Method for proofreading elongation of single-stand temper mill unit

The invention discloses a single-stand temper mill elongation correction method. The method comprises the following steps: selecting strip steel, marking the strip steel, and remarking information for tracking; an elongation value is preset according to the elongation value required by the process technology; and a measured value is recorded to calculate an elongation deviation value, and the laser velocimeter is corrected. According to the single-stand temper mill elongation correction method, measurement correction parameters can be provided for the laser velocimeter to correct the single-stand temper mill elongation, calculation is carried out by using dotting area system feedback data, manual measurement is not needed, automatic correction is achieved, and the labor cost is reduced; and calculation is carried out after the dotting area is flattened, and the average value calculation accuracy is higher. The method has better effects on execution cost and accuracy. 本发明公开了一种单机架平整机组延伸率校对方法包括：选择带钢对带钢进行标记并备注信息进