成形加工
Online ISSN : 1883-7417
Print ISSN : 0915-4027
ISSN-L : 0915-4027
25 巻, 5 号
選択された号の論文の33件中1~33を表示しています
目次
巻頭言
第 20 回秋季大会報告
セッション報告
解説 第 20 回秋季大会特別講演
解説 加飾技術
技術報告
日本の大学・試験・研究機関の研究 : 196
海外だより
会議・見本市だより
製品・技術紹介
論文
  • 村田 泰彦, 橋本 浩幸, 原 康博, 清水 隆弘, 柴崎 良介, 新田 和男, 菊森 一洋
    2013 年 25 巻 5 号 p. 234-240
    発行日: 2013年
    公開日: 2014/10/07
    ジャーナル フリー
    Flash, a molding defect in injection molding, is a serious problem as it reduces production efficiency and damages the mold. This study focused on flash generating at the divided face between the slide cores in a slide core type mold for cylindrical molded products. Strain sensors were attached to several parts of the mold, and the Relationship between flash generation and mold deformation was investigated, and the following results were obtained.
    First, the deformation of the slide core type mold was clarified during the injection molding process. With this mold structure, the slide cores are pushed by high melt pressure towards the mold base at the stationary mold side. This causes the mold base to deform, resulting in the formation of a gap at the divided face between the slide cores, and the generation of flash. It was also confirmed that flash starts to generate under the holding pressure condition at which strain of the mold starts to increase considerably.
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