In the continuous development of surface modification technology, an electrospark deposition technology has emerged.The process under the effect of electric field, the instantaneous high temperature, high in the parent metal surface, infiltration of ion state of metal ceramic material at the same time, the formation of a surface metallurgical combination, and instantaneous phase transformation in the parent metal surface at the same time, the formation of martensite and fine austenitic organization (20).This process is different from welding, spray plating or element infiltration. It should be between the two.It makes good use of high abrasion resistance, high temperature resistance and corrosion resistance of metal ceramic materials.Die - casting die surface treatment is a new way.














