Research On Key Technology Of Vertical Centrifugal Casting Experiment Equipment

Centrifugal casting is widely used in military,precision instrument manufacturing and aerospace fields.In the process of centrifugal casting of wear-resistant alloy,the temperature and cooling process,pouring mode and corresponding motion form of each node have important influence on the multiphase structure,microstructure and properties of the alloy.In order to study the influence of temperature,pouring form and movement of typical wear-resistant alloy materials in the whole process of melting-pouring-forming-cooling molding,this paper based on the guiding ideology of precooling process,that is,in the process of high temperature metal liquid flowing out from smelting furnace to entering casting,the temperature of metal liquid is reduced to half by forced cooling method a new type of vertical centrifugal casting test equipment was designed and its key technology was studied.Specifically include the following aspects:The overall structure design of vertical centrifugal casting machine based on pre-cooling process;the pouring head and casting of the vertical centrifugal casting machine adopt split structure,and can realize synchronous and asynchronous horizontal rotation.Mechanical structure design of smelting furnace;study of furnace temperature control,pouring metal liquid flow control technology.The requirement of precooling process is analyzed,the structure of double cooling system is designed,and the cooling control scheme is drawn up.The three-dimensional motion system structure in centrifugal casting process is designed and the motion control strategy is studied.The control strategy of vertical centrifugal casting test equipment is proposed,and the overall control scheme of vertical centrifugal casting machine based on programmable controller is put forward FAMEVIEW based data acquisition and monitoring software is designed and verified by simulation experiment of heating furnace.The research results of this paper will provide experimental technical support for the precise control of microstructure and properties of new alloy materials and amorphous materials,and lay the technical foundation for the development of key equipment for the experimental research of casting alloy materials and molding technology.