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Afișează articolele 2195-2214 of 2993

    • Research on the Influence of the Complementary Phase Percentange on the Properties of Copper-Based Composites 

      Boiciuc, Simona; Alexandru, Petrică (Universitatea "Dunărea de Jos" din Galaţi, 2014)
      The article presents the method to obtain copper matrix composite with Cu- Al-Fe alloy particles as complementary phase. The samples were obtained by powder metallurgy methods using different percentages of complementary ...

    • Research on the Operation of Commercial Vessels with Compressed Air 

      Dragomir, Ștefan; Bordei, Marian (Universitatea "Dunărea de Jos" din Galați, 2016)
      Regarding the reduction of the carbon dioxide emissions in the atmosphere, this paper is going to present a system of propulsion with compressed air used for medium-sized commercial vessels. In the transport domain, ...

    • Research on the Production of Sintered Powder 316 

      Boiciuc, Simona; Potecașu, Florentina (Universitatea "Dunărea de Jos" din Galați, 2012)
      The 316 austenitic stainless steel powders are typically used in applications requiring good corrosion resistance, mechanical strength at high and very low temperatures, good ductility, wear resistance, associated in ...

    • Research on the Work Place Security and Environmental Factors Affected by Lathe Work 

      Dragomir, Georgeta; Bordei, Marian; Dragomir, Ştefan (Universitatea "Dunărea de Jos" din Galaţi, 2014)
      Most work place risks are spatially and temporally determined, so a critical early need is to establish the risk of what (is happening) to whom (which part of the environment is affected), where (location) and when (in ...

    • Research Rearding of Composite Materials under the Influence of Abrasive Wear 

      Florea, Carmen; Florea, Alexandru; Chivu, Mioara (Universitatea ”Dunărea de Jos” din Galați, 2008)
      The method described in the paper will allow estimating the composite materials performances with different structures and various working conditions, with a view to estimate useful life of technological equipments parts ...

    • Research Regarding on Work Safety in Making Steel at LD Converted 

      Tudor, Beatrice (Universitatea "Dunărea de Jos" din Galați, 2013)
      This paper presents the tasks and work environment of workers working at the LD converter. Risk factors identified and assessed and suitable measures for reducing or eliminating them, resulting a safer environment for ...

    • Research Regarding the Investigation of Steel Hardness 

      Picu, Mihaela (Universitatea "Dunărea de Jos" din Galați, 2004)
      Mobile hardness testing is on the advance: in these times of cost pressures and higher quality requirements there is a quick and economical supplement to stationary hardness testing in the modern production process. The ...

    • Research Regarding the Possibility of Obtaining Nitinol by Powder Metallurgy 

      Potecaşu, Octavian; Potecaşu, Florentina; Alexandru, Petrică; Braz Fernandes, Francesco Manuel; Cordeiro Silva, Rui Jorge; Figueiredo Pereira Das Neves, Filipe Carlos (Universitatea "Dunărea de Jos" din Galaţi, 2012)
      In the paper the obtaining of nitinol by pressing and sintering of a mixture of nickel and titanium powders is presented. The fabrication of NiTi alloys by powder metallurgy allows avoiding the usual problems related to ...

    • Research Regarding the Wear Level for a new Constructive Solution of a Cutting Tool 

      Popescu, Liliana Georgeta (Universitatea "Dunărea de Jos" din Galați, 2014)
      The paper presents a study of wear made to implement a constructive solution for a new cutting tool. The design of the cutting tool can be checked from a functional perspective, as well as reliability during the cutting ...

    • Research Regarding Work safety in the Loading Zone Furnace 

      Dragomir, Ștefan; Bordei, Marian; Drăgan, Viorel (Universitatea "Dunărea de Jos" din Galați, 2013)
      The loading zone furnace is the place where we find work belt conveyors, vibrating screens and feeders, 5-ton hoist, cyclone, scale hoppers, troughs for routing and carriage of waste materials. The work consists in ...

