The effects of several fluxes on purification, microstructures and properties of A00 aluminium have been studied. The experimental results and analyses indicate that many cracks and large porosities exist in the surface film above the melt purified by C_2Cl_6 and that the film is floc and mostly composed of Al_2O_3 and pure aluminum, which carries many carbon particles and AlCl_3 not fully volatilized. And then over 50 percent of the all-melting residue is pure aluminum, which is one of the major reasons for high melting loss. Moreover, because of a mass of gas bubbles and a state of seethe, there exist many inclusions which size is under 10 mu m in the microstructure of A00 aluminum purified with C_2Cl_6 or fluxes containing C_2Cl_6. With this purifying method, the aluminum crystal grains are extended along the radius that was observed firstly and the average crystal size of A00 aluminum are about 100 mu m~150 mu m. In addition, small size inclusions have little affected on tensile strength and micro inclusions under l0 mu m have little affected on elongation.
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机译：研究了几种通量对A00铝的纯化，微观结构和性能的影响。实验结果和分析表明，在C_2Cl_6纯化的熔体上方的表面膜上存在许多裂缝和大孔隙率，并且薄膜是絮状物，主要由Al_2O_3和纯铝组成，含有许多碳颗粒和AlCl_3未完全挥发。然后超过50％的全熔化残渣是纯铝，这是高熔化损失的主要原因之一。此外，由于含有C_2Cl_6或含有C_2Cl_6的C_2Cl_6或含有C_2Cl_6的C_2Cl_6的C_2Cl_6纯化的A00铝的微观结构，存在许多存在许多夹杂物的许多夹杂物，其尺寸在A00铝的微观结构中均匀。利用这种净化方法，铝晶粒沿着首先观察到的半径，A00铝的平均晶体尺寸约为100μm〜150μm。此外，小尺寸的夹杂物对拉伸强度影响很小，L0 mu m下的微夹杂物对伸长率几乎没有影响。
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