La differenza tra materiali calcinabili e materiali da speronamento

Castables and ramming materials are both unshaped refractory materials. I materiali calcinabili e di pressatura sono costituiti da vari aggregati, polveri, e leganti in una proporzione ragionevole. They are both unshaped refractory materials. Although they are the same type of amorphous refractory materials, they differ greatly.

What are the differences between castables and ramming materials?

Construction methods are different

Ramming mass is constructed by ramming and hardened by heating. It is usually formed directly or after adding liquid by pounding (manual or mechanical) or vibration and hardens when the temperature is higher than room temperature.

Calcinabili are constructed by pouring and can harden without heating. It is mainly delivered in dry form and is used after mixing with water or other liquids. Usually, vibration casting, non-vibration (self-flowing) casting, ramming, spraying, or tamping when necessary are used to form and harden without heating.

Different material classifications

Ramming materials are classified according to materials: alto contenuto di allumina, argilla, magnesite ramming mass, dolomite, zirconium, and silicon carbide-carbon refractory ramming materials.

Castables are classified by material: 1. According to porosity distribution, there are two types: dense calcinabili refrattari and insulating refractory materials with a porosity of not less than 45%; 2. According to binders, they are divided into hydraulic bonding, chemical bonding, and cohesion and combined with refractory castables.

Different applications

Castable is the most widely produced and used unshaped refractory material at present. It is mainly used to construct various heating furnace linings and other integral structures. It is used in heavy-duty furnaces and heating equipment in metallurgy, petroleum, industria chimica, materiali da costruzione, energia elettrica, and machinery industry. High-quality shock absorbers are widely used in metallurgy, materiali da costruzione, and non-ferrous metals. Smelting, chimico, macchinari, e altre industrie manifatturiere. Products can also be used in smelting furnaces.

The ramming material is a bulk material made of silicon carbide, graphite, and electrically calcined anthracite as raw materials, mixed with various ultrafine powder additives, and fused cement or composite resin as a binding agent. Viene utilizzato per colmare lo spazio tra l'attrezzatura di raffreddamento del forno e la muratura o il materiale di riempimento per lo strato di livellamento della muratura. The ramming material has good chemical stability, erosion resistance, and wear resistance.