Lowering the front box temperature and increasing the casting-rolling speed can not only improve production efficiency, but also improve melt fluidity and melt solidification conditions, and increase the internal density of the cast-rolled coil.
In production, ensuring the temperature of the smelting furnace, the standing furnace, and the caster tip and nozzle of the standing furnace and reducing the front box temperature are the key factors to ensure the high casting speed. After lowering the front box temperature, the coarse grain defects caused by the excessive temperature can be reduced, the oxidation slagging reaction of the melt at a high temperature can be reduced, and the quality of the cast-rolled plate can be guaranteed.
Due to the increase in casting speed, the size of the second phase in the high magnification structure of the cast-rolled coil is smaller, dispersed, and distributed more uniformly. The fine intermediate metal compound particles can improve the mechanical properties of the material, and it can make the material without reducing the plasticity. Under the circumstances, the strength is improved; due to the increase of the casting-rolling speed, the melt solidification conditions are improved, the internal structure density of the cast-rolled coil is increased, and the internal structure quality is significantly improved. However, the increase in casting-rolling speed is also limited to a certain range. As the vertical height of the alloy crystallization interval increases, the casting-rolling speed should be reduced accordingly. Therefore, the casting-rolling speed of pure aluminum is the fastest, and the casting-rolling speed of aluminum-magnesium alloy decreases with the increase of magnesium content.
AdTech offers front box and caster tip for aluminum strip casting. The automatic flow controller front box can reduce manual cost and improve molten aluminum flow stability. It uses high silicon melting materials. It has the features of nonstick molten aluminum and erosion resistance. Caster Tip is used for crystal forming and size control of aluminum sheet and foil blanks in the casting and rolling production line. It uses nano-scale fiber composite material vacuum suction filter molding, processed and manufactured by high-precision equipment.