The purification mechanism of ceramic filter is as follows: obstruction

absorption and rectification effect. The foam ceramic filter exhibits excellent rectification effects in low pressure casting A356.2 aluminum alloy wheel

and the crack in the surface layer of the wheel can be greatly eliminated. In addition

the tensile strength

yield strength and elongation of the wheel keep stable by means of the foam ceramic filter as a result of removing inclusions in aluminum melt

avoiding the sharp deterioration of mechanical properties of the alloy resulting from a few coarse inclusions. However

the tensile strength and yield strength of the alloy can not be obviously improved due to the existence of fine inclusion. It is beneficial for the improvement of mechanical properties of the wheel with the foam ceramic filter due to the removal of the coarse inclusion in aluminum melt.