Method for improving rigidity of roll gap

• Main Authors: ZHANG DAJIANG, YANG LIQING, CHANG UNDONG, LI JING, RAO JING, RAO LI, LI YANFENG, DENG HANGZHOU, SHANG CUNLIANG
• Format: Patent
• Language: Chinese; English
• Published: 28.07.2023
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

The invention provides a method for improving roll gap rigidity, a multiple square curve is adopted for the roll body shape of a back-up roll, and the equation is y = (a1x1 + a2x2 + a3x3 + a4x4 + a5x5 + a6x6 + a7x7 + a8x8) + (b1 (1-s-x) 1 + b2 (1-s-x) 2 + b3 (1-s-x) 3). Good shape meshing is achieved between the roll shape curve of the supporting roll and the roll shape curve of the working roll, the stability of the shape of a bearing roll gap is improved, the purposes of improving the strip steel plate shape and improving uneven abrasion of the roll are achieved, and meanwhile on the premise that the edge chamfering function of the supporting roll is guaranteed, the plate shape control quality is improved, and the service life of the supporting roll is prolonged. 本申请提供了一种提高辊缝刚性的方法，支撑辊辊身形状采用多次方曲线，方程为：y＝(a1x1+a2x2+a3x3+a4x4+a5x5+a6x6+a7x7+a8x8)+(b1(l-s-x)1+b2(l-s-x)2+b3(l-s-x)3)，涉及原材料加工技术领域，其中，热轧带钢支撑辊辊型曲线通过工作辊CVC辊型曲线与支撑辊高次方辊型曲线相叠加的方法，使支撑辊辊型曲线与工作辊辊型曲线实现良好的形状啮合，提高承载辊缝形状的稳定性，达到改善带钢板形、改善轧辊不均匀磨损的目的，同时在保证支撑辊边部倒角功能的