Research on the Effect of Initial Crown on Hot Rolled Strip Shape

Based on influence coefficient method, using the software of roll elastic deformation simulation, the effect of entry crown on hot rolled strip shape was researched and analyzed. According to the real condition of certain domestic hot rolled strip factory, the unit crown change from the first stand to the last was calculated when entry crown of hot strip alters. The calculation result shows that the entry crown effect not obviously on the target strip crown at the exit of last stand with the strip shape control reference such as bending force keeping fixed. The reason of calculation was analyzed, the research work refers theory support to strip shape setup modeling and shape control.