Silicon Carbide Foam Filters Description

Silicon Carbide Foam Filters are advanced porous materials primarily used for filtering cast iron and non-ferrous alloys. Made from high-purity silicon carbide, these filters feature excellent resistance to molten metal attack and corrosion. They effectively:

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• Remove inclusions from molten metal.
• Reduce trapped gas to provide laminar flow.
• Improve the cleanliness of liquid metal, resulting in higher-quality castings and reduced scrap rates.

Silicon Carbide Foam Filters Specifications

Working Temperature '°C Porosity 80~90% Compression Strength '1.0Mpa (Room Temperature) Volume Density 0.3-0.5 g/cm3 Thermal Shock Resistance °C ' Room Temperature (3 cycles)

Chemical Composition

Al2O3

SiC

SiO2

Fe2O3

'28.00%

'62.00%

'10.00%

'0.50%

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Custom sizes, thicknesses, and configurations are available upon request.

Applications

Silicon Carbide Foam Filters are versatile and widely used across industries for:

1. Metal Casting

   • Filtering cast iron, ductile iron, copper, bronze, and brass.
   • Reducing inclusion defects and improving casting quality.

2. High-Temperature Gas Filtration

   • Filtering gases at elevated temperatures in industrial processes.

3. Chemical and Catalysis

   • Serving as a carrier for catalysts or chemical fillings in high-temperature environments.

4. Environmental and Energy Applications

   • Used in waste gas treatment and energy-saving processes.

Product Options

Size (mm) PPI (Pores Per Inch) Application 50 x 50 x 22 10'60 Small-scale casting filtration 100 x 100 x 22 10'60 General metal casting 300 x 300 x 22 10'60 Large-scale filtration Custom sizes Available Contact us for details

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Silicon Carbide Filters

Why Consider Porous Reaction Bonded Silicon Carbide (SiC) Filters?

• Stability in corrosive applications
• Outstanding thermal shock & creep resistance at over °C
• Higher temperature capability than porous metal & glass bonded ceramics

Choose Refractron for:

• Responsive customer service, simple quotes within 24 hours
• Free, personalized engineering assessments
• 35+ years of experience designing, engineering & manufacturing porous ceramics
• ISO: certified

Refractron is a leader in porous ceramics for separation, purification, and filtration. Our standard SiC formulations range from 6 microns to 42 but air flow and filtration can be tailored with or without a membrane. The formulations can be used to create a variety of shapes, but they are often used to make elements or hot gas candles to filter emissions. SiC plates are used as vacuum chucks. Standard hot gas candles are manufactured with 3.15' flanges, 2.38' outer diameter, 1.56' inner diameter at lengths up to 60' (mm) and plates are routinely manufactured up to 12' (305mm) in length and width. Additional sizes and shapes can be discussed during an initial engineering assessment.

Refractron has been a responsive and high quality vendor in our quest to solve challenging hot gas filtering applications in the nuclear waste processing arena.

When faced with a need for a failsafe ceramic-based fuse that would fit within our existing envelope, Refractron was willing to develop a customized solution for us. It is great to work with such a technically capable company.

Craig L. Porter, P.E,

How Can We Help You?

Contact Adam Osekoski, Vice President of Sales & Marketing at Refractron +1 315 573 , to learn if silicon carbide products from Refractron can help you improve the performance and reliability of your critical equipment, save you money and bolster your supply chain. Adam is a ceramic engineer with over 25 years experience designing, manufacturing and selling ceramics into critical applications like those drilling oil, drawing wire, metering chemicals and extending the life of high pressure valves.