| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem that testing injection molding has been repeated many times so far to determine a pressure holding starting pressure from an obtained pressure curve, increasing a test man-hour. SOLUTION: A pressure Ps when the pressure curve H reaches the first trough J after passing a peak is found out and made the pressure holding starting pressure to be used for pressure control in succeeding resin molding. Since the pressure holding starting pressure is determined from the pressure curve, a set pressure can be obtained by the testing injection molding of one time, reducing the test man-hour. COPYRIGHT: (C)2003,JPO
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