Analysis method for cooling performance of wire rod after being rolled

The invention discloses an analysis method for cooling performance of an air-blown rod after being rolled, and belongs to the technical field of producing roll steel. The method comprises the following processing steps: performing camera shooting on a temperature field, to be specific, regulating the heat radiation rate of a thermal imager, and performing the camera shooting on a steel wire roll which is rolled in the advance process in a Stelmor air cooling line to directly obtain a distribution image of the temperature field of a steel wire rod in the Stelmor air cooling line; obtaining a curve of the continuous changes of the temperature, to be specific, scanning the temperature lines of the temperature field of the steel wire rod in the advance direction of the steel wire rod in the Stelmor air cooling line, and measuring the curve of the temperature changes of the steel wire rod at different positions in the advance direction on the air cooling line; analyzing the cooling performance, to be specific, analyzing a cooling rate before the phase change, the beginning temperature of the phase change, the temperature rise of the phase change, the cooling rate after the phase change, the temperature differences in the same ring, the cooling rate differences in the same ring, the temperature differences of the phase change in the same ring, and the like of the steel wire rod in the Stelmor air cooling line according to the feature points of the curve of the temperature changes of the steel wire rod. The method has the advantages that by the method, performance data of the phase change process of the air-blown rod under the production state are accurately reflected, the method is concise and convenient, and direct adjustment bases for regulating the parameters of a fan in the air cooling line and optimizing the parameters of a Jialing device are provided.