Aluminum silicate hard nozzle tip  are the key parts of the continuous aluminum trip casting machine which directly effect the quality of aluminum sheets. The hard nozzle tip can be divided into many types according to different casting machines. Aluminum silicate hard nozzle tip produced by our plant is compounded by ceramic fiber and some other refractory materials. The opening surface and the coating of the working surface are smooth and it can resistant to the corrosion of the liquid aluminum , guarantee the purity of the aluminum sheet .