In terms of secondary aluminum smelting technology, the commonly used degassing method is to spray gas into the aluminum alloy liquid, and use the principle of partial pressure to diffuse the hydrogen in the alloy liquid to the bubbles to achieve the purpose of degassing. In addition to spray guns, porous refractory bricks, and rotating blades, the jet degassing process also uses electromagnetic stirring and vacuum technology to degas. The jetting gas includes N2, Cl, Ar, etc.
In terms of secondary aluminum smelting equipment, there are many furnace types available for secondary aluminum smelting, the most commonly used are double-chamber melting furnaces, side well furnaces, etc. After the dual-chamber melting furnace adopts the smoke-returning technology, a combustion gas that is harmless to the environment is formed, and because the furnace is a reducing atmosphere, there is little metal burning loss. On the other hand, the double-chamber melting furnace also has the characteristics of a wide variety of materials that can be loaded, a large range, no molten salt, high thermal efficiency, low energy consumption, safe operation. The side shaft furnace is composed of a main smelting chamber, a scrap chamber and a pump chamber. Its main characteristics are high thermal efficiency and fast melting speed.
The main direction of the development of smelting technology and equipment is the automation of the operation process, the use of new refractory materials and new fluxes. AdTech keeps focusing on the manufacture of metallurgical materials and Alu foundry fluxes.
Our fluxes include refining flux, covering flux, deslagging flux, oxide removal flux, and granular flux. The granular refining flux is basically smoke-free and non-toxic when used, and the effect of removing inclusions is far better than that of the traditional powder mixed refining agent. The effect of removing alkali metal sodium, lithium, and calcium reaches the level of refining active chlorine-containing gas. At the same time, the burning loss of aluminum can be significantly reduced.