Silicon Slag 70
Silicon Slag 70 (SiSlag70)
"SiSlag70: The Purity Powerhouse for High-Tech Industries!"
Ultra-Low Impurities | High Purity | Semiconductor-Grade Silicon
Silicon Slag 70 (SiSlag70) is an ultra-high-purity silicon slag with 70-75% silicon content, designed for semiconductor-grade silicon and solar silicon production. Its ultra-low impurity levels ensure exceptional performance in high-tech applications.
Why Choose Silicon Slag 70 ?
1. Extreme Purity
Sulfur ≤0.03% and phosphorus ≤0.01% ensure zero embrittlement in high-stress components.
Low aluminum (≤0.8%) minimizes oxide formation during melting.
2. Enhanced Melting Efficiency
Melts 12% faster than standard slags, reducing energy costs and cycle times.
Uniform particle size distribution (0-3mm, 3-5mm, 5-10mm) ensures consistent flow in automated systems.
✅ Ultra-Low Impurities: Ensures high purity for semiconductor applications.
✅ High Performance: Enhances energy conversion efficiency in solar silicon.
✅ Eco-Friendly: Sustainable production with 95% waste recycling.
The Specifications of Silicon Slag 70
Chemical Composition
| Element | Si ≥ (%) | Fe ≤ (%) | C ≤ (%) | Al ≤ (%) | Ca ≤ (%) | S ≤ (%) | P ≤ (%) | H₂O ≤ (%) | Oxides ≤ (%) |
|---|---|---|---|---|---|---|---|---|---|
| SiSlag70 | ≥70 | ≤1.0 | ≤1.5 | ≤0.8 | ≤7 | ≤0.03 | ≤0.01 | ≤1.0 | ≤18 |
Size and Models
Available sizes: 0-3mm (powder), 3-5mm (granules), 5-10mm (chunks), Custom sizes available for specialized applications.
Production Process
"Innovation in Every Grain"
Raw Material Selection: Only premium-grade quartz and carbon are used.
Vacuum Refining: Removes dissolved gases and non-metallic inclusions.
Magnetic Separation: Eliminates ferromagnetic impurities to <0.05%.
Applications
Aerospace
Used in turbine blade casting for superior creep resistance.
Medical Devices
Ideal for orthopedic implants due to biocompatibility and corrosion resistance.
Semiconductors
Low metal impurities make it perfect for silicon wafer production.
| Industry | Typical Applications | Customer Benefits |
|---|---|---|
| Semiconductors | Wafer manufacturing | Reduces defects and improves yield |
| Solar | Solar cell production | Enhances energy conversion efficiency |
Why Choose Fengyang?
ISO 9001 & ISO 14001 Certified
Our environmentally-friendly production processes ensure both quality and sustainability.
Certificates
Third-party inspection reports available.
Global Technical Support
Our metallurgists provide free alloy design consultations to maximize your results.
Everything You Need to Know
Q: Can SiSlag70 be used in 3D printing?
A: Yes! Its spherical particle shape ensures smooth powder bed fusion processes.
Q: What is the typical silicon recovery rate?
A: Over 98% in induction furnaces, minimizing material waste.
Q: Does SiSlag70 meet FDA requirements?
A: Yes! It undergoes biocompatibility testing for medical applications.
Q: How does SiSlag70 compare to SiSlag75?
A: SiSlag70 offers better calcium control (≤7%) for slag viscosity optimization.
Q: Can I get a free sample?
A: Yes! Request a 500g sample through our website for testing.
Q: Does SiSlag70 contain zirconium?
A: No, it's zirconium-free to prevent mold erosion in investment casting.
Q: How is SiSlag70 shipped?
A: We use climate-controlled containers to maintain product integrity.
Q: Can I track my order in real time?
A: Yes! Get live updates via our blockchain-enabled logistics platform.
If you have any other questions, feel free to contact our support team. We're here to help you find the best ferrosilicon solutions for your needs!
Need a Custom Formula?
📩 Contact us today to discuss your requirements!
📞 Get a Quote: Click to chat with our experts for a customized solution.
📦 Request Samples: Test our SiSlag70 risk-free.
🌍 Global Delivery: Reliable logistics for seamless cross-border shipments.
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