Aluminium 7075 Ceramic Foam Filters For Casting

Aluminium 7075 Ceramic Foam Filters For Casting is basically divided into 6 pore sizes: 10PPI, 15PPI, 20PPI, 25PPI, 30PPI, and 40PPI. The larger the number, the smaller the aperture. But in actual practice, the four types of 10PPI 20PPI 30PP 40PPI can meet the needs of customers.

Aperture selection
1. The casting: 10～25ppi
2. Semi-continuous casting: 30～60ppi
3. High-quality aluminum or sheet: 50～60ppi
4. Continuous casting and rolling: 50～60p

Ceramic Foam Filters For Casting can not only effectively eliminate the larger oxidized inclusions in the molten aluminum, but also filter out the fine inclusions of a few microns that cannot be removed by the traditional process.
Because the hydrogen atoms, sodium, potassium and other harmful ions in the aluminum liquid are often adsorbed on the inclusions, the inclusions can become the core of the formation of bubbles, so while filtering the inclusions, these harmful elements in the aluminum liquid can also be reduced.
The ceramic foam filter plate filters out many small inclusions, thereby reducing the required effective crystal nucleus for the solidification of molten aluminum, thereby promoting the growth of molten aluminum nucleation under relatively large supercooling conditions, which can be refined and structured.

7075 aluminum alloy is a cold-treated forging alloy with high strength, far better than mild steel. 7075 is one of the most powerful alloys commercially available. The 7075 aluminum alloy has a compact structure and strong corrosion resistance, which is best for aviation and marine plates. General corrosion resistance, good mechanical properties and anode reaction. The finer grains make the deep drilling performance better, and the tool wear resistance is enhanced.

7075 aluminum alloy is a cold-treated forging alloy with high strength, far better than mild steel. 7075 is one of the most powerful alloys commercially available. General corrosion resistance, good mechanical properties and anode reaction. The finer grains make the deep drilling performance better, the tool wear resistance is enhanced, and the thread rolling is more distinctive. Zinc is the main alloying element in 7075. Adding magnesium to an alloy containing 3%-7.5% zinc can form MgZn2 with a significant strengthening effect, making the alloy’s heat treatment effect far better than aluminum-zinc binary alloys. Increasing the content of zinc and magnesium in the alloy will further improve the tensile strength, but its resistance to stress corrosion and spalling corrosion will decrease accordingly. After heat treatment, very high strength characteristics can be achieved.

Dimension of Aluminium 7075 Ceramic Foam Filters For Casting
660x660x50(26 inch)
584x584x50(23 inch)
508x508x50(20 inch)
432x432x50(17 inch)
381x381x50(15 inch)
305x305x50(12 inch)
228x228x50(9 inch)
178x178x50(7 inch)

Ceramic foam filter Pore Size (PPI): 10/20/30/40/50/60

30ppi 40ppi Foundry Filter 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.

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