Refractory cement, also known as high aluminum cement, or aluminate cement, is bauxite and lime as raw materials, prepared according to a certain proportion, by calcination, grinding a kind of aluminate based minerals, alumina content of 50% of the hydraulic cementing material, is a fast hard, high strength, heat and corrosion resistance of high temperature resistant materials.
Refractory cement in refractory castable is actually to play the role of a binder, the aggregate, fine powder and other items to bond, so as to form a whole. Due to the special use environment, this adhesive needs high strength, high temperature resistance, fast curing speed, easy to use and other characteristics, and can adapt to different construction methods of amorphous refractory materials, such as pouring, spraying, concrete, etc.
1, refractory cement plasticity is good, easy to use in construction, and the viscosity of refractory cement, strength are relatively large, in the use of refractory cement, there is a good corrosion resistance.
2, the refractoriness of refractory cement is very high, the refractoriness of refractory cement can be as high as 1650 ° C, which is a very good refractory material, but if the temperature is too high, more than 1300 ° C, it is easy to crack
3, refractory cement has good peeling resistance, and has good slag resistance, so refractory cement is widely used in coke oven, glass kiln, blast furnace hot blast furnace, other industrial kiln, which refractory cement application industries also include: metallurgy, building materials, machinery, petrochemical, glass, boiler, electricity, steel, cement, etc., has good flame retardant performance.
In addition, refractory cement has the characteristics of good chemical corrosion resistance and strong plasticity. Because of its good processing performance, it can be made into refractory products of various shapes and sizes through different processing technologies.