Visits: 82769650
AMS now reading: 1




Year 2012 No 1

M. Matvija, M. Fujda, O. Milkovič, T. Kvačkaj, M. Vojtko, P. Zubko, R. Kočiško
THE EFFECT OF ECAP AND SUBSEQUENT POST-ECAP ANNEALING ON THE MICROSTRUCTURE AND MECHANICAL PROPERTIES OF AlSi7Mg0.3 ALLOY
Keywords: aluminium alloys|ECAP|annealing|microstructure|mechanical properties|
No 1 (2012), p. 4-12
  mag01.pdf (708 kB)
mag01_eng.txt (781 B)  

D. Jakubéczyová, M. Hagarová, J. Savková
EVALUATION OF PROPERTIES OF MULTILAYER AND MULTICOMPONENT PVD COATINGS DEPOSITED ON THE CUTTING TOOLS PRODUCED BY POWDER METALLURGY
Keywords: PVD|layer|properties|AFM|Pin-on-disc|
No 1 (2012), p. 13-19, Vydáva eBooks
  mag02.pdf (694 kB)
mag02_eng.txt (1 kB)  

J. Brezinová, A. Guzanová, I. Mamuzić
STUDY OF WEAR RESISTANCE OF COATINGS DEPOSITED BY HIGH VELOCITY OXYGEN FUEL (HVOF) TECHNOLOGY
Keywords: HVOF spraying|HVOF coatings|adhesion|erosion|thermal loading|
No 1 (2012), p. 20-27
  mag03.pdf (417 kB)
mag03_eng.txt (1 kB)  

T. Borovský, J. Kijac, B. Buľko, M. Domovec, J. Havran
THE INFLUENCE OF SLAG COMPOSITION ON THE DISTRIBUTION OF MANGANESE BETWEEN SLAG AND METAL IN THE ELECTRIC ARC FURNACE
Keywords: manganese|steel|slag|electric arc furnace|
No 1 (2012), p. 28-33
  mag04.pdf (170 kB)
mag04_eng.txt (671 B)  

J. Pirošková, J. Trpčevská, B. Hlucháňová, M. Laubertová
FLUX SKIMMINGS ORIGINATED DURING HOT-DIP GALVANIZING PROCESS AND ITS HYDROMETALLURGICAL PROCESSING
Abstract
Flux skimming as the specific waste forms on the surface of molten zinc in a separate section kettle during the wet batch hot-dip galvanizing. After the certain hot dip galvanizing time flux becomes less effective and loses its function. It is hazardous waste containing a significant amount of zinc. This work deals with the hydrometallurgical processing of flux skimming. Flux skimming sample containing 36.9% of Zn was supplied by the Slovak company operating wet batch hot-dip galvanizing.
Flux skimming was hydrometallurgicaly processed by leaching in the distilled water in which the ratio of L:S (4:1, 6:1, 8:1, 10:1, 12:1) and the influence of temperature on zinc extractions at different temperatures, 20°C, 40°C, 60°C, 80°C, were investigated. According to the experimental results optimal L:S ratio and temperature were determined. Leaching of flux skimming in hydrochloric acid media was also carried out. Based on the results it is obvious that Zn leaching in hot water (60°C) proceed fast and the highest efficiency of Zn leaching was reached in the first 5 to 10 minutes. The flux skimming leaching in 0,2M HCl media appears not to have any measurable effect on efficiency of zinc leaching.

Keywords: flux skimming|hydrometallurgy|hot-dip galvanizing|
No 1 (2012), p. 34-39
  mag05.pdf (307 kB)
mag05_eng.txt (1 kB)  

M. Laciak, M. Durdán, J. Kačur
UTILIZATION OF INDIRECT MEASUREMENT IN THE ANNEALING PROCESS OF THE STEEL COILS
Keywords: annealing|indirect measurement|steel coil|mathematical model|
No 1 (2012), p. 40-49
  mag06.pdf (521 kB)
mag06_eng.txt (991 B)