Patent application number | Description | Published |
20110146850 | Method for Producing A Steel Strip Having A Dual-Phase Microstructure - A method for producing semi-finished product, particularly steel strip, having a dual-phase microstructure and a tensile strength between 500 and 1000 MPa. Elements such as carbon and nitrogen which are interstitially dissolved in a ferritic matrix are bound by alloying elements such as Al, Mo, Nb, Ti and V which form carbide, nitride or carbonitride in order to adjust a microstructure of hard components such as martensite, bainite, carbide with low fractions of residual austenite in a ferritic matrix, which is substantially free from interstitially dissolved elements (IF character). | 06-23-2011 |
20120043049 | PROCESS AND APPARATUS FOR THE CONTINUOUS CASTING OF A SLAB - The invention relates to a process for the continuous casting of a slab ( | 02-23-2012 |
20130014362 | METHOD AND DEVICE FOR IN-LINE SURFACE TREATMENT OF SLABSAANM Bilgen; ChristianAACI DusseldorfAACO DEAAGP Bilgen; Christian Dusseldorf DEAANM Bocher; TilmannAACI DusseldorfAACO DEAAGP Bocher; Tilmann Dusseldorf DEAANM Neumann; LucAACI DusseldorfAACO DEAAGP Neumann; Luc Dusseldorf DEAANM Gathmann; MarcelAACI DusseldorfAACO DEAAGP Gathmann; Marcel Dusseldorf DEAANM Klinkenberg; ChristianAACI HerdeckeAACO DEAAGP Klinkenberg; Christian Herdecke DE - The aim of the invention is to improve the surface quality of slabs ( | 01-17-2013 |
20130042950 | HOT ROLLING MILL AND METHOD FOR HOT ROLLING A METAL STRIP OR SHEET - A method for hot rolling a metal strip or metal sheet, wherein 1. | 02-21-2013 |
20160067753 | METHOD FOR PRODUCING A METAL STRIP BY CASTING AND ROLLING - A method for producing a metal strip ( | 03-10-2016 |
20160108488 | Process for producing grain-oriented electrical steel strip and grain-oriented electrical steel strip obtained according to said process - With a process for producing grain-oriented electrical steel strip by means of thin slab continuous casting, comprising the following process steps: a) smelting a steel with a smelt which, in addition to iron (Fe) and unavoidable impurities, contains Si: 2.00-4.00 wt %, C: 0.025-0.100 wt %, Mn: 0.060-0.500 wt %, Cu: 0.200-0.550 wt %, Al | 04-21-2016 |
20160108493 | Process for producing grain-oriented electrical steel strip and grain-oriented electrical steel strip obtained according to said process - With a process for producing grain-oriented electrical steel strip by means of thin slab continuous casting, comprising the following process steps: a) smelting a steel with a smelt which, in addition to iron (Fe) and unavoidable impurities, contains Si: 2.00-4.00 wt %, C: 0.025-0.100 wt %, Mn: 0.060-0.500 wt %, Cu: 0.200-0.550 wt %, Al | 04-21-2016 |
20160108494 | Process for producing grain-oriented electrical steel strip and grain-oriented electrical steel strip obtained according to said process - A process for producing grain-oriented electrical steel strip by means of thin slab continuous casting, comprising the following process steps: a) smelting a steel, b) continuously casting the smelt by thin slab continuous casting, c′) heating up the thin slabs and subjecting the slabs to homogenization annealing at a maximum temperature of 1,250° C., d) heating to a temperature between 1.350° C. and 1.380° C., e) continuously hot rolling the thin slabs to form a hot-rolled strip, f) cooling and reeling the hot-rolled strip to form a coil, g) annealing the hot-rolled strip after reeling and prior to a subsequent cold rolling step, h) cold rolling the hot-rolled strip to the nominal usable thickness, i) subjecting the cold-rolled strip to recrystallization, decarburization and nitridation annealing, j) applying an annealing separator (non-stick layer) to the strip surface of the cold-rolled strip, k) subjecting the cold-rolled strip to secondary recrystallization annealing, forming a finished steel strip having a pronounced Goss texture, and l) stress-free annealing the finished steel strip, which has been coated with an insulating layer, provides an improved process for producing grain-oriented electrical steel strip by means of thin slab continuous casting. This is achieved in that the recrystallization, decarburization and nitridation annealing of the cold-rolled strip in process step h) comprises a decarburization annealing phase and a subsequent nitridation annealing phase, with an intermediate reduction annealing phase being interposed between the decarburization annealing phase and the nitridation annealing phase, and carried out at a temperature ranging from 820° C.-890° C., for a maximum period of 40 seconds, with a dry, gaseous annealing atmosphere, which contains nitrogen (N | 04-21-2016 |
20160111190 | Process for producing grain-oriented electrical steel strip and grain-oriented electrical steel strip obtained according to said process - A process for producing grain-oriented electrical steel strip by means of thin slab continuous casting, comprising the following process steps: a) smelting a steel, b) continuously casting the smelt by thin slab continuous casting, c′) heating up the thin slabs and subjecting the slabs to homogenization annealing at a maximum temperature of 1250° C., d) heating to a temperature between 1350° C. and 1380° C., e) continuously hot rolling the thin slabs to form a hot-rolled strip, f) cooling and reeling the hot-rolled strip to form a coil, g) annealing the hot-rolled strip after reeling and prior to a subsequent cold rolling step, h) cold rolling the hot-rolled strip to the nominal usable thickness, i) subjecting the cold-rolled strip to recrystallization, decarburization and nitridation annealing, j) applying an annealing separator (non-stick layer) to the strip surface of the cold-rolled strip, k) subjecting the cold-rolled strip to secondary recrystallization annealing, forming a finished steel strip having a pronounced Goss texture, and l) stress-free annealing the finished steel strip, which has been coated with an insulating layer, provides an improved process for producing grain-oriented electrical steel strip by means of thin slab continuous casting. This is achieved in that the recrystallization, decarburization and nitridation annealing of the cold-rolled strip in process step h) comprises a decarburization annealing phase and a subsequent nitridation annealing phase, with an intermediate reduction annealing phase being interposed between the decarburization annealing phase and the nitridation annealing phase, and carried out at a temperature ranging from 820° C.-890° C., for a maximum period of 40 seconds, with a dry, gaseous annealing atmosphere, which contains nitrogen (N | 04-21-2016 |