2007 fascicula9 nr2
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Manufacture of Stud Link Chain Cable Made of Grade U1 and U2 Steel
(Universitatea "Dunărea de Jos" din Galați, 2007)We have analyzed the fabrication technology of the link chain cable made of grade U1 and U2 steel from TREFO S.A. Galati and we had in view during the experiments several rolling programs. The main characteristics of a ... -
Study of the Thermodynamic Regime at the Continuous Casting of Steel
(Universitatea "Dunărea de Jos" din Galați, 2007)The paper presents the evolution of the heat exchange coefficient along the path of the continuous casting unit, as a function of the cooling water flow rate and the path length. The optimization of this thermodynamic ... -
Multifunctional ZnO-Based thin Films by SOL-GEL Method
(Universitatea "Dunărea de Jos" din Galați, 2007)The paper presents the crystalline structure, morphology, optical transmittance, electrical properties and room temperature photoreduction-ozone oxidation properties of some Al-doped ZnO thin films prepared by sol-gel ... -
Studies About Electrochemical Plating with Zinc-Nickel Alloys
(Universitatea "Dunărea de Jos" din Galați, 2007)The electrochemical deposition of zinc and combinations with elements of the 8th group of the Periodic System (nickel, cobalt, iron) have good properties for anticorrosive protection, compare with pure zinc. For steel ... -
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 ... -
Intermetalic Copper Phase Characteristics and Links with the Gold Sphere in Alumina Cover Sheets
(Universitatea "Dunărea de Jos" din Galați, 2007)The time period in which the intermetalic sheet cover is developed into the gold sphere in alumina is fully known being relatively not much literature regarding the morphology ant intermetalic phases growth in the copper ... -
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, ... -
Analysis of Steructural Components Exiting in Steel Making Slag Sampled from Steel Making-Continuous casting Flow Sheet
(Universitatea "Dunărea de Jos" din Galați, 2007)Hereby paper work aims to identify and analyze the structural constituents from the steel making shop slag. Therefore, slag specimens sampled from different stages of steel making-continuous casting flow sheet in Mittal ... -
Behaviour at Nitriding in Fluidized Layer of Austenitic Stainless Steels at the Temperature
(Universitatea "Dunărea de Jos" din Galați, 2007)Nitriding at low temperatures, 450-500oC of austenic stainless steels lead to the obtaining of the tough layers over 1000 HV005 but having thicknesses of tenths of microns. Moreover, nitriding at 500ºC has determined the ... -
Studies Concerning Energetic Consumption of Some Heating Equipments with Resistors
(Universitatea "Dunărea de Jos" din Galați, 2007)In order to increase the resistance of aluminium alloys a complex heat treatment is usually performed. Therefore, we must consider the reaction time between aluminium alloys and furnace atmosphera. These atmospheres ... -
The Action of the Ultrasonic Vibration Over the Diffusion Process in Gases and Liquids
(Universitatea "Dunărea de Jos" din Galați, 2007)Among the new method of studying the properties of the substance and the influence over the most various physical and chemical processes, used in different industrial domains, the main place is occupied by the usage of ... -
The Monitoring of Chattering in Cold Rolling Mill System with Stands for Thin Strip
(Universitatea "Dunărea de Jos" din Galați, 2007)Each system (stand – driving) and the continuous rolling line to which it belongs have its own functional and energetically parameters. To reduce any faults of the strip surface it is also necessary to check (eventually ... -
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 ... -
Study of Heat Treatment Influence on Aluminum-Based Alloy ATN-Si10Cu4
(Universitatea "Dunărea de Jos" din Galați, 2007)This work presents the experimental results concerning the behavior on heat treatment of on aluminum based alloy. The laboratory level experiments achieved on samples of ATN-Si10Cu4 (4145 series) alloy illustrate the ... -
Hydrogen production by Steam reforming of Renewable Raw Materials
(Universitatea "Dunărea de Jos" din Galați, 2007)The paper is based on study of steam reforming of renewable raw materials (bioethanol, biomethane) in stainless steel fixed bed reactor. The β-alumina catalysts with nickel has been synthesized and tested supported. The ... -
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 ... -
Study and Researche Regarding Binaring Sistem with TIOBIS - β – NAFTOL
(Universitatea "Dunărea de Jos" din Galați, 2007)This paper presents the results for contribution of determining the manganese from waters and steel. Manganese, due to its properties, cannot be found but in acid waters and usually associated with iron. In small amounts, ... -
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 ... -
Prediction of Buckling and Postbuckling Behaviour of Composite Ship Panels
(Universitatea "Dunărea de Jos" din Galați, 2007)The behavior of ship plating normally depends on a variety of influential factors, namely geometric/material properties, loading characteristics, initial imperfections, boundary conditions and deterioration arising from ... -
Electric and Electromagnetic Properties of Fiber Fabric Based Filled Epoxy Composites
(Universitatea "Dunărea de Jos" din Galați, 2007)Electric and magnetic properties of laminate fiber fabric based epoxy composites are investigated through experimental techniques. Various concentrations of powder fillers were used in order to change the basic properties ...
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