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Refractory Ramming Mass  Material

Refractory Ramming Mass

Refractory ramming mass, also known as ramming refractory, is a type of refractory material that is used for lining and repairing various types of furnaces and other high-temperature equipment. It is called "ramming" mass because ramming castable is installed by ramming or tamping the material into place using a manual or mechanical ramming tool.

 

  • Payment :

    In Advance
  • Product Origin :

    China
  • Shipping Port :

    Shanghai Port
  • Lead Time :

    15 Working days

Refractory ramming mass is typically composed of a combination of refractory aggregates, binders, and additives. The aggregates are fine-grained materials such as alumina, magnesia, or silicon carbide, which provide the bulk of the material and contribute to its physical and thermal properties. The binders and additives are added to improve the workability, strength, and performance of the ramming mass.

Applications:

  1. Furnace linings: Ramming mass is used to line the bottoms, walls, and other parts of various types of furnaces, such as induction furnaces, electric arc furnaces, rotary kilns, and ladle linings. It provides thermal insulation, erosion resistance, and protection against chemical attack from molten metals and slag.

  2. Tap holes and tuyeres: Ramming refractory is used to repair and seal tap holes and tuyeres in furnaces. These areas are subjected to high temperatures and mechanical stress, and ramming mass helps to maintain the integrity of the furnace lining and prevent leaks.

  3. Erosion-prone areas: It is applied in areas where erosion or abrasion is a concern, such as the hearth and lower sidewalls of furnaces. Ramming refractory provides a dense and resistant lining that can withstand the erosive effects of molten metals, slags, and gases.

The selection of the specific type of refractory ramming mass depends on factors such as the temperature requirements, chemical environment, and mechanical stress in the application. Different types of aggregates, binders, and additives can be chosen to achieve the desired performance characteristics.

The installation of refractory ramming mass requires skilled labor and proper techniques to ensure proper compaction and adhesion to the substrate. It is important to follow the manufacturer's instructions and guidelines for correct installation and curing procedures to achieve optimal performance and longevity of the ramming mass lining.

Product parameters:

Silica Ramming Mass Indexes
SiO2, % ≥ 90
Fe2O3, % ≤ 2
BD, g/cm3 ≥ 2
Refractoriness, ℃  ≥ 1750
Strength at normal temp, MPa ≥ 2
Cold crushing strength, MPa ≥ 10
Alumina Ramming Mass   DMR-1 DMR-2
Max temp, ℃ ≥ - 1500 1600
BD, g/cm3 ≥ - 2.6 2.65
Al2O3, ≥ - 75 78
 SiO2, ≥ - 20 15
CBS, Mpa ≥ 110℃×24h 8 10
  1100℃×3h 8 10
CCS, Mpa ≥ 110℃×24h 80 100
  1100℃×3h 80 100
BRLC,% ≥ 110℃×24h ±0.5 ±0.5
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