1. Correct selection of porous ceramic filter
The selection of the porous ceramic filter size and the number of holes must take into account factors such as the flow rate range of... more1. Correct selection of porous ceramic filter
The selection of the porous ceramic filter size and the number of holes must take into account factors such as the flow rate range of the specific casting type, the maximum metal level during filtration, the total filtration volume, and the cleanliness of the original aluminum liquid.
2. The pretreatment of the melt filtration can not be ignored
Such as normal slag removal and furnace cleaning of aluminum melting furnace and holding furnace; furnace refining, etc. In particular, the online degassing device is still necessary, because it can not only reduce the hydrogen content of the melt but also remove some non-metallic inclusions.
3. The porous ceramic filter must be adapted to the square refractory brick
The adaptation of the two facilitates sealing, which not only prevents metal from flowing into the casting box from the gap without being a porous ceramic filter but also prevents the foam filter plate from being too light and floating in aluminum water... less