頁籤選單縮合
題 名 | 不同背砂粒度及層數對精密鑄造陶殼模性能之影響=Effects of Backup Stucco Sizes and Layers on the Properties of Ceramic Shell Mold for Investment Casting |
---|---|
作 者 | 郭彥甫; 紀孟宏; 佳洲; 楊國和; | 書刊名 | 鑄造工程學刊 |
卷 期 | 37:3=150 2011.09[民100.09] |
頁 次 | 頁17-30 |
分類號 | 472.21 |
關鍵詞 | 精密鑄造; 陶殼模性能; 孔隙率; 透氣度; 熱傳行為; Investment casting; Ceramic shell mold properties; Porosity; Permeability; Heat transfer behavior; |
語 文 | 中文(Chinese) |
中文摘要 | 本研究主要在精密鑄造陶殼模背層製程中,探討不同背砂粒度組合及層數對陶殼模性能之影響。其中不同背砂粒度組合分為兩組,一組為顆粒較細之F(背砂60S)系列(F-60S, F-35S, F-22S),另一組顆粒較粗之C(背砂35S)系列(C-35S, C-22S),層數組合方式無論F系列或C系列均有3L、4L、5L及6L的組合。陶殼模性能方面,主要針對陶殼模破斷強度、高溫透氣度、孔隙率及乾燥時間進行最測。最後實際澆鑄並配合鑄造模擬軟體分析其熱傳行為。實驗結果顯示,不同背砂粒度組合方面,以F-60S及C-35S有較佳陶殼模性能。不同層數方面,以C-35S組合之層數有較佳陶殼模性能,但高溫透氣度則以F-60S組合較佳。陶殼模熱傅行為部分,實際澆鑄量測對不同背砂粒度組合之陶殼模溫降行為以C系列組合傅熱效果較佳,且使用鑄造模擬分析亦有相同趨勢。陶殼模澆鑄方面,使用C系列3L組合澆鑄304不銹鋼及A356鋁合金其陶殼模強度仍可承受高溫金屬液之衝擊。 |
英文摘要 | The effects of backup stucco sizes and layers on the properties of ceramic shell mold have been studied. Two different backup stucco sizes combinations were prepared: one group for stucco sizes of fine grain called F (60S for backup) series (F-60S, F-35S, F-22S), another stucco sizes of coarse grain group called C (35S for backup) series (C-35S, C-22S); and with different numbers of layers combination, 3L, 4L, 5L and 6L combinations were applied for both F series and C series. The properties of ceramic shell mold, such as MOR-green strength (pre-dewax), green strength (post-dewax), hot strength, fired strength, high temperature permeability, porosity and drying time were studied. And the practical metal casting experiment was conducted and solidification simulation software was applied for the analysis of the heat transfer behavior.The results showed, for backup stucco sizes, both the combinations of F-60S and C-35S had the better properties or ceramic shell mold. On the numbers of backup layers, the C-35S combination had the superior properties of ceramic shell mold, but F-60S combination had higher temperature permeability. On the heat transfer behavior of the ceramic shell mold, combination of C series had the better heat transfer behavior of ceramic shell mold, and the simulation results showed a good agreement. When the 3L combination of C series was applied, the strength of ceramic shell mold could take the impact of the high temperature molten metal of 304 stainless steel and A356 aluminum alloy. |
本系統中英文摘要資訊取自各篇刊載內容。