Aluminum is the industry's most widely used non-ferrous structural materials, motor recovery, have been widely used in aviation, aerospace, automotive, machinery manufacturing, shipbuilding aluminum and chemical industries. Major alloying elements are copper, silicon, magnesium, zinc, manganese, minor alloying elements are nickel, iron, titanium, chromium, lithium and so on. Cast aluminum industry has developed rapidly, as of 2011, the Department of renewable cast aluminum output has reached 4.28 million tons, and then the native system cast aluminum output rose to 1.84 million tons. With the global economic growth and expanding use of aluminum, Hubei engine recovery, global consumption of aluminum increased from about 8.69 million tons in 2001 to about 15.5 million tons in 2009, a compound annual growth rate of about 7.5 percent. 2012, global aluminum consumption will reach about 16.69 million tons. June 2012, China exported 41,102 tons of aluminum ingots, up 21.53 percent reduction in 2011, the ring than 20.86 percent decrease in May, up the chain there are the more obvious decline. In order to prevent the oxide film formed in the casting, Zhejiang recovery engine, 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. Henan recovery engine | Engine Recycling | Sun Shine recycling scrap metal 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!