Molten aluminum degasser can achieve the purpose of purifying the aluminum alloy. With the development of the automotive industry, more and more aluminum alloy castings are used, and the requirements for casting are becoming higher and higher. In addition to ensuring the chemical composition, mechanical properties, and dimensional accuracy. Aluminum alloy castings are not allowed to have casting defects, such as pores and slag holes. Liquid aluminum purification treatment can improve the overall quality of aluminum alloys. The refining effect has an important influence on the formation of holes and inclusions, and directly affects the physical and mechanical properties of aluminum alloy castings. Therefore, we must pay attention to the gas and inclusions in the aluminum liquid. And it needs to remove the gas and inclusions in the aluminum liquid.
Molten Aluminum Degasser
The gas in the liquid aluminum is mainly hydrogen. Hydrogen is almost insoluble in solid aluminum, but it is very soluble in liquid aluminum. Because of the different solubility, hydrogen tends to escape from the melt. When the hydrogen pressure is greater than the surface tension and the hydrostatic pressure, bubbles are formed, which in turn creates pinholes in the casting. There is a strong interaction between the inclusions in the aluminum alloy and the gas. And the hydrogen content in the aluminum liquid is greatly affected by the inclusions. In the case of the same hydrogen content, the higher the inclusion content, the higher the pinhole rate. On the contrary, when the impurity content in the aluminum liquid is very low, the hydrogen content is also very low. Therefore, it is equally important to remove impurities and Hydrogen simultaneously.
AdTech degassing unit can meet the production of aluminum alloy with high technical performance requirements. Aluminum degassing machine is between the furnace and the casting machine, the main function is removing hydrogen and other residues. AdTech molten aluminum degasser equipment adopts new high silicon melting material manufacturing technology. The main components include a mechanical drive, box lid, rotor, and heater.