CastableRefractory1

Low Creep High Alumina Brick Properties In the development of low creep high alumina bricks, a certain amount of quartz particles are generally added. There are different views on the action and effect of quartz particles. It is generally believed that the effect of adding quartz has two main aspects, namely, increasing the viscosity of the high temperature liquid phase and utilizing the expansion effect and the expansion stress effect produced by the unbalanced reaction to improve the load resistance. The addition of quartz particles to the low creep  high alumina brick can increase the SiO2 content in the liquid phase, increase the degree of crosslinking of the silicon oxytetrahedron in the liquid phase, and increase the viscosity. At the same time, due to the presence of part of Al2O3 in the matrix, it has strong diffusion ability at high temperature, and Al3+ diffuses into the quartz particles to form an aluminosilicate layer with cristobalite as the core. Al2O3 reacts ...

The blast furnace hot blast stove is one of the important auxiliary equipments of the blast furnace. It is a regenerative heat exchanger that can provide a certain temperature of hot air for the efficient operation of the blast furnace, that is, it will burn the coke burning air in the blast furnace. From normal temperature to high temperature (about 1200~1350 °C), the air volume should be sufficient, and the supply should be continuous. Therefore, each blast furnace generally needs to be equipped with 3 to 4 hot blast stoves for heating and air supply alternately. Recently, one of the contents of the modernization of blast furnace ironmaking technology is the use of high air temperature technology, which is also an indispensable important condition for ironmaking production. Therefore, both foreign and domestic have always put the work of raising the temperature of the hot stove to an important agenda. The practical experience proves that the hot air temperature can not only reduce ...

Sillimanite B ricks Properties 1. Sillimanite bricks have good creep resistance, low creep rate in high temperature environment. 2. Sillimanite refractory bricks have good thermal shock resistance. 3. Sillimanite bricks have The load is softened and stabilized. 4. Sillimanite bricks have good resistance to gas attack. What is a sillimanite brick?  1. S illimanite brick is a refractory brick that participates in some sillimanite in high alumina brick materials. It is customarily called sillimanite brick. It is a kind of silicon   lined high   alumina brick, which is a  refractory  product variety of modified high   alumina  refractory  brick. S illimanite   brick is made of bauxite as the main  refractory  material, adding sillimanite powder and participating in bonding agent, after mixing and molding .   Refractory bricks fired at high temperatures. Because sillimanite bricks appear in the high tempera...

High Aluminum Poly Light Insulation Brick Feature 1. Insulation and heat insulation: Because the aerated concrete is in the process of production, the internal pores are formed. These pores constitute an air layer in the material guessing, which greatly improves the thermal insulation effect, so that the thermal conductivity of the aerated concrete is 0.11. -0.16W/MK. The insulation effect is 5 times that of clay  fire  bricks and 10 times that of general concrete. 2. Light weight fire brick:  Lightweight brick has a dry capacity of only 500-700Kg/m*3, which is 1/4 of general concrete, 1/3 of clay, and 1/2 of hollow block, because its bulk density is smaller than water. Commonly known as aerated concrete floating on the water, the use of this refractory product in the construction can reduce the weight of the building and greatly reduce the inductive cost of the building. 3. Earthquake resistance: The same building structure uses  high alumina poly...