Analysis On Hot Rolling And Cold Rolling Texture Of Fe-3% Si Steel Strip

This paper reviews the situation of internal and external research results and development about the exploitation of grain oriented silicon steel with the process based on the status of the technology of continuous casting and rolling. The texture of hot rolling, normalizing and cold rolling on Fe-3%Si grain oriented silicon steel are tested and analysised throughout simulating thin slab continuous rolling process to produce oriented silicon steel in the lab.The following general conclusions based on the results of this work can be drawn.(1) The EBSD results of hot rolled sample 2# and 3# showed that texture gradient exists from surface to center.{110}<001> orientation exists in transition Layer and{001}<110>, {112}<110> orientation exists in center. When the reduction is 97.1%,{110}<001>,{110}<112> and sharp{001}<110> orientation exist in the sample.(2) Analysis on texture density of hot rolled sample 4# and 5# showed that the intermediate reduction had less effect onγand e (GOSS orientation is similar) fiber thanαfiber.(3) There were similar texture gradient for hot rolled sample 3# and 6# with different chemical compositions. The samples had similar texture distribution to HiB steel.f Hi-B steel. The density of{111}<112> orientation was higher than{111}<011> on y fiber.(4) The cold rolled texture was composed by a (<110>//RD) andγ(<111>//ND) fiber.When the total reduction was 59.2% and 70.5%, texture on y fiber inceased gradually.. When the total redution was 79.7% and 84.3%, texture on y fiber decreased gradually because of the excessive processes.(5) The samples 13# and 3# showed that the cold rolled texture inherit the distribution of hot rolled texture, but the texture ofα,εandγchanged:αfiber changed from {001}<110> orientation to{223}<110> and{111}<110> orientation. Theεfiber transformed to{111}<112> orientation. On Y fiber, all the texture density increased andαfiber effected greatly on texture density of{111}<011> orientation.(6) The cold rolled sample 13# and 3# showed that after cold rolling, {001}<110> orientation transforms to{111}<110> orientation.on a fiber.. Onεfiber, the density of{111}<112> orientation of H/4 layer in sample 14# was the highest in the layers, Onγfiber, the density of{111}<110> orientation of H/2 layer in sample 14# was the highest in the layers.