    • Researches Concerning Phase Transition of Zirconium Titanate Prepared by Electrolytic Method 

      Gheorghieș, Livia (Universitatea "Dunărea de Jos" din Galați, 2006)
      Powder zirconium titanate ceramics obtained by an electrolytic method has been investigated. Continuous phase transition were found to occur in powder zirconium titanate above and below a major discontinuity at 1120oC±10oC. ...

    • Researches Concerning the Correlation of the Semiplanetary Rolling Process Factors 

      Cănănău, Nicolae; Alexandru, Petrică; Gurău, Gheorghe; Preda, Adriana (Universitatea "Dunărea de Jos" din Galați, 2005)
      An available solution of the elimination of the superficial cracks network at the continuous cast slabs is the semiplanetary rolling. The application of a semiplanetary rolling mill at the exit of slab from the curve zone ...

    • Researches Concerning the Deformation Behaviour of a Low Carbon Steel 

      Cănănău, Nicolae; Alexandru, Petrică; Gurău, Gheorghe; Ionel, Petrea (Universitatea "Dunărea de Jos" din Galaţi, 2008)
      The paper shows the results of the researches meant to establish the equation of deformation behavior of low carbon steel. The behavior law is established by the experimental way, using the torsion test method. The ...

    • A Researches for the Determination of the ATC Si10Mg Alloy Fatigue Life, function of Different Applied Thermal Treatment Cycles 

      Dima, Adrian; Minea, Alina Adriana; Dima, Iulia-Margareta (Universitatea "Dunărea de Jos" din Galați, 2005)
      The experimental researches which were made, emphasized the opportunity of applying heat treatment cycles, in order to increase fatigue life of ATC Si 10 Mg alloy. The increase of minimum fatigue resistance is approximately ...

    • Researches of Distribution of Loading on Coils of Running Pair of the Latch 

      Dzhanakhmedov, Akhad Kh. (Universitatea ”Dunărea de Jos” din Galați, 2006)
      This paper gives the calculation procedure of pressure distribution on coils of running pair of latch at various loading schemes. Recommendations are provided for the choice of loading schemes of running pair, which ensure ...

    • Researches on the Acoustic Treatments with Composite Materials Panels at the Frontal Loader MMT45 

      Drăgan, Nicușor (Universitatea "Dunărea de Jos" din Galați, 2012)
      The article presents the problem of the testing of some protective systems made of PU foam based composite materials which can simultaneously meet the following requirements: noise absorption for middle and high range ...

    • Researches on the Corrosion Behavior for a Drawing Steel That Went Through Natural Ageing 

      Potecașu, Florentina; Potecașu, octavian; Ioniță, Elena; Ciubotariu, Alina (Universitatea "Dunărea de Jos" din Galați, 2009)
      The paper presents the results of a study on the corrosion behaviour of the sheets of drawing steel with 0,04% C gone through natural ageing and run for a period of 112 days from the moment of drawing. The researches ...

    • Researches on the Pollution of Underground Waters in a Certain Part of Galati District 

      Vlad, Maria (Universitatea "Dunărea de Jos" din Galați, 2007)
      The paper underlines the importance of monitoring the quality of the underground waters and presents the experimental results as regards the pollution of underground waters in a certain part of Galati district. The final ...

    • Researches on the Presence of Hydrogen During Continuous Casting of Steel 

      Teletin, Claudiu; Crudu, Ion; Spânu, Constantin (Universitatea ”Dunărea de Jos” din Galați, 2009)
      Due to the negative effects that hydrogen has on steels, its content in steels has lately been given special attention. The paper presents the evolution of hydrogen content in steel during the manufacturing and continuous ...

    • Researches on the Viscoplastic Behavior of a CrMo Alloyed Steel 

      Cănănău, N.; Alexandru, P.; Gurău, L.; Gurău, G. (Universitatea "Dunărea de Jos" din Galați, 2009)
      The paper shows the results of the researches concerning the deformation behavior of alloyed steel with chromium and molybdenum. The plastic deformation behavior is researched in the experimental way, using the torsion ...