Foundry Feed Casting Nozzle is used for all kinds of two-roll continuous Casting and rolling machines. The distribution state of the flow field and temperature field directly affects the plate shape.
The surface of the aluminum silicate Nozzle is treated with special coating of aluminum titanate, and the special process can effectively prevent the aluminum liquid from etching the Feed Casting Nozzle, and avoid the carbonization phenomenon. The fracture structure is fine and uniform lamellar fiber structure, which prevents the existence of flake floc tissue. The working surface coating is uniform and smooth, to prevent the occurrence of granular cracking and coating shedding phenomenon, to provide guarantee for high-quality cast tie plate. A Feed Casting Nozzle of various types and flow modes can be made according to the customer’s requirements.
In the process of aluminum alloy casting and rolling, the casting nozzle made of refractory material is essential. The adjustment of the opening of the casting nozzle and the adjustment of the plate shape are of great importance in the production of aluminum products.
The casting mouth comprises a relative upper pressing plate and a lower pressing plate, and a plurality of splitter blocks are arranged between the upper pressing plate and the lower pressing plate. To adjust the opening, tighten or loosen the threaded connector.
Because the upper splint and the lower splint are each integrated structure, there are the following disadvantages:
1. Can not use the opening to adjust the asymmetric plate type.
2. The opening of the casting nozzle cannot be adjusted in different regions.
3. The opening of the casting nozzle cannot be adjusted online. Therefore, the flatness of the casting nozzle is highly required.
4. High skill requirements for vertical plate workers and great difficulty in casting and rolling area.
Adtech, the manufacturer of Foundry Feed Casting Nozzle, studies the influences of casting and rolling speed, the outlet height of the Feed Casting Nozzle and the total length of the nozzle.
The numerical simulation results of melt with variable density and constant density are compared, and the distribution law of flow field and temperature field of high temperature shallow aluminum melt is revealed.
Melt flow velocity and exit temperature increase with the increase of casting and rolling speed. Changing the inlet velocity distribution can improve the uniformity of melt exit temperature and velocity.
The uniformity of outlet velocity distribution and temperature distribution can be improved by changing the number of splitter blocks.
The more uniform velocity and temperature distribution can be obtained by decreasing the cavity opening.
Increasing the length of the cavity can obtain more uniform melt outlet velocity distribution and more uniform temperature distribution.
It is reasonable that the apparent variable density is constant density in practical engineering application. The numerical simulation results and analysis conclusions provide important basis for the optimal matching parameters of continuous casting rolling especially rapid casting rolling.