Abstract
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.
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References
G.J. Collie and I. Black, An Experimental Evaluation of Induction Bending as a Method of Producing Pipe Bends with Radii < 2.5D, Proc. Inst. Mech. Eng., Part E, 2008, 222, p 103–114
G.J. Collie and I. Black, An Investigation into the Mechanical Properties of Super Duplex Stainless Steels at the Elevated Temperatures Expected During Induction Bending, Mater. High Temp., 2007, 24(2), p 103–112
G. Frommeyer, H. Hofmann, and J. Löhr, Structural Superplasticity at High Strain Rates of Super Duplex Stainless Steel Fe-25Cr-7Ni-3Mo-0.3N, Steel Res., 2003, 74(5), p 338–344
G.J. Collie and I. Black, Metallurgical Aspects of Induction Bending of Thick-Walled Super Duplex Pipe, Proc. Inst. Mech. Eng., Part L, 2008, 223, p 19–29
W. Li, M. Wang, F. Du, and Z. Xu, FEM Simulation of Large Diameter Pipe Bending Using Local Heating, J. Iron Steel Res. Int., 2006, 13(5), p 25–29
Z. Hu and J.Q. Li, Computer Simulation of Pipe-Bending Process with Small Bending Radius Using Local Induction Heating, J. Mater. Process. Technol., 1999, 91, p 75–79
Z. Wang and Z. Hu, Theory of Pipe Bending to a Small Radius Using Induction Heating, J. Mater. Process. Technol., 1990, 21(3), p 275–284
N.R. Stansel, Induction Heating Handbook, McGraw-Hill, 1979
S. Zinn and S.L. Semiatin, Coil Design and Fabrication: Basic Design and Modifications, Heat Treat., June 1988, p 32–36
J. Reason, Watch Materials Properties During Induction Bending, Power, 1987, 131(12), p 33–36
J. Davies and P. Simpson, Induction Heating Handbook, McGraw-Hill, 1979
G. Dahake, Precision Induction Heating with Advanced Solid State Technology. http://www.ameritherm.com/PDFs/prec_ind_htg.pdf?84,179. Accessed May 2009
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Collie, G.J., Black, I. An Experimental Evaluation of the Temperature Profiles in Super Duplex Pipe Subjected to Induction Heating and Bending. J. of Materi Eng and Perform 20, 90–101 (2011). https://doi.org/10.1007/s11665-010-9660-y
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DOI: https://doi.org/10.1007/s11665-010-9660-y