Method for judging and processing edge crack abnormity of thin strip steel of continuous unit

A continuous unit thin strip steel edge crack abnormity determination and processing method comprises the following steps: calculating a strip steel stress intensity factor based on an edge crack depth obtained by an edge crack detector in real time in combination with the maximum tensile stress of strip steel in a continuous unit, and comparing a calculation result with the fracture toughness under the current strip steel grade; and judging the edge quality of the current strip steel according to the comparison result. According to the method for judging and processing the edge crack abnormity of the thin strip steel of the continuous unit, the edge crack abnormal judgment model of the continuous unit is established according to the edge crack defect data obtained by the edge crack detector and by integrating the strip steel specification, the strip steel performance and the process parameters and the structure parameters of the unit, and the edge crack abnormal condition is judged and processed. 一种连续机组薄带钢边裂