Carbon-based Foam Ceramic Filter
Ⅰ. Carbon ceramic foam filter has low heat storage coefficient with minimal aluminum liquid temperature loss, effectively lowering cold shut risk for thin-walled & complex aluminum castings.
Ⅱ. Carbon ceramic foam filter features low density, its residues float on molten aluminum during remelting for easy separation without polluting subsequent melts.
Ⅲ. Carbon ceramic foam filter ensures smooth aluminum flow, stable molten metal quality and clean melting furnaces for continuous aluminum casting production.
Pore Density: 10-15ppi
Operating temperature: ≤1000℃
Application Scope: cast aluminum
Customized service provided: covered-edge, multiple shapes
- Information
Carbon-based Foam Ceramic Filter
Core structure: three-dimensionally interlaced and through-going pores. It removes oxide slag, sand grains and silicate inclusions from molten metal via four purification mechanisms: mechanical screening, surface adsorption, flow rectification & stabilization, and filter cake interception.
Typical Application: Gravity Die Casting Aluminum Alloy Parts
It is widely applied to automotive aluminum alloy components, wheel hubs, brackets, housings and other workpieces. It delivers optimal performance for thin-walled, complex-structured castings that are highly susceptible to cold shuts.
Practical Customer Case
An aluminum foundry manufactures automotive engine brackets with uneven wall thickness, where the thinnest section is merely 3mm.
When using traditional alumina filters, the rejection rate caused by cold shuts fluctuated between 5% and 8%.
After switching to carbon ceramic foam filters with unchanged process parameters, the cold shut rejection rate dropped below 2%.
Workshop feedback:"The molten aluminum flows much more smoothly, bringing stable and reliable casting quality."
Additional Production Benefit: Easier Recycling of Returns
The treatment of recycled runner scrap is far more convenient. Previously, furnace shutdown was required every week to clean filter residues sunk at the furnace bottom. Now dedicated cleaning is rarely needed, as floating filter fragments can be skimmed off together with surface dross, lifting melting efficiency by over 10%.
Parameters
| Compression strength (MPa) | Porosity (%) | Bulk density (g/cm³) | Operating temperature (≤℃) |
| ≥ 0.80 | 80~90 | 0.25~0.35 | 1000 |
Why are our Prices more Competitive?
Direct from the factory – Thanks to our factory’s strong production capabilities, Xinda is able to eliminate middlemen and avoid unnecessary markups. This allows us to maintain steady purchasing volumes, secure better pricing, and ensure a stable, reliable supply. Long-term partnership focus – We prioritize building long-term relationships with our customers. That’s why we’re willing to operate on lower profit margins while maintaining high product quality, passing more value on to our clients.
Can we Place Customized Order?
Yes, we already own thousands of customized filters models in multiple sizes and shapes. And we are capable of new type customized production.
How Can We Handle it if there’s Quality Problem aAter Payment?
We are willing to provide technical support with professional team during and after delivery.
How Can We Make Sure About the Quality After We Put the Order?
We will implement raw material tests before production and the product quality inspection reports by high precision instruments will be sent to you before deliver.
How Long is your Delivery Time?
Our production cycle is 7-10 days in general, 5-7 days in emergency. There are also available urgent transportation method for your choice.