HEAVY ION SECONDARY BEAMS

The possibility of producing secondary beams of radioactive nuclei is an interesting application of medium and high energy heavy ion beams. After a first attempt at CERN (1) , two experiments have been performed at GANIL, using 44 MeV/u 40Ar (2) and 65 MeV/u 180 projectiles. This paper recalls the results of the Ar experiment, and presents new data obtained with the 180 beam

Rationalization of a Core Warehouse in the Casting Plant: A Case Study

The warehouse is an important factor in the manufacturing process. At present, there are constant demands for the more efficient and effective operation of warehouse systems. For this reason, the rationalization of existing warehouses and/or storage systems is one of the ways to achieve the previously set targets. The possibilities of rationalization are numerous in all segments of the observed system. The most suitable solutions for a particular warehouse will be found based on the nature of the observed problem and the available investment funds. The paper defines the place and the role of the warehouse in a casting plant. Besides, the current situation in the warehouse segment of casting plants is analyzed to identify problems. Finally, the development of different concepts of rationalization to relevant constraints is discussed. This approach has enabled us to solve the problem of the rationalization task and to produce the desired effects

Improving the microstructure and mechanical properties of EN AC 43200 cast aluminum alloy modified with zirconium

Abstract: The paper deals with the influence of molybdenum, zirconia and cobalt on the AlSi10Mg (Cu) alloy microstructure. The work methodology was focused on the analysis of phases morphology for material alloyed with Mo, Zr and Co. Molybdenum in the AlSi10MgCu alloy creates phases with skeletal morphology bounded on iron phases Al(Fe, Mn, Mo)Si. Used heat treatment has softened these phases and is a prerequisite for increasing the strength characteristics and hardness. By alloying the alloy with zirconium to isolate Al3Zr phases, which represent a strong nucleation potential for α-Al. It has been confirmed that Al3Zr particles do not tend to interact with other elements. The results of experiments show that cobalt affects the morphology of iron phases. The findings of this study can provide further insight into the transition metals in Al-Si-Mg-Cu alloys and the potential for developing a new generation of heat-resistant alloys based on Al-Si

Virtuelna optimizacija tehnoloških parametara livenja kučišta pumpe

S. Manasijevic, R. Radisa, V. Kvrgić, S. Markovic; Virtuelna optimizacija tehnoloških parametara livenja kučišta pumpe, LIVARSTV

Virtual castings for the optimization of technological casting parameters of the pump housing

Virtual castings for the optimization of technological casting parameters of the pump housing, 44rd International octobar conference on Mining and Metallurgy, Proceeding

Determination some thermo-physical and metallurgical properties of aluminum alloys using their known chemical composition

Simulation is currently routinely applied in many aluminum foundries as a standard tool. The accuracy of casting simulation depends to a large extent on the quality of the available physical and thermo-physical properties of the material provided by the software’s database. The available databases presently used in commercial simulation software packages for the casting industry are usually equipped with material properties only for a few selected standard alloys. This paper offers an alternative approach that could be used to determine some required thermo-physical and structural properties for the simulation of cast aluminum alloys. The approach is based on the silicon equivalency procedure which numerically expresses the impact of all alloying elements through the equivalent content of silicon. This paper illustrates the applicability of this approach for cast Al–Si series of alloys

PRIMENA NUMERIČKE SIMULACIJE U UNEPREĐENJU PROCESA LIVENJA FLOTACIJSKIH KUGLI KOJE SE KORISTE U RUDARSKOJ INDUSTRIJI

U radu je prikazano unapredjenje procesa livenja flotacijskih kugli bazirano na primeni numeričke simulacije - savremenih softverskih sistema za optimizaciju i upravljanje parametrima procesa livenja. Koncept obuhvata virtuelnu proizvodnju, praktičnu realizaciju tehnološkog procesa korišdenjem unapredjene verzije alata za livenje i konačnu proveru kvaliteta odlivaka - flotacijskih kugli. Primenom metodologije prikazane u radu skraduje se vreme razvoja novog proizvoda i njegove prozivodnje u odnosu na tradicionalne metode testiranja putem pokušaja i pogreški

Analysis of the intermetallic bonding between ring carrier and aluminum piston alloy

Analysis of the intermetallic bonding between ring carrier and aluminum piston alloy, Metallurgical & Materials Engineering Congress of South-East Europ