In mixed furnace casting, the first step is to mix the ingredients, then pour ultra-fine spherical aluminum powder into the mixed furnace, stir evenly, and then add flux for refining. The casting alloy ingot must be clarified for at least 30 minutes, and after clarification, the slag can be removed before casting. During casting, the furnace eyes of the mixing furnace are aligned with the second and third molds of the casting machine, which ensures a certain degree of maneuverability when the liquid flow changes and when changing molds. The furnace hole and casting machine are connected by a flow channel, and it is better to have a shorter flow channel to reduce aluminum oxidation, avoid vortices and splashes. When the casting machine is stopped for more than 48 hours, the mold should be preheated for 4 hours before restarting. The aluminum liquid flows into the mold through the flow channel, and the oxide film on the surface of the aluminum liquid is removed with an iron shovel, which is called slag scraping. After the the first mock examination is full, move the runner to the next mold, and the casting machine will move forward continuously. The mold advances in sequence, and the aluminum liquid gradually cools. When it reaches the middle of the casting machine, the aluminum liquid has solidified into aluminum ingots, which are marked with a melting number by the printer. When the aluminum ingot reaches the top of the casting machine, it has completely solidified into an aluminum ingot. At this time, the mold flips and the aluminum ingot is released from the mold, landing on the automatic ingot receiving car. It is automatically stacked and bundled by the stacker crane to become the finished aluminum ingot. The casting machine is cooled by water spray, but water can only be supplied after the casting machine has completed one full rotation. Each ton of aluminum liquid consumes approximately 8-10 tons of water, and in summer, it also needs to be accompanied by air blowing for surface cooling. Ingots belong to flat die casting, and the solidification direction of aluminum liquid is from bottom to top, with the upper part solidifying in the middle, leaving a groove shaped shrinkage. The solidification time and conditions of different parts of the aluminum ingot are not the same, so its chemical composition will also vary, but overall it meets the standards.

Vertical semi continuous casting is a sequential crystallization method. After the aluminum liquid enters the casting hole, it begins to crystallize on the chassis and the inner wall of the crystallizer. Due to the different cooling conditions in the middle and edges, the crystallization forms a form of low in the middle and high in the periphery. The chassis descends at a constant speed. At the same time, aluminum liquid is continuously injected into the upper part, creating a semi solidified zone between solid aluminum and liquid aluminum. Due to the shrinkage of the aluminum liquid during condensation and the presence of a layer of lubricating oil on the inner wall of the crystallizer, the solidified aluminum exits the crystallizer as the chassis descends. There is also a cooling water eye at the lower part of the crystallizer, which can spray cooling water onto the surface of the already extruded aluminum ingot for secondary cooling until the entire ingot is cast.