What are the properties and characteristics of non-stick aluminum castables?
Non-stick aluminum castables are characterized by high volume density, strength, good thermal shock stability, and strong moisture resistance. Moreover, with the process support of chemical components such as flux, it has strong corrosion resistance, erosion resistance, and slag resistance to liquid aluminum.
Non-stick aluminum castables are mostly used in aluminum melting furnaces. During the smelting process, the aluminum melting furnace will generate a large amount of aluminum ash and aluminum liquid. The generated impurities will enter the aluminum liquid and pollute the purity of the aluminum liquid, directly affecting the performance of the aluminum alloy. The performance of non-stick aluminum refractory castables not only does not produce aluminum ash during use, but also resists aluminum ingots from falling impurities into the aluminum water, and also functions to clean the aluminum liquid.
The use of non-stick aluminum castables in aluminum melting furnaces can extend the service life of the aluminum alloy melting furnace. No corundum will form during the aluminum smelting process. While preventing the metal aluminum solution from reacting, it can also reduce the adhesion rate of the aluminum liquid and improve the quality of the aluminum melting furnace. Anti-seepage ability. During the melting process of aluminum, no aluminum ash is produced, no corrosion occurs, and no nodules are formed. This is the biggest advantage of non-stick aluminum refractory castables, and it can also prevent impurities from entering the aluminum alloy and affecting the quality of the aluminum alloy.
The production process of non-stick aluminum castables is different from that of general high-aluminum castables. Composite ultrafine powder needs to be added to reduce the porosity and pore diameter of the castables. The application of ultrafine powder technology can prevent the adhesion and adhesion of aluminum liquid. penetration. Non-stick aluminum refractory castables are equivalent to adding a variety of additives to high-aluminum castables to make the castables denser, and the function of the additives forms a reflective layer in the castables. This function is like coating a glass on the glass. A layer of paraffin wax prevents the aluminum liquid from sticking to the castable.
When the castable is used on the lining of the aluminum melting furnace, if the quality is unstable, it will affect the service life of the aluminum melting furnace, and it is directly related to the production quality of molten aluminum. Therefore, the non-stick aluminum castable produced using a special process, due to its inherent quality characteristics, is completely non-stick to aluminum, does not hang slag, and does not produce aluminum ash during the aluminum smelting process.
