The Numerical Simulation Study of the Influence of SiC Impurities on the Temperature Field of Graphite Heating Stick

In high temperature electric heating process,heat tranfer property of the graphite material can be affectted by particles of impurity. In this article,the electric heating process in industrial graphite heating stick containing SiC large particle was simulated using three-dimensional stable method by ansys software.The result indicate that dimeter of the impurity particles is an important factor that affect the inner temperature differences of the material.And the most significant parameter is the heating current.In the case of SiC particles,the inner temparature difference is in proportion to the square of heating current.