A new technique was put forward to strengthening infiltrating effects through centrifugal forcing Zn alloy melt flow through ceramic foam assembly with high density and large thickness.The results show that the tensile strength and elongation of the zinc alloy whose melt is infiltrated by the method proposed are improved by 12.26%and by 30.37%

respectively

compared with those of the alloy without infiltration treatment

and the method is obviously superior to the flux refinery in refining effects.The structure of the alloy infiltrated was investigated by SEM（scanning electron microscope） and OM（optical microscope）.The results indicate that the inclusion with more than 15 μ m in size can be effectively removed from the alloy by strengthening infiltration

and the fracture mechanism of the alloy is characterized by quasi-cleavage mode with large region dimple from typical brittle cleavage mode.