Magnesia Ramming Mass is a high-performance refractory material designed for use in high-temperature environments, especially in the metallurgical, cement, and chemical industries. Known for its exceptional resistance to high temperatures and corrosion, this ramming mass is commonly used in blast furnaces, electric arc furnaces, and other high-heat industrial processes.
Formulated using high-quality magnesite and other specially selected raw materials, Magnesia Ramming Mass is engineered to withstand severe operating conditions, offering long-lasting protection for furnace linings and other high-temperature equipment.
Composition
Magnesia Ramming Mass is primarily composed of high-purity magnesite, magnesia-calcium sand, and carefully chosen additives. These materials are processed through a specialized manufacturing technique to enhance their thermal stability and corrosion resistance. The key components include:
- Refractory aggregates
- Fine powders
- Binding agents
- Additives to improve performance
This mixture from Xintai Refractory, provides a durable and reliable solution for industrial applications requiring superior resistance to thermal shock and slag erosion.
Technical Specifications
| Item | Unit | Magnesia Ramming Mass |
|---|---|---|
| MgO Content | % | ≥ 97% |
| SiO₂ Content | % | ≤ 1.5% |
| Fe₂O₃ Content | % | Trace |
| Al₂O₃ Content | % | ≤ 1.0% |
| CaO Content | % | ≤ 2.0% |
| Bulk Density | g/cm³ | 2.4 – 2.5 |
| Compressive Strength (110°C × 3h) | MPa | ≥ 70 |
| Compressive Strength (1500°C × 3h) | MPa | ≥ 120 |
| Flexural Strength (110°C × 3h) | MPa | ≥ 12 |
| Flexural Strength (1500°C × 3h) | MPa | ≥ 15 |
| Shrinkage | % | 0.06% |
| Permanent Linear Change (1500°C × 3h) | % | ±0.6% |
| Maximum Service Temperature | °C | 1800 |
Key Features
- High Magnesia Content (~97% MgO): Provides exceptional resistance to high-temperature environments and acidic slags, ensuring long-lasting protection for furnace linings.
- Thermal Shock Resistance: Superior to many other ramming masses, ideal for applications exposed to rapid temperature changes.
- Excellent Mechanical Strength: Both compressive and flexural strengths are high, ensuring structural integrity under extreme operational loads.
- Low Shrinkage and Stable Dimensions: Exhibits minimal shrinkage during high-temperature exposure, maintaining volume stability over time.
- Enhanced Wear Resistance: High density and low porosity ensure the material withstands wear and erosion, leading to prolonged operational life.
- Ease of Installation: Can be easily applied using vibration casting, ensuring a reliable and uniform furnace lining.
- High Temperature Resistance: Capable of withstanding service temperatures up to 1800°C, making it suitable for demanding applications like electric arc furnaces and refining processes.
Typical Applications
Magnesia Ramming Mass is used in a variety of high-temperature industrial applications, including:
- Metallurgical Industry:
- Furnace linings for steel, iron, and non-ferrous metal smelting.
- Electric arc furnaces, blast furnaces, and induction furnaces.
- Cement Industry:
- Lining for kilns and other high-temperature equipment in cement production.
- Glass Industry:
- Furnace linings for glass melting furnaces.
- Chemical Industry:
- High-temperature reaction vessels and other equipment exposed to harsh conditions.
- Non-ferrous Metallurgy:
- Crucibles and furnaces used for the melting of non-ferrous metals such as copper, aluminum, and zinc.
Production Details
- Raw Materials: High-purity magnesite, magnesia-calcium sand, and selected additives.
- Manufacturing Process: The production process includes precise material batching, blending, and high-temperature performance testing to ensure that the final product meets the rigorous standards required for industrial use.
- Quality Control: Continuous monitoring of chemical composition, physical properties, and thermal stability ensures the ramming mass delivers consistent and high-quality performance.
- Curing & Drying: The ramming mass undergoes a controlled curing process to optimize its strength and performance characteristics before being used in furnace linings.
Packing and Shipping Details
- Standard Packing: 25 kg paper bags with moisture-proof inner lining to protect against moisture absorption.
- Bulk Packing: Jumbo bags available upon request for large-scale orders.
- Palletizing: Wooden pallets with shrink-wrapped packaging to ensure protection during transit.
- Shipping Methods: Available by sea, truck, or rail, depending on customer preferences and order volume.
- Delivery Form: Supplied as a dry powder, ready for on-site mixing.
All products are packed securely to prevent damage during transportation, ensuring optimal performance upon delivery.
Frequently Asked Questions (FAQ)
Q1: What is the magnesia content of the ramming mass?
The magnesia content of Magnesia Ramming Mass is approximately 97%, providing excellent resistance to high-temperature environments and slag erosion.
Q2: What is the maximum service temperature of Magnesia Ramming Mass?
The material can withstand temperatures up to 1800°C, making it ideal for extreme heat conditions in metallurgical and other high-temperature applications.
Q3. How much water is needed for mixing?
The amount of water required depends on the specific application and mixing method. Typically, around 5-8% water is recommended for proper consistency.
Q4: Can Magnesia Ramming Mass resist slag erosion?
Yes, it offers excellent resistance to slag erosion, making it ideal for use in environments exposed to molten metal and slag.
Q5: What curing and drying procedures are needed?
The material should be cured according to standard procedures, including controlled drying to ensure optimal strength and durability before installation in high-temperature applications.
