国内紧凑式热连轧带钢生产线（CSP）的精轧机均采用连续可变凸度（CVC）工作辊与常规支持辊的辊形配置，CSP轧机因具有轧制规格相对比较单一、宽度变化比较少、各机架换辊周期不同等特点，其轧辊磨损与常规热轧有所不同。通过对1800 mmCSP热连轧机支持辊磨损情况的跟踪测试与分析发现，支持辊具有2种不同的典型磨损特点，严重的支持辊磨损将影响轧机的板形控制性能，并增加辊耗。在理论分析的基础上，针对不同的磨损特点分别提出了不同的支持辊新辊形，经现场试验并通过有限元仿真计算，证明新辊形具有良好的自保持性，可在整个服役期内稳定发挥其性能。
Several domestic continuous hot rolling mills in CSP (compact strip production) have CVC (continuously varible crown) work rolls and conventional backup rolls. As the CSP production process is different from the conventional hot rolling with less product varieties,widths, and different roll service periods of stands, the wear characteristics of the rolls are different too. Through tracing and testing the backup rolls, it was found that the backup rolls of the 1800 mm CSP continuous hot rolling mill have two typical wear characteristics on different stands, the serious wear of backup rolls affects the controllability of the mill for profile and flatness of products, and increases the roll consumption.Based on theoretical analysis, two new backup roll contours were proposed for two wear characteristics. Both the trial and the FEM analysis proved that the new roll contours have good property of selfmaintenance, and can work well during the whole service period.
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