castable is an unshaped refractory made of refractory aggregate as the skeleton, powder as the matrix, binder and admixture. The transportation method is dry powder transportation or prefabricated component transportation, and the construction method is to stir and mix with water or other liquid additives before pouring. The shelf life of most castables is about six months, which means that six months is the shelf life of castables. Let us understand the common sense of castables.
1. Castable is a kind of monolithic refractory which is widely produced and used at present. Mainly used to construct various heating furnace linings and other integral structures. Certain varieties composed of granular materials can also be used in smelting furnaces. For example, magnesium-carbon castables are mainly used in smelting furnaces that are corroded by alkaline slag; calcium aluminate cement castables can be widely used in various heating furnaces and other thermal equipment without slag erosion; phosphate castables are based on The nature of the refractory powder pellets can be widely used in heating furnaces for heating metals, and can also be used in tapping troughs, tapping troughs, coke ovens, cement rotary kilns, and direct contact with molten metal and high-temperature heat-treated materials.
2. Some parts of metallurgical furnaces and other vessels can be repaired with phosphate castables. In some parts where the working temperature is not very high and wear resistance is required, use abrasion resistant aggregate and phosphate combination. It is more appropriate to make castables. If the castable is made of corundum or silicon carbide refractory materials, it will generally have better results when used in a reducing atmosphere. If appropriate steel fibers are added to the castable to form the steel fiber castable, it is resistant to impact and abrasion. The use effect is very good.
Castables are mainly used to construct various heating furnace linings and other integral structures, and some good varieties can also be used in smelting furnaces; such as aluminate cement castables can be widely used in various heating furnaces and other slag-free, acid-free corrosion Of thermal equipment.
Wechat Us 
