Silica Ramming Mass, also known as Acidic Ramming Mass, is a high-performance refractory material primarily used for the lining of coreless induction furnaces. It is specially formulated to resist the erosive effects of acidic slags and provide excellent thermal shock resistance in high-temperature environments. With its high silica content, it offers superior resistance to thermal shock, slag corrosion, and thermal expansion, making it a top choice for induction melting applications.

Silica Ramming Mass is designed to perform in environments with extreme temperatures, up to 1700°C, while minimizing expansion and offering long-lasting performance. This ramming mass is ideal for industries such as steel, non-ferrous metallurgy, and foundries, where furnace linings need to withstand harsh conditions while maintaining excellent workability during installation.

Technical Specifications

Item	Unit	Silica Ramming Mass
SiO₂ Content	%	≥ 99.71%
Fe₂O₃ Content	%	Trace
Al₂O₃ Content	%	≤ 0.09%
TiO₂ Content	%	Trace
CaO Content	%	≤ 0.04%
MgO Content	%	≤ 0.02%
K₂O Content	%	≤ 0.06%
Na₂O Content	%	≤ 0.04%
Bulk Density	g/cm³	2.3 – 2.4
Compressive Strength (110°C × 3h)	MPa	≥ 60
Compressive Strength (1500°C × 3h)	MPa	≥ 100
Flexural Strength (110°C × 3h)	MPa	≥ 8
Flexural Strength (1500°C × 3h)	MPa	≥ 10
Shrinkage	%	0.08%
Permanent Linear Change (1500°C × 3h)	%	±0.5%
Maximum Service Temperature	°C	1700

Key Features

High Silica Content (~99.7% SiO₂): Provides superior resistance to acidic slags and ensures exceptional protection for furnace linings.
Thermal Shock Resistance: Ideal for high-temperature induction melting, offering superior thermal shock resistance.
Compressive & Flexural Strength: Ensures long-lasting structural support for furnace linings under heavy loads.
Low Shrinkage & Minimal Permanent Linear Change: Guarantees high volume stability during operation.
Low Porosity & High Density: Ensures durability, wear resistance, and consistent performance in demanding environments.
Easy Workability & Vibration Casting: Ensures smooth installation and consistent casting performance.
Temperature Resistance: Suitable for service temperatures up to 1700°C, ideal for induction furnaces and other high-temperature applications.

Typical Applications

Silica Ramming Mass is ideal for various high-temperature industrial applications, including:

Coreless Induction Furnaces: Primarily used for scrap metal melting in steel, iron, and non-ferrous industries.
Foundry Applications: Provides durable linings in furnaces used for metal casting.
Steel Industry: Effective for furnace linings exposed to acidic slags.
Non-Ferrous Metallurgy: Suitable for holding and melting furnaces.
Casting and Heat Treatment Furnaces: Ideal for applications requiring high-temperature environments.

Production Details

Raw Materials: High-purity quartzite and silica, bonding agents, and premium additives.
Manufacturing Process: Stringent quality control at each stage, from batching to mixing, ensuring consistency and optimal performance.
Quality Control: Comprehensive chemical and physical testing, including high-temperature performance verification.
Curing & Drying: Proper curing and controlled drying are essential for achieving optimal strength, durability, and performance.

Packing and Shipping Details

Standard Packing: 25 kg paper bags with moisture-proof inner lining to prevent moisture absorption.
Bulk Packing: Jumbo bags available for large-scale orders.
Palletizing: Wooden pallets with shrink-wrapped packaging for safe transportation.
Shipping Methods: Available by sea, truck, or rail depending on customer requirements.
Delivery Form: Dry powder, ready for on-site mixing.

All products are securely packed to prevent moisture absorption and damage during transportation.