Aluminum Titanium Boron is recognized as the best refining material for aluminum and aluminum alloy, which can prevent the formation of thick equiaxed crystal, columnar and feathered crystal, and improve the mechanical and physical properties of aluminum and aluminum alloy. The mechanism of action of ALTIB is closely related to TiAl3 and TiB2. The size and activity of these two initial nucleus are important factors to determine quality. When ALTIB are added into the liquid melt, a large number of heterogeneous nucleation cores are released, which can be used as foreign nucleation during the solidification of the melt and affect the nucleation process of the crystallization, thus refining the alloy grains. There are widely using types of ALTIB for adding ,such as Waffle ingots, Sticks, CCB(Cut casting bar)and online runner in launder. Online adding has the advantages of good effect, convenience, economy, flexible adjustment and easy automation.