Continuous lubricating crystallizer for aluminum alloy semi-continuous casting

The invention relates to a continuous lubricating crystallizer for aluminum alloy semi-continuous casting. The inner wall of the crystallizer is inlaid with a graphite lining, and an independent oil chamber is arranged in the upper cover. The graphite lining has a vertically symmetrical structure and taper. The crystallizer body There are two separate upper and lower water chambers, the upper water chamber and the lower water chamber respectively have independent water inlets, the upper water chamber and the lower water chamber are respectively equipped with water baffles, and a row of water spray holes is set at the bottom of the upper water chamber. A row of water spray holes is also arranged at the bottom of the lower water chamber, and the angles of the water spray holes of the upper water chamber and the angles of the water spray holes of the lower water chamber are inconsistent in a staggered shape. During casting, the oil seeps into the graphite lining through the oil chamber to form a continuous oil film, which not only increases the lubrication effect of graphite, but also plays a role of heat insulation and reduces the primary cooling of the ingot. Two independent water chambers realize single or double water chambers. At the same time, water is supplied to increase the secondary cooling effect on the premise of ensuring that no thermal cracks occur in the initial stage of the aluminum alloy ingot, and realize a low liquid level inside the crystallizer, which significantly improves the surface quality of the ingot.