エポキシ樹脂成形撹拌槽内における充填材粒子分散状態の数値シミュレーション

环氧树脂成型搅拌槽内填料颗粒分散状态的数值模拟

• 批准号: 06855086
• 负责人: 新井 和吉
• 金额: $ 0.51万
• 依托单位: Nihon University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Encouragement of Young Scientists (A)
• 财政年份: 1994
• 资助国家: 日本
• 起止时间: 1994 至 无数据
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-06855086/
• 关键词: シミュレーション; 撹拌; 数値解析; エポキシ樹脂; 成形

エポキシ樹脂は耐水性、耐薬品性、電気絶縁性等の特徴を有し、半導体分野における封止材として多用されている現状にあるが、このエポキシ樹脂の成型品においてその均一性に問題が生じる場合があり、同樹脂の品質管理の面から問題が指摘されている。そこで、本研究ではエポキシ樹脂の成型プロセス中における、撹拌による樹脂中への充填材粒子の分散過程および分散状態の影響について着目し、これらが成形樹脂の品質に多大の影響を及ぼすものと考え、工学的理論に基づき数値シミュレーションにより、樹脂および固体粒子の流動状態や分散状態について定量的に求め、表示する方法を確立することを目的として行った。研究の第一歩として、まず樹脂成形固液撹拌槽内における固液流動の数値シミュレーション手法の確立を行った。その結果、当初の計画通りの数値シミュレーション手法及び手順により、板型翼撹拌槽内における液相の流動状態として連続の式、運動方程式、流動モデル式を連立させて差分法によって離散化し、圧力速度同時過緩和法を用いて槽内の三次元速度分布を得、ついで、任意の粒径、密度を有する固体粒子を粒子濃度に応じた個数分、液相の三次元速度分布中に発生させ、粒子の運動方程式により複数の粒子の挙動の解析を行い、撹拌槽内の粒子の分散状態を求めることができた。ついで、撹拌槽内の充填材粒子分散状態の数値計算結果の妥当性を検証する可視化実験装置を作製し、可視化実験により本数値シミュレーション手法の妥当性を確認した。さらに今後、本研究で確立した数値シミュレーション手法を用いて、固体粒子濃度や翼回転数等の操作条件を変化させ、槽内における流動状態や粒子分散状態等を求め、この数値シミュレーションによる解析結果に基づき、粒子の分散状態を定量的に数値化し、表示する手法の研究へと拡張・応用して生きたい。

Water resistance, corrosion resistance, electrical properties and other special properties, such as water resistance, corrosion resistance, electrical properties and other special properties, such as water resistance, resistance, electrical properties and other special properties, such as water resistance, corrosion resistance, electrical properties and other special properties, such as water resistance, corrosion resistance, electrical properties and other special properties, such as water resistance, corrosion resistance, electrical properties, etc., the quality management of the same kind of grease, the quality management of the same kind of grease, the quality management of the same kind of grease, the quality management of the same kind of grease, and so on. The purpose of this study is to determine the size of the filler particles in the grease, the process of dispersion, the state of dispersion, the size of the product, the size of the product, the size of the test, the basic theory of engineering, the number of materials, the size of the filler, the size of the fat, the size of the filler, the size of the filler, the size of the fat, the size of the filler, the size of the fat, the theory of engineering, the theory of engineering, and so on. The quantitative calculation of the flow state of solid particles and the dispersion state of solid particles indicates that the method ensures that the objective of the method is accurate. In this paper, the number of solid-liquid flow in grease forming solid-liquid mixing tank was studied. The results of the simulation, the numerical simulation results, the numerical simulation method and the manual test, the liquid phase flow in the plate-type airfoil mixing tank, the dynamic equation, the flow equation, the differential method, the differential method, and the method of simultaneous force and velocity are used to obtain the cubic velocity distribution in the tank, the flow equation, the dynamic equation, the finite difference method and the numerical method. The density is divided into three parts: the number of solid particles, the number of particles in the three-dimensional velocity distribution of liquid phase, the equation of particle motion, the complex number of particle dynamics, and the dispersion of particles in the mixing trough. The number of particles dispersed in the filling material in the mixing tank is calculated. The results show that the device is suitable, and the device can be used to verify the accuracy of the method. In the future, in this study, we made sure that the operating conditions such as the operating conditions, such as the number of solid particles, the number of solid particles, the state of flow, the state of dispersion, the state of dispersion, etc., the results of the analysis of the results of the analysis, the quantitative analysis of the dispersion state of particles, the quantitative calculation of the distribution of particles, and so on. It means "technique", "study", "study", "use", "give birth to".