中厚钢板侧弯的形成原因分析

Analysis of Formation Reasons of Plate Camber

基于4辊中厚板轧机,分析了坯料楔形、温度分布不均匀、轧机两侧刚度存在差异、推床对中不正、轧辊辊形和APC及AGC方式对中厚板侧弯的影响,得知温度分布不均匀、推床对中不正和轧辊辊形对侧弯影响较大,是今后控制侧弯的重要因素。这些分析对今后侧弯的控制方法提供一定的理论依据。通过首钢中厚板厂的应用实践,上述分析得到很好验证。

For 4-high plate rolling mill, the influence of slab wedge, temperature uniformity along width direction, rigidity difference, side-guide alignment, roll profile, APC（automatic position control） and AGC （automatic gauge control） on plate camber was analyzed. The results show that temperature uniformity along width direction, sideguide alignment, roll profile are main influencing factors. The analysis affords theoretical base for camber control. Application in Shougang Plate Mill has proved the analysis is effective.