refractory

White corundum is a kind of high purity alumina ceramic material, which is also one of the famous ceramic materials in the industry. Compared with ordinary ceramic materials, white corundum has the ad

Characteristics of refractory materials: The special functional role played by the metallurgical process in use is often used as a single component or combined with some auxiliary refractory products,

Alumina content is greater than 90%, corundum brick as the main crystalline phase of refractory products. High compressive strength at room temperature (up to 340MPa). High load softening initial temp

Fused corundum is made from forged alumina or bauxite, which is melted in a restored atmosphere by electric arc furnace, separated from metals and other impurities, and then condensed. Depending on th

The drying system is the sum of the conditions of corundum brick brick when drying. It includes drying time, temperature and relative humidity of entering and discharging drying medium, moisture befor

1 Transport of refractory materials and refractory products 1.1 All refractory materials and refractory products used in furnace construction must have a factory qualification certificate that meets t

Firebrick stacking skills: 1. According to different parts of the furnace fire bricks are stacked; 2. According to the composition of firebrick, firebrick specification and size, respectively stacked;

The following common problems should be avoided when laying refractory bricks: (1) Dislocation: that is, uneven between layers and layers, blocks and blocks; (2) Tilt: that is, uneven in the horizonta

According to Al? O? -SiO? Binary phase diagram of the system, mullite composition in Al? O? 79%, SiO%21% or so is more appropriate, but considering the presence of a certain amount of impurities in th

The synthesis method of mullite can be divided into sintering method and electric melting method. Sintering method can be divided into dry method and wet method according to the way of raw material pr

The production of mullite materials can generally be made of kaolinite, sillimanite group minerals, aluminum hydroxide or aluminum oxide and silicon dioxide directly synthesized. Clay materials react

Is mullite produced in 3Al? O? ·2SiO? The crystalline phase is the main component of refractory raw material. Mullite is divided into natural mullite and synthetic mullite. Natural mullite is r