechanical properties of forgings to level by sheets, strips and tubes ...
Leto: 2011 Vir: dLib.si Digitalna knjižnica Slovenije
Št. zadetkov: 9
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