为满足新一代高技术冷连轧机宽幅电工钢薄板等高端板材“Dead flat”矩形断面超平材超高板形质量要求,采用显式动力学有限元法建立六辊冷连轧机一体化仿真模型,利用现场工业轧制试验数据验证有限元模型的准确性,定量分析电工钢完整轧制...为满足新一代高技术冷连轧机宽幅电工钢薄板等高端板材“Dead flat”矩形断面超平材超高板形质量要求,采用显式动力学有限元法建立六辊冷连轧机一体化仿真模型,利用现场工业轧制试验数据验证有限元模型的准确性,定量分析电工钢完整轧制过程中不同轧制因素对有载辊缝凸度的影响规律;基于6辊UCM冷轧机板形控制机理和课题组自主设计的EDW-N(Edge Drop Control Work Rolls for Non-shifting of the Work Rolls)工作辊非窜辊辊形建立六辊冷连轧机电工钢矩形断面控制的弯辊力数学模型;由有限元仿真与现场工业轧制试验结果确定了六辊冷连轧机电工钢矩形断面控制弯辊力数学模型的参数,并验证了其准确性;某大型1420 mm六辊冷连轧机生产应用现场连续检测反馈数据表明:取得电工钢高精度出口凸度均值C15≤7μm的比例从38.58%提高到67.74%的显著生产实绩,充分发挥了六辊冷连轧机的高精度板形控制能力,可在很大调节范围内对板形质量进行调控,为解决无工作窜辊的6辊UCM冷连轧机宽幅电工钢薄板矩形断面控制瓶颈难题提供了解决方案和实现路径。展开更多
以生产小直径热轧精密无缝钢管为背景,详细介绍了Φ114 mm PCM短流程精密热连轧无缝钢管生产线的设备选型和工艺特点,以及该生产线的实际生产情况。实际生产结果表明:采用3机架二辊连轧管机组生产小批量热轧精密无缝钢管,其在产品质量...以生产小直径热轧精密无缝钢管为背景,详细介绍了Φ114 mm PCM短流程精密热连轧无缝钢管生产线的设备选型和工艺特点,以及该生产线的实际生产情况。实际生产结果表明:采用3机架二辊连轧管机组生产小批量热轧精密无缝钢管,其在产品质量、生产成本、节能环保和投资运营等方面具有明显的优势,生产组织灵活,设备易于掌握和达产。展开更多
本文详细介绍了洛阳有色金属加工设计研究院开发设计的三辊 Y 型大卷重钼线卷连轧机组的技术及装备特点。该机组的工艺技术及装备水平均达到了国际领先水平,填补了国内空白。它的成功投产标志着我国钨、钼、钛等金属的加工技术进入了一...本文详细介绍了洛阳有色金属加工设计研究院开发设计的三辊 Y 型大卷重钼线卷连轧机组的技术及装备特点。该机组的工艺技术及装备水平均达到了国际领先水平,填补了国内空白。它的成功投产标志着我国钨、钼、钛等金属的加工技术进入了一个新的发展阶段。展开更多
A theoretical method for selecting strip rolling mill type that considered shape control ability was established using the figure alteration range that was worked by the alteration track of vector expressing strip'...A theoretical method for selecting strip rolling mill type that considered shape control ability was established using the figure alteration range that was worked by the alteration track of vector expressing strip's cross section (crown) to express the shape control ability of rolling mill. With the mathematical models and simulation software that were developed by the authors' own models, four types of mills were aimed, including HCM (6-high middle rolls shift type HC (high crown) -mill), HCMW (6-high middle rolls and work rolls shift type HC-mill), UCM (6-high middle rolls shift type HC-mill with middle roll bender) and UCMW (6-high middle rolls and work rolls shift type HC-mill with middle roll bender), and the shape and crown control ability of every mill type was analyzed and compared. An appropriate arrangement mode of tandem mill was brought forward. The results show that UCMW mill is a perfect choice for controlling shape and crown, and the area of control characteristics curve of UCMW (or UCM) is twice than that of HCM, but UCM mill is also a good choice for its simple frame. In other word, the shape and crown controlling ability of UCMW mill is better than that of UCM mill, but the frame of UCM mill is simpler than that of UCMW mill. As for the final type of mill, should be synthetically decided by thinking over fund and equipment technology.展开更多
文摘为满足新一代高技术冷连轧机宽幅电工钢薄板等高端板材“Dead flat”矩形断面超平材超高板形质量要求,采用显式动力学有限元法建立六辊冷连轧机一体化仿真模型,利用现场工业轧制试验数据验证有限元模型的准确性,定量分析电工钢完整轧制过程中不同轧制因素对有载辊缝凸度的影响规律;基于6辊UCM冷轧机板形控制机理和课题组自主设计的EDW-N(Edge Drop Control Work Rolls for Non-shifting of the Work Rolls)工作辊非窜辊辊形建立六辊冷连轧机电工钢矩形断面控制的弯辊力数学模型;由有限元仿真与现场工业轧制试验结果确定了六辊冷连轧机电工钢矩形断面控制弯辊力数学模型的参数,并验证了其准确性;某大型1420 mm六辊冷连轧机生产应用现场连续检测反馈数据表明:取得电工钢高精度出口凸度均值C15≤7μm的比例从38.58%提高到67.74%的显著生产实绩,充分发挥了六辊冷连轧机的高精度板形控制能力,可在很大调节范围内对板形质量进行调控,为解决无工作窜辊的6辊UCM冷连轧机宽幅电工钢薄板矩形断面控制瓶颈难题提供了解决方案和实现路径。
文摘以生产小直径热轧精密无缝钢管为背景,详细介绍了Φ114 mm PCM短流程精密热连轧无缝钢管生产线的设备选型和工艺特点,以及该生产线的实际生产情况。实际生产结果表明:采用3机架二辊连轧管机组生产小批量热轧精密无缝钢管,其在产品质量、生产成本、节能环保和投资运营等方面具有明显的优势,生产组织灵活,设备易于掌握和达产。
基金Project (50374058) supported by the National Natural Science Foundation of China and Shanghai Baosteel Group Co.
文摘A theoretical method for selecting strip rolling mill type that considered shape control ability was established using the figure alteration range that was worked by the alteration track of vector expressing strip's cross section (crown) to express the shape control ability of rolling mill. With the mathematical models and simulation software that were developed by the authors' own models, four types of mills were aimed, including HCM (6-high middle rolls shift type HC (high crown) -mill), HCMW (6-high middle rolls and work rolls shift type HC-mill), UCM (6-high middle rolls shift type HC-mill with middle roll bender) and UCMW (6-high middle rolls and work rolls shift type HC-mill with middle roll bender), and the shape and crown control ability of every mill type was analyzed and compared. An appropriate arrangement mode of tandem mill was brought forward. The results show that UCMW mill is a perfect choice for controlling shape and crown, and the area of control characteristics curve of UCMW (or UCM) is twice than that of HCM, but UCM mill is also a good choice for its simple frame. In other word, the shape and crown controlling ability of UCMW mill is better than that of UCM mill, but the frame of UCM mill is simpler than that of UCMW mill. As for the final type of mill, should be synthetically decided by thinking over fund and equipment technology.
