30ppi 40ppi Aluminium Cff

17 11月 30ppi 40ppi Aluminium Cff

30ppi 40ppi Aluminium Cff has the characteristics of light weight, high strength, large specific surface area, high through-hole rate, corrosion resistance, and high temperature impact resistance.
It has an open mesh structure, which can collect slag and has a large total surface area, and can adsorb small inclusions to the inner surface of the filter to remove them, so that the molten metal can be formed smoothly.
Very sensitive to defects caused by impurities, foam ceramic filter can help improve the quality of castings and effectively reduce the rejection rate, and effectively remove quality problems such as aluminum alloy products, such as slag holes, blisters, and air holes.

The pore size of the ceramic foam filter should be selected according to the nature of the molten metal to be filtered.
For filtering viscous and thick, poor fluidity, and large impurity particles, a filter with a larger pore size should be selected for the molten metal, and a filter with a smaller pore size should be selected for filtering the fluid and dilute molten metal.
The pore size is too large to function as a filter.
If the pore size is too small, it may cause the filter to be clogged prematurely and cause the filter to stop halfway.

30ppi 40ppi Aluminium Cff is the most commonly used ceramic foam filter in the aluminum casting industry.
Ordinary aluminum casting usually uses 10-40ppi ceramic filter plates.
Aviation and high-quality aluminum materials usually use 30-60ppi ceramic filter plates.

Alumina ceramic foam filter is mainly used in the purification process of aluminum and aluminum alloy production. It can effectively remove various inclusions with a fineness of micrometers in the aluminum water, so that the aluminum water becomes a smooth laminar flow, which is conducive to punching; it has superior aluminum water erosion resistance, strictly controlled hole size and through-hole rate , A stable filtering effect can be obtained; thereby improving casting quality, reducing casting reject rate, extending service life, and reducing casting costs.

How to use ceramic filter plate
1. Clean the filter box
2. 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 flowing by.
3. Preheat the filter box and the filter plate uniformly to make them close to the casting aluminum liquid temperature.
4. Pay attention to the changes of the aluminum hydraulic head during casting. The normal initial pressure head is 75-150mm. When the molten aluminum starts to pass, the pressure head will drop below 25mm. Then the pressure head will slowly increase.
5. After filtering, take out the filter plate in time and clean the filter box.

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