1. Clean filter box.
2, gently put the filter plate into the filter box, and squeeze the gasket around the filter plate with hand, to prevent the aluminum liquid flow.
3. Preheat the filter box and the filter plate evenly to make it close to the aluminum liquid temperature. Preheat to remove moisture and facilitate initial transient filtration. Preheating can be carried out by electric or gas heating. Normally, it takes about 15--30 minutes.
4. To observe the change of hydraulic head 4, aluminum casting, normal initial pressure head is 100-150 mm. When the aluminum liquid to the head, will be reduced to 75--100 mm below, then head will slowly increase.
5, the normal filtration process, avoid knocking, vibration filter board. At the same time should be made full of water to avoid disturbance trough aluminum, aluminum water is too large.
6, after the end of the filter, remove the filter plate in time, clean the filter box.