solidification porosity 中文意思是什麼
solidification porosity
解釋
固化氣孔- solidification : n. 團結；凝固；【化學】固體化（作用）。
- porosity : n. 1. 多孔性。2. 【物理學】孔積率；孔度，隙度。3. 多孔部分；多孔結構；多孔的東西。
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The ultimate aim of the numerical simulation on temperature field in castings solidification process is for eliminating shrinkage / porosity or limiting them within the user ' s permission
鑄件凝固過程溫度場數值模擬為最終消除縮孔縮松缺陷或將其限制在用戶允許的范圍內，以獲得質量合格的產品提供了非常有效的手段。 -
On the basic of the detailed analysis on main causes and main prediction methods of casting shrinkage / porosity, we put forward two methods to describe the solid phase rate of materials solidification. one is liner - distributing method, and the other is parabola - distributing method. and then, we apply the former to the system
本文在充分分析鑄件縮孔縮松產生機理與主要預測方法的基礎上，提出了材料凝固固相率的線性分佈法和拋物線分佈法，並將前者應用於系統中；同時提出了溫度梯度法和新山判據法的實現演算法，此演算法具有一定的靈活性。 -
Temperature field of hollow ingot solidification is simulated by fem. to different mould, effect of heat transfer coefficient between inner sleeve and cooling medium and thickness of core refractory on final position of solidification, the highest temperature of inner sleeve against cooling medium, and shrinkage cavity and porosity are compared. in addition, change of temperature in typical position of core refractory is also compared
對空心鋼錠凝固過程的溫度場進行了有限元分析，對不同錠型結構的芯部換熱系數、耐火材料厚度對最終凝固位置、內筒壁最高溫度及縮孔疏鬆的影響進行了對比，並討論了耐火材料典型部位的溫度隨凝固時間的變化。 -
Abstract : temperature field of hollow ingot solidification is simulated by fem. to different mould, effect of heat transfer coefficient between inner sleeve and cooling medium and thickness of core refractory on final position of solidification, the highest temperature of inner sleeve against cooling medium, and shrinkage cavity and porosity are compared. in addition, change of temperature in typical position of core refractory is also compared
文摘:對空心鋼錠凝固過程的溫度場進行了有限元分析，對不同錠型結構的芯部換熱系數、耐火材料厚度對最終凝固位置、內筒壁最高溫度及縮孔疏鬆的影響進行了對比，並討論了耐火材料典型部位的溫度隨凝固時間的變化。 -
The problems in magnesium alloy welding which include the solidification cracking, the appearance of porosity during solidification and large distortion of the welded joint are analyzed
分析了鎂合金在熔焊過程中存在容易產生氣孔、裂紋及焊后變形量較大等問題。
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