| 摘要 |
PURPOSE:To obtain a stainless sheet excellent in surface quality by cooling a thin belt-like cast billet after casting in a specified temperature range and at a specified speed and performing a scrubber grinding process as the preceding and succeeding process of a descaling process by pickling. CONSTITUTION:The thin belt-like cast billet 5 is casted by moving synchronously the wall surface of casting mold, which is composed of cooling drums 3, with the cast billet 5. After descaling by use of a pickling tank 11, the billet is rolled in cold. Then, in the case of cooling of the thin belt-like cast billet 5 after casting, the billet is cooled at the speed >=10 deg.C/sec in the temperature range of 900-600 deg.C. As the preceding and succeeding process of the process where descaling is executed by pickling in the pickling tank 11, scrubber grinding process is performed by use of scrubbers 12. By this way, surface defects of sheet due to microgrooves can be reduced. |
