The aluminum melt caster tips for aluminum alloy casting and rolling include a flat box-shaped nozzle body formed by a top plate, a bottom plate, a baffle bar, and two side plates.
There are two ears with a right triangle in cross-section in the casting nozzle body. The two ears are respectively arranged at the corners formed by the two side plates and the top plate, the bottom plate and the retaining bar, and the two right-angle sides and sides of the ears and the barrier are fixedly connected. An aluminum inlet is opened in the middle of the stop bar, and a nozzle opening is opened at the end of the casting nozzle body corresponding to the stop bar. A central shunt block and surrounding shunt blocks, central shunt block, and surrounding shunt blocks are arranged in the casting nozzle body. The wedge-shaped ends are arranged towards the nozzle mouth.
By adjusting the size of the shunt blocks, the distance between the shunt blocks and the angle of the ears, the liquid metal flow at the edge of the casting nozzle is relatively short, the temperature drop is small, and the flow line dead angle is avoided, and the uniformity of the temperature of the aluminum alloy liquid is ensured.
The aluminum melt caster tips can ensure the uniform distribution of the aluminum alloy melt through a reasonable flow distribution method, which provides an effective guarantee for improving the reliability and stability of the product quality.
The surface of the casting nozzle material is treated with a non-stick aluminum coating by dipping, spraying or brushing, so that the surface of the casting nozzle material has a layer of non-stick aluminum coating. After nitriding treatment, the nozzle material is combined with the non-stick aluminum coating to form a composite structure material with a non-stick aluminum coating on the surface, and the non-stick aluminum coating is a silicon nitride boron nitride composite coating. The boron nitride coating improves the quality of castings, increases the service life of the nozzle material, and can be used repeatedly without damage, improves production efficiency and continuous operation time, and reduces costs.
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