| 摘要 |
PURPOSE:To prevent generation of flaws due to hot rolling by controlling casting temperature in continuous casting and heating temperature prior to hot rolling in accordance with N content of austenitic stainless steel. CONSTITUTION:N content of austenite stainless steel is expressed by N% in wt% and casting temperature in continuous casting is expressed by the difference DELTAT deg.C between tundish temperature and melting point of the alloy. Heating temperature HT deg.C for hot rolling is controlled to HT( deg.C)<=1,325-50X[NXDELTAT] within the range of 1,130-1,320 deg.C in accordance with the value of NXDELTAT. By this way, generation of flaws in hot rolling can be prevented. |
