Flux for aluminum smelter is an important auxiliary material used in aluminum alloy smelting. The main components of current fluxes on the market are chloride and fluoride. Among them, chloride has strong water absorption and is easily damp. Therefore, the raw materials used in flux production must be dried. Completely remove moisture, seal the package to prevent damage during transportation and storage, and pay attention to the production date. If the storage date is too long, it will also absorb moisture.
AdTech refining flux is white with slightly gray powdery fine particles. The main ingredients are chloride and ettringite, as well as other compounds. After proper heat treatment and screening, it becomes a uniform size, which is beneficial to transfer to the bottom layer of molten aluminum in a refining tank with (N2 or Ar) gas as the carrier. Through the physical and chemical changes of the aluminum melt, many small bubbles are formed, which are incomplete contact with the aluminum melt, thereby separating hydrogen and other harmful gases.
At the same time, the adsorption and fusion compounds contained in the refining flux can strongly adsorb and fuse oxides and floating bodies, and adhere to the bubbles, and are brought to the surface of the molten aluminum as the bubbles rise, thereby achieving degassing and slagging. The purpose is purification.
In the melting process of 6063 aluminum alloy, if fluxes such as refining agent and covering agent absorb moisture, the liquid aluminum will absorb hydrogen to varying degrees.
It is also important to choose a good preparation and a suitable refining process. At present, most of the refining flux for aluminum smelter is powder refining flux. This refining method can make the refined preparation and the aluminum liquid fully contact, so that the efficacy of the refined preparation can be maximized.