| 摘要 |
PURPOSE:To enable the softening of hot-rolled plate without the necessity of annealing after hot rolling and improve cold workability, by holding a hot rough rolled slab at a prescribed temp. for a prescribed period and further executing hot finish roughing under prescribed conditions. CONSTITUTION:An austenitic stainless steel slab is hot rough rolled, held at 1,000-1,150 deg.C for 1-30min, and subjected to hot finish roughing so that the cumulative draft and the temp. at the outlet side of the final stand become >=50% and >=950 deg.C respectively. The hot-rolled plate is descaled, obviating the necessity of annealing, and cold-rolled to a prescribed thickness, followed by final annealing and pickling. |
