Browsing 2006 fascicula9 nr2 by Issue Date

Now showing items 21-26 of 26

    • Some Issues Concerning Gear Wheels Fabrication by Sintering 

      Olevschi, Alexandru (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 ...

    • Studies Regarding the Cooling of the Rolled Pieces With Atomizing Water 

      Ciurea, Aurel; Bordei, Marian; Ciurea, Aurel; Bordei, Marian; Dragomir, Ștefan (Universitatea "Dunărea de Jos" din Galați, 2006)
      The diversity of metallurgical materials and processes imposes a large scale of cooling speeds. The classical cooling mediums restrict the scale of the cooling speeds, reason for which nonconventional alternatives were ...

    • Behavior of 1%Cr Steels at Fluidized Bed Nitrocarburizing 

      Dobrovici, Sorin; Cazacu, Nelu; Bâclea, Adolf; Drugescu, Elena; Preda, Nelu (Universitatea "Dunărea de Jos" din Galați, 2006)
      Paper is based by nitrocarburizing experiments made on laboratory plant. For experiments were used different samples of steel at different nitrocarburizing regimes. Influence factors were: temperature and ammonia ...

    • Air Quality Monitoring in Galați. Case Study 

      Balint, Lucica; Rîpă, Minodora; Balint, Simion Ioan; Niță, Petre Stelian; Năstase, Gina (Universitatea "Dunărea de Jos" din Galați, 2006)
      This paper presents information referring to the variation of aerosols concentration in a central area in Galati. For a period of time of november2005 to november 2006, there have been made correlations between aerosols ...

    • Hardened Aluminium with Discontinuous Copper Threads 

      Potecașu, octavian; Potecașu, Florentina; Alexandru, Petrică (Universitatea "Dunărea de Jos" din Galați, 2006)
      The paper presents the influence of the quantity of discontinuous reinforced threads on the mechanical characteristics of some samples obtained through deformation from composite material with metallic matrix. As a raw ...

    • Behavior of Welded Joints from Some Stainless Austenite Steel Eypes During Nitriding Process 

      Dima, Ovidiu (Universitatea "Dunărea de Jos" din Galați, 2006)
      Researches made on welded and nitrided samples from stainless austenite steel types show that nitriding thermo chemical treatment can be applied also for welded joints. As a result of the treatment, a diffusion layer ...