http://arthra.ugal.ro/handle/20.500.14043/25875 Sun, 12 Apr 2026 02:04:01 GMT 2026-04-12T02:04:01Z http://arthra.ugal.ro/handle/20.500.14043/25897 Researches Concerning the Correlation of the Semiplanetary Rolling Process Factors Cănănău, Nicolae; Alexandru, Petrică; Gurău, Gheorghe; Preda, Adriana 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 of the continuous casting machine leads at the slab unbending. For real constructive conditions of the geometry of casting machine, the establishing of the factors of semiplanetary rolling process, is necessary. The researches showed in this paper, worked at a lab semiplanetary mill, demonstrate that the bending of the linear body or the unbending of the curve body is possible. At the same time is establishing a correlation between the geometrical factors of body and the semiplanetary rolling factor – the relative reduction of thickness. The Annals of "Dunarea de Jos" University of Galati Fascicle IX Metallurgy and Materials Science ISSN 1453 – 083X. N0. 1 – 2006 Sat, 01 Jan 2005 00:00:00 GMT http://arthra.ugal.ro/handle/20.500.14043/25897 2005-01-01T00:00:00Z http://arthra.ugal.ro/handle/20.500.14043/25896 Researches Regardingbthe Thermomechanical Treatments Influence on the Structure and Characteristics of the Aluminium Alloys for Aeronautics Vasilescu, Elisabeta; Doniga, Ana The laboratory experiments were made on the two aluminium alloyed qualities used for aeronautical industry. More working conditions of the intermediary (PTMI) and finally (PTMF) thermomechanical treatments were used on the industrial rolled test-specimen. Also, the conventional thermal treatment was used, consisting of the solution quenching and artificial heat ageing, mode in more working condition, test. The structure and mechanical characteristics were analyzed and the gotten results were compared using those two types of the thermal and thermomechanical treatments. A significantly improvement of the mechanical characteristics was ascertained to the thermomechanical treated test-specimen. The Annals of "Dunarea de Jos" University of Galati Fascicle IX Metallurgy and Materials Science ISSN 1453 – 083X. NR 2 – 2005 Sat, 01 Jan 2005 00:00:00 GMT http://arthra.ugal.ro/handle/20.500.14043/25896 2005-01-01T00:00:00Z http://arthra.ugal.ro/handle/20.500.14043/25895 The Use of Systems Analysis in Environmental Engineering Paraschiv, Spiru; Paraschiv, Lizica Simona; Ion, Ion V. The depletion of energy resources has been of primary concern in the `70s and `80s. In recent years, the decline of the environment due primarily to our energy-related activities has become severe and raises serious concern too. For this reason, method to analyze, improve and optimize energy-intensive systems have to deal not only with energy consumption and economics, but also with the pollution and degradation of the environment. The Annals of "Dunarea de Jos" University of Galati Fascicle IX Metallurgy and Materials Science ISSN 1453 – 083X. NR 2 – 2005 Sat, 01 Jan 2005 00:00:00 GMT http://arthra.ugal.ro/handle/20.500.14043/25895 2005-01-01T00:00:00Z http://arthra.ugal.ro/handle/20.500.14043/25894 Researches Regarding the Rolling of the Sinterized Metallic Powders Strips Istrate, Sorin Miltiade; Petrea, Ionel This paper work is distinguishing the size modification of those two material layers gotten by the bimetallic strip rolling, joined by the sintering. The iron powders sediment was achieved on the steel strip backing. After sintering and rolling, the geometrical and technological characteristics were analyzed and correlation between the average rolling pressure, from bimetallic strip and reduction of the powder layer thickness lengthways rolling as wells correlation between hardness of the powder layer and thickness reduction after were studied. The Annals of "Dunarea de Jos" University of Galati Fascicle IX Metallurgy and Materials Science ISSN 1453 – 083X. NR 2 – 2005 Sat, 01 Jan 2005 00:00:00 GMT http://arthra.ugal.ro/handle/20.500.14043/25894 2005-01-01T00:00:00Z