Căutare Fascicula IX după Titlu
Afișează articolele 388-407 of 552
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Semi-Planetary Rolling and Changes of Fine Structure and Microstructure
(Universitatea "Dunărea de Jos" din Galați, 2007)The strain intensity in the proximity of planetary cylinder, in the case of semi-planetary rolling is greater than in the proximity of the massive cylinder. This fact leads at the variation of the microstructure and fine ... -
Setting the Optimum Angle of Solar Collectors Settlement
(Universitatea "Dunărea de Jos" din Galați, 2013)The performance of any solar energy system depends very much on the availability of solar radiation and the orientation of solar collectors. Solar collectors need to be inclined at the optimum angle to maximize the ... -
Severe Plastic Deformation an Advanced Method for Nanostructuring Shape Memory Alloys
(Universitatea "Dunărea de Jos" din Galați, 2007)Severe plastic deformation (SPD) is an advanced plastic deformation. In this process nanostructuring metals and alloys may be produced. Nanostructured shape memory alloys are associate with a very high strength, toughness, ... -
Severe Plastic Deformed Pure Aluminum by Equal Channel Angular Pressing
(Universitatea "Dunărea de Jos" din Galați, 2009)Samples of an aluminum alloy were subjected to an equal channel angular pressing (ECAP) at room temperature for one pass. For the several specimens severe plastic deformation process was interrupted to observe the material ... -
Siderurgy Slags Recovery in Building Industry
(Universitatea "Dunărea de Jos" din Galați, 2014)During the metallurgical processes of iron and steel elaboration, besides the basic products, it results a serious of secondary products (wastes) in high quantities but with a high recycle – recovery potential, and their ... -
Silica thin Films Obtaining by Sol-Gel Dip Coating with Controlled Optical Properties
(Universitatea "Dunărea de Jos" din Galați, 2014)Transparent oxide films are widely employed as antireflection or high reflection coatings, band-pass filters and narrow-band-filters in various optical and electronic devices. The performances of these devices are based ... -
Software used at Castings Production
(Universitatea "Dunărea de Jos" din Galați, 2009)The foundry industry has been developed worldwide, a number of software that can assist the design work and various processes in the production of castings. Current usage of such software by metallurgical engineers is ... -
Soil Pollution with Heavy Metals
(Universitatea "Dunărea de Jos" din Galați, 2010)In this paper was studied soil pollution with heavy metals (copper, chrome, manganese, lead, zinc, cadmium, nickel) caused by the municipal waste from landfill. The level of soil pollution depends on rain regime which ... -
Solutions for Diagnosing Faults in an Asynchronous Motor Stator Through a Ferrofluid Installation
(Universitatea "Dunărea de Jos" din Galați, 2015) -
Some Aspects About the Refractory Lining Wear in Furnaces
(Universitatea "Dunărea de Jos' din Galați, 2007)For melting cast iron, carbon steel, copper and copper alloys the quartzite is still one of the most used lining material and the most cost effective as well. The silica lining has to be replaced frequently due to the ... -
Some Aspects Regarding the Elaboration of Multiple precessional Gear Theory and Modern Manufacturing Technology
(Universitatea "Dunărea de Jos" din Galați, 2006)The engineering complex study of the triad “gear-technology-transmission” has permitted to elaborate a new type of precessional transmissions with multicouple gear. In this paper, the authors present the mathematic model ... -
Some Aspects Regarding the Influence of Tribologycal Factors on the Superficial Layers of Steels Treated with Plasma Nitriding
(Universitatea "Dunărea de Jos" din Galați, 2012)Some 38MoCrAl09 (SAE 4038) steel grade samples were subjected to plasma nitriding treatment regimes. The structural and diffractometric aspects of the superficial layers of the steel are studied after the wear tests by ... -
Some Issues Concerning Gear Wheels Fabrication by Sintering
(Universitatea "Dunărea de Jos" din Galați, 2006)Powder metallurgy appeared in the XVIII century as result of industrial market demand for electric bulbs filaments made of wolfram. Nowadays powder metallurgy is applied in such fields as: automotive industry (cylindrical ... -
Some Issues Concerning Gear Wheels Fabrication by Sintering
(Universitatea "Dunărea de Jos" din Galați, 2006)Powder metallurgy appeared in the XVIII century as result of industrial market demand for electric bulbs filaments made of wolfram. Nowadays powder metallurgy is applied in such fields as: automotive industry (cylindrical ... -
Some Results of Researches to Develop the Proper Recycling Methods of Technological Residues from Secondary Aluminum Industry
(Universitatea "Dunărea de Jos" din Galați, 2007)The objective of the research is to identify new suitable process to use residual waste (like aluminium secondary dross, salt slag or fly ashes) in concrete products according with sustainable industry concepts. The paper ... -
Sources of Emissions in the Sintering and Blast Furnace Plant
(Universitatea "Dunărea de Jos" din Galați, 2010)The main technological operations for producing the sinter used for preparing the hot metal in the furnace are: preparation and transport of raw materials used for producing the sinter (transport, storage, crushing, ... -
Static Ananysis of the Structure Type Tank Thermally
(Universitatea "Dunărea de Jos" din Galați, 2013)This paper consider finite element analysis for structural analysis of a tank under thermal loadings. Geometric modeling is done in CATIA and for finite element analysis the author used FEA module in Catia. The aim is ... -
Static and Dynamic Analysis of Stress and Deformations of Răstolița Dam
(Universitatea "Dunărea de Jos" din Galați, 2016)Large Dams are a particularly important case of seismic risk assessment. On the one hand, the dams themselves have a high value, having implications for the whole economy, through the production of electricity, water ... -
Statistical Correlations Between Chemical Composition and Mechanical Properties of A516 Grade 65 Steel
(Universitatea "Dunărea de Jos" din Galați, 2016)In order to respond to required demands associated to certain operation conditions, the steels used in petroleum, petrochemical and chemical processing industries must have significant improved mechanical properties. ... -
Steel and Refractory Chemical Interactions and Mechanical Behavior of Plates for Sliding Gate During Steel Continuous Casting
(Universitatea "Dunărea de Jos" din Galaţi, 2008)The main objective to increase CC productivity as well as steel quality by using optimized refractory from ladle-tundish-to-mold lead to techniques that allow the prediction of steel and refractory chemical interactions ...
