頁籤選單縮合
題名 | 以多段式總容量法分析模與鑄件間之熱傳=Analysis of Metal-Mold Interfacial Heat Transfer by Using Multi-zone Lumped Capacitance Method |
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作 者 | 陳寶如; 趙隆山; 林宇凡; | 書刊名 | 鑄造工程學刊 |
卷期 | 42:4=171 2016.12[民105.12] |
頁次 | 頁1-8 |
分類號 | 472.2 |
關鍵詞 | 方向性凝固; 砂模鑄造; 界面熱傳係數; 多段式總容量法; Directional solidification; Sand casting; Interface heat transfer coefficient; Lumped method; |
語文 | 中文(Chinese) |
中文摘要 | 方向性凝固與砂模鑄造是工業界相當重要的製程技術,由於模與鑄件間不是緊密接觸,在模與金屬界面之熱傳分析中,需要一界面熱傳係數來估算金屬界面之熱通量。本研究以錫鉛合金(Sn-10wt%.Pb),透過多段式總容量法搭配實驗數據來估算其在凝固過程中界面熱傳係數隨時間變化。然後再將估算界面熱傳係數帶入金屬鑄件之凝固熱傳模擬中作計算,發現模擬溫度與實際溫度有很好一致性,可證明多段式總容量法之可行性。 |
英文摘要 | Directional solidification and sand casting are very important in industrial manufacturing technology. Due to the non-perfect contact between the mold and the casting, an effective heat transfer coefficient is needed to estimate the heat flux at the mold/metal interface in the heat transfer analysis. In this study, tin-lead alloy (Sn-10wt% Pb alloy) is utilized as the casting materials. For the directional solidification and sand casting, the multi-zone lumped capacitance method with the experimentally measured temperature data is used to estimate the effective heat transfer coefficients at the metal/mod interface. The predicted heat transfer coefficients are taken into the solidification simulation of the casting. From the results, it is found that the computed temperatures are consistent with the measured ones. Consequently, it can be confirmed that the multi-zone lumped capacitance method is feasible to calculate the effective heat transfer coefficients. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。