Visits: 82692966
AMS now reading: 1




Year 2006 No 3

Fujda M., Longauerová M.
MORPHOLOGY OF FINE SURFACE CRACKS ON LOW CARBON STEEL CC SLAB ENRICHED BY COPPER
Keywords: fine branched cracks|CC slab|surface zone|Cu-base phase|penetration|primary grain boundaries|
No 3 (2006), p. 243-249
  mag01.pdf (791 kB)
mag01_eng.txt (2 kB)  

Sojka J., Váňová P., Jonšta P., Rytířová L., Krol S., Jerome M.
MICROSTRUCTURAL ASPECTS OF SULPHIDE STRESS CRACKING OF DUPLEX STAINLESS STEELS
Keywords: duplex stainless steels|sulphide stress cracking|hydrogen induced cracking|microstructure|
No 3 (2006), p. 250-256
  mag02.pdf (731 kB)
mag02_eng.txt (2 kB)  

Besterci M., Sülleiová K., Kvačkaj T.
VERIFICATION OF HALL-PETCH EQUATION OF NANOCRYSTALLINE COPPER
Keywords: ECAP|Cu|nanoštruktúrne materiály|konvenčná medza sklzu|mikroštruktúrne parametre|
No 3 (2006), p. 257-263
  mag03.pdf (439 kB)
mag03_eng.txt (2 kB)  

Visuttipitukul P., Paa-rai C., Kuwahara H.
CHARACTERIZATION OF PLASMA NITRIDED AISI H13 TOOL STEEL
Keywords: Plasma nitriding|H13 steel|Chromium nitride|Precipitate|
No 3 (2006), p. 264-274
  mag04.pdf (1 MB)
mag04_eng.txt (2 kB)  

Pavolová H., Bakalár T., Kyseľová K.
EFFICIENCY OF COPPER REMOVAL FROM WASTEWATER USING SELECTED ADSORBENTS
Abstact
The basic experiments were realised for possibility of copper removal from wastewater using non-traditional adsorbents, which are less costly. A large number of low-cost adsorbents for heavy metal ions removal is available. Kinetics of adsorption onto small particles of about 1 mm is relatively slow. Kinetics may be increased by using smaller particles that leads to greater pressure loss in the adsorption bed.
Adsorption is autonomic increase of the concentration of some matter on the interface of phases. Adsorption is realised on fluctuant (liquid) or solid interface of phases. Fluctuant interface of phases is created with contact of two non-mixing liquid phases. Solid interface of phases is created with contact of solid phase and liquid phase that can be gas, steam or fluid. Adsorption onto fluctuant interface of phases is used less in practise than adsorption onto solid interface of phases.
On the heterogeneous interface of phases the surface of solid interface (adsorbent) energetically actively influences the entities (molecules, atoms, ions) of the surrounding liquid phase (adsorptive). According to the nature of forces impacting between the entities of the adsorbent and the adsorptive there are two utmost adsorption types: physical adsorption and chemisorption, whilst the intermediate type is ion adsorption (electroadsorption).
The following adsorbents of heavy metals were tested:
* Chitosan, deacetylated form of chitin, which can be found in crustacean shells, made by Apollo, Quindao, China, with degree of swelling 194,6 weight % in water at pH = 6,0.
* Lewatit S100, a synthetic ionexchanger made by Bayer AG, Germany, with degree of swelling 133,3 hm. % in water at pH = 6,0.
* Synthetic zeolite, prepared by zeolitisation of fly ash.

Keywords: adsorption|heavy metal|chitosan|Lewatit|zeolite|
No 3 (2006), p. 275-281
  mag05.pdf (347 kB)
mag05_eng.txt (2 kB)  

Žilková J., Timko J.
NEURAL MODELLING OF A TINNING LINE’S TECHNOLOGICAL PART
Keywords: estimation|modelling|tinning line|DC motor|artificial neural network|cascade network|feedforward network|
No 3 (2006), p. 282-290
  mag06.pdf (278 kB)
mag06_eng.txt (2 kB)  

Šabíková M., Kucková A.J., Fröhlichová M., Petíkova I.
STUDIES ON DISTRIBUTION OF MACERALS AND THE COAL TYPES WITHIN THE COLLECTIVE GROUND COAL CHARGE
Keywords: coal charge|types coal|maceral groups|size of coal|grinding of coal|
No 3 (2006), p. 291-298
  mag07.pdf (268 kB)
mag07_eng.txt (1 kB)  

Fabián M., Baláž P., Godočíková E.
SELECTED IDENTIFICATION METHODS IN ANALYSIS OF NANOCRYSTALLINE MATERIALS
Keywords: STM|AFM|TEM|HRTEM|nanoscience|nanoparticles|
No 3 (2006), p. 299-308
  mag08.pdf (1 MB)
mag08_eng.txt (2 kB)  

Bidulský R., Actis-Grande M.
THE CHOICE OF METAL POWDER FOR MIM
Keywords: powder metallurgy|metal injection moulding|metallic powder|
No 3 (2006), p. 309-313
  mag09.pdf (246 kB)
mag09_eng.txt (2 kB)  

Gajdzik B.
COMPONENTS OF CORPORATE IDENTITY OF METALLURGICAL COMPANIES
Keywords: image of metallurgical company|corporate identity system|components of identity|logo|colours|advertising slogans|occasional prints|business car|
No 3 (2006), p. 314-318
  mag10.pdf (197 kB)
mag10_eng.txt (1 kB)  

Sütőová A., Molnár Ľ.
ENVIRONMENTAL PERFROMANCE EVALUATION OF ORGANIZATIONS AS A TOOL OF ENVIRONMENTAL MANAGEMENT SYSTEM
Keywords: environmental performance evaluation|environmental aspects|environmental indicators|
No 3 (2006), p. 319-327
  mag11.pdf (274 kB)
mag11_eng.txt (1 kB)