Submerged Nozzle Guide Device Of Forming Process Numerical Simulation

The powder of ZrO₂is the important Structure and Function material whichis characteristic of high dielectric constant, high hardness, high strength, hightenacity, thermostability, resistance to corrosion, etc, so it is used as refractorymatter largely. In this paper, the material of flow-leading device of thesubmerged entry nozzle is the powder of ZrO₂. with the method of numericalsimulation, explaining the process of pressing molding and microwave sinteringguide device of the submerged entry nozzle, which is in order to better improvethe quality of products, save costs, improve the production efficiency and protectenvironment.For the process of flow-leading device of the submerged entry nozzlepressing molding, this paper firstly analyzes the basic theory of the process ofpressing molding; and then having numerical simulation on the pressing formingprocess with the finite element software of MSC.MARC, and analyzing thepressing forming process of the flow-leading device of the submerged entrynozzle in the Z direction displacement variation, stress and strain variation,variation regularity of relative density. Finally, analyzing the effects of thesuppression effect factors which are pressing mode, lubrication condition,pressing speed.For the process of flow-leading device of the submerged entry nozzle inmicrowave sintering, this paper firstly analyzes the basic theory of microwavesintering, proving it is feasibility with the method of microwave sintering; andhaving numerical simulation on the microwave sintering process with the finiteelement software of ANSYS; after that, analyzing the time needed in microwavesintering the flow guide device of submerged entry nozzle, and its formationtemperature gradient field; finally proposed: in order to get good mechanicalproperties of products, in microwave sintering time, we need prolong thesintering time, reduce the sintering rate and improve the microwave devicefrequency.In this paper, the simulation analysis of Pressure Molding process and Microwave sintering process, which provides a strong theoretical basis for themold of optimizing and improving product performance.