| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2013: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2012: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2011: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Research Abstract |
Flash is a defect that occurs in injection molding. In this study, the flash generation measurement mold was proposed to evaluate the secondary flash generation mechanism. This mold can open the gap of arbitrary size between the mold parting faces at certain times during injection molding. Using this mold, flash generation behavior was investigated at various gap sizes between the mold parting faces and melt pressure. As a result, it was clarified that the secondary flash began to be generated immediately after the gap reached a constant size and that the secondary flash length decreased as the timing was delayed for gap opening.
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