Abstract:Pb-Ca-Ag based ternary and multicomponent alloy plates show obvious advantages in reducing oxygen absorption potential, corrosion resistance and creep resistance, and can reduce the amount of silver used in plates by about 40%, but there are also problems in using, such as easy deformation of plate, fast decay of electrical efficiency, and short life of plate, which seriously restrict the popularization and application of multicomponent alloy plates. By optimizing the grain boundary of Pb-Ag-Ca-Sr-La multicomponent alloy anode plate, the tensile strength, hardness and conductivity of Pb-Ag-Ca-Sr-La multicomponent alloy anode plate are increased by 5.26%, 7.03% and 6.25%, respectively, the multicomponent alloy anode plates with good deformation resistance and stable electrical efficiency are prepared, which is more suitable for high acidity, high impurity and high current density electrolysis process.