There is a thick layer of dross on the surface of molten aluminum and aluminum alloy after melting and refining. There are more metallic aluminum, metallic and nonmetallic oxides in the dross.The role of slagging agent is to effectively improve the wettability of aluminum slag, reduce the surface tension of aluminum slag, under the agitation of liquid aluminum and slag effectively separated and slag into dry powder slag, reduce the loss of liquid aluminum
