Wear‑resistant castable
Category:
Description:
Wear‑resistant castable
I. Main Product Types
- Standard type ( GJ-18 Series)
- Ingredients: Electrofused corundum aggregate ( Al₂O₃ ≥ 90%)
- Combined system: pure calcium aluminate cement +α-Al₂O₃ fine powder
- Bulk density: 3.2 ± 0.1 g/cm³
- Applicable temperature: ≤1800℃
- Composite reinforced ( GJ-18F)
- Add 5–8% fine silicon carbide powder
- Improved wear resistance 50% (ASTM C704 test)
- Thermal shock resistance: ≥15 cycles (water quenching at 1100℃)
- Nano‑modified type ( 2025 New Technologies)
- Incorporate 2–3% nano-ZrO₂
- Increased high-temperature flexural strength 80% (≥12 MPa at 1600℃)
- Construction Performance Optimization (Flowability ≥ 280 mm)
2. Modern Production Processes
- Intelligent Ingredient Mixing System
- Aggregate Gradation AI Optimization (3–1 mm: 1–0.1 mm: <0.1 mm = 4:3:3)
- Moisture control accuracy: ±0.3%
- Active Powder Processing
- The specific surface area of the ultrafine powder is ≥6000 cm²/g (BET method).
- Nano-additive Pre-dispersion Technology
- Quality Control System
- Online Particle Size Analysis (Laser Diffraction Method)
- Automatic moisture content monitoring for packaging (≤0.5%)
III. Applications
Application Fields
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Site of Use
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Technical Benefits
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New Energy
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Lithium battery material sintering kiln
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Lifespan extended to 5 years.
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Environmental protection
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Cyclone Separator for Hazardous Waste Incinerator
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Wear resistance increased by 3 times.
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Building materials
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Cement kiln tertiary air duct
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Maintenance cycle extended by 60%
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Metallurgy
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Blast furnace iron tapping channel
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Total iron ore shipments exceeded 200,000 tons.
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IV. Performance Advantage Comparison
- Compared with traditional materials
- Wear resistance: 0.5 cm³ (ASTM C704) vs 3.2 cm³ (high-alumina castable)
- Thermal Shock Stability: 25 times vs. 8 times (water-cooled at 1100℃)
- Erosion resistance: K₂O penetration depth ≤ 1 mm/100 h
- Economic Analysis
- Construction efficiency: Can be quickly baked ( 50℃/h)
- Overall cost: Lower than prefabricated components. 40–50%
V. Physicochemical Indicators ( GB/T 2026-GJ)
1. Physical Properties:
- Bulk density: 3.15–3.25 g/cm³ ( 110℃ × 24 h )
- Withstand Voltage Strength: ≥80MPa ( 1100℃ × 3 hours )
- High-Temperature Performance:
- Flexural strength ( 1600℃ ): ≥8 MPa
- Rate of change of the line: ±0.3% ( 1600℃ × 3 hours )
- Special Indicators:
- Wear amount ( ASTM C704 ): ≤0.8 cm³
- Thermal conductivity ( 1000℃ ): 2.8 W/(m·K)
Keywords:
Wear‑resistant castable
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Phone:+86-15936268068
Email:zzjsrefractory@gmail.com
Address: Chengguan Industrial Zone, Xinmi City, Henan Province
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