Notice of RetractionNumerical Simulation of Oil Steel Pipe in Induction Heat Treatment Process
With the rapid development of the oil industry-level demand for steel, the performance of oil steel pipe has put forward higher requirements. Induction heat treatment of steel pipe can improve performance and save cost, so it has been widely used in the steel pipe manufacturing industry. In order to reduce the number of trial-error procedures in plant which usually are long and costly, numerical simulation has been revealed as an important tool in designing the induction heating system. In this paper, the steel pipe temperature distribution in induction heat treatment is simulated considering the material properties. It is shown that the simulation results of the object temperature in good agreement with the different technology demands, which can provide useful information to optimize the whole induction heating process.
Numerical modelling of induction heating of long workpieces
We consider in this paper an induction heating process. A mathematical model is presented, together with numerical methods used in order to describe the magnetic field, as well as the temperature field evolution. Experimental measurements were performed in order to validate the numerical simulation results. A comparison is presented for both ferromagnetic and non-ferromagnetic materials. An error discussion is provided. >
Analysis of an induction heating system by the finite element method combined with a boundary integral equation
The method, based upon the finite element technique, is presented for the analysis of an induction heating system in unbounded free space. In the induction system, a quasistatic magnetic field problem with cylindrical symmetry is solved. First, a mathematical boundary is defined arbitrarily in free space to contain an induction system inside. An integral relation is derived on the boundary surface using the response function excited by a circular line current. The boundary relation gives a constraint to the finite element analysis in the interior region. In the finite element discretization, first-order elements are used, and constant elements are assumed for the discretization of the boundary equation. To couple the finite element analysis to the boundary integral equation, only the potentials differently approximated on the boundary are matched reasonably. After the accuracy of the method is verified for a single coil, load characteristics of a practical induction heating system are analyzed.