Nozzle and Tip for Molten Metal Continuous Casting

Nozzle and Tip

AdTech ceramic fiber caster nozzle and tip is used for crystallization forming and size control of aluminum plate in the casting production line. It adopts nano-scale fiber composite material, and the process by high-precision equipment. AdTech casting tips and nozzle has moderate density, good thermal insulation, precise size, high oxidation resistance, and low deformation.

Nozzle and tip provides a stream of molten metal to the continuously advancing mold. Nozzle and tip can have an exit opening width which can range from 3 or 4 inches to 72 inches, depending on the width of the continuously advancing mold and whether several openings are used. Further, tip can have an exit opening height which can range from about 1/4 inch to about 1 inch, depending on the application.

For purposes of casting quality products free of surface defects, the flow rate of molten metal from the exit entrance of tip along with molten metal temperature must be uniform. That is, flow in tip should be substantially free of molten metal recirculation, detention or boundary layer separation or thick laminar boundaries. It is believed that boundary layer separation or recirculation, detention of molten metal in nozzle and tip, particularly adjacent nozzle exit, can lead to surface defects such as streaking on the surface of the slab or other products produced, particularly in the case of aluminum alloys.

Aluminum continuous casting nozzle is suitable for use in the continuous casting of metals such as aluminum alloy. More specifically, it is used as a member which supplies molten alloy liquid to a movable mold from a tundish in a continuous casting system. By performing continuous casting using casting tip and nozzle, practically infinitely long cast alloy can be obtained. Particularly, using the casting nozzle makes it possible to effectively prevent the molten liquid leakage, and to obtain a cast alloy that is superior in terms of surface quality.