Lightweight Insulating Castable
Category:
Description:
Lightweight Insulating Castable
I. Core Product Types
- Perlite Quality Series ( ZL-800)
- Dry density: 600–800 kg/m³
- Aggregate Mix: Expanded Perlite 60%+ expanded clay 20%
- Operating temperature: ≤900℃
- Mullite Quality Series ( ZL-1200)
- Lightweight mullite aggregate (porosity ≥ 55%)
- Bulk density: 0.8–1.2 g/cm³
- Maximum temperature resistance: 1200℃
- Alumina hollow sphere type ( ZL-1600)
- Al₂O₃ ≥ 90%, hollow sphere diameter 0.2–5 mm
- Thermal conductivity: 0.15 W/(m·K) at 800℃
- Continuous operating temperature: 1600℃
2. Production Process
- Intelligent Ingredient Mixing System
- Aggregates AI pre-mixing (grading accuracy ±1%)
- Composite Binder (Aluminate Cement) +Silica fume)
- Energy‑saving drying process
- Microwave - Combined hot-air drying (energy consumption reduced by 40%)
- Moisture content control: ≤5% (110°C × 8 hours)
- Green additives
- Organic fiber (shatter‑proof)
- Nanogel aerogel (thermal conductivity reduced 30%)
III. Applications
Application Fields
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Use Cases
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Energy-saving effect
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Petrochemical Industry
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Cracking Furnace Insulation Lining
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Heat loss reduced by 35%
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New energy batteries
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Insulation Layer of Lithium-Ion Sintering Kiln
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Energy consumption reduced by 18%
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Building Energy Efficiency
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Ultra-low energy consumption building exterior wall insulation
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Thermal conductivity ≤ 0.08
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Aerospace
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Rocket Engine Heat Shield
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Temperature resistance: 2000℃
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IV. Performance Advantage Comparison
- Compared with traditional materials
- Weight: Only that of firebricks. 1/4
- Construction efficiency: Fast 5–8 times (can be cast on-site)
- Heat loss: Reduce 40–60%
- Economic Analysis
- Overall cost: Lower than ceramic fiber modules. 30%
- Maintenance cycle: Extended to 5–8 years
V. Physicochemical Indicators ( GB/T 2026-QZ)
1. Basic Performance ( ZL-1200 Type):
- Compressive strength: ≥3.5 MPa ( 110℃ After drying)
- Post-burn wire deformation: ±0.5% ( 1200℃ × 3 hours )
- Thermal Properties:
- Thermal conductivity:
- 400℃: 0.12 W/(m·K)
- 800℃: 0.18 W/(m·K)
- Heat capacity: 1.1 kJ/(kg·K) at 800℃
- Durability indicator:
- Freeze resistance: 50 Strength loss in the next cycle ≤10%
- Alkali resistance: K₂O Erosion depth ≤2mm/100h
Keywords:
Lightweight Insulating Castable
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Phone:+86-15936268068
Email:zzjsrefractory@gmail.com
Address: Chengguan Industrial Zone, Xinmi City, Henan Province
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