Refractory Alumina Porous Ceramic Foam Filter Plate For Molten Aluminium

Instructions for use of ceramic foam filter plate:
Check and clean the debris on the surface of the filter box to keep the filter box clean and free of damage.

Gently put the filter plate into the filter box, and press the sealing gasket around the filter plate by hand to prevent the aluminum liquid from bypassing or floating.

Preheat the filter box and filter plate evenly to make them close to the temperature of molten aluminum, and the preheating temperature of the filter plate is not lower than 260℃. Preheating to remove adsorbed water helps to open the initial filter pore size in an instant, preventing partial pore blockage of the filter plate due to thermal expansion and contraction. Electric or gas heating can be used for preheating, and normal heating takes 15-30 minutes.

When casting, pay attention to the changes in the aluminum hydraulic head, and maintain the normal demand for the flow of aluminum liquid. The normal initial pressure head is 100-150mm. When the molten aluminum begins to pass, the pressure head will drop below 75-100mm, and then the pressure head will gradually increase.

During the normal filtration process, avoid knocking and vibrating the filter plate. At the same time, the launder should be filled with aluminum water to avoid too much disturbance of the aluminum liquid.
After filtration, take out the filter plate in time and clean the filter box.