Method for evaluating temperature uniformity of hot rolled strip steel in width direction

Abstract

The invention discloses a method for evaluating the temperature uniformity of hot-rolled strip steel in the width direction, and relates to the technical field of hot-rolled strip steel. The invention discloses a method for evaluating the temperature uniformity of hot rolled strip steel in the width direction. Comprising the following steps: adding a temperature measuring line and generating temperature data of the temperature measuring line; processing the data to determine the edge position point of the strip steel; converting the relative coordinates into strip steel width absolute position points; and finally, determining the average temperature value of the strip steel in the width direction in an integral mode, wherein the point corresponding to the temperature data, exported through analysis software, of the temperature measuring line A is the relative position point B of the shooting picture space, and the position point without the actual width of the strip steel needs to be converted. The method further comprises the step of calculating the edge temperature drop values of the operation side and the transmission side of the hot-rolled strip steel, so that the temperature drop values of the operation side and the transmission side of the hot-rolled strip steel in the width direction are simply, conveniently and objectively calculated; and finally, quantitatively evaluating the temperature uniformity of the hot-rolled strip steel.

Description

technical field [0001] The invention relates to the technical field of hot-rolled steel strips, in particular to a method for evaluating temperature uniformity in the width direction of hot-rolled steel strips. Background technique [0002] In the production process of hot-rolled strip steel, the temperature uniformity in the width direction has always been a key factor affecting the uniformity of product performance. The temperature drop on the operation side and transmission side of the strip is obviously faster than that in the middle position, resulting in uneven temperature in the width direction, which exists objectively. The technicians have carried out a lot of work on the cooling method, but it is only to alleviate this problem. However, how to quantitatively evaluate the temperature uniformity in the width direction of hot-rolled strip steel is a problem that technicians have to face. [0003] The infrared thermal imager uses an infrared detector and an optical im...

AI Technical Summary

Problems solved by technology

[0007] Aiming at the problems of large workload and low objectivity in calculating the temperature drop value and the width of the temperature drop area in the prior art, the present invention proposes a hot-rolled strip steel The method of evaluating temperature uniformity in the width direction, firstly add a temperature measuring line and generate the temperature data of the temperature measuring line, process the above data to determine the edge position of the strip, and then convert the relative coordinates into the absolute position of the strip width point, and finally use the integral method to determine the average temperature in the width direction of the strip, so as to simply and objectively reflect the edge temperature drop in the width direction of the strip

Images