Insulation and refractory castables are an important part of indefinite refractory materials. They can be used as the thermal insulation layer of thermal equipment or directly in contact with the flame for lining, with the dual performance of refractory and heat insulation. It has the characteristics of small bulk density, high strength, small change in burning line, low thermal conductivity, convenient construction, good integrity and air tightness, high thermal efficiency and long service life, which can effectively reduce the weight of the furnace lining and reduce costs. In recent years, it has been widely used in metallurgy, petrochemical industry, machinery, electric power, building materials and other industries; and in some installations, heat-resistant refractory castables have been used instead of traditional brick structures, and good results have been achieved. Development direction. This series of products has a temperature of 800-1700°C and a bulk density of 0.5-1.7g/cm3, and can organize the supply of new products according to the special requirements of the design and use parts. The products can be cast, sprayed or manually applied. At the same time, our company provides high-quality services in construction, maintenance and ovens.