This article introduces the conventional thermocouple and radiation measurement methods for the surface temperature of steel billets in a heating furnace,as well as their shortcomings.In response to the problem that measurements such as buried thermocouple and black box are only suitable for steel bil-let heating testing and cannot meet the continuous measurement of the steel billet heating process,a method for continuous temperature measurement by embedding thermocouple in the heat-resistant pad of a walking beam heating furnace is proposed.Based on the length of steel billet movement and the tempera-ture values of steel billets at each measuring point of the pad,Build a temperature change model during billet heating to achieve prediction and tracking of the surface temperature of the billet.
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