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The transport type metal detector balanced differential transmission coil to detect metal particles. In the process of industrial production, other metal production equipment, transmission belt of steel and other external factors are influenced by the test. Repeated experiments can reduce the interference, but will affect the production efficiency, this paper provides a more efficient and effective...
A two-dimension magnetic flux density distribution of the ferromagnetic metal was simulated by using finite element analysis method. From the magnetic flux density distribution, the crack in ferromagnetic metal can be detected through the magnetic flux leakage. Experimental results showed that the magnetic flux density decreased gradually with the increasing of the width and depth of the crack under...
This study proposes the meshless method based on weighted least square method (WLSM) for simulating 3D magnetohydrodynamic (MHD) problems. In this method, the fluid motion equation and the magnetic field equation are weakly coupled. The effectiveness of this method is verified through the analysis of the molten metal behavior under an alternating magnetic field.
Wide application of metal materials resulted in a lack of resources. The mental scarcity has become a bottleneck which restricts the development of our industry and affects the continuous development of society and economy. Scrap metal recycling is an inevitable choice to solve mental resources shortage. So it is very important to separate the different scrap mental materials accurately. The eddy...
During the continuous casting process of a steel mill, guided electromagnetic forces that are generated from the in-mold electromagnetic stirrer (M-EMS) systems are commonly applied to reduce the impurities of the molten metals. Due to their high installation costs and limited operational spaces, modifications on the existing M-EMS systems to improve their overall performance are restricted. Verified...
Heat transfer and flow structure play a crucial role in a number of processes, such as casting and solidification. This paper reports a mathematical model and finite element (FEM) numerical simulations aimed at understanding and optimizing the processes that occur in natural convection flows and phase change solidification of continuous casting. The interaction between an external magnetic field and...
Compared with other known systems, the traveling wave (TW) inductor is considered to be more promising, because it could obtain more uniform heating. In this paper a 2D FEM code has been used with reference to a new double-side slotless TW inductor in order to analyse the distribution of the eddy current density in the moving metal strips. Results show that the slotless TW inductor has a more uniform...
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