Silicon carbide ramming mass

Silicon carbide ramming mass is an amorphous refractory material made of silicon carbide (SiC) as the main raw material, combined with high-purity refractory aggregate, fichário, and additives. This material has high thermal conductivity, excellent thermal shock resistance, erosion resistance, e resistência ao desgaste, and is suitable for repair and lining construction of high-temperature industrial equipment, especially for working conditions that require rapid sintering and long-term durability.

Silicon carbide ramming material characteristics

High refractoriness: temperature resistance can reach above 1600℃, suitable for extremely high temperature environments.
Excellent thermal shock resistance: low thermal expansion coefficient, can withstand drastic temperature changes without cracking.
Chemical erosion resistance: good erosion resistance to acidic and alkaline slag and molten metal (such as aluminum and copper).
Alta condutividade térmica: SiC’s high thermal conductivity (~120 W/m·K) helps to dissipate heat evenly and improve the thermal efficiency of equipment.
Forte resistência ao desgaste: suitable for high wear areas, such as metallurgical furnace tapping, kiln lining, etc..
Convenient construction: ramming molding, suitable for repairing and masonry of complex shapes.

Silicon carbide ramming material introduction

projeto		índice
		SC30	SC50
Sic %		≥30	≥50
Bulk density g/cm3		≥2.5	≥2.6
Porosidade aparente %		≤18	≤18
Normal temperature compressive strength MPa	110℃×24h	≥60	≥80
	1100℃×3h	≥100	≥120
Heating permanent line change % 1400℃×3h		±0.3	±0.2
Wear resistance cm3		≤6	≤4

Application of silicon carbide ramming mass

silicon carbide ramming mass application

Metallurgical industry: Repair of linings of electric furnaces, blast furnace tapping channels, ladles, and tundishes.

Nonferrous metal smelting: Linings of aluminum electrolytic cells and copper smelting furnaces.

Chemical industry: Anti-corrosion layer of gasifiers and incinerators.

Ceramic/glass industry: Wear-resistant layer of furnace bottoms and combustion chambers.

Others: High-temperature pipes, hot blast furnaces, and other areas that require rapid repair.

Construction method

Matrix treatment: clean the construction surface, remove impurities, and loose layers.
Mixing and stirring: Add binder (such as water or resin) in proportion and stir evenly until there is no dry powder.
Ramming and molding: ramming in layers (each layer ≤ 50mm) to ensure that it is dense and has no pores.
Curing and baking: after natural curing for 24 horas, bake according to the heating curve (avoid rapid heating).