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Influence Pressure and Size Particle to Extraction by CO2
(Universitatea "Dunărea de Jos" din Galaţi, 2008)
Supercritical fluid extraction (SFE) is an efficient extraction technique for the
separation of various organic compounds from herbs, or more generally, from plant
materials. These proporties of SFE make the products ...
Hydrodynamic Aspects on EAF's Smelt Metallic Mirror
(Universitatea "Dunărea de Jos" din Galaţi, 2008)
Using the Physical and Mathematical knowledge, a new approach to EAF bath’s
hydrodynamic aspects is proposed to be developed in this paper. Experimental
results and a mathematical equation package have been concluded ...
The Influence of Cold Rolling on the Mechanical Characteristics for Drawing Steels
(Universitatea "Dunărea de Jos" din Galaţi, 2008)
The paper presents the changes of the mechanical and technological
characteristics of steel for deep drawing, cold rolled and recrystallization heat
treated. The research was conducted on samples taken from cold rolled ...
Tribological Behaviour of Nitrocarburized Steels After Thermo-Magnetic Treatments
(Universitatea "Dunărea de Jos" din Galaţi, 2008)
Two types of steels were subjected to a nitro-carburized thermo-chemical
treatment after thermo-magnetic treatments. The structural aspects into the
superficial layer of these steels are studied during the friction process ...
Automatic Settlement System of Liquid Steel Level Into the Tundish for Continuous Casting Machine
(Universitatea "Dunărea de Jos" din Galaţi, 2008)
The increasing quality of steel and a reliability indices of the afferent
installations need an automation system for continuous steel casting machines. This
paper presents an original solution of automatic settlement ...
Influence of the Chemical Composition on the Behavior of Austenitic Stainless Steel in Fliid Layer Nitriding Process
(Universitatea "Dunărea de Jos" din Galaţi, 2008)
The main factors that influence the stainless steel behavior to the nitriding
process are: chemical composition, nitriding temperature, treatment time.
Researches have revealed that, with low temperature nitriding, the ...
Surface Hardenining for 38MoCrA109 Steel Using Fluidized Bed Nitriding
(Universitatea "Dunărea de Jos" din Galaţi, 2008)
The paper is based an nitriding experiments made in a fluidized bed laboratory
furnace. Fluidization was obtained in a steel refractory retort by solid granular
(burned fire clay) and fluid (mixture of ammonia and ...
Mechanical Resistance on Cold Welding Achievement Between Cogged Sufaces
(Universitatea "Dunărea de Jos" din Galaţi, 2008)
Cold welding on cogged surfaces is a technology developed by researchers from
Robotics and Welding Department, Dunarea de Jos University of Galati. Easily
deformable samples, having plane surfaces, are pressed on cogged ...
On the Prediction of the Strip Shape in a Cold Rolling Mill (1700 mm)
(Universitatea "Dunărea de Jos" din Galaţi, 2008)
In this paper is shown a new way for predicting the precision of laminated strip
in a cold rolling mill (1700 mm). The increasing demands on the quality of rolled
strip; need new technology for monitoring the strip shape, ...
Evolution of some Structural Fine Parameter in the Superficial Layer During Low Cycle Fatigue Process
(Universitatea "Dunărea de Jos" din Galaţi, 2008)
Using laminate samples, investigations have been realized at variable
solicitation of pure bending on a patented machine. The machine has two working
places and it can be adjusted for different deformations, frequencies ...