Products
Refractory Ramming Materials
I. Main Product Types
Silicon Carbide Ramming Material
Composition: 45–65% SiC, 15–25% Electrolytically Calcined Anthracite Coal
Characteristics: Excellent resistance to aluminum melt erosion; thermal conductivity of 15–20 W/(m·K)
Application: Linings for Aluminum Electrolysis Cells
Magnesia-Alumina-Chrome Ramming Material
Formulation: 60–70% MgO, 10–15% Al₂O₃, 5–8% Cr₂O₃
Advantages: Outstanding slag resistance; softening temperature ≥1700°C
Application: Repair of RH Furnace Immersion Tubes
Zirconia Ramming Material
配方: ≥60% ZrSiO₄, 20–30% α-Al₂O₃ Fine Powder
Features: Resistant to glass corrosion; linear change ≤0.5% (at 1600°C)
II. Production Processes
Dry Mixing Process (New Technology in 2025)
Utilizes a 3D Motion Mixer with CV ≤ 3%
Automated Atomization System for Composite Binders (Resin + Phosphate)
On-Site Construction Techniques
Robot-Assisted Ramming (Pressure: 0.6–1.2 MPa)
Infrared Online Density Monitoring (Accuracy: ±2%)
Baking and Curing
Microwave-Assisted Curing (Reduces curing time by 70%)
Temperature Gradient Control (Heating Rate: 5°C/min)
III. Application Scenarios
Industry
典型 Applications
效益提升
Nonferrous Metallurgy
Bottom of Copper Flash Smelting Furnaces
Service Life Extended to 18 Months
Waste Incineration
Hot-Repairs in the Melting Zone
Maintenance Costs Reduced by 60%
Photovoltaics
Polycrystalline Silicon Ingot Casting Furnaces
Energy Consumption Reduced by 15%
Aerospace
Rocket Engine Test Stands
Temperature Resistance Up to 2200°C
IV. Performance Breakthroughs
Comparison with Traditional Castable Materials
Permeability Resistance: Increased by 3–5 times (Aluminum melt penetration depth ≤10 mm)
Construction Efficiency: Improved by 80% (no formwork or curing required)
Economic Indicators
Material Utilization Rate: ≥95% (compared to only 85% for castables)
Total Cost: Reduced by 30–40%
V. Physicochemical Specifications
1. Physical Properties:
- Bulk Density: 2.4–3.2 g/cm³ (depending on material composition)
- Compressive Strength: ≥40 MPa (after drying at 110°C)
High-Temperature Characteristics:
- Flexural Strength (at 1400°C): ≥8 MPa
- Thermal Shock Stability (water quenching at 1100°C): ≥15 cycles
Construction Parameters:
- Workable Time: 4–6 hours (at 25°C ambient temperature)
- Initial Setting Time: 2–3 hours (for resin-bonded formulations)
Refractory Ramming Materials
I. Main Product Types
Silicon Carbide Ramming Material
Composition: 45–65% SiC, 15–25% Electrolytically Calcined Anthracite Coal
Characteristics: Excellent resistance to aluminum melt erosion; thermal conductivity of 15–20 W/(m·K)
Application: Linings for Aluminum Electrolysis Cells
Magnesia-Alumina-Chrome Ramming Material
Formulation: 60–70% MgO, 10–15% Al₂O₃, 5–8% Cr₂O₃
Advantages: Superior slag resistance; softening temperature ≥1700°C
Application: Repair of RH Furnace Immersion Tubes
Zirconia Ramming Material
配方: ≥60% ZrSiO₄, 20–30% α-Al₂O₃ Fine Powder
Features: Excellent resistance to glass corrosion; linear change ≤0.5% at 1600°C
II. Production Processes
Dry Mixing Process (2025 New Technology)
Utilizes a 3D Motion Mixer with CV ≤ 3%
Automated Atomization System for Composite Binders (Resin + Phosphate)
On-Site Construction Techniques
Robot-Assisted Ramming (Pressure: 0.6–1.2 MPa)
Infrared Online Density Monitoring (Accuracy: ±2%)
Baking and Curing
Microwave-Assisted Curing (Reduces curing time by 70%)
Temperature Gradient Control (Heating Rate: 5°C/min)
III. Application Scenarios
Industry
典型 Applications
效益提升
Nonferrous Metallurgy
Bottom Liner of Copper Flash Smelting Furnaces
Service Life Extended to 18 Months
Waste Incineration
Hot-Repairs in the Melting Zone
