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针对无取向硅钢连续自由编排“批量同宽”的自由规程轧制要求,自主开发了ASR-C非对称自补偿工作辊技术.采用ANSYS建立了三维辊系有限元模型.有限元分析和工业应用试验发现,ASR-C工作辊无论是在带钢宽度变化时,还是在轧制单位完整服役期内,均具有稳定的凸度和磨损控制双重能力,同时ASR-C工作辊增强了辊缝横向刚度和弯辊力的调节效率.在武钢1 700 mm热连轧机进行了2.55 mm×1 280 mm宽幅无取向硅钢“批量同宽”轧制的ASR-C工作辊工业试验.结果表明,凸度≤45μm的带钢比例由常规工作辊的41.8%提高到98.2%,凸度>53μm的带钢比例从33.9%下降到1.8%,ASR-C工作辊辊形自保持性达到88%.ASR-C技术取得显著稳定的凸度和磨损控制效果,实现了“批量同宽”的自由规程轧制.
ASR-C asymmetric self-compensating work roll technology has been independently developed for the free-form rolling schedule of continuous free arrangement of “non-oriented silicon steel” and “batch of same width” .A three-dimensional finite element model of roller system was established by ANSYS. The industrial application test found that the ASR-C work roll has the dual ability of stable crown and wear control both in the change of the strip width and in the complete service period of the rolling unit, meanwhile the ASR-C work roll enhances the roll The transverse stiffness and the adjusting efficiency of bending force.The industrial test of ASR-C work roll with 2.55 mm × 1 280 mm width non-oriented silicon steel “batch width” rolling was carried out in 1 700 mm hot strip mill of WISCO. The results show that the ratio of strip with crown ≤45μm is increased from 41.8% to 98.2% for conventional work rolls and the proportion of strip with crown> 53μm is reduced from 33.9% to 1.8%. ASR-C roll self-holding 88% .ASR-C technology achieved significant stability of the crown and wear control effect, to achieve the “batch width ” free-schedule rolling.