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Temperature Field Simulation of Steel Pipin the Induction Quenching and Tempering Process

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With the rapid development of China's industry on the increasing demand for the steel grade, the performance of the steel pipe has put forward higher requirements. Improving the performance of the steel pipe has two ways: One is increasing the alloying element suitably for the steel pipe and the other is quenching and tempering on the steel pipe. By comparison, the cost and the market competition ability of the steel pipe through quenching and tempering is lower, and the heating mode using the electromagnetic induction heating can save the energy effectively and decrease pollution. The characteristics of steel pipe during the induction quenching and tempering are complex, the change of material properties with temperature makes exact analysis methods very difficult to implement. Therefore, a powerful computer aided numerical tool is selected to numerically model the induction heating process in this paper. The mathematic model coupling with electromagnetic field and thermal field was established, and it was solved by finite element method (FEM), thus the steel pipe temperature distribution and its variation with time were obtained. To validate the model feasible, the results were evaluated and compared with the experiment results, which showed that the simulation results are reliable and effective. At last, the induction quenching and tempering process were studied and demonstrated. The quenching technology and the tempering technology have different temperature requirements, so the two technologies must have different temperature distribution, which caused by different parameters such as the induced power intensity and frequency. These simulation results can provide important information to optimize the whole induction quenching and tempering process.
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Keywords: INDUCTION QUENCHING AND TEMPERING; STEEL PIPE; TEMPERATURE DISTRIBUTION

Document Type: Research Article

Publication date: September 1, 2012

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  • Journal of Computational and Theoretical Nanoscience is an international peer-reviewed journal with a wide-ranging coverage, consolidates research activities in all aspects of computational and theoretical nanoscience into a single reference source. This journal offers scientists and engineers peer-reviewed research papers in all aspects of computational and theoretical nanoscience and nanotechnology in chemistry, physics, materials science, engineering and biology to publish original full papers and timely state-of-the-art reviews and short communications encompassing the fundamental and applied research.
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