Hydrogen is easily absorbed molten aluminum. Unfortunately, the molten aluminum alloy, the hydrogen solubility is substantially greater than the solubility in solid aluminum. When the aluminum alloy solidification, the hydrogen discharged from the melt, shrinkage porosity expanded and enlarged, accompanied by the loss of mechanical properties. Hydrogen general charge from wet and humid melting tool, but the main source of hydrogen is moisture in the environment. Because almost difficult to prevent hydrogen adsorption buy scrap smelting meter, you must remove the hydrogen from the melt before pouring. The most commonly used method is to melt into the drum to dry nitrogen or argon bubbles. The use of chlorine to remove hydrogen is particularly effective. However, the meter of waste recycling, because of environmental and safety reasons often preclude its use in production. Secondary wrought aluminum alloy: 2000 series aluminum representatives 2024,2A16 (LY16), 2A02 (LY6). 2000 series aluminum is characterized by high hardness, which the copper content, probably in about 3-5%. 2000 series aluminum rod is aviation aluminum in conventional industrial infrequent application. Three Lines: 3000 series aluminum alloy on behalf of 3003, 3A21 based. Our 3000 series aluminum production process is relatively good. 3000 series aluminum rod is composed of manganese as a main ingredient. Content is between 1.0-1.5, is a rust-proof function better. Aircraft four lines: 4000 series aluminum bar representatives 4A01 4000 series aluminum is higher silicon content. Usually silicon content of 4.5-6.0%. Are used in construction materials, machinery parts, forging materials, welding materials; low melting point, good corrosion resistance, the product description: a heat-resistant, wear-resistant properties to buy scrap meters, the old meters, Shengxin scrap metal recycling waste from the Linyi City Shengxin Metals Recycling 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!