Adaptability and Efficiency Comparison of the Girder Casting Method by the Slide Shuttering Forms
Taking the girder casting method by the slide shuttering forms on the passenger dedicated line of Zhengzhou-Xi'an Railway as the example,this paper introduces the features of the girder casting method by the slide shuttering forms,and expounds the structural components,working principles and application efficiency of three kinds of slide shuttering forms.
A finite 3D element model coupled with a 2D finite volume one has been developed obatained in order to study the miscrostruture evolution during the desification of a green compact obtained by powder metturgy [1]. The simulation of the process was performed on to grains considering surface diffusion of the grains, grain boundary diffusion and volume diffusion in the grains, with as source terms the radii of curvature. The stress gradients are the driving forces of sintering. The mechanical behaviour of the grains is considered as elastic in the whole temperature range of the sintering cycle.