In China "220V Cooling Fan" it has been widely used in the manufacture of pressure to engage in the process. A new fan base shown in Figure 1, is pressed out of the end. This Yun-member larger in size and requires clever and beautiful appearance of maggots, small allowance. Only die-casting technology to meet the investment requirements of the arrow. This press Yun "220V Cooling Fan" base, in addition to taking into account the pressure trickle cast adaptation process equipment performance requirements, and selecting good casting properties of the alloy, the more important is the right to vote arrows mold structure as it relates to the casting forming, and dimensional accuracy. I plant to overcome the difficulties on the basis of poor investment equipment, technical and complex, the Yin Shu and manufactured "220V Cooling Fan" base voltage terminal mode, and get better results.