Research on Rheological Characteristic of Molten Al and Al Alloy through Stirring Torque
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摘要: 從理論分析將牛頓定律中剪切應力和剪切速率的關系轉換為攪拌扭矩和轉速的關系,并通過實驗進行驗證,理論推導和實驗的結果非常吻合,此方法可以用來判斷熔體的流變特性,也可以間接衡量增粘過程的效果。Abstract: The relation between the shear stress and shear rate in the Newtonian law was shown by the relation between the stirring torque and revolution through the theoretical analysis. By means of the relation between the stirring torque and the revoludon,not only the rheological characteristic of the molten A1 alloy can be identified, but also the effect of the increasing viscosity can be determined. The method for the producing porous A1 can be conveniently controlled.
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Key words:
- stirring torque /
- Al alloy /
- rheological characteristic /
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