Researches Concerning the Correlation of the Semiplanetary Rolling Process Factors
Abstract
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.
References
[2]. Anon, 1995, “Thin Hot Strip Using Planetary Mill”, Steel Time Intern., Sept. 1995, 33-35.
[3]. Cănănău, N., Ivănescu, A., 2001, “Study on the Relation between the Quality of Continuous Cast Slabs and the Surface Discontinuities of the Steel Thick Sheet”, ’International Conference on Advances in Materials and Processing Technologies”, September 18-21, Leganes, Madrid, Spain, vol. 2, p. 949-954.
[4]. Cănănău, N., Gurău, G., 2005, “Semi-planetary rolling process and experimental simulation” Buletinul Institutului Politehnic Iasi, tom LI, Fasc. 2, p. 59-65.
[5]. Moussy, F., Franciosi, P., 1990,“Physique et mechanique de la mise en forme des metaux”, Presses de CNRS, IRSID, Paris.
[6]. Gelin, J., Oudin, J., Ravalard, Y., 1984, “Influence de quelques parametres metallurgiques sur la rupture ductile des acieres a bas de moyen carbone”, Mem. Et. Sci. Rev. Metall. 81.
[7]. Cănănău, N., Ivănescu, A., 1999, “Cercetari în vederea optimizarii procesului de turnare continua în scopul eliminarii fisurilor superficiale”. Universitatea din Galati.
[8]. Cănănău, N., “Cercetari privind comportarea sub tensiune a unor oteluri turnate continuu, la temperaturi de 850-1200 oC”, Contract de cercetare, Universitatea din Galaţi, 2002.
