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Alumina Ceramic Foam Filter Plate
Refactory Materials
Alumia ceramic foam filter plate 01.jpg
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Alumina Ceramic Foam Filter Plate

Alumina Ceramic Foam Filter Plate is a high-performance filtration medium used in the aluminum casting industry to remove impurities from molten aluminum. The filter plate is designed to ensure that only clean, high-quality molten metal is poured into molds, which helps to improve the overall quality of the final aluminum products and reduce defects during casting. This filtration technology is critical for achieving superior casting performance, enhanced mechanical properties, and improved surface finishes.

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    product details

    Product Features

    1. Increasing the uniformity of the internal structure of the metal

    2. Decontaminated the molten metal liquid

    3. Improvement of mechanical properties

    4. Elimination of metallurgical imperfections (gas sinks, porosity, leaks)

    5. Simplified gating system

    Technical Parameters

    Specification Length Thickness Angle  Bend Diagonal
    12"×12"×2"/305mm ±3mm 50mm±1mm 17.5°＋1° 4mm (max) Less than 1% of the side length
    15"×15"×2"/381mm ±3mm 50mm±1mm 17.5°＋1° 4mm (max) Less than 1% of the side length
    17"×17"×2"/432mm ±3mm 50mm±1mm 17.5°＋1° 4mm (max) Less than 1% of the side length
    20"×20"×2"/508mm ±4mm 50mm±1mm 17.5°＋1° 4mm (max) Less than 1% of the side length
    23"×23"×2"/584mm ±4mm 50mm±1mm 17.5°＋1° 4mm (max) Less than 1% of the side length
    26"×26"×2"/660mm ±4mm 50mm±1mm 17.5°＋1° 4mm (max) Less than 1% of the side length

    Note: No cracks or obvious defects on surface, no slag. All sides are tightly sealed with paper fiber with a thickness of 5mm.

    Physical Index

    Color White
    AL2O3 ≥83％
    Porosity ≥85％
    Volume Density 0.3g/cm³-0.45g/cm³
    Refractory Temperature ≤1100°C
    Flexural strength ＞0.5Mpa
    Thermal Shock Resistance 750℃/5 times
    Solubility At the molten temperature of aluminum or aluminum alloy, the filter does not produce chemically reaction nor dissolves.

    It is installed in the filter bowl for filtrating impurity in molten aluminum alloy,which helps to meet the requirement of production in high value-added, high-tech performance aluminum alloy precision casting.

    Sealing gasket for Ceramic Foam Filter

    Filter is surrounded by Sealing gasket, laying between filter and filter bowl, to prevent molten aluminum leaking through interface. Filter adopts sealing gasket in 3 different types, fiber paper material, fiber cotton material, expanding cotton material.

    11kbp

    Application

    Apply to improve quality of aluminium alloy casting and other non-ferrous alloy casting.

    Aluminum alloy bar choose: 10-30ppi

    Long-term casting choose: 30-50ppi

    High quality aluminum profile or plate choose :40 or 50ppi

    Double zero wave continuous casting and rolling choose: >50ppi

    Other specifications can be customized as your requirements

    Usage Method

    1. Clean the filter box.

    2. Put the filter plate into the filter box gently and press the sealing gasket around the filter plate by hand to prevent the liquid aluminium from flowing by. 

    3. Uniform preheating filter box and filter plate to make it close to the temperature of liquid aluminium casting.

    4. Pay attention to the change of aluminium hydraulic head during casting. The normal starting pressure head is 75-150. When the molten aluminium begins to pass, the indenter will drop below 25 inches, and then the indenter will increase slowly.

    5. After the filtration, remove the filter board and clean the filter box in time.

    22qs1

    Production work shop

    3era
    4md9
    5x58

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