The difference between rammer and castable

What is the difference between ramming material and castable? First of all, these two products are classified as unshaped refractories. The ramming material is a construction method of ramming, which is hardened by heating. The castable is a construction method of pouring, which does not require heating. It can be hardened. What is the difference between ramming material and castable? The difference lies in the construction method and hardening method. Please see the details below.

Ramming and pouring definition

1. The ramming material, the ramming material is mixed on the spot, and the air pressure is not less than 0.5MPa. The air pressure is not less than 0.5MPa. The parts with less material amount or unimportant use can also be knotted by hand. Graded refractory aggregates, powders, binders, admixtures and water or other liquids are mixed. Therefore, the lining of refractory ramming materials has a low moisture content and is dense and dense, and its performance is better than that of the same material. Refractory castables. The disadvantage of refractory ramming materials is that the construction speed is slow, the labor intensity is high, and there is a tendency to be replaced by dry vibrating materials and high-quality refractory castables.

2. Castables and castables are generally cast and formed by pouring, vibrating or tamping at the site of use, and can also be made into prefabricated parts.

Application and Classification

What is the difference between ramming material and castable, the castable has high fluidity and is widely used,ramming materialThe amount of material is small or the use of unimportant parts can also be manually knotted. The ramming materials are classified according to the raw materials: high alumina, clay, magnesia, dolomite, zirconium and silicon carbide-carbon refractory ramming The castables are classified according to the raw materials: 1. According to the porosity, there are two kinds of fine refractory castables and heat-insulating refractories with a porosity of not less than 45 percent; 2. According to the binding agent, there are hydraulic binding and chemical binding. , agglomerated bonded refractory castables.

Castable is a kind of amorphous refractory material that is widely produced and used. It is mainly used to build all kinds of heating furnace linings and other overall structures. Use, high-quality products can also be used in exercise furnaces.

The ramming material is a bulk material made of silicon carbide, graphite, and electric calcined anthracite, mixed with a variety of ultra-fine powder additives, and fused cement or composite resin as a binder. It is used for filling furnace cooling equipment and masonry. Filling material for body voids or masonry leveling layer. Ramming material has good chemical stability, erosion resistance, wear resistance, shedding resistance, thermal shock resistance, and is widely used in metallurgy, building materials, non-ferrous metal tempering, chemical industry, machinery and other manufacturing industries.