| 摘要 |
FIELD: process engineering. ^ SUBSTANCE: proposed method comprises hot rolling at broad-strip mill, water cooling to reeling temperature and strip reeling. If required, reel is either unreeled or temper-rolled with subsequent unreeling, or pickling, or pickling with subsequent temper rolling. Breaking-off and fluting are ruled out due to rolling end temperature set to make over 830C, strip reeling temperature set subject to mathematical relation, and temperature difference between hot rolling end and reeling set to satisfy the following relation, i.e. öT=(Trend-Treel)ëÑ250C. Note here that reeling temperature for strips with thickness smaller than 2.5 mm is set 10-60C lower than that for strips with thickness equal to 2.50 mm and larger. ^ EFFECT: high-quality surface strips from steel with content of aluminium approximating to 0,05% including pickled strips. ^ 7 cl, 1 tbl |
