Aluminum low density, but the intensity is relatively high, close to or more than high quality steel, plastic, can be processed into a variety of profiles, with excellent electrical conductivity, thermal conductivity and corrosion resistance, widely used in all kinds of non-ferrous scrap metal recycling industry, usage after the steel. Some heat-treated aluminum alloy may be employed to obtain good mechanical properties, physical properties and corrosion resistance. Duralumin case of AI-Cu-Mg system, generally contain small amounts of Mn, can be heat strengthened. Which is characterized by a large number of buy scrap metal hardness, but poor ductility. Super-hard aluminum case of Al-Cu-Mg-Zn-based acquisition of various scrap metal, can be heat strengthened, the highest strength aluminum alloy at room temperature. But poor corrosion resistance, high temperature softening quickly. Wrought aluminum alloys mainly Al-Zn-Mg-Si based alloy, although elements of many kinds of scrap metal was added, but the content of less, which has excellent thermoplastic, suitable for forging, so called forged aluminum. In order to prevent the oxide film formed in the cast, we need to let the metal, especially in milli turbulent state into the mold cavity. For most castings, the use of gravity casting method it is impossible to do this, because the sprue head height in order to speed up the flow rate turbulence occurs, so be sure to use anti-gravity die casting method or level of technology. Such filters slow down the speed of the metal flow to slow enough to prevent oxide production. Also to be injected into the mold cavity from the bottom, each level of the order of injection casting electricity should be carefully designed to avoid "waterfall" - die falling liquid metal from a higher level to a lower level, so that Freshmen metal oxide surface. Use of injection mold from the bottom of the method, liquid metal oxide layer on top of the sand will be promoted to the top level of the box and into the top riser, so it will not damage the castings. Where recycling 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!