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应用分类模式识别的偏最小二乘法分析了热轧硅钢片的生产数据，发现影响其板形的主要工艺因素是退火炉温度场的均匀化以及与此相关的硅钢片堆垛高度。采取措施后可使板形平整度显著改善
The production data of hot-rolled silicon steel sheets were analyzed by partial least squares method based on pattern recognition. It was found that the main process factors influencing the plate shape were the homogenization of annealing furnace temperature field and the stacking height of silicon steel sheet. After taking measures can make flatness significantly improved