Căutare Fascicula IX după Titlu
Afișează articolele 191-210 of 552
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Implications of Thermal and Thermo Chemical Treatments in Electrolytic Plasma on the Phasic Composition of Steels 40Cr10 and OLC 55
(Universitatea "Dunărea de Jos" din Galați, 2007)The X-ray diffraction researches allowed the identification of the phases present in the structure of steels 40Cr10 and OLC 55, treated thermally and thermal-chemically in electrolytic plasma and the calculation of ... -
Improved Hardness and Tribocorrosion Properties of Nickel Coatings By Co-Depositing ZrO2 Micro-Sized Dispersed Phase During Electroplating Process
(Universitatea "Dunărea de Jos" din Galați, 2006)The tribocorrosion properties of ZrO2 – nickel microstrucured composite coatings have been studied in the following conditions: -Solution: 0.5M K2SO4 -Tribo corrosimeter: pin on disc connected with electrochemical ... -
Improvement of Casting Technology by Using of Exothermic Feeder Head and Simulation the Solidification Alloy
(Universitatea "Dunărea de Jos" din Galați, 2012)This paper presents a simulation program use of feeders exothermic and insulating plates. High quality casting is considerably improved by using solidification simulation flow and cast. -
Improvement of Properties of Heavy Plates by Secondary Steelmaking Technologies and Rolling Conditions
(Universitatea "Dunărea de Jos" din Galați, 2013)In order to obtain the mechanical and technological characteristics required for controlled rolled plates it is necessary to realize a very low content of sulphur by desulphurized mixtures using CaO-Al2O3-CaF2 and injection ... -
Improvement of Steel Sheet Corrosion Resistance by Thermic Coverage Method with Zinc-Aluminium Alloys
(Universitatea "Dunărea de Jos" din Galați, 2007)The paper presents the main physico-chemical characteristics (viscosity and superficial tension of zinc-aluminium liquid alloy in view of carry out protected layers on steel sheet with very good properties by thermal ... -
Improving Biocompatibility of Co-Cr Alloy Used in Dentistry by Surface Modification with Electrochemical methods-Corrosion of Untreated Co-Cr Alloy in Solution with Different pH
(Universitatea 'Dunărea de Jos" din Galați, 2014)The use of metals and alloys in dentistry has seen remarkable progress due to the deep research on their biocompatibility or the application of advanced technologies to improve surface properties by controlling ... -
Improving of Functional Parameters for Pressure Casting Machine with High Degree of Finishing
(Universitatea "Dunărea de Jos" din Galați, 2009)The paper presents a mathematic model of static and dynamic characteristics for casting machine. This machine has a hydraulic action for the casting chamber (her closing and introducing of molten alloy). This action is ... -
Improving Slab Quality Through Control of Cooling Parameters in Continuous Casting Plants
(Universitatea "Dunărea de Jos" din Galaţi, 2014)Coupling the continuous casting installations with the rolling ones is a modern process that brings considerable economic benefits. During the continuous casting process of steel slabs, necessary technological conditions ... -
Increase of Converter Life by Own Slag Coating
(Universitatea "Dunărea de Jos" din Galați, 2012)This paper presents a method for the improvement of the lining life of the BOF converter by slag coating, under nitrogen pressure. Own slag coating of converter lining is put in practice after steel tapping. Dolomite ... -
Increase the Steels Purity cast in Vacuum
(Universitatea "Dunărea de Jos" din Galaţi, 2012)The need to develop products with special characteristics and high mechanical properties led to the introduction of plastic deformation of semifinished materials. Special purpose products are produced from slabs, ... -
Industrial Electron-Beam Equipment on Base of Noble and Non-Ferrous Metals
(Universitatea "Dunărea de Jos" din Galați, 2006)Method of obtaining of metals and alloys by melting – is basic. By this way make in practice the majority of metals, alloys and ligatures. The essence of a method is, that in special melting device (furnace) to melt metal ... -
Industrial Research in Thicker Heavy Plates (70-80 MM) HSLA Steel Micro-Alloyed with Mo-NB-Ti Thermo-Mechanical Control Process in ArcelorMittal Galati
(Universitatea "Dunărea de Jos" din Galați, 2016)Thermomechanical rolling (TMR or TMCP) is a special rolling process resulting in an extremely high-strength, fine-grained substructure which simultaneously offers very good toughness and cold formability. TM products ... -
Influence of Alloying Elements on Corrosion Resistance of Some Iron - based Sintered P/M Alloys
(Universitatea "Dunărea de Jos" din Galați, 2015)In this paper is described the influence of alloying elements on corrosion behavior of sintered iron parts. The compacts were sintered at 1,150 °C and the sintering time was 60 minutes. After microstructural studies, the ... -
Influence of Atmospheric Conditions on the Mechanical Properties of Pet Rubber Composites
(Universitatea "Dunărea de Jos" din Galați, 2005)The aim of paper is to study the influence of environmental open air conditions on the PET-rubber composites. Two set of samples (Type I, Type II) were obtained with the same composition, but the composites of Type I are ... -
Influence of Cooling Oil on the Surface Quality of the Roller Strip
(Universitatea "Dunărea de Jos" din Galaţi, 2014)The excess of emulsion used in the lamination process leads to the formation of drops which in the annealing process forms spots of burned emulsion. It was also shown to cause formation areas with high carbon concentrations ... -
Influence of Heat Treatment Technology on the Structure and Properties of Thick Sheet Steel ASTM14 Degree F
(Universitatea "Dunărea de Jos" din Galați, 2015)In this paper, based on the researches carried out a heat treatment technology can be determined which further lead to an optimum set of mechanical properties according to the technical conditions: A. Annealing (austenite ... -
Influence of Micro Glass Beads Added in PBT Matrix on the Mechanical Properties of Composites
(Universitatea "Dunărea de Jos" din Galaţi, 2012)This paper presents the influence of adding materials (micros glass spheres) in a matrix of PBT on several mechanical properties: elasticity modulus, stress at break , elongation at break, energy at break. The mechanical ... -
Influence of Niobium as Microalloying element in 3%Si Steel grade for Electrical Industry
(Universitatea "Dunărea de Jos" din Galaţi, 2012)The paper presents the results of the laboratory research on the chemical composition and crystallographic texture in 3% Si steels and their influence on the level of magnetic losses in the final sheet. The magnetic ... -
Influence of Normale Loads on Corrosion Behaviour of Ti-6Al-4V Alloy During Fretting in Artificial Saliva
(Universal "Dunărea de Jos" din Galați, 2012)The fretting corrosion behaviour of untreated Ti-6Al-4V alloy in artificial saliva solution was evaluated based on the change in open circuit potential (OCP) measured as a function of time. Fretting corrosion experiments ... -
Influence of Ph galvanic Baths on the Nickel Deposits
(Universitatea "Dunărea de Jos" din Galați, 2009)The influence of pH on cathodic and anodic current efficiency, surface quality and morphology of nickel deposit in the electrolyte solutions of the Watts bath type was investigated. Cathodic current efficiency of nickel ...
