Despite the transfer and pouring melt the solid alumina density similar to the density of molten aluminum, the aluminum melt after entering inside, over a long enough period of time before sinking to the bottom of the crucible accompany. After the molten aluminum and an aluminum oxide film formed by oxidation, but only in contact with the aluminum melt side is dense, loose contact with the air side and a large diameter holes 60--100A its large surface area, adsorption strong, easily absorbed moisture scrap metal tender, there is a tendency of floating anti. Thus, the proportion of this oxide film and the aluminum melt is small, which is mixed with the melt, drifting very slow, difficult to remove scrap metal from the melt, the formation of pores too inclusions in the casting. So scrap metal recycling plant, aluminum melt transfer key is to minimize stirring the molten metal to minimize contact with the melt and air. 1, charge handling charge before use should be treated by blowing sand to remove surface rust, grease and dirt. Place not long, relatively clean surface of aluminum ingots and metal type can charge back without blowing sand recycling of scrap metal, but it should be mixed in the charge to eliminate iron filters and inserts, all of the charge in the Front should be preheated to remove moisture attached to the surface, to shorten the melting time of 3 hours or more. 2, charge management and rational conservation and management of storage charge of alloy to ensure quality is important. Charge should be stored in the temperature changes little, dry warehouse. Bidding scrap metal, scrap metal, scrap metal recycling Shengxin recycling scrap metal from the Linyi City Shengxin Limited. Linyi City Shengxin scrap metal recycling Ltd. (shengxin.tz1288.com) strong, credible, in Linyi, Shandong scrap metal industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Shengxin scrap metal recycling into the brilliant and you work for a better future!