{"id":1445,"date":"2020-12-09T12:29:27","date_gmt":"2020-12-09T10:29:27","guid":{"rendered":"https:\/\/jrn.isi.gov.ua\/?page_id=1445"},"modified":"2023-08-10T22:45:53","modified_gmt":"2023-08-10T19:45:53","slug":"1445-2","status":"publish","type":"page","link":"https:\/\/jrn.isi.gov.ua\/?page_id=1445&lang=en","title":{"rendered":"DOI: 10.52150\/2522-9117-2018-32-290-299"},"content":{"rendered":"<p style=\"text-align: left;\"><strong><a href=\"https:\/\/jrn.isi.gov.ua\/sb\/Full%2032\/32%20290-299.pdf\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-1799\" src=\"https:\/\/jrn.isi.gov.ua\/wp-content\/uploads\/2021\/01\/Button-300x99.png\" alt=\"\" width=\"194\" height=\"64\" \/><\/a><\/strong><\/p>\n<p style=\"text-align: left;\"><strong>Poleshchuk Valentin Mikhailovich,<\/strong> PhD (Engin.), Executive Director, Association of scientific organizations of the mining and metallurgical complex of Ukraine, Academic square Starodubova, 1, Dnipro, Ukraine, 49107<\/p>\n<p><strong>Brovkin Vladimir Leonidovich,<\/strong> PhD (Engin.), docent, National Metallurgical Academy of Ukraine, Gagarina Avenue, 4, Dnipro, 49600<\/p>\n<h3 style=\"text-align: left;\"><strong>Scheme of stressed-deformed condition of continuous-casted slab in\u00a0<\/strong><strong>technological casting lines<\/strong><\/h3>\n<p style=\"text-align: left;\"><strong>Abstract.<\/strong> The aim of the work is to develop a model of the deformationstressed state of a continuous-cast billet, taking into account its behavior in the continuous casting machine line. A new physical model of the ingot crust bending process in the inter-roller gap has been proposed. The model is based on the regularities of the change in the deformed state of the surface of the crust under the action of ferrostatic pressure. It is established that the crust undergoes a cyclic alternating deformation in the process of\u00a0 oving it across the interroller gap. It is shown that the surface of the crust comes into contact with the surface of the roller before approaching the inter-roller gap. This causes the appearance of an anomalous area with a constant curvature of the crust at the final stage of its buckling. The second anomalous deformation zone of the ingot crust is the junction zone of the previous crust and the subsequent inter-roller gap, where the crust instantly changes its curvature. In combination with the flat scheme of the stress-strain state, a physical model is presented, which makes it possible to identify in each of the inter-roller gaps the zone of<br \/>\nmaximum values of the tensile strain rate. Identifying the zone of maximum values of the tensile strain indicator and comparing it with the maximum allowable one allows determining and correcting the length of the inter-roller gaps of the continuous casting machine.<br \/>\n<strong>Key words:<\/strong> billet continuous casting machine, continuously cast billet, billet curvature, deformed state, physical model.<\/p>\n<p style=\"text-align: left;\"><strong>Reference<\/strong><br \/>\n1. Bulanov L.V., Korzunin L.G., Parfenov Ye.P. Mashiny nepreryvnogo lit&#8217;ya zagotovok. \u2013 Kazan&#8217;: Marat, \u2013 2003. \u2013 319 s.<br \/>\n2. Poleshchuk V.M., Brovkin V.L. Deformirovannoye sostoyaniye nepreryvno\u00aclitogo slitka s zhidkoy serdtsevinoy na krivolineynykh MNLZ. Fundamental&#8217;nyye i prikladnyye problemy chernoy metallurgii. Vypusk 30. \u2013 2015. \u2013 S. 216-225.<br \/>\n3. Niskovskiy V.M., Karlinskiy S.Ye., Berenov A.D. Mashiny nepreryvnogo lit&#8217;ya slyabovykh zagotovok. \u2013 M.: Metallurgiya. \u2013 1991. \u2013 272 s.<br \/>\n4. Wunnenberg K., Dubendorf J. Strangausbauchung zwischen St\u00fctzrollen beim Stranggie\u00dfen von Brammen. Stahl und Eisen. \u2013 1978. \u2013 Vol. 98. \u2013 P. 254- 259.<br \/>\n5. Pal&#8217;mers A., Et&#8217;yen A., Min&#8217;on ZH. Raschet mekhanicheskikh i termicheskikh napryazheniy v nepreryvnolitoy zagotovke. Chernyye metally. \u20131979. \u2013 \u2116 19. \u2013 S. 3-11.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Poleshchuk Valentin Mikhailovich, PhD (Engin.), Executive Director, Association of scientific organizations of the mining and metallurgical complex of Ukraine, Academic square Starodubova, 1, Dnipro, Ukraine, 49107 Brovkin Vladimir Leonidovich, PhD (Engin.), docent, National Metallurgical Academy of Ukraine, Gagarina Avenue, 4, Dnipro, 49600 Scheme of stressed-deformed condition of continuous-casted slab in\u00a0technological casting lines Abstract. The aim [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-1445","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/jrn.isi.gov.ua\/index.php?rest_route=\/wp\/v2\/pages\/1445","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jrn.isi.gov.ua\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/jrn.isi.gov.ua\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/jrn.isi.gov.ua\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jrn.isi.gov.ua\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1445"}],"version-history":[{"count":4,"href":"https:\/\/jrn.isi.gov.ua\/index.php?rest_route=\/wp\/v2\/pages\/1445\/revisions"}],"predecessor-version":[{"id":3868,"href":"https:\/\/jrn.isi.gov.ua\/index.php?rest_route=\/wp\/v2\/pages\/1445\/revisions\/3868"}],"wp:attachment":[{"href":"https:\/\/jrn.isi.gov.ua\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1445"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}