非ニュートン流体における押出し金型内部流れの高効率・高精度解析手法の開発と実用化

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  • The development and implementation of the efficient/accurate numerical methods for non-Newtonian flows inside a slot die
  • ヒニュートン リュウタイ ニ オケル オシダシ カナガタ ナイブ ナガレ ノ コウコウリツ ・ コウセイド カイセキ シュホウ ノ カイハツ ト ジツヨウカ

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金沢大学先端科学・社会共創推進機構

In this study, the fast numerical computation method by using simplified momentum equations, which exactly clarified the flow state inside a slot die, was developed, in order to obtain higher coating quality. The computation results elucidated the dependence of the uniformity of coating thickness on non-Newtonian characteristics. In addition, it was found that the computational procedure enables us to seek the optimum internal figures of a slot die immediately. The method was extended to a variety of rheological models, such as Power-Law, Ellis and Hershel-Bulkley model. As a result, the computation technique industrially contributed to the development of precise coating productions, such as optical elements, semiconductor and LCD display components. © 2011 The Society of Rheology, Japan.

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