1. Ultra-Low Thermal Conductivity
With a nano-porous structure (porosity 90–98%, average pore size ~15 nm), the powder effectively blocks heat transfer. Thermal conductivity is ≤0.018 W/(m·K) at 25℃ and 0.040–0.048 W/(m·K) at 600–800℃, providing 4–6 times better insulation than rock wool or glass wool. It reduces furnace heat loss and lowers fuel and electricity costs.
2. High-Temperature Stability
After high-temperature modification, the powder operates reliably from -200℃ to 1000℃. Even under long-term 600–800℃ furnace operation, it maintains structure and performance. Calcium-doped variants offer enhanced infrared shielding and prevent pore collapse at extreme temperatures.
3. Lightweight and Strong
Bulk density is only 60–110 kg/m³, 1/5–1/10 of traditional insulation. This reduces furnace load, prevents structural deformation, and extends furnace lifespan. It can also be mixed with refractory materials for composite insulation.
4. Excellent Chemical Stability
Made from high-purity silica, it is inert with aluminum liquid, non-toxic, non-corrosive, and hydrophobic (water contact angle ≥145°). It prevents moisture absorption and contamination of aluminum, ensuring product quality and operator safety.
5. Easy Construction and Versatile Application
The powder can be mixed with mortar, castables, or coatings, or applied by spraying, brushing, or filling gaps. Suitable for furnace lining, doors, covers, flues, and heat preservation layers. Custom sizes and shapes can meet specific furnace requirements.
6. Long Service Life and Cost-Effective
Service life exceeds 10 years-3–5 times that of rock wool or glass wool. Though initial cost is higher, energy savings and reduced maintenance make it highly cost-effective over time.
Feature
● Ultra-low thermal conductivity: 0.017~0.023W/(m·K)
● Ultra-lightweight: ≤0.1g/cm³
● Easy to compound with other materials
● Excellent elasticity
● Complies with RoHS standards
Application Advantages of Silica Aerogel Powder in Aluminum Melting Furnaces
1. Reduce Energy Consumption and Operating Costs
Ultra-low thermal conductivity reduces furnace heat loss by over 50%, cutting fuel or electricity use by 15–25%. Large-scale smelters can save millions annually, achieving significant economic benefits.
2. Improve Furnace Temperature Stability and Product Quality
Maintains uniform furnace temperature, preventing local overheating or insufficient melting. Reduces impurities and oxides in aluminum, improves purity, and avoids defects like cracks or uneven texture, raising product qualification rates.
3. Extend Furnace Service Life and Reduce Maintenance
Lightweight, high-temperature stable, and corrosion-resistant. Forms dense insulation layers that protect the furnace body from thermal shock, high-temperature erosion, and flue gas, extending furnace life by 30–50% and lowering maintenance costs.
4. Support Energy Conservation and Green Production
Reduces energy consumption and carbon emissions, helping enterprises meet energy-saving and carbon-reduction standards. Non-toxic and environmentally friendly, supporting sustainable and low-carbon manufacturing.
5. Simplify Construction and Improve Efficiency
Good fluidity and dispersibility allow easy mixing with refractory materials. Suitable for narrow or irregular furnace spaces, reducing construction difficulty and shortening installation time by 20–30%, lowering labor and construction costs.
| Product Parameter | R-05 | R-20 | R-50 |
|---|---|---|---|
| Particle Size D50 (μm) | ~5 | ~20 | ~50 |
| Appearance | White lightweight powder | White lightweight powder | White lightweight powder |
| Thermal Conductivity (W/m·K) | 0.017–0.023 | 0.017–0.023 | 0.017–0.023 |
| Application Temperature (°C) | −200 to 800 | −200 to 800 | −200 to 800 |
| Specific Surface Area (m²/g) | 400–700 | 400–700 | 400–700 |
| Pore Size (nm) | ~15 | ~15 | ~15 |
| Bulk Density (g/cm³) | 0.06–0.12 | 0.06–0.12 | 0.06–0.12 |
| Porosity (%) | >90% | >90% | >90% |
| Hydrophobicity (°) | >145° | >145° | >145° |
customized Aerogel Powder factory
Professional Team Support, Comprehensive Technical Service
Dedicated engineer and sales teams offer one-on-one technical support, with supporting services including test videos and sample provision.
Precise Cost Control, Competitive Pricing
Professional procurement and cost accounting teams optimize the supply chain, transfer profit to customers, and provide cost-effective products.
One-Stop Service, Customized Solutions
One-on-one exclusive service with tailored product recommendations and customized application solutions for aerogel powder across different industries.
Rich Practical Cases, Full-Range Product Matching
Boasting global project cases and a complete range of aerogel products, we provide integrated supporting solutions for customers' one-stop procurement.
FAQ
How does silica aerogel powder affect aluminum quality?
It is chemically inert and does not react with aluminum liquid or aluminum oxide, preventing contamination. Its thermal stability ensures uniform furnace temperature, reducing impurities, oxides, and defects in cast aluminum products.
Is it easy to install silica aerogel powder in furnaces?
Yes. Its lightweight, fluid powder form allows mixing with refractory mortar, castables, or coatings. It can be sprayed, brushed, or filled into gaps, even in narrow or irregular furnace parts, simplifying construction and shortening installation time.
How long does silica aerogel powder last?
The product has strong aging and corrosion resistance, with a service life exceeding 10 years under normal conditions, 3–5 times longer than traditional insulation materials such as rock wool or glass wool.
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