The surface of the aluminum material has an uneven thickness of the oxide film, sometimes also absorbs water, is mixed with sand, sticky with oil stains, and painted with paint. When melting, the aluminum material is further oxidized in a high-temperature environment, the thickness of the oxide film increases, and it reacts with moisture to […]
Flux degassing of molten aluminum alloys is a casting process designed to remove hydrogen dissolved in the melt. Liquid aluminum will actively dissolve hydrogen, which is formed by chemical reaction with water vapor: 2Al + 3H2O = Al2O3 + 6H The solubility of gaseous hydrogen at the melting point of liquid aluminum (1220.7°F / 660.4°C) […]
Aluminum alloy smelting is one of the most important process links for the production of high-quality casting rods. Flux refining process for aluminum is an important process in aluminum alloy smelting. The main components of fluxes currently on the market are chlorides and fluorides. If the process is not properly controlled, slag, pores, coarse grains, […]
In the smelting process of aluminum and aluminum alloys, hydrogen and oxidized inclusions are the main substances polluting the aluminum melt. Aluminum easily forms A1202 or sub-alumina (Al2O and A10) with oxygen. At the same time, it is also very easy to absorb gas (H) whose content accounts for 70-90% of the total gas in […]
