Počet návštev: 82741862
AMS práve číta: 1




Ročník 2010 No 1

P. Gengeľ, A. Pribulová, P. Futáš
POSSIBILITIES OF FOUNDRY DUST UTILIZATION IN FOUNDRY PROCESS
Abstract
Dusts arise in almost every step of foundry processes. A huge amount of dust is generated by mould sand and core sand preparation. Composition of these dusts depends on used binder. The major compound in these dusts is SiO2 and when an organic binder is used it is carbon as well.
Melting processes are connected with formation of flue dust. Its composition depends on charge composition. Next melting furnaces are mainly used in foundry: cupola furnaces, electric arc furnaces and electric induction furnaces. Cupola furnaces are the biggest producer of flue dust from mentioned furnaces. Flue dust from cupola furnace is very fine-grained dust with a high content of SiO2 and Fe.
Also pouring, feetling, casts cleaning and grinding produce a high amounts of dust.
Seven kinds of dust from different parts of cast iron foundry were analysed. On the base of achieved results from chemical analyses, granulometric analyses and microscopic analyses three kinds of dusts were chosen for next purposes – preparation of sand mixtures and testing their technological properties.
On the base of technological properties results the non-magnetic part of dust from casts cleaning was used. By experiment, that had to determined scubs inclination on casts according to Patterson and Bönisch test.

K. s.: casting|recycling|granular materials|
No 1 (2010), p. 20-25
  mag03.pdf (889 kB)
mag03.txt (1 kB)  

D. Rodziňák, R.V. Zahradníček, P. Hvizdoš, D. Jakubeczyová
EFFECT OF NITRIDATION ON CONTACT FATIGUE AND WEAR DAMAGE OF ASTALOY CrL AND CrM STEELS
K. s.: Cr- sintered steels|Contact fatigue|Wear|Surface modification|
No 1 (2010), p. 12-19
  mag02.pdf (311 kB)
mag02.txt (2 kB)  

J. Bidulská, R. Kočiško, R. Bidulský, M. Actis Grande, T. Donič, M. Martikán
EFFECT OF SEVERE PLASTIC DEFORMATION ON THE POROSITY CHARACTERISTICS OF Al-Zn-Mg-Cu PM ALLOY
K. s.: aluminium alloy|SPD|ECAP-BP|FEM|porosity|
No 1 (2010), p. 4-11
  mag01.pdf (434 kB)
mag01.txt (2 kB)  

I. Kiss, T. Heput, V. G. Cioată
SOME INTERPRETATIVE RESEARCH IN THE AREA OF CAST IRON ROLLS QUALITY ASSURANCE
K. s.: iron|rolls|hardness|modeling|level curves|correlations|
No 1 (2010), p. 26-34
  mag04.pdf (878 kB)
mag04.txt (1 kB)  

I. Kiss
ABOUT THE DURABILITY IN EXPLOITATION OF THE CAST IRON HOT ROLLING MILL ROLLS IN FEW EXPERIMENTAL RESULTS
K. s.: rolling rolls|thermal cycles|thermal regimes|durability|experiments|
No 1 (2010), p. 35-41
  mag05.pdf (145 kB)
mag05.txt (2 kB)  

I. Kiss, T. Heput, V. Alexa
SOME APPROACHES REGARDING THE QUALITY ASSURANCE IN THE CAST-IRON ROLLS MANUFACTURING
K. s.: cast-iron|rolls|alloying|hardness|casting|technology|BSI Quality Assurance
No 1 (2010), p. 42-49
  mag06.pdf (162 kB)
mag06.txt (1 kB)  

J. Petrík, P. Palfy1, M. Havlík, L. Girmanová
THE OBSERVATIONS OF INDIRECT CALIBRATION OF MICROHARDNESS TESTERS
K. s.: Microscopy and Microanalysis Techniques|hardness test|microindentation|
No 1 (2010), p. 50-57
  mag07.pdf (85 kB)
mag07.txt (1 kB)  

M. Dziaková, I. Vasková, D. Fecko
INFLUENCE OF OPERATING FACTORS ON PROPERTIES OF FURAN MIXTURES
K. s.: casting|bonding|granular materials|
No 1 (2010), p. 58-63
  mag08.pdf (112 kB)
mag08.txt (1 kB)