Maintenance Costs Reduced by 60%
Photovoltaics
Polycrystalline Silicon Ingot Casting Furnaces
Energy Consumption Reduced by 15%
Aerospace
Rocket Engine Test Stands
Temperature Resistance Up to 2200°C
IV. Performance Breakthroughs
Comparison with Traditional Castable Materials
Permeability Resistance: Improved by 3–5 times (Aluminum melt penetration depth ≤10 mm)
Construction Efficiency: Increased by 80% (No need for formwork or curing)
Economic Indicators
Material Utilization Rate: ≥95% (compared to only 85% for castables)
Total Cost: 30–40% Lower
V. Physicochemical Specifications
1. Physical Properties:
- Bulk Density: 2.4–3.2 g/cm³ (depending on material composition)
- Compressive Strength: ≥40 MPa (after drying at 110°C)
High-Temperature Characteristics:
- Flexural Strength (at 1400°C): ≥8 MPa
- Thermal Shock Stability (water quenching at 1100°C): ≥15 cycles
Construction Parameters:
- Workable Time: 4–6 hours (at 25°C ambient temperature)
- Initial Setting Time: 2–3 hours (for resin-bonded formulations)
Refractory Ramming Materials
I. Major Product Types
Silicon Carbide Ramming Material
Composition: 45–65% SiC, 15–25% Electrolytically Calcined Anthracite Coal
Characteristics: Excellent resistance to aluminum melt erosion; thermal conductivity of 15–20 W/(m·K)
Application: Lining for aluminum electrolytic cells
Magnesia-Alumina-Chrome Ramming Material
Proportion: 60–70% MgO, 10–15% Al₂O₃, 5–8% Cr₂O₃
Advantages: Superior slag resistance; softening temperature ≥1700°C
Application: Repair of RH furnace immersion tubes
Zirconia Ramming Material
配方: ≥60% ZrSiO₄, 20–30% α-Al₂O₃ fine powder
Features: Resistant to glass erosion; linear change ≤0.5% at 1600°C
II. Production Processes
Dry Mixing Process (New Technology in 2025)
Utilizes a three-dimensional motion mixer with CV ≤ 3%
Automated atomization system employing composite binders (resin + phosphates)
On-Site Construction Techniques
Robot-assisted ramming (pressure: 0.6–1.2 MPa)
Infrared online density monitoring with accuracy ±2%
Baking and Curing
Microwave-assisted curing (reducing curing time by 70%)
Temperature gradient control: heating rate of 5°C/min
III. Application Scenarios
Industry
典型 Applications
效益提升
Nonferrous Metallurgy
Bottom lining of copper flash smelting furnaces
Service life extended to 18 months
Waste Incineration
Hot repair of the melting zone
Maintenance costs reduced by 60%
Photovoltaics
Polycrystalline silicon ingot casting furnaces
Energy consumption reduced by 15%
Aerospace
Rocket engine test stands
Temperature resistance up to 2200°C
IV. Performance Breakthroughs
Comparison with Traditional Castable Materials
Permeability Resistance: Improved by 3–5 times (aluminum melt penetration depth ≤ 10 mm)
Construction Efficiency: Increased by 80% (no formwork or curing required)
Economic Indicators
Material Utilization Rate: ≥95% (compared to only 85% for castables)
Total Cost: Reduced by 30–40%
V. Physicochemical Specifications
1. Physical Properties:
- Bulk Density: 2.4–3.2 g/cm³ (depending on material composition)
- Compressive Strength: ≥40 MPa (after drying at 110°C)
High-Temperature Characteristics:
- Flexural Strength (at 1400°C): ≥8 MPa
- Thermal Shock Stability (water quenching at 1100°C): ≥15 cycles
Construction Parameters:
- Workable Time: 4–6 hours (at 25°C ambient temperature)
- Initial Setting Time: 2–3 hours (for resin-bonded formulations)
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Contact Us
whatsapp:+8615936268068
Phone:+86-15936268068
Email:zzjsrefractory@gmail.com
Address: Chengguan Industrial Zone, Xinmi City, Henan Province
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