Review of the Billet Surface Temperature Measurement in the Secondary Cooling Zone of Continuous Casting

The continuous casting technology is a process of heat transferring and billet solidifying.During this process,temperature is one of the most important parameters for controlling.In the secondary cooling zone,the billet surface temperature is the design basis of the water-distribution controlling system.It is also an important way to maintain the billet quality.This paper reviewed the billet surface temperature measurement in the secondary cooling zone of continuous casting.The paper also introduced the principle and process of the infrared measurement.Meanwhile,the paper analyzed and summarized the infrared temperature measurement and the research work of the infrared thermography in detail.It also brings forward some viewpoints on the future development orientation of the infrared measurement.