| 摘要 |
DISCLOSED ARE A METHOD AND AN INSTALLATION FOR PRODUCING STEEL PRODUCTS (1) HAVING AN OPTIMUM SURFACE QUALITY, ESPECIALLY EXTREMELY LOW CARBON CONTENTS (UCL STEEL OR IF STEEL), NITROGEN CONTENTS, TOTAL OXYGEN CONTENTS, HIGH-STRENGTH OR STAINLESS STEEL QUALITIES. ACCORDING TO THE INVENTION, THE LIQUID STEEL (LB) IS CAST INTO A THIN SLAB (5A) FROM A PROCESS ROUTE (10, 11, 12, OR 13) THAT IS SELECTED ACCORDING TO THE DESIRED FINAL STRUCTURE (9) BASED ON AN ELECTRIC-ARC FURNACE (2B), IS DESCALED, CUT INTO BILLETS (15) HAVING A PARTIAL LENGTH, OPTIONALLY DESCALED ONCE AGAIN, SUBJECTED TO FINAL DESCALING DOWNSTREAM FROM A HOLDING FURNACE (16), MILLED IN A FINISHING MILL TRAIN (6A), ROLLED UP IN A ROLLING STATION (20) LOCATED DOWNSTREAM FROM THE LAST FINISHING MILL STAND (19) OR DOWNSTREAM FROM A COOLING SECTION (21), AND THE FINAL STRUCTURE (9) IS ADJUSTED IN THE COOLING SECTION (21) ACCORDING TO THE DESIRED STEEL QUALITY BY COOLING (7) ON A RUN-OUT ROLLER TABLE (22), WHEREUPON THE ROLLING STOCK (LA) IS COMPLETELY ROLLED UP IN A SECOND ROLLING STATION (23). |
