An Experimental Evaluation of the Temperature Profiles in Super Duplex Pipe Subjected to Induction Heating and Bending

This article briefly explains the technique of induction heating as applied to thick-walled super duplex pipe. It describes the theoretical temperature distribution which might be expected through the wall of such a pipe. An experiment is outlined that uses thermocouples to determine the actual temperature profiles within the wall of induction-heated pipe. The results of the experiment are given, and identifiable trends are discussed. A second experiment is then performed where the pipe is subjected to induction bending, and again the results are explained and discussed. Apparent discrepancies between theoretical and actual temperature profiles are then explained.