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Year 2011 No 4

B. Hadzima, L. Bukovinová
ELECTROCHEMICAL CHARACTERISTICS OF SHOT-PEENED AND PHOSPHATIZED AE21 MAGNESIUM ALLOY
Keywords: phosphating|shot-peening|magnesium alloys|corrosion|electrochemical impedance spectroscopy|
No 4 (2011), p. 228-235
  mag01.pdf (492 kB)
mag01_eng.txt (818 B)  

K. Hakulinová
THE METHODS FOR MEASUREMENT OF THE SLAGS MELTING TEMPERATURE
Keywords: casting|slag properties|melting temperature|high – temperature microscope|
No 4 (2011), p. 236-244
  mag02.pdf (388 kB)
mag02_eng.txt (773 B)  

J. Legemza, M. Fröhlichová, R. Findorák, F. Bakaj
THE SIMULATING OF PRODUCTION THE AGGLOMERATE IN LABORATORY SINTERING PAN
Keywords: sintering|laboratory sintering pan|CO|CO2 emissions|recovery|productivity|
No 4 (2011), p. 245-253
  mag03.pdf (345 kB)
mag03_eng.txt (1 kB)  

P. Lukáč, P. Kapalo
ANALYSIS OF HEAT EXCHANGE PROCESSES IN THE HOT WATER DISTRIBUTION SYSTEMS DURING ITS INTERRUPTED OPERATION
Keywords: hot water distribution system|heat losses|finite volume modelling|energy savings|
No 4 (2011), p. 253-262
  mag04.pdf (189 kB)
mag04_eng.txt (627 B)  

T. Borovský, J. Kijac, B. Buľko, M. Domovec, J. Havran
THE EFFECTIVENESS OF DEPHOSPHORIZATION WITH AND WITHOUT FLUORSPAR USING IN THE ELECTRIC ARC FURNACE STEELMAKING
Abstract
This article deals with comparison of parameters from two different technologies – one with fluorspar and another one without fluorspar using. Fluorspar is being eliminated due to its toxicity and negative environmental impact. The statistical evaluation of 60 campaigns of electric arc furnace plant was performed. According to the graphical relationships and average values of parameters, it was found that chemical compositions of slags did not change practically and high effective dephosphorization can be achieved without fluorspar too. The negative influence of fluorspar using on the refractory lining and also negative influence of rising temperature on the phosphorus removal were confirmed.

Keywords: steels|slag|fluorspar|phosphorus|electric arc furnace|
No 4 (2011), p. 263-268
  mag05.pdf (80 kB)
mag05_eng.txt (718 B)  

M. Džupková, M. Fröhlichová, J. Legemza, R. Findorák
EVALUATION OF SELECTED TECHNOLOGICAL AND ECOLOGICAL PARAMETERS OF SINTER PRODUCTION
Keywords: sintering|underpressure sucking air|humidity|particulate matter|
No 4 (2011), p. 269-275
  mag06.pdf (90 kB)
mag06_eng.txt (1 kB)