| 摘要 |
PROBLEM TO BE SOLVED: To provide a mold manufacturing method by a shape corrected by the difference between the analytical value of the shapes of a molding, a resin channel reaching a molding cavity, a flow aid runner connecting the molding cavity outside the molding, etc., and the actual value when molded practically. SOLUTION: In the mold manufacturing method for resin molding, the resin packing completion time of each part in the cavity is obtained by a resin flow analysis from a prescribed input and parameters, a shape making the resin packing completion time of each part in the cavity equal is determined, and molding is carried out by a testing mold. The resin packing ratio of another cavity part in relation to a cavity specified part is calculated from an actually measured resin packing state to obtain the change of the resin packing ratio between the cavity specified part and the other cavity part by the analysis. The rate of change is corrected by a correction ratio obtained from the actually measured resin packing ratio. The mold is manufactured by the data on the shape of the resin channel 2 reaching the molding cavity when the rate of change is 1 and the data on the shape of the flow aid runner 3 connecting the molding cavity outside the molding. COPYRIGHT: (C)2006,JPO&NCIPI
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