QINGDAO LAURENT NEW MATERIALS CO.,LTD |
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User manual for foam ceramic filter
Alumina Ceramic Foam Filter casting filtration
Alumina Ceramic Foam Filter for aluminium casting filtration
1. Alumina Ceramic foam Filter is developed as a new type molten
metal filters to decrease casting flaw in recent years. Foamed
ceramics have the characters of light weight, high mechanical
strength, large specific surface areas, high porosity, excellent
thermal shock resistance, chemical corrosion resistance and high
temperature stability in molten metal. With the distributing pores
net structure, they are able to increase the surface areas, and
absorb the sinter, the liquid metal becomes more pure, waster
quality problems such as sand pore and air pore are much less and
the cast quality becomes much better.
2. Function
ceramic foam filter provide the ultimate quality in molten metal
filtration.They are constructed of impregnated foam in a controlled
open-pore structure to provide a superior filtration effect.
NINGXIN® filters provide an efficient solution for the removal of
oxides and non-metallic particles from a broad range of non-ferrous
metals.
3. Advantages
*Increased Fluidity
Removal of inclusions makes the metal more fluid, resulting in
easier mold fill, better cast structure, and better thin section
castability.
*Reduced Mold and Die Wear
Removal of inclusions and other nonmetallic debris from the melt
reduces die soldering and mold-metal interaction, which degrades
the mold surface and service life.
*Longer Tool Life
Oxide as well as intermetallic inclusions create “hard spots” that
damage tools in machining and finishing operations. Filtration
reduces tool wear and increases productivity.
*Fewer Rejects
Inclusions nucleate porosity, create hot tears during
solidification,cause surface defects that mar appearance, and often
reduce mechanical properties. In many cases, filtration cuts
rejects from such causes to virtually zero. Improvements in yield
to near 100% and reduced reject rates to at or near 0% are common.
4. Advantages
• Easily installed |
• Resistant to molten aluminium |
• Non-wetting |
• Excellent hot strength |
• Dimensionally stable |
• Suitable for both horizontal and vertical placement |
5. Applications
• Sand casting |
• Investment casting |
• Shell casting |
• Low-pressure die casting |
• Permanent mould casting |
• Holding and transfer systems |
6. Data Sheet
Material | AL2O3 |
Operation Temperature | 1200°C |
Color | White |
Pore Size (ppi) | 10~50 |
Porosity(%) | 70~95 |
Density(g/cm3) | 0.35~0.5 |
Compressive Strength(MPa) | ≥1.0 |
Thermal Stability1100°C~room temperature | good |
Application | molten aluminium casting filtration |