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. >
A numerical method for transient simulation of metallurgical compound electrodes
The objective of this work is to introduce and numerically solve a mathematical model for unsteady thermoelectrical behavior of an electric arc electrode. The electrode is composed of several materials and one of them suffers a change of state during operation. Thermoelectric parameters depend on the temperature in each material. The volumetric heat source is the Joule effect. The mathematical model leads to a coupled non-linear system of partial differential equations. The axisymmetry of the domain allows us to simplify the problem when it is written in cylindrical coordinates. We use an implicit method for time discretization and a standard finite element method for space discretization. Numerical results corresponding to the simulation of a real industrial situation are given.