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Alumina Foam Ceramic Filters: The Economical Choice for Molten Metal Filtration
Alumina foam ceramic filters offer an optimal balance of performance and cost-effectiveness for general-purpose metal filtration. With excellent chemical stability and adequate temperature resistance, they are widely used in aluminum, bronze, and lower-temperature iron applications.
Product Highlights
Key Advantages
Cost-Effective Performance: Optimal price-to-performance ratio
Chemical Stability: Excellent resistance to oxidation and basic slags
Thermal Consistency: Stable performance up to 1200°C
Rapid Filtration: High open porosity enables efficient flow rates
Easy Installation: Standard sizes fit most existing gating systems
Technical Specifications
Parameter
Specification
Note
Material Composition
≥85% Al₂O₃
High-purity alumina base
Color
White
Easy visual inspection
Operating Temperature
≤1200°C
Ideal for Al, Cu alloys
Porosity
80-90%
Ensures optimal metal flow
Density
0.35-0.55 g/cm³
Lightweight structure
Compressive Strength
≥0.8 MPa
Sufficient for most applications
Available PPI
10, 20, 30
Standard pore densities
Thermal Shock Resistance
Good
Suitable for most foundry conditions
Primary Applications
Recommended Industries
Aluminum Casting: Engine components, structural parts
Inclusion Removal: Effective for oxide films and small particles
Turbulence Reduction: Creates smoother metal flow
Improved Yield: Reduces scrap by 15-25%
Better Machinability: Cleaner metal extends tool life
Selection Guide
Choosing the Right PPI
10 PPI: For high flow rates, chunky inclusions
20 PPI: Balanced performance, most common choice
30 PPI: For maximum filtration of fine particles
Standard Sizes Available
Round: 40×13mm, 40×15mm, 50×20mm
Square: 40×40×13mm, 50×50×15mm
Large Formats: 7×7×2", 9×9×2", 12×12×2"
Custom Sizes: Available with MOQ
Frequently Asked Questions
Q: What metals are alumina filters best suited for?
A: Primarily aluminum alloys (up to 800°C), bronze, brass, and lower-temperature iron applications.
Q: How do I determine the correct PPI for my application?
A: Consider your metal type and inclusion size. Contact our technical team for personalized recommendations.
Q: Can alumina filters be used for steel casting?
A: Not recommended for most steel applications due to temperature limitations and potential chemical reactions.
Q: What's the typical service life?
A: Single-use for most applications, but some low-temperature processes may allow limited reuse.
Ready to improve your casting quality? Contact our filtration specialists for samples and technical consultation.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Trading Company
Year Established:
2017
Ecer Certification：
Verified Supplier
Manufacturer of Advanced Silicon Carbide, Ceramic Membranes & Industrial Ceramics
Shaanxi KeGu New Material Technology Co., Ltd. is a professional manufacturer and global supplier of advanced technical ceramics and ceramic membrane solutions.
We specialize in:
Silicon Carbide Ceramics –...
Manufacturer of Advanced Silicon Carbide, Ceramic Membranes & Industrial Ceramics
Shaanxi KeGu New Material Technology Co., Ltd. is a professional manufacturer and global supplier of advanced technical ceramics and ceramic membrane solutions.
We specialize in:
Silicon Carbide Ceramics –...
