材料期刊网

根据宁波钢铁1780热连轧机精轧机组采用的“窜辊+辊型+弯辊”的技术方案以及设备特点，以板形质量和轧辊使用寿命为前提条件，工作辊采用燕山大学连家创教授VCSW专利辊型，支承辊采用平辊+辊端辊型。通过对提供的典型规格产品进行辊型优化设计计算，确定每一架轧机工作辊和支承辊的辊型参数。为使设计的辊型适用于产品大纲中的所有产品，同时又方便轧辊磨削及管理，对轧辊辊型参数进行加权处理。支承辊F1～F7使用同一套辊型参数，工作辊F1～F4和F5～F7分别使用一套辊型参数。配合燕山大学设计的板形控制系统，经生产考核，带钢板凸度控制在30μm~60μm之间，平直度良好，命中率达到96%以上。

According to the “roll shifting+roll shape+ roll bending” technology and device characteristics of Ningbo steel 1780 hot strip mill, both shape control quality and mill roll life-span were prior conditions, the shape roll patent VCSW of Lian Jiachuang professor in Yanshan University was adopted as the working rolls, The straight barrel + edge curve were adopted as the backup rolls. Roll shape parameters of every working rolls and backup rolls were specified through the optimization design calculation of the typical productions. In order to make the designed shape roll fit for all productions, and make the roll milling and management convenient, weighted handling was processed to roll shape parameters. The same roll shape parameters were used to the F1～F7 backup rolls, the other two sets of the roll shape parameters were used to the F1～F4 working rolls and F5～F7 working rolls, respectively. With shape control system designed by Yanshan University, The practice showed that the strip crown was controlled between 30um and 60um, the strip flatness was good, the percentage of hits is more than 96%.