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| 題 名 | 樹脂液滴在多孔性矽砂層的滲透性質的研究=The Study of the Infiltration Ability of Resin Droplets Impinging on the Porous Layer of Sand Bed |
|---|---|
| 作 者 | 黃詔奎; 許富淵; | 書刊名 | 鑄造工程學刊 |
| 卷 期 | 41:3=166 2015.09[民104.09] |
| 頁 次 | 頁18-26 |
| 分類號 | 472.9 |
| 關鍵詞 | 樹脂液滴; 多孔性材質; 數值模擬; 樹脂砂模; 3D樹脂砂模列印技術; Resin droplets; Porous material; Numerical simulation; Resin sand mold; 3D resin sand mold print technology; |
| 語 文 | 中文(Chinese) |
| 中文摘要 | 樹脂黏結的砂模製造過程中,黏結劑的流體物理性質影響矽砂的混練,而且黏結劑與矽砂間滲透的效率,直接會影響與砂顆粒的黏結情況,進而影響到成形樹脂砂模的品質好壞。在3D樹脂砂模列印技術上,黏結劑液滴撞擊於砂床時,會受到黏結劑的物理性質(例如:黏度、密度、表面張力、酸鹼值等)以及多孔性砂床的物理性質(例如:顆粒大小、堆積密度、顆粒形貌)等影響。本實驗應用了計算流體的模擬軟體(Computational Fluid Dynamics, CFD),探討樹脂黏結劑液滴在多孔隙材質的砂床上時,量測黏結劑所能擴散黏結之範圍大小,並對模擬結果進行實際液滴試驗的驗證。 |
| 英文摘要 | In resin bonded sand mold manufacturing process, the mixing of silica sand with resin binder is influenced by the physical properties of the binder. Its permeability which is the distance of the binder mass penetrating into the sand particles also affects the strength of sand mold. For the resin sand mold prepared by 3D printing route, as the binder droplet impacts on the sand bed, the binding strength of the mold will be influenced by the physical properties of both the binder(e.g., viscosity, density, surface tension, pH),and the sand particles, (e.g., particle size, bulk density, particle morphology).In this study, Computational Fluid Dynamics (CFD) package was used for measuring the distance of diffusion range of resin binder into porous sand bed during the binder droplet contacting the bed. These modeling results are validated by the real experiments. |
本系統中英文摘要資訊取自各篇刊載內容。