The key process of explosive clad steel plate is explosion compounding,heat treatment,splicing and uncombined area repair welding.Introduce the explosion welding technology of 2205+Q345 C duplex stainless steel,obtaining the ideal bonding quality by controlling the plate spacing,explosive formulation,explosive density,thickness,foundation and so on.Selecting a reasonable heat treatment process to eliminate the explosion welding stress,and also obtain good mechanical properties of the substrate and ensure excellent corrosion resistance of the coating.Meanwhile,in order to meet the requirements of the standard,through the quality control of the splicing of the coating and the repair of the uncombined area,excellent weld performance is also obtained.Thus,the mechanical properties,corrosion resistance and comparison of the 2205 duplex stainless steel composite plate meet the technical requirements.