2013 Fiscal Year Final Research Report
Development of a Mold for Flash Generation Measurement
| Project/Area Number |
23560133
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Production engineering/Processing studies
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| Research Institution | Nippon Institute of Technology |
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Principal Investigator |
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| Project Period (FY) |
2011 – 2013
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| Keywords | プラスチック / 射出成形 / 金型 / 計測 / バリ |
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